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- Ellegård, Kajsa, 1951, et al.
(författare)
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Reflective Production in the Final Assembly of Motor Vehicles - An Emerging Swedish Challenge
- 1992
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Ingår i: International Journal of Operations and Production Management. - 1758-6593 .- 0144-3577. ; 12:7/8, s. 117-133
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Tidskriftsartikel (refereegranskat)abstract
- Presents some theoretical principles and empirical evidence relating to the new Swedish production systems for final assembly of motor vehicles. Contends that in these production systems it is possible simultaneously to enhance efficiency and quality of working life. Briefly sketches three production forms as they apply to the final assembly of automobiles and discusses the societal environments in which these different forms of production have evolved. It focuses on Volvo Uddevalla plant as one of the main examples so far of a reflective production system for final assembly of automobiles. Amplifies the analysis of different production flow patterns for final assembly and in particular addresses the issue of semi‐parallel mechanistic production flow and parallel organic production flow as alternatives to serial flow on a conventional line assembly. A comment: This publication is authored together with e.g. senior research competencies (1) within vocational learning and training as well as (2) within time-geography with whom Engström have had long time cooperation procedures. But also personal at our department/research group (Mats Johansson) well as our knowledgeable contact person (Bertil Johansson) within Volvo contributed (he has really helped us out for decades and was responsible for the continuous contacts with Volvo in most any matter).
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- Persson, Bertil, et al.
(författare)
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Prefabrication with HSC
- 1999
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Ingår i: Concrete International. - 0162-4075. ; 21:9, s. 58-62
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- This article outlines a numerical study on the benefit of using high-performance and high-strength concrete (HPC/HSC) for fabrication of concrete elements. A comparison is made between the cost of existing beams with normal strength concrete and optimized beams made of HPC/HSC. Background is given concerning the most essential properties of HPC/HSC such as strength, creep, shrinkage, carbonation, and fire resistance. Results indicate that it is necessary to improve the structural configuration of the beams to fit with 16 mm strand to achieve an economical solution. The direct cost reduction after optimization of the section was 15 percent. Other advantages such as approximately 35 percent reduction of the required amount of carbon dioxide to produce cement for the same type of beam, lower cost of transport, and a decreased dead weight of the structure compared with the use of normal strength concrete motivates the use of HPC/HSC for these types of structures.
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- Persson, Bertil, et al.
(författare)
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The Benefit of Using High-Performance Concrete for Prefabrication.
- 1998
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Ingår i: Proceedings of the Fourth CANMET/ACI/JCI International Conference on Recent Advanced in Concrete Technology. Tokushima.. ; , s. 433-445
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Konferensbidrag (refereegranskat)abstract
- This article outlines a numerical study on the benefit of using High-Performance/Strength Concrete for fabrication of concrete elements. For this purpose a comparison is done between the cost of existing beams with normal strength concrete and optimized beams made of High-Performance/Strength Concrete. A background is given concerning the most essential properties of High-Performance/Strength Concrete such as strength, creep, shrinkage, carbonation and fire resistance. The results indicate that it is necessary to improve the structural configuration of the beams to fit with 16-mm strand in order to achieve an economical outfit. The direct cost reduction after optimization of the section was 15%. Also other advantages such as about 35% reduction of the required amount of carbon dioxide in order to produce cement for the same type of beam, lower cost of transport, and a decreased dead weight of the structure compared with the use of normal strength concrete motivates High-Performance/Strength Concrete for these types of structures.
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- Ahlsén, Bertil, et al.
(författare)
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Ombyggnad Torslanda
- 1990
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Consumer report for the company in question (the Volvo Automobile Company and the Volvo Torslanda plant) which is financed by the company and partly also by a research foundation. It is a matter of a work that in this particular case were carried out during nine years in a number of experimental workshops located outside the Chalmers University of Technology. These workshops were financed by the Volvo Automobile and Truck companies. This achievement, as the final contribution to the Swedish automotive industry after having already treated this research field/problem area for more than two decades before this particular period if time (involving several junior and senior research competencies, as well as industrial and governmental foundings).
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