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Production of customized and standardized single family timber houses – A comparative study on levels of automation
Jönköping University, School of Engineering, JTH. Research area Industrial Production. Jönköping University. (Department of Industrial Engineering and Management)
Chalmers University of Technology.
Chalmers University of Technology.
2016 (English)Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Industrialization of house building implies a higher pre-fabrication level where companies have moved from the traditional on-site to the off-site assembly. Currently in Sweden there is an increasing demand for all types of households and the companies from this construction sector lack the capacity to respond to these needs. Increasing the productivity through automation is one of the ways to address this problem. Nevertheless, introducing automation solutions without the structured analysis of the production system can lead to sub-optimization. In the analysis of processes, obtaining the current state of levels of automation has proven to be a useful step towards the identification of possible automation solutions. Producers of single family timber houses often have different business strategies, therefore their processes can differ with respect to how standardized the products are. The single case study was used as a research method and has the following research question: How different are the processes and current levels of physical and cognitive automation within the off-site assembly of exterior walls in ETO and SV projects? Both assembly lines currently have rather low physical and cognitive automation levels. However, there are tasks with higher levels of physical and cognitive automation in the ETO assembly line.

Place, publisher, year, edition, pages
2016.
Keywords [en]
levels of automation, industrialized timber house building, exterior wall, off-site assembly, modify-to-order, select-a-variant
National Category
Engineering and Technology Production Engineering, Human Work Science and Ergonomics
Identifiers
URN: urn:nbn:se:hj:diva-32239OAI: oai:DiVA.org:hj-32239DiVA, id: diva2:1044647
Conference
7th Swedish Production Symposium
Funder
Knowledge FoundationAvailable from: 2016-11-04 Created: 2016-11-04 Last updated: 2018-01-19
In thesis
1. Off-site manufacturing systems development in timber house building: Towards mass customization-oriented manufacturing
Open this publication in new window or tab >>Off-site manufacturing systems development in timber house building: Towards mass customization-oriented manufacturing
2018 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The need for housing in Sweden has been showing a constant increase over the past couple of years. However, this situation might change in 2018 since there are indications that the increase in demand will reach its peak. On the other hand, the use of timber as a load bearing structure has become more popular in the multi-family house building sector. It is competing with concrete and steel frames, and its market share might even reach 50% by the year of 2025. Adding the involvement of customers in house design decisions and a high level of customization, the conclusion is that timber house building must continue the development towards mass customization. There is a lack of knowledge on how mass customization is developed and implemented regarding off-site manufacturing systems. In this thesis, a contribution is made to manufacturing system development in timber house building by proposing a novel approach to aligning off-site manufacturing systems to the requirements of production strategy, market needs, product design, and manufacturing processes. The proposed conceptual framework is a synthesis of the knowledge gained from three empirical studies and different methods found in theories of changeable manufacturing systems, mass customization, and manufacturing system development. The research purpose addressed by the presented work, is to increase the knowledge on how the development potential of off-site manufacturing systems can be identified in mass customization-oriented timber house building. Case study research was applied to gather the empirical data. The data collection and analysis methods used in the empirical studies can be useful when discussing the potential improvements. However, these data are not comprehensive enough in terms of presenting a holistic view of off-site manufacturing and consideration of the market as well as variation in product and processes. Therefore, a comprehensive set of requirements is proposed in the conceptual framework together with a step by step description of how the development potential of off-site manufacturing systems can be identified.

Abstract [sv]

Behovet av bostäder i Sverige har ständigt ökat under de senaste åren. Denna situation kan dock förändras 2018, eftersom det finns tecken på att ökningen av efterfrågan kommer att nå sin topp. Å andra sidan har användningen av trä som lastbärande konstruktion blivit mer populär i flerfamiljshusbyggnaden. Det konkurrerar med betong- och stålstomme och dess marknadsandel kan till och med nå 50% år 2025. Att lägga kundernas medverkan i husdesignbeslut och en hög anpassningsnivå är slutsatsen att trähusbyggnaden måste fortsätta utveckling mot mass customization (MC). Det finns brist på kunskap om hur MC utvecklas och implementeras när det gäller off-site tillverkningssystem. I denna avhandling görs ett bidrag till tillverkningssystemutveckling i trähusbyggnad genom att föreslå ett nytt tillvägagångssätt för att anpassa tillverkningssystem till de olika kraven av produktionsstrategier, marknaden, produktdesign och tillverkningsprocesser. Den föreslagna konceptuella ramen är en sammansättning av kunskapen från tre empiriska studier och olika metoder som finns i teorier om förändringsbara tillverkningssystem, MC och tillverkningssystemutveckling. Forskningssyftet med det presenterade arbetet är att öka kunskapen om hur utvecklingspotentialen av off-site tillverkningssystem utanför anläggningen kan identifieras i MC-orienterad trähusbyggnad. Fallstudier användes för att samla empiriska data. Datainsamlings- och analysmetoderna som används i de empiriska studierna kan vara användbara när man diskuterar potentiella förbättringar. Men denna information är inte tillräckligt komplett när det gäller att presentera enhelhetsbild av off-site tillverkning, utan en bedömning av marknaden samt kunskap om variationer i produkt- och processer behövs även. Därför presenteras det konceptuella ramverket, inklusive en kravlista samt en stegvis beskrivning av hur utvecklingspotentialen för off-site tillverkningssystem kan identifieras.

Place, publisher, year, edition, pages
Jönköping: Jönköping University, School of Engineering, 2018. p. 77
Series
JTH Dissertation Series ; 035
National Category
Production Engineering, Human Work Science and Ergonomics Wood Science
Identifiers
urn:nbn:se:hj:diva-38611 (URN)978-91-87289-36-1 (ISBN)
Supervisors
Available from: 2018-01-19 Created: 2018-01-19 Last updated: 2018-01-23Bibliographically approved

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