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  • Johansen, Kerstin
    Linköpings universitet, Monteringsteknik.
    Collaborative Product Introduction within Extended Enterprises2005Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    The trend of outsourcing within the electronic industry has contributed to the creation of new types of extended enterprises. These extended enterprises must be able to manage a challenging situation with shorter product life cycles and increased collaboration between companies during the vital product introduction process. For the electronic industry, which is currently acting in an “era of hyper-competition”, it is a challenge to implement an efficient and flexible collaboration within an extended enterprise during the product introduction process. In the product introduction process, a product design is prepared for and transferred into production.

    During the course of this research, the electronic industry has changed continuously. Empirical data were first collected within an Original Equipment Manufacturer (OEM) that was responsible for its own production. Based on a strategic decision at the OEM, a new extended enterprise was established. In general, these new extended enterprises within the electronic industry consist of: a “product owner” in the form of an OEM that owns the product design and its brand; a “producer” in the form of an Electronic Manufacturing Services (EMS) company that is responsible for the production; and suppliers of services, material, components, equipment etc. However, in the later stages of this research the studied EMS was responsible for the product introduction, production and distribution of the product to the end user. In order to compare and contrast trends and lessons learned in similar industries, case studies within the mechanical engineering and aerospace industries also were performed.

    The dissertation primarily describes the process of collaborative product introduction (PI) within the electronic industry, and presents among other things a number of general conditions for efficient collaborative PI within an EE in that industry. First, a clearly communicated definition of what is included in product introduction is needed. A second condition is that early participation from all involved partners in the EE’s product introduction process supports efficient collaboration. Third, clear communication and information handling within the extended enterprise – both internally and externally – was found to facilitate collaboration. Fourth, business approaches should be built on trust, reliability and respect for each other’s competence. Finally, the importance of cultural awareness, both between different companies and countries, cannot be ignored. This research also presents a framework for supporting collaborative product introduction within an extended enterprise, which serves to both synthesize and summarize much of the research.

  • Nilsson, Magnus
    Linköpings universitet, Institutionen för samhälls- och välfärdsstudier.
    Det blev inte av : äldre ensamstående män utan barn på landsbygden: rapport nr 3 från forskningsprojektet Boende, åldrande, livslopp på landsbygden2011Book (Other academic)
    Abstract [sv]

    Sverige har det gjorts få studier av vad det innebär att åldras på landsbygden. Den övervägande majoriteten av forskningen om äldre människor och deras livsvillkor produceras med empiriskt material, såväl som frågeställningar, som tar sin utgångspunkt i de förutsättningar som det urbana livet ger. Det urbana fungerar normerande och livet på landsbygden uppfattas ofta i termer av vad som saknas där i förhållande till livet i staden. Kunskapsutvecklingen om livet i glesbygd har därmed kommit att hamna i skymundan (SOU 2006:106). Denna studie är ett bidrag till forskningen om att åldras på landsbygden och i fokus är livet och livsvillkoren för äldre ensamstående män utan barn utifrån ett genusperspektiv. För studien har elva ensamstående barnlösa män på landsbygden intervjuats.

  • Olsson, Sanna
    et al.
    Jönköping University, Jönköping International Business School.
    Jungnelius, Gustaf
    Jönköping University, Jönköping International Business School.
    The impact of Sweden ́s Negative Repo Rate on FDI: A quantitative analysis of how Sweden’s monetary policy has affected foreign direct investments2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Sweden’s central bank implemented a negative interest rate policy (NIRP) in 2015, one year after adopting a zero-interest rate policy. Due to the monetary policy’s untested framework,experts are divided on the effectiveness of such a policy as well as its fortitude when faced with an economic recession. The lack of research on how the interest rate affects various economic metrics has left ample room for analysis and discussion on the subject. The aim ofthis thesis is to analyze how Sweden’s monetary policy has affected the flow of foreign directinvestments (FDI). Specifically, the paper will be focused on discovering the effect of theRiksbank’s negative repo rate policy on net FDI inflows between 2006 and 2017. Our quantitative analysis found no significant relationship between Sweden’s repo rate and itsFDI inflows. However, significance was found in the variables exchange rate, research and development expenditures, corporate taxes, and wages.

  • Andersson, Ellen
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Klingspor, Charlotte
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management.
    Materialflödeseffektivisering mellan godsmottagning och montering: en kartläggning av aktiviteter mellan godsmottagning och montering2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose – The purpose of the thesis is to explore potential enhancements for the material flow between the goods receiving and the assembly line. The purpose has been broken down to three research questions:

    • What activities affect the material flow between the goods receiving and the assembly line?
    • How does the activities affect the material flow between the goods receiving and the assembly line?
    • How can the material flow between the goods receiving and the assembly line be more efficient?

    Method – A pilot study was conducted to define a problem, which the purpose and research questions of the thesis was based on. A review of literature was carried out alongside a case study. Observations, document studies and interviews were the methods of choosing for the collection of data. To establish the theoretical framework a literature review was carried out. A comparison between the findings of the case study and theoretical framework answered the study’s research questions.

    Findings – The study identified several problems with an immediate impact on the material flow. Non-value adding operations such as material handling and stock locations ties capital and requires resources. To correctly share information and to have a close cooperation between departments is considered as an important factor for the material flow’s efficiency. By using line back principle non-value adding operations can be pushed upstream in the supply chain to enable an implementation of just in sequence.

    Implications – The studied area consists of already existing theories therefor no additional research has been contributed. However, a new aspect of already existing theory has enlightened the relationship between just in sequence and line back principle. Organizations can use the case study as a basis of discussion for a mapping and improvements of the material flow between the goods receiving and the assembly lines.

    Limitations – The thesis ability to generalize can be questioned since it consists of only one case company. The material flow was constantly in motion which complicated the collection of data. Therefor the findings of the study can be affected by this.

  • Åkerström, Fanny
    et al.
    Langdell, Tova
    Solcellers bidragande faktorer i en byggproduktion2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of this study is to investigate whether solar cells could have supplied to the energy needs of a construction project during its building phase and see which advantages and disadvantages this would have brought the company.

    Method: A case study has been carried out on a selected project with help from a selected company. The data collection methods that have been used for the empirical work have been literature research, document analysis, calculations from a solar cell simulation program and interviews.

    Findings: The results of the study answer the questions of the study and show how much solar cells could have contributed to the project, relative to the project’s electricity use. The findings also show how the placement of solar cells on the barracks and tool containers could have been carried out in order to retrieve as much energy from the sun as possible.

    Implications: The conclusion of this study is that the solar cells require a considerable amount of space, and therefore the case study project could not have used solar cells only to cover the project’s energy needs. Solar cells require maintenance and are a great cost to the companies involved, but can also promote the company’s reputation and contribute to a more sustainable society.

    Limitations: The study has been limited to one construction project of a tennis arena located in the Stockholm region, which was built by a construction company between August 2016 and February 2018. The study only takes the electricity usage during the production phase into account and the aim were to see if electricity from solar cells in the construction area could have contributed to the electricity needs during this period. The focus of the report is not costs, use of batteries, or regulations concerning the project, but these aspects are briefly covered.

    Keywords: Solar cells, solar electricity, building production, renewable energy, energy production.

  • Khadi, Mohammed
    et al.
    Jönköping University, School of Engineering.
    Abdulkareem, Rawa
    Jönköping University, School of Engineering.
    En studie om BIM-användning inom Jönköpings Kommun2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Compared to other industries, the construction industry is behind in terms of the use of BIM in the work activities. The challenges that have emerged over the years have increased progressively and today the focus is on building sustainably, economically and environmentally friendly. One major reason for this is that the construction industry is generally way behind in the development and utilization of IT. Another major reason for the minimal use of BIM, which has been made by previous research on BIM usage, is that developers lack the competence and knowledge to require BIM in a project. However, it is not only the construction companies that are currently lagging behind in terms of BIM use, but also the various municipalities in Sweden that today are all at different levels regarding the use of BIM in the work activities. The aim of the study is to investigate what advantages and disadvantages the BIM use can bring to Jönköping municipality and how the municipality can start implementing BIM in their work activities.

    Method: In order to achieve the goal with this report, qualitative semi-structured interviews have been used as a method during the work process. Semi-structured interviews are made to give the interviewees freedom to formulate the answers.

    Findings: All interviewees agree that BIM usage will be improved in the near future and that they are working on implementing the tool within the municipality. They believe that the use of BIM will have a great benefit as an information transfer, but at the same time will have a great benefit in the management phase. At the same time, the interviewees describe that the municipality is also agree unanimously that there is no problem getting financial support for the development, but that much external assistance will be required in order to implement BIM in the municipality. The municipality already has other large projects underway, at the same time not all the skills and knowledge to be able to use BIM without help.

    Implications: The municipality do not currently use BIM even though they are aware of the clear advantages BIM usage can bring. The biggest reason may be that there is a lack of knowledge within the municipality or resources and time to start and introduce a new working method. However, the municipality are in favour of this development but for this development to be carried forward with clear guidelines and recommendations on how BIM usage can be utilized in the best way.

    Limitations: The investigation that has been accomplished is most relevant for Jönköping municipality, as the investigation have been done precisely in one municipality. The study can therefore not be seen as general since the municipalities in Sweden are at different levels when it comes to BIM usage.

    Keywords: Administration Management, Building Information Management, Building information Modeling, Client, Implementation, Information transfer

  • Nilsson, Magnus
    et al.
    Linköpings universitet, Samhälle, mångfald, Identitet (SMI).
    Jönson, Håkan
    Linköpings universitet, Institutionen för samhälls- och välfärdsstudier.
    Äldre i massmedierna: Osynliga eller förknippade med problem2009In: Åldrande, åldersordning, ålderism / [ed] Håkan Jönson, Linköping: Linköping University Electronic Press , 2009, 1, p. 96-104Chapter in book (Other academic)
    Abstract [sv]

    Vilken är den massmediala bilden av äldre? Givetvis finns det inte en utan många. Dessutom är det inte självklart vad som menas med äldre. Ordet äldre har i princip två olika men sammanlänkade betydelser. Den ena avser en relation; att vara äldre än något eller någon. Den andra betydelsen handlar om benämnandet av en kategori människor. I Sverige syftar "de äldre" vanligen på personer som fyllt 65 år, men betydelsen är beroende av sam-manhang och relationer. När "de äldre" pekas ut som den ekonomiska krisens vinnare avses för det mesta ålderspensionärerna. En tidningsartikel som anger att våldtäktsmannen ofta är "en äldre man", handlar däremot inte om män över 65 år utan här står begreppet i relation till offret som är "en yngre kvinna". Inom idrotts- och nöjesvärlden används ofta lokala "ålderstrappor", den som anses gammal i ett sammanhang kan vara ung i ett annat. Under år 2005 och 2006 kommenterades exempelvis den 33-årige fotbollsspelaren Zinedine Zidanes spel i termer av att han var gammal, trött eller slut. När han gjorde något briljant resulterade detta i uttryck som "än kan gubben" och paradoxalt nog "där såg vi lite av den gamle Zidane". När man uppnår en för sammanhanget kritisk ålder – som idrottsperson, nöjes-profil, politiker, industriledare etc. – tenderar alltså ens handlingar att tolkas som något man gör på grund av eller trots åldern. Som mediekonsument kan man öka sin åldersmedvetenhet genom att exempelvis notera i vilken ålder (och för vilket kön) som åldrandet kommenteras. Prova med sportkröni-korna i kvällspressen eller kändisporträtten i SJ:s tidning Kupé! Zidane pen-sionerade sig för övrigt efter fotbolls-VM 2006.

    I detta kapitel ska vi i huvudsak ägna oss åt massmedial rapportering om "äldre" med betydelsen personer över 65 år, men de kontextuella betydelserna vi kommenterat ovan bör hållas i minnet. Vi återkommer till dem i slutet.

  • Metaxas, Vasileios
    Jönköping University, Jönköping International Business School.
    Government Spending and people’s Well-Being: A causality analysis for 103 countries2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
  • Draper, Robert
    Jönköping University, Jönköping International Business School, JIBS, Economics.
    How do changing employment patterns affect the economic incentives to migrate within the England and Wales?2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    It is important for any country to understand why its population makes certain choices on where to locate, since it can help to guide policy aimed at reviving deprived areas. Over the past few decades there has been a general trend for the population to migrate from the North to the South in England and Wales. Similarly, there has been an imbalance in the spread of new opportunities, with advanced services tending to locate in the South, particularly close London. This paper investigates whether changing employment patterns, away from manufacturing and towards services, has helped to facilitate migration within the England and Wales. There has been a distinct lack of empirical analysis in this area due to data limitations. Prior studies have had to utilise broad geographic regions in their analysis, providing limited insight into the reasons for such change. This paper aims to expand on these studies by looking at data on a more local level. This study made use of fixed panel regressions in order to estimate the effects of a region’s employment structure upon migration rates. The results indicate that neither the sector of employment, nor unemployment rates directly influence an individual’s likelihood to migrate. However, there is evidence to support the idea that population density influences migration, potentially as a result of agglomeration economies.

  • Kerpcarova, Barbora
    Jönköping University, School of Education and Communication, HLK, CHILD.
    The involvement of preschool teachers in children's play in Sweden2019Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
  • Tai, Lok Hei
    Jönköping University, School of Education and Communication, HLK, CHILD.
    Factors predicting the school engagement of students with self-reported long term health conditions and impairment in a mainstream school2019Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Adolescents spend a large proportion of their everyday life in school, and schooling is vital for future success and well-being. One group that are in risk for reduced school success are children with disabilities or long-term illnesses. The aim of this study is to investigate whether the factors age, gender, self-perceived relationship with teachers, self-perceived relationship with peers and parental bonding can predict school engagement of students with self-reported long term health conditions and impairment. School engagement is defined as having three aspects, behavioral, emotional and cognitive. HBSC (Health behaviors in School Children) data from Sweden is used. The result shows that self-perceived relationship with teachers and age are related to all three components of school engagement, behavioral, emotional and cognitive in this study.  Self-perceived relationship with peers is related to emotional school engagement only. Gender is related to cognitive engagement. Parent bonding cannot predict any of the three aspects of school engagement. This study demonstrated that school environment, especially teachers, is important for the school engagement of students with long-term health condition and impairment. Dispite the inconsistent results with previous reseach which focus on typical functioning students, School and educators should focus on how to maintain and improve and promote school engagement of students with long-term health condition and impairment in mainstream school setting.

  • Henriksson, Fredrik
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Institutionen för ekonomisk och industriell utveckling, Maskinkonstruktion.
    Integrated Product and Production Research on Introducing Internet of Things in Swedish Wood Industry Products2018In: Procedia Manufacturing, E-ISSN 2351-9789, Vol. 25, p. 10-16Article in journal (Refereed)
    Abstract [en]

    To enable transitioning the Swedish economy into a bioeconomy, Swedish wood industry need to increase added value and introduce new products to market by introducing new technology and improving the product and production development processes. Research in automotive industry have shown the need for integrating product and production development when introducing new technology in existing production systems, and have indicated a possibility of using specifically designed student case projects in order to generate qualitative data. In this paper, one student case project on product and production development in the Swedish wood industry, involving IoT wood products, is presented and evaluated.

  • Grahn, Sten
    et al.
    Swerea IVF AB, Sweden; Mälardalen University (MDH), Sweden.
    Gopinath, Varun
    Linköpings universitet, Maskinkonstruktion.
    Wang, Xi, Vincent
    KTH, Royal Institute of Technology, Stockholm 11428, Sweden.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Exploring a Model for Production System Design to Utilize Large Robots in Human-Robot Collaborative Assembly Cells2018In: Procedia Manufacturing, E-ISSN 2351-9789, Vol. 25, p. 612-619Article in journal (Refereed)
    Abstract [en]

    It has been shown that large robots can be safely installed for human-robot collaborative assembly cells in experimental setups. It has also been found that these installations require demanding considerations of a significant number of layout and safety parameters. This indicates that successful commercial implementations will require a resource efficient model for production system design that anticipates utilization of large robots in collaborative settings. Experiences from experimental setups have been used to explore a basic model for such production system design, to stimulate a discussion regarding what model characteristics should be tested and validated in future research.

  • Lindholm, Jim
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Is Design Automation a Feasible Tool for Improving Efficiency in Production Planning and Manufacturing Processes?2018In: Procedia Manufacturing, E-ISSN 2351-9789, Vol. 25, p. 194-201Article in journal (Refereed)
    Abstract [en]

    The production planning is a repetitive process that demands engineering hours and expertise. Many parameters must be considered, and inefficiencies lead to increased lead times. The hypothesis is that valuable time within the manufacturing stages can be saved through improved engineering tools. This article will explore to possibilities to increase the utilization of digital tools to support the engineers in their production planning activities, and to improve the efficiency of manufacturing processes. Through study visits and interviews at a product owning company with manufacturing in-house, proposals for areas that could be improved with design automation will be presented.

  • Henriksson, Fredrik
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Wilhelmsson, Malin
    Linköpings universitet, Maskinkonstruktion.
    University as a Laboratory: Exploring how engineering education can support industrial needs2018In: NordDesign 2018: DESIGN IN THE ERA OF DIGITALIZATION / [ed] Ekströmer, Philip; Schütte, Simon and Ölvander, Johan, 2018Conference paper (Refereed)
    Abstract [en]

    Universities have two major tasks; generating knowledge through research and educating students for academia, the public sector and the industry. In this paper, the authors explore how engineering education can support industrial needs on two fronts: creating a case study platform for research and preparing graduating engineering students to become more capable engineers when beginning their working life in industry, by applying the ""University as a laboratory"" concept. ""University as a laboratory"", as coined by Henriksson (2017), means that research-based case study projects are brought into educational courses where students are assigned to work as engineering designers, and researchers can observe problem solving patterns and evaluate different methodologies (also presented by Henriksson and Johansen (2016)). Though the concept have been presented earlier (Henriksson and Johansen 2016, Henriksson 2017), a more thorough evaluation is in order to further understand the effects of integrating research and education in the ""University as a laboratory"" concept. This is done through the performance and evaluation of a research-based engineering design education project in collaboration with automotive industrial partners; a project on lightweight and sustainable product and production development. The study evaluates three aspects of the project; the researchers' view, the teachers' view and the students' view. Data on all three aspects has been gathered through group interviews, observations and written assignments during the project, as well as interviews with participating students one year after the end of the project and workshops with researchers and teachers involved in the project. Analysis has been done on a qualitative basis, to investigate whether case projects are suitable for deep understanding in engineering fields and whether project courses are suitable to test different approaches of integrated product and production development.

  • Gopinath, Varun
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Ore, Fredrick
    Global Industrial Development, Scania CV AB, Södertälje, Sweden; Mälardalen University, School of Innovation, Design and Engineering, Eskilstuna, Sweden.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Safe Assembly Cell Layout through Risk Assessment: An Application with Hand Guided Industrial Robot2017In: Proceedings of the 50th CIRP Conference on Manufacturing Systems / [ed] Mitchell M. Tseng, Hung-Yin Tsai and Yue Wang, Elsevier, 2017, Vol. 63, p. 430-435Conference paper (Refereed)
    Abstract [en]

    Risk assessment is a systematic and iterative process which involves risk analysis where the probable hazards are identified and corresponding risks are evaluated along with solutions to mitigate the effect of these risks. In this article the outcome of a risk assessment process will be detailed where a large industrial robot is being used as a intelligent and flexible lifting tool that can aid operators in assembly tasks. The realization of a collaborative assembly station has several benefits such as increased productivity and improved ergonomic work environment. The article will detail the design of the layout of a collaborative assembly cell which takes into account the safety and productivity concerns of automotive assembly plants.

  • Henriksson, Fredrik
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    An outlook on multi material body solutions in the automotive industry – possibilities and manufacturing challenges2016In: SAE Technical Paper Series, Detroit (MI), USA: Society of Automotive Engineers , 2016Conference paper (Refereed)
    Abstract [en]

    In the automotive industry, mass reduction and lightweight design is a continuing trend that does not show signs of declining. When looking at where to reduce weight in a vehicle, the body is a preferential subsystem due to its large contribution to overall mass and the stability of body composition over a specific model range. The automotive industry of today moves toward a greater differentiation in materials that compose a car, which can be seen in the several different multi material vehicle bodies that have been introduced by manufacturers in recent years. But while mixing materials may contribute to a good compromise between weight reduction and vehicle cost, it also proposes a number of challenges that need to be addressed. Among other material factors, the different coefficients of thermal expansions might introduce new stresses during painting and curing. Joining processes and possible chemical reactions between materials also needs to be taken into account, the same with the question of whether to integrate or differentiate different functions in a system. If the manufacturing plant uses mixed model assembly lines, design of end effectors for gripping multiple different materials is another challenge not previously encountered in this context. In this paper, a number of production and manufacturing related challenges are discussed, and the authors highlight different areas where the requirements of design engineering tools needs to be evaluated for these new multi material concepts and design decisions in order for automotive manufacturers to ensure future market competitiveness.

  • Henriksson, Fredrik
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Including Student Case Projects in Integrated Product and Production Development Research – Methodology Description and Discussion2016Conference paper (Other academic)
    Abstract [en]

    Within integrated product and production development research, casestudies needto be performed for data gathering purposes. Today, there are two commonly used ways to perform this research; observingindustry projects orhaving the researchers perform the projects themselves. The first option can pose data access and IPRissues, and the second optioncomes with biasing risks. Another approach is to work with studentcaseprojects, givingstudents interesting projects and findinga solution to mediate both data gathering opportunity and biasing risks. This approach has been tested at Linköping University, with students performing projects in the Vinnovafunded Production 2030 –Large Scale Production in Mixed Materials project. Two larger student case projects have been performed on the topic of material substitution and mixed material solutions within the automotive industry.In this paper, the method used to include student projects is presented along with identified benefits and drawbacks. Including student case projects in research have shown to be beneficial in research on processes, projects and methodology, but needs to be complemented by data fromindustry projects and the researcher ́s own work within integrated product and production development in order to create a more reliable analysis with high level of detail.

  • Henriksson, Fredrik
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    On Material Substitution in Automotive BIWs – From Steel to Aluminum Body Sides2016In: 26th CIRP Design Conference / [ed] L. Wang & T. Kjellberg, Elsevier, 2016, Vol. 50, p. 683-688Conference paper (Refereed)
    Abstract [en]

    Weight reduction and material substitution are increasing trends in the automotive industry. In this project, the task of substituting the steel body side in the monocoque of a large SUV towards an aluminum body side was investigated through a design engineering approach adopting a breadth-first analysis method. One conclusion based on the analysis is that the choice of joining technology would become arbitrary due to the breadth-first approach. In this paper, the authors present their findings from the aforementioned case, including the challenges with switching between materials with fundamentally different properties when performing material substitution projects. The possibility of having taken a depth-first analysis approach, and the possible effects on the project result, is discussed.

  • Grahn, Sten
    et al.
    Swerea IVF AB, Sweden; Malardalen University, Sweden.
    Langbeck, Bjorn
    Swerea IVF AB, Sweden.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Backman, Bjorn
    Swerea IVF AB, Sweden.
    Potential advantages using large anthropomorphic robots in human-robot collaborative, hand guided assembly2016In: 6th CIRP Conference on Assembly Technologies and Systems (CATS) / [ed] R. Söderberg, Elsevier, 2016, Vol. 63, p. 281-286Conference paper (Refereed)
    Abstract [en]

    Collaborative robot installations often mean man-machine workspace sharing. This mode of operation can lead to reductions of tact time and work space requirements. We have analyzed potential further benefits of man machine collaboration, where operators and powerful robots share workspace, cooperating when lifting and handling large objects. We found that this mode of operation has the potential to generate economic advantages by reducing the need for manual operators and lifting tools and by offering new opportunities for component logistics. (C) 2016 The Authors. Published by Elsevier B.V.

  • Gopinath, Varun
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Risk Assessment Process for Collaborative Assembly - A Job Safety Analysis Approach2016In: 6th CIRP Conference on Assembly Technologies and Systems (CATS) / [ed] R. Söderberg, Elsevier, 2016, Vol. 44, p. 199-203Conference paper (Refereed)
    Abstract [en]

    International safety standards state that risk assessment is the first step in understanding and eliminating hazardous work environment. The traditional method of risk assessment using Job Safety Analysis, where sequential tasks of the operator are analysed for potential risks, needs to be adapted to applications where humans and robots collaborate to complete assembly tasks. This article proposes a novel approach by placing equal emphasis on various participants working within their workspaces. An industrial case study wil be used to showcase the merits of the process when used at an early stage in the development of a collaborative assembly cell. 

  • Björnsson, Andreas
    et al.
    Linköpings universitet, Industriell Produktion.
    Jonsson, Marie
    Swerea Sicomp, Compraser Labs.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Automation of Composite Manufacturing Using Off-the-shelf Solutions, Three Cases from the Aerospace Industry2015In: Proceedings of the 20th International Conference on Composite Materials, 2015Conference paper (Other academic)
    Abstract [en]

    With an increased use of composite materials follows a need for rational, cost-efficient manufacturing processes. This paper explores how off-the-shelf solutions, developed for other purposes than composite manufacturing, can be used to build systems for automated composite manufacturing. Three demonstrators, each of them dealing with a specific type of material and all of them representing different manufacturing technologies for automated composite manufacturing, are presented and analyzed to find aspects that affect the ability to use off-the-shelf solutions. The three demonstrators target low to medium manufacturing volumes of complex products and they have been developed in collaboration with industrial partners within the aerospace industry. The conclusions drawn from the development of the demonstrators are that it is technically feasible to use off-the-shelf solutions in the three cases while adhering to the high quality standards of the industry. Furthermore three groups of aspects, quality aspects, product aspects and system aspects, which affect the ability to use off-the-shelf solutions for automated composite manufacturing, are identified.

  • Olsen, Rickard
    et al.
    Linköpings universitet, Industriell Produktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Engström, Magnus
    SAAB, Sweden.
    On Safety Solutions in an Assembly HMI-Cell2015In: SAE Technical Papers, Warrendale, PA, USA: SAE International , 2015, p. Art.nr. 2015-01-2429-Conference paper (Refereed)
    Abstract [en]

    The increased diffusion of cooperation between humans and robotics in manufacturing systems is one of the next things to implement within robotics. Since the computer power gets more and more powerful, the possibilities increase to achieve safer working environment, due to that all safety signals demands fast management of data. This could lead to a possibility to work closer and more direct with a robot, using the robot as a third hand. Within an EU FW7 funded project called LOCOMACHs (Low Cost Manufacturing and Assembly of Composite and Hybrid Structures) there are one study focusing on how to support a future higher TRL-leveled HMI cell (Human Machine Interaction) in an assembly task. The main objective in this paper is to present how different external safety systems could support the whole HMI assembly cell to work properly in an industrial context. The scenario for HMI, in this case, is that an operator enters into the robot working area with the aim to perform an assembly task that need two hands. There are different support systems that could be applied to this assembly application, but every one of these needs to coincide with official standards to be applied in an approved industrial HMI assembly cell. The different safety support systems that are used in this research are light barriers, physical barriers and three-position enabler. These safety support systems are tested in a demonstrator assembly cell using a mock-up wing part. The tests with the selected safety support systems in the physical demonstrator will be compared with a concept that uses cameras to achieve the same degree of safety.

  • Henriksson, Fredrik
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Product development in the Swedish Automotive industry: Can design tools be viewed as decision support systems?2015In: / [ed] Anthony SF Chiu, International Foundation for Production Research (IFPR) , 2015Conference paper (Other academic)
    Abstract [en]

    Design engineers working in the automotive industry have to take many design decisions, based on numerous diverse criteria. This results in a high workload of complex decisions. One way to reduce decision complexity and improve decisions could be to improve design tools. Decision support systems (DSSs) have been used in a managerial context to improve decisions. In this article, the authors assess whether design tools generally can be viewed as DSSs. A combination of literature review, surveys and qualitative interviews with seven design engineers was used to assess whether current design tools function as decision supports in product development. Although the specific design context needs to be considered, this study’s results suggest that design tools can generally function as DSSs. In future work, the adaptability to different problem solving patterns needs further in-depth research in the form of individual studies for specific tools in specific contexts.

  • Björnsson, Andreas
    et al.
    Linköpings universitet, Industriell Produktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Thuswaldner, Michael
    RUAG Space AB, Linköping, Sweden.
    Automated Composite Manufacturing Using Off-the-shelf Automation Equipment – A Case from the Space Industry2014In: Proceedings of the 16th European Conference on Composite Materials, 22nd-26th June 2014, Seville, Spain, 2014Conference paper (Refereed)
    Abstract [en]

    A novel approach to the manufacturing of composite products using off-the-shelf automation equipment is explored in this article. A manufacturing concept for a specific product is developed and analyzed, from a technical perspective, in order to find areas where off-the-shelf automation equipment can be used. The article also highlights areas where case-specific solutions need to be developed. In this particular case, off-the-shelf automation equipment can be used for most of the tasks that the manufacturing system needs to perform. The most challenging process is identified as the application of adhesive. The manufacturing concept described in the article shows that it is possible to build a system for the manufacturing of composite components using a high degree of off-the-shelf automation equipment.

  • Olsen, Rickard
    et al.
    Linköpings universitet, Industriell Produktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Assembly cell concept for human and robot in cooperation2013In: 22nd International Conference on Production Research: Challenges for sustainable operations, 2013Conference paper (Refereed)
    Abstract [en]

    Today’s aerospace assembly is a huge manual task according to strictly controlled instructions, where differentoperators are responsible for different areas. This harmonizes with the overall lean approach, but the assemblyis very time-consuming and some tasks are not ergonomically friendly, such as assembly tasks inside a wingbox. Here, it could be possible to increase automation with the aim to facilitate a shorter assembly time andergonomically improved workplace. This paper will present different assembly cell concepts utilizing differentsafety strategies to achieve human-robot cooperation in an aerospace industry assembly line. These conceptswill be discussed in relation to a case in the aerospace industry. The paper concludes with suggestions forthree conceptual human-robot cooperation layouts. These are based on previous research in the areas ofsafety and human-robot cooperation, in combination with observations from an aerospace assembly line.

  • Henriksson, Fredrik
    et al.
    Linköpings universitet, Maskinkonstruktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Towards Applying The Boothroyd, Dewhurst and Knight Methodology for Cost Estimation on Fibre Composite Manufacturing - A Theoretical Approach2014In: Proceedings of The 6th International Swedish Production Symposium 2014 / [ed] Johan Stahre, Björn Johansson, Mats Björkman, Gothenburg, 2014Conference paper (Refereed)
    Abstract [en]

    Increased usage of carbon fibre composite poses challenges for the automotive industry; one is to manage carbon fibre composites within the product development process. This paper combines knowledge in design engineering, material science and production technology, aiming to bridge these domains. The study indicates that mass production methods suitable for carbon fibre have several factors in common with traditional polymer production methods. Thus, it is possible that DfMA methods for traditional polymer production can be adjusted for carbon fibre composite production. The result is summarised in a table aiming to facilitate engineering decisions related to cost estimations for composite moulding.

  • Björnsson, Andreas
    et al.
    Linköpings universitet, Industriell Produktion.
    Lindbäck, Jan Erik
    Saab Aerostructures.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Automated Removal of Prepreg Backing Paper - A Sticky Problem2013In: Proceedings of the SAE 2013, Aerotech Congress and Exhibition, 24th-26th September 2013, Montreal,Canada, 2013Conference paper (Refereed)
    Abstract [en]

    Automated solutions for manufacturing composite products based on prepreg often imply Automatic Fiber Placement or Automatic Tape Laying. These systems are generally associated with huge investments. For certain manufacturing applications it is interesting to investigate alternatives to find simpler and less costly automation. One example of an automated system could be the use of a standard industrial robot to pick single prepreg plies from an automated cutting machine and stack them to form a plane laminate. This paper is based on a case illustrating a product from the aircraft manufacturing industry. The case will demonstrate a pick and place concept on a general level and illustrate challenges that must be solved. The challenge selected to be the main focus for this paper is an automated process for backing paper removal. A literature review of different gripping technologies reveals several interesting technologies, and the most promising are tested for backing paper removal. The tests show that an automated removal process can be designed by using standard vacuum grippers in combination with mechanical clamping grippers. In order to lift the backing paper with a vacuum gripper an initial separation between the backing paper and prepreg is needed. This separation is most easily mechanically induced by bending the material. The proposed solution for automatic backing paper removal can be integrated in a manufacturing cell for manufacturing of the studied product.

  • Björnsson, Andreas
    et al.
    Linköpings universitet, Industriell Produktion.
    Johansen, Kerstin
    Linköpings universitet, Maskinkonstruktion.
    Alexandersson, Dan
    GKN Aerospace Applied Composites AB.
    Three-Dimensional Ultrasonic Cutting of RTM-Preforms – A Part of a High Volume Production System2013In: Proceedings of the 19th International Conference on Composite Materials, 28th July - 2nd August 2013, Montreal, Canada: Composite Materials:The Great Advance / [ed] Suong Van Hoa & Pascal Hubert, Electronic Publishing BytePress.com , 2013, p. 8960-8969Conference paper (Refereed)
    Abstract [en]

    The process parameters for an automated, three-dimensional ultrasonic cutting process of RTM-preforms are examined in order to find how they affect the cutting quality.

  • Björnsson, Andreas
    et al.
    Linköpings universitet, Industriell Produktion.
    Johansen, Kerstin
    Linköpings universitet, Industriell Produktion.
    Composite Manufacturing: How Improvement Work Might Lead to Renewed Product Validation2012In: Proceedings of the 5th International Swedish Production Symposium / [ed] Mats Björkman, 2012, p. 505-513Conference paper (Refereed)
    Abstract [en]

    High-performance polymer composites are mainly used in applications where the benefits of high strength and low weight justify the high material and manufacturing costs. Many of these applications are found today in the aerospace, space and defense industries. Most of today’s commonly used manufacturing methods within this area are highly labor intensive. Furthermore, the quality requirements from the customers require a high level of process control. The purpose of this paper is to explore how changes that are introduced in order to improve productivity in a manufacturing system are managed, particularly with regard to who takes the decision to implement a change and how a change is validated. The study is based on qualitative interviews performed at several companies that manufacture composite components for the aerospace, space and defense sectors. The findings show that the responsibility for deciding to implement a change and the need for validating it are based on many diverse and interconnected factors. Therefore, it is difficult to construct guidelines for early assessment of the scope and cost of a proposed change. Hence each individual change request must be evaluated on its own. The study also shows that the validation process can be adapted to a level that is based on the type of change. In addition, it highlights that control over process parameters in manufacturing is essential.

  • Lindbäck, Jan Erik
    et al.
    Linköpings universitet, Industriell Produktion.
    Björnsson, Andreas
    Linköpings universitet, Industriell Produktion.
    Johansen, Kerstin
    Linköpings universitet, Industriell Produktion.
    New Automated Composite Manufacturing Process:: Is it possible to find a cost effective manufacturing method with the use of robotic equipment?2012In: Proceedings of the 5th International Swedish Production Symposium / [ed] Mats Björkman, 2012, p. 523-531Conference paper (Other academic)
    Abstract [en]

    The use of carbon composites has continuously increased in the commercial aircraft industry due to more challenging weight targets which is one way to handle the environmental requirements to lower the CO2 emissions. One aircraft structure component made at Saab Aerostructures is long and slender U-sections manufactured in carbon composites. The manufacturing is performed by manual layup of composite material. These U-sections are selected as an illustrative case in order to discuss possibilities for an automated manufacturing process with the aim to reduce cost. A literature review of different existing technologies have been performed and compared with the industrial front at Saab Aerostructures. Automated Tape Laying (ATL) and Automated Fibre Placement (AFP) are the two dominating automation methods, of today, for aircraft prepreg manufacturing. Both methods are heavy investments for small to medium size composite manufacturers. Analysis in the case has shown that the selected component cannot be automated with these two methods due to design constrains. The paper suggests that another automated method with a cutting machine in combination with an industrial robot with a vacuum gripper, is selected for further work. The proposed pick and place process is also assumed to reduce the material waste.

  • Nilsson, Sofia
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Karlsson, Stina
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Arbetsberedningar i byggproduktion: En utredning av samarbetet och kommunikationen mellan produktionsledning och yrkesarbetare2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The complexity of the construction industry and lack of repeated patterns complicates the efficiency of work execution. The working method of the construction site is a significant factor for the low productivity. It has been emerged that the occupational workers only use 40-60% of their full potential and the productivity could increase with 40% by increasing the involvement of them. Work preparation is a planning tool for the future work with aim to ensure a safer and more efficient achievement of the work execution. Inadequate communication, collaboration, planning and prioritization leads to a lack of use of work preparations in the industry.

    The aim of the study is to investigate the collaboration and communication between production management and occupational workers during the execution of work preparations and to present improvement suggestions for the execution of work preparations.

    Method: A qualitative case study on three different building projects has been carried out. The methodology was semi-structured interviews with production management, occupational workers and a person from the organization. A document analyse was performed to study what the organization is assisting with, as well as a literature study to gain knowledge from previous research.

    Findings: The identified deficiency was that work preparations rarely are produced together during meetings. The identified underlaying causes for this, is a lack of knowledge and basis, how written and jointly developed work preparations should be carried out. It is unclear how to implement it and too few tools. Due to the lack of knowledge and lack of time, the time required for a good work preparation is not set aside.

    Implications: A work preparation is a good tool to increase the productivity and safety during the execution of the work. To increase the priority of jointly developed work preparations, the production management and the occupational workers must understand the value of them and take time to sit down together and produce them. The organization needs to assist with an explanatory text document regarding work preparations and give clearer guidelines for how the production management should work with them. This would lead to a reduction of ignorance and uncertainties regarding the execution of work preparations.

    Limitations: The time of the study forms the basis of the limitations. The survey is limited to one company, where interviews have been done at three projects. Despite this limitation, the result is transferable to organizations of similar size with projects of similar scope. The work did not aim to change the purpose of the work preparation. 

  • Svensson, Josefin
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Nilsson, Rasmus
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    En jämförelse mellan prefabricerad och platsgjuten stomme:: Ur ett ekonomiskt och miljömässigt perspektiv2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of this study is to investigate differences between prefabricated and cast-in-situ structures from an environmental and an economic perspective. This to facilitate for different construction companies to choose a structure solution for future construction projects.

    Method: To achieve the goal and answer the questions that are included in this study, a case study has been conducted consisting of six projects. The methods for collecting the empirical data required to complete the study are literature study, document analysis, calculation and LCA. The calculation and life cycle analyses in the case study are done using the digital tools Bidcon and Anavitor.

    Findings: The study shows that the prefabricated structure costs 57–60,7% SEK / m2 BTA and 40,7 – 44,1% SEK / m3 concrete more than the cast-in-situ structure. The study also shows that the prefabricated structure releases 30-35% CO2e / m2 BTA and 17-22% CO2e / m3 concrete more than cast-in-situ structure.

    Implications: The conclusion in this report is to make it easier to choose the type of structure that is the most economical and has the least impact on the environment. Furthermore, the structures cost and environmental impact can be reduced by choosing a cast-in-situ over a prefabricated structure.

    Limitations: The study is limited to a case study based on six projects where three are prefab and three are cast-in-situ. The stage of the investigation is limited to the manufacturing and production stages. Only the load-bearing concrete structure consisting of walls, beams and pillars is examined. The foundation is overlooked in this study. Rebars and concrete are limited to general qualities and quantities for the different structures.

  • Ahlberg, Oskar
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Hultgren, Patrik
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    KL-träbyggnad utan heltäckande väderskydd - Ett mer fuktsäkert förfarande2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: The purpose of this study was to produce a template for how to design CLT buildings moisture-safer and to make recommendations for a moisture-safe working method. CLT is a new building material where there is a need for standardization to meet the requirements and recommendations that exist. Greater consideration needs to be given to moisture in order for people's hygiene and health not to be affected.

    Method: By collecting data using a case study of a multi-story house in CLT, material handling as well as design of framework and weather protection are shown. Design of framework appears through document analysis of design documents for three CLT house projects. Furthermore, the industry's approach and experience are disclosed through interviews of people with different subject-relevant knowledge.

    Findings: By, in the early design stage, prioritizing moisture safety for both construction- and use stages the risk of moisture-related problems is reduced. Furthermore, it should be continuously and jointly worked with moisture safety between disciplines in the project. Building components to take special account of and measures to do this are presented as well as recommendations for a more moisture-proof working method.

    Implications: The results of the study should be a complement to ByggaF, this is because the result specifically addresses CLT. Through implementation, the hope is that the result will reduce the risk of moisture-related problems in CLT buildings. Furthermore, higher requirements should be set on moisture safety in CLT construction, as the result of the current working method is unknown and the precautionary principle should be applied.

    Limitations: The study's result, in form of the design template that is generated, are mainly applicable to architects and designers as only the framework is investigated. The result is generally applicable for new-construction of multi-story buildings in CLT which are constructed in Sweden. Furthermore, measures to reduce the risk of moisture-related problems are being investigated and does not refer to people's influence by microbial growth.

  • Gustavsson, Victor
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Fabian, Hagenius
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    En kapacitetsjämförelse mellan stålförstärktaträbalkar, limträ och konstruktionsvirke2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Throughout the years numerous studies have been made that concludes thatcombining steel and wood results in improved strength. Under optimal conditions woodis an effective structural material, as it’s both cheap and durable. Steel on the other handunder right circumstances has considerably higher strength than wood. To combinewood and steel has over the last years gathered more attention. Studies shows thathybrid structures can lead to an economical advantage when building multiple storeybuildings, as it can replace or complete pure steel frames. The purpose of this paper isto increase the knowledge and understanding of how steel and wood cooperate and tofind out the advantages and disadvantages of using a flitched beam, as well as compareit’s strength to structural wood and glulam.Method: The paper comprises a quantitative study with two different kinds of datacollection methods, Literature studies and calculations. The literature study consists ofscientific papers and papers published by known institutions and will help the paperanswer the first issue. The calculations has been made with the help of Tekla Tedds,which follows the Eurocode design principles. Which will help the authors answer bothof the papers issues.Findings: The paper has found that the flitch beam has improved strength overstructural wood and glulam, but a significantly higher price. The flitch beam also has amuch higher self weight than structural wood and glulam. The flitch beam can also spanlonger than structural wood and glulam with the same applied load.Implications: The study have concluded that it’s hard to motivate the usage of flitchedbeams in floor designs as they have such high price. The flitch beam has higher strengththan both structural wood and glulam. Which makes the flitch beam a good option asload bearing beam that requires slim dimensions. The added strength of the flitch beamcan motivate the high price under the right circumstances.Limitations: The paper has limited the calculations to an enclosed environment andwill not take moisture or any other type of exposure in to account, As a dry indoorenvironment is optimal for both steel and wood. The calculations the paper uses arebased on Eurocode and all other forms of dimension principles will not be taken intoaccount.

  • Svensson, Daniel
    et al.
    Jönköping University, School of Engineering.
    Stark, Albin
    Jönköping University, School of Engineering.
    BIM360 BUILD SOM VERKTYG I VVS-PRODUKTION2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Purpose: Digitization of the construction industry has increased successively in recent years as new efficient BIM tools are launched in the market. New technology improves the use of outdated methods and improves quality assurance. BIM as a tool in the production stage is not as pronounced as in the other stages of a construction project. HVAC production, in general, is characterized by outdated methods and a renewal of this stage lies in the time when new efficient tools arrive. BIM360 BUILD is a tool that is designed to make building production more efficient. The aim of the report is to examine the tool BIM360 BUILD and then find out how this tool can increase the quality assurance for HVAC production and to develop implementation strategies.

    Method: The report is a qualitative study based on existing research within the subject. Methods for collected empirical data are semi-structured interviews conducted at Skanska Sweden AB and Assemblin Ventilation AB and a document analysis of BIM360 Build.

    Findings: Interviews at the host company Assemblin Ventilation AB provide a good insight into how a nationally large company in ventilation production works today. Interviews with the building giant Skanska Sweden AB gives an insight into how BIM360 BUILD is used after implementation. With collected empirical data, the issues can be analysed, and the BIM tool can streamline many problem areas in the company's production. For an implementation, clear guidelines and strategies are required from management. Implications: Issues, Checklist, Equipment and Task are functions of BIM360 Build which is an effective tool for increasing the quality assurance in HVAC production. Implementation strategies are required to ensure effective implementation:

    • If digital tools such as BIM360 Build are to be impacted, the proof is required that the software has worked before.

    • Some form of expert/support of the program should be available within the organization to make it easier for the older generation.

    • All staff who will use the BIM360 Build should be trained on the software to avoid a lingering learning and implementation process.

    • A BIM coordinator should be hired to facilitate coordination in their own organization and the coordination between other contractors.

    Limitations: The report is delimited to the four functions Issues, Checklist, Equipment and Task, which handle deviations, self-checks, materials and delegation of work elements in construction production. The report is limited to the ventilation industry, but the authors hope that the result can be generalized to other installation branches.

    Keywords: quality assurance, BIM360 Build, implementation, HVAC production, digitization.

  • Axell, Robert
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Hellqvist, Gustav
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Införandet av BIM i ett medelstort entreprenadföretag2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
  • Dahir, Ahmed
    et al.
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Collazos, Kenny
    Jönköping University, School of Engineering, JTH, Civil Engineeering and Lighting Science.
    Erfarenhetsåterföring: Erfarenheterna som bör återföras till projekteringsskedet av installationer2018Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis