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Sökning: hsv:(TEKNIK OCH TEKNOLOGIER) hsv:(Annan teknik)

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51.
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52.
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53.
  • Engström, Tomas, 1950, et al. (författare)
  • Monteringsanvisningar för naturligt grupperat arbete
  • 1988
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • Consumer report for the company in question (the Volvo Automobile Company) 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). These assembly work instructions were developed in one of the experimental workshops together with e.g. operators from the temporary learning and training workshop predating the Volvo Uddevalla plant and thereafter used for full-scale product purpose in the completed assembly plant. They were formalised by an information system used for such purposes. Thus, it is fair to state that these particular assembly work instructions were validated at an industrial scale (they actually represent years and years of work from ours' and others personnel' side). Specifically, this publication explains how the authors dealt with s the product architecture and product variation of the automotive products disassembled, which proved to necessary to be carried out in one of the experimental workshops (several complete automobiles and one heavy truck chassis were disassembled combined with having product data accessible in form of paper print-outs as well as by appropriate computer connections to the two Volvo companies etc.). That is, by using a special sort of “design analysis by means of axonometric hand-drawn illustrations” (see a conference contribution from 1992 that also is registered and available as o PDF-document at Chalmers Public Library (CPL) (a self-developed method found out together with a junior research competency from the School of Architecture at Chalmers).
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54.
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55.
  • Engström, Tomas, 1950, et al. (författare)
  • Principles of Work Structuring: A general and thus also more reasoning introduction
  • 2016
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • This completed article (or preprint not yet finished to due to one the author’s retirement) is based on a more extensive publication that also is registered a preprint at Chalmers Public library (CPL) (i.e. Engström and Jonsson 2015 “Development and application of (certain) Principles for work structuring” a book manuscript of more than 600 pages twelve chapters and a number of freestanding appendixes) (a work that have occupied the authors' minds for almost two decades) (see the just mentioned publication that also is registered in CPL). The selected book content has been scrutinised yet another time by a professional with regard to the English language. However, in this particular case (for this article) have just some of the content in the more extensive publication been refined further by mean of a selection of the matters that have been judged as of common interest as well as possible to delimit to approximatively some one hundred pages. This in order to create a more legible publication which could be grasped by more readers than what usual are the case. The matters treated calls for a mastering of a number of different contexts, as well as a certain sort of preunderstanding numerous details, which need to be explained to most readers.  This is actually an almost inevitable nature of the content in this completed article, even though (rather naturally) it is, of course, likely to blame such situation on the authors themselves. Please, remember that the research and development work dealt with cowers more than the four decades work of a cross and multi-disciplinary nature. That is a hard and intensive work of both practitioner and scientist from various scientific disciplines. Efforts which have been amalgamated by the common aim to develop alternatives to line assembly featuring e.g. parallel product flow assembly systems designs with small (parallel) autonomous workgroups.  These unorthodox (real-life) assembly systems featured (what was international unique solely in just two Swedish cases) advanced materials feeding techniques and extensively long work cycle times (some nine percent of the assembly workers were officially able to master completing whole automobiles single-handedly, i.e. all by themselves) (some more were able to do so, but they were not interested in the official test required).  As a sort of quintessence (final proof) of the sociotechnical research tradition in the Gothenburg area, were both (1) the nowadays defunct Volvo Uddevalla plant and (2) the closed down so-called assembly docks at the Volvo Tuve heavy truck chassis plant located in Gothenburg. These sociotechnical advanced, unorthodox (real-life) designs were in most respects the responsibility of one of the two authors and his colleagues.  Who for nine years disposed a number of experimental workshops located outside the Chalmers University of technology that were used for disassembly of automobiles and heavy truck chassis (including analyses of the content in various Volvo information systems, a content which were displayed on original and customised paper print out exposed out on elbow-high large tables besides the decomposed automotive products.  Such approach was unavoidably needed in order to e.g. construct the appropriate assembly work instruction for the extensively long work cycle time practised, and to thereby also revise product information harboured in the various information system. (The information systems available at this period of time proved in fact to be unable to support the very unfamiliar way to assemble the products in question. In fact, they were misleading thereby giving birth to a common misunderstanding of e.g. an immense number of product variants and a far too complex product perceived to be impossible to understand.) Finally, as said before the approximate hundred pages of the condensed more extensive publication have been rewritten by the two authors in connection to a successive proofreading by a professional (Lille-More Arnäs at the Linguae Company who is familiar with our linguistic usage and who has proof-read our publications for decades). The aim is to evolve the content further to thereby create a nucleus for our future work to finalize the more extensive publication. A comment: The most socio-technically advanced assembly system designs inventible requires reformed/reconfigured information systems dealing with product data (which in turn defines the product architecture and product variation). In fact, no any such (real-life) plant or assembly system would work as anticipated otherwise. And this publication is to some extent describing some selected aspects of this (very) dilemma (changing information systems are usually not something considered than designing assembly systems) (thus are totally new plants – and in turn totally new information systems – most often the real practical change to create something unorthodox) (however, which scientist will gain such opportunities, this is really rare, i.e. the projection of the Volvo Uddevalla plant was thus an exception and the trust given by the industry – by Volvo Uddevalla project organisation – was appreciated by some of the authors).
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56.
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57.
  • Engström, Tomas, 1950, et al. (författare)
  • Resursbehov i materialflödessystem med varierande integrationsnivåer. En studie av lastmoduler i integrerade transportsystem
  • 1988
  • Rapport (övrigt vetenskapligt/konstnärligt)abstract
    • This was a work carried out by the authors in parallel with the at this period of time ongoing work at the Department of Transportation and at the Volvo Automobile Company’s assembly plant in Uddevalla. In this case were modularization and synchronization of large parts in focus (as this was a sort of common denominator for our practical and theoretical development at the Department of Transportation). A comment: Publishing reports, especially consumer reports, was the praxis during this (early) period of time at Chalmers University of Technology, as well as probably at some other universities. This means that frequent and vast academic publication by means of e.g. conference papers and refereed contributions to scientific journals was almost unheard of. At least so for some of the applied science disciplines. However, today are the situation indeed very different (i.e. earlier was the publication in many respects focused on trying to satisfy the executive administrator the research foundation in question etc.).
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58.
  • Engström, Tomas, 1950, et al. (författare)
  • Some Findings from Learning of Assembly Work in Sweden
  • 1992
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • This publication is authored together with senior research competency within work organisation (professor Ulf Karlsson) (who rather inofficially functioned as a tutor for Engström during his PhD-studies, this was necessary since a full professor was lacking for several years at the Departement of Transportation) (in fact we both cooperated for a number of decades) (see some of the other publications registered Chalmer Public Library CPL).
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59.
  • Engström, Tomas, 1950 (författare)
  • Some Socio-Technological Aspects on Assembly System Designs in Japan and Sweden. A theoretical analysis
  • 2016
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • This completed and scrutinised article (or preprint not yet finished to due to the author’s retirement) is based on a more the thirty years cooperation with scientists located in Japan (featuring various Japanese financing, joint-venture seminars and other scientific initiatives like co-authoring, research tours in Japan and Sweden visiting various shop-floor operations, etc. But, the article is also bringing forward specific knowledge from the author’s earlier experiences regarding the development of alternatives to assembly line (initiated in 1975), as have been practised by one of his tutors gained before his doctor's degree at the Saab Scania plant in Trollhättan (initiated in 1970). This article has (for a decade) been completed and sent to our Japanese research colleagues as a chapter of a common book project (an anthology), which so far has not been fully completed due to several different reasons. This article is illuminating the (from the author’s perspective) recent development of so-called lean production (this approach was not existing during the 1970s and 1980s, at least not as the explicit theoretical frame of reference that is at hand nowadays). This with regard to the assembly work as were and partly still are at hand on the Japanese assembly lines. That is, considering the knowledge and experiences briefly hinted being at hand just above (the scientific context described), are the author in this article carrying out a sort of theoretical analyze of group work in the two countries. Thereby it becomes possible to compare, what may here be denoted as, a the most refined Japanese assembly lines (as was and is practiced by e.g. Toyota) with the most advanced unorthodox Swedish alternatives to assembly work (as was practiced earlier by the autonomous workgroups at Saab Scania in their body shop, and later on proved to also be successful in the nowadays defunct Volvo Uddevalla plant more than twenty-five years later). This means that serial and parallel product flows assembly system designs, with very short respectively extensively long work cycle times, are analyzed. Exploiting the sociotechnical theory, which was applied in e.g. the body shop case, on the Japanese counterpart proves that the two different assembly system designs had certain (important) characteristic (differences and resemblances). These characteristics, in turn, inflicts the efficiency, flexibility and work as well as work condition. Such comparisons are, according to the author’s insight, inventible necessary to grasp for any analyst, then he or she are discussing assembly work in any type of assembly system design (Note, not all plants are not alike. Furthermore, the theoretical frames of references have to be brought forward and also kept constant in order to conduct far more in-depth analyses).
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60.
  • Engström, Tomas, 1950, et al. (författare)
  • Successive Assembly System Design Based on disassembly of Products
  • 1997
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • This publication explains in one particular perspective how the authors dealt with s the product architecture and product variation of the automotive products disassembled (which by the way, proved to necessary to be carried out in one of the experimental workshops). Specifically, it treats our self-developed method to design (real-life) assembly systems and well as a particular way how to analyse information systems. We are reporting of how the product data harboured in this information system are practically prospected and also how the findings, which thereby gradually are emanating, are amalgamated (cross-referred) with completed and disassembled products. That is, a successive assembly system designs by means of disassembly of products (however, if more socio-technically advanced designs are sought for this calls for a reconfiguration of the information) (see some of the other publications registered in Chalmers Public Library CPL).
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