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  • 1.
    Fermér, Arvid
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Sliwa, Petrus
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Utveckling av tillbehör till batteriprodukter2019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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  • 2.
    Persson, Kasper
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    User-centered design of an attachable battery pack for arborists2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Globe Group, a company under the brand Greenworks Tools, is one of the industry leaders in battery-powered outdoor equipment, developing tools that deliver the performance of a gasoline-powered tool without the hassle and emissions associated with it. Gasoline-powered tools are still prevalent in the field of arboriculture where arborists work daily with chainsaws while performing tree felling and pruning.

    Now a new type of chainsaw is in development by Globe Group which is characterized by its lightweight and large battery capacity, which brings extraordinary battery life. This feature is possible by redesigning the chainsaw to support an external battery, which is housed in a separate battery pack instead of placing the battery directly inside the tool. The aim of the project is to adapt and design the battery pack for arborists by using a user-centered design approach with focus on ergonomics. This is done by having a close cooperation with the arborists during the whole project, from pre-study to final concept evaluation, to explore and fulfill the needs of the user. By using a wide range of research and design methods, a final concept is developed to reach the needs of the user and company.

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  • 3.
    Popovic, Djordje
    et al.
    Jönköping University, School of Engineering, JTH, Supply Chain and Operations Management. Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Thajudeen, Shamnath
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Vestin, Alexander
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Smart manufacturing support to product platforms in industrialized house building2019Conference paper (Refereed)
    Abstract [en]

    Swedish house building companies currently face many challenges in terms of fluctuating market demand, need for flexible product offering, non-uniform governmental regulations, high costs, and long lead times. These challenges affect both internal and external efficiency of companies. Product platforms have been used for more than a decade in this industry to improve both internal and external efficiency. However, the industry is still criticized for its inefficient and costly process. Smart manufacturing has emerged as means to improve the efficiency of internal processes and the question is if and how smart manufacturing can complement and support product platforms in industrialized house building. The aim of this study is to explore the potential of smart manufacturing to complement and support product platforms in theory and practice in the context of industrialized house building. A literature review and a multiple case study were chosen to fulfill the study objective. In total fourteen semi-structured interviews were conducted in two timber house building companies. The data was analyzed within and across cases using four platform assets for categorization: components, processes, knowledge and relationships. The results show that the smart manufacturing technologies are in both theory and practice mainly supporting the process platform asset through developing vertical and horizontal IT systems integration, definition and digitalization of flexible building systems, and transferring explicit drafting and engineering knowledge into parametric modelling tools.

  • 4.
    Singh, Shivansh
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Knowledge Base Engineering Design Methodology and Integration with PLM System Part Factory2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Companies are trying to decrease product expenses while customizing product according to customers requirements. So to satisfy the customers’ requirements, companies must adapt their business to mass customisation.  Mass customization final product goes through all flexible company production technology process, which can lead to being expensive and time-consuming and because of this, a product configuration system is developed to reduce product cost and reduce time. The primary focus of this thesis is to develop a KBE prototype using constraint-based techniques of product configurations. For developing KBE implementation of  UML/OCL, XML, Backtracking search is used. Then prototype expert configurator is developed using OCL constraints.

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  • 5.
    Sivasubramanian, Sriramkumar
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Optimization and simulation of formed suction cup to position aerospace CFRP parts during milling.2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
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  • 6.
    Swaroop, Rajagopal
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Concept Development of an Inflatable Roof Box using Drop-Stitch Fabric2019Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The purpose of this project is to design a roof box for Urban users living in modern houses. Usually, the compactness of these houses does not allow the luxury of owning traditional hard-shelled roof boxes. Taking inspiration from the inflatable technology used in stand-up paddleboards and kayaks, this project explores the possibility of implementing the drop-stitch material for fabricating an inflatable roof box.

    The drop stitch fabric was first developed in the early 1950s by Goodyear for their inflatable aeroplanes. Although most of its early applications were classified by the military, the drop stitch material is presently being implemented in various products such as Kayak, AirTrack, Inflatable Cooler etc.

    The scope of this thesis remains within concept design, which is an early phase of product development. Following the three stages, background research, concept generation, and concept evaluation, the project implements various conventional and intuitive research methods, such as literature review, brainstorming, prototyping, testing etc.

    The project was a collaboration between Industrial Design and Product Development, which made it possible to view the project from different perspectives. It explores various design aspects, such as shape, form, curvatures, ergonomics etc. and engineering aspects, such as strength, stiffness and structural integrity.

  • 7.
    Thajudeen, Shamnath
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Supporting the design phase of industrialised house building using a product platform approach: A case study of a tmber based post and beam building system2020Licentiate thesis, comprehensive summary (Other academic)
    Abstract [en]

    In recent years, industrialised house building has gained shares on the Swedish house building market. The market demands for industrialised house building are exceeding the available supply of housing and experiencing a substantial increase in the housing production costs. For industrialised house building, the design has been identified as a critical phase with the systematization of the design a necessary part of industrialisation. Therefore, companies strive towards the inclusion of standardization and controlled processes in the design phase. Product platforms have proved to be related to the standardization of processes and products. Introducing a product platform approach in the design phase of house building could be a way to improve the design and ensure value creation in entire processes. Thus, the aim of this research is to outline means to support and improve the design phase of industrialised house building by using a product platform approach.

    A Swedish multi-storey house building company that uses glulam post and beam building system with a focus on platform development was used as the single case study in this research. The company intends to achieve increased efficiency by moving towards industrialized approaches. Empirical data were mainly gathered from interviews, observations, workshops, and document analysis. The findings present the existing challenges in the housing building industry and outlines twenty critical success factors that need to be considered in the design phase. Also, the result outlines support methods and tools that can be used for the improvement of the design phase when applying a product platform approach. Moreover, a flexible product platform can be developed with the support of parametric modelling and used to design building components having an engineer-to-order characteristic. Finally, the results show that a building system can be considered as part of a product platform in light of the necessity of an adequate support in the design process to maintain a sustainable platform. Thus, the contribution includes the addition of knowledge to platform theory in general and its application on the design phase of industrialised house building.

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  • 8.
    Thajudeen, Shamnath
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Lennartsson, Martin
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Elgh, Fredrik
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Challenges and critical success factors for the design phase in Swedish industrialised house building2019In: Proceedings of the 35th Annual ARCOM Conference, 2-4 September 2019, Leeds, UK / [ed] Gorse & C. J. Neilson, Association of Researchers in Construction Management (ARCOM), 2019, p. 34-43Conference paper (Refereed)
    Abstract [en]

    The house building industry has been characterised as less productive compared to the manufacturing industry with numerous and challenging activities including a complex integration process. For the last 20 years, industrialised house building has gained increased research and industry attention and is identified as a potential way to improve the overall house building productivity. In the overall process, the design phase has been identified as the bottleneck with several disciplines which have to be coordinated to generate a design solution that meets various customer and market requirements. Many aspects of a building's performance depend on the decisions taken in the early design process. These decisions can have a substantial impact on the overall design, lead time, cost and quality of the final product. However, there are many other important factors which need to be considered by designers during the design phase. Less attention has been paid to the identification of these factors within the design phase of the industrialised house building. Thus, the main purpose of this paper is to identify challenges and outline the critical success factors to be considered in the design phase of the Swedish industrialised house building. Qualitative research was conducted in combination with literature reviews and multiple case studies linking three Swedish house building companies. Empirical data were gathered from 20 semi-structured interviews. The study identified common challenges in the house building industry and 20 critical factors that should be addressed in the design phase from both literature and practitioners view. The result shows that fixed production is crucial for identifying the critical factors rather than a building system. Also, many challenges identified from this study could be managed by developing a platform-based approach with support tools and methods for critical factors in the design phase.

  • 9.
    Thajudeen, Shamnath
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Lennartsson, Martin
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Elgh, Fredrik
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Expanding the building system into a product platform for improved design and manufacture - A case study in Industrialised house building2020Manuscript (preprint) (Other academic)
  • 10.
    Thajudeen, Shamnath
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Lennartsson, Martin
    Jönköping University, School of Engineering, JTH, Civil Engineering and Lighting Science.
    Elgh, Fredrik
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design.
    Persson, P.-J.
    Parametric modelling of steel connectors in a glulam-based post and beam building system - Towards a flexible product platform approach2020Manuscript (preprint) (Other academic)
  • 11.
    Ullal, Pratheek
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Development of Fluidity Measurement Technique and Automation of Measurement Station: Developing the existing Fluidity Measurement Station by automating the operation and measuring the fluidity digitally with MATLAB Image Processing Tools.2019Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    Bryne AB has invented a device called Loop for measuring the fluidity of molten metal. Loop is made up of refractory fiber material and has a dimension of 196 sq.mm within which there is an engraved spiral shaped runway for the molten metal to flow. The distance traveled by the molten metal in the spiral determines its fluidity and is measured visually by the operator with the help of the spiral scale printed on the Loop. A workstation is used to support the Loop for an easier and better working environment. At present, the entire operation of fluidity measurement is done manually. The aim of the thesis is to develop an automatic workstation for the fluidity measurement and find a technique to measure the fluidity without human visual aid. Further, an attempt has been made to find a way to store and retrieve the measured values for future use.

     

    The automation of the workstation is done with the help of Arduino Uno circuit board for electrical connections and Arduino IDE for programming the circuit. MATLAB image processing tool is used for measuring the fluidity digitally.

     

    The prototype of the automated workstation is built and showcases the ability to reduce the time and operational errors. The automation of the unplugging operation saves up to 7 seconds.  The digital measuring of the fluidity with FLIR thermal camera and MATLAB image processing tool does not show significant improvement in accuracy in measurement, but it reduces the dependency on the expertise of the operator. There is an error of 12.7% from the actual fluidity value.

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  • 12.
    Westfeldt, Carl
    et al.
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Lundin, Henrik
    Jönköping University, School of Engineering, JTH, Industrial Product Development, Production and Design, JTH, Product design and development (PDD).
    Construction of Chassis Fairing System: Development of a novel design to reduce fuel consumption on heavy vehicles2019Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Abstract

    This thesis work describes the process of developing an original design for a retractable fairing mount to a semi-truck. The thesis work is conducted for Volvo Group Trucks Technology. The thesis is the final course on the mechanical engineering program on Jönköping University, although the thesis itself is carried out at North Carolina Agricultural and Technical State University in Greensboro, USA.

     

    The aim of the thesis work is to develop a concept for a retractable fairing mount for the rear wheels of a semi-truck. With the emphasis to reduce the aerodynamic drag and ultimately obtain better fuel efficiency.

     

    The work started with breaking down the requirements of the product and sorting the functions it would perform. Based on these functions and the data that was supplied an appropriate method of concept generation could be chosen.

     

    Concept generation resulted in a number of concepts that were weighted, ranked and evaluated. This evaluation led to one concept emerging as more appropriate. The concept design and materials selection is verified with structural analysis and with Finite Element Method often written as FEM.

     

    The project resulted in a conceptual proposal for the problem at hand. It is a complete solution including structural design and mounting to the truck. Considering the restricted area that is available to work with around the wheels, the concept is functioning.

1 - 12 of 12
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