Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Target-oriented modularization - Addressing sustainability design goals in product modularization
    ( 2015)
    Halstenberg, F.A.
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    Buchert, T.
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    Bonvoisin, J.
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    Lindow, K.
    ;
    Stark, R.
    Through modularization, a large range of sustainability goals can be addressed in design, e.g. environmentally friendly end-of-life or improved MRO (maintenance, repair and overhaul) processes. The development of methods for product modularization raised increasing interest in recent years. However, published methods for product modularization still lack of flexibility and standardization. Numerous methods have been developed that are defined for one or a given list of design goals. As a result, it is still difficult for engineers to find and apply the right method for a defined set of design goals. In this paper, the field of modular product design methods has been analyzed with the aim to develop a Target-oriented Modularization Method that allows defining modular product structure according to user-defined design goals. The introduced method is demonstrated on the example of a Garrett GT2860R turbocharger.
  • Publication
    Design and manufacturing of a sustainable pedelec
    ( 2015)
    Buchert, T.
    ;
    Steingrimsson, J.G.
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    Neugebauer, S.
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    Nguyen, T.D.
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    Galeitzke, M.
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    Oertwig, N.
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    Seidel, J.
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    McFarland, R.
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    Lindow, K.
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    Hayka, H.
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    Stark, R.
    To facilitate the transition towards sustainable manufacturing, current practices and mechanisms for value creation need to be reconsidered along the whole product lifecycle. However, academic research on sustainability is still bound to narrow fields of applications. In this study, a multi-disciplinary research project is presented that focuses on the development of a sustainable pedal electric cycle (Pedelec) from a first idea to a ready-to-use prototype. The results of the project show how different scientific approaches for bottom-up improvement can be applied together in a concrete case. A holistic view on the product lifecycle proved as a meaningful framework for that purpose.
  • Publication
    Multi-criteria decision making as a tool for sustainable product development: Benefits and obstacles
    ( 2015)
    Buchert, T.
    ;
    Neugebauer, S.
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    Schenker, S.
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    Lindow, K.
    ;
    Stark, R.
    For developing sustainable products design engineers need to foresee diverse interrelations between a product's characteristics and its economic, social and environmental impacts. In order to support this complex task a wide range of design methods has been developed. Retrospective analytical methods like Life Cycle Sustainability Assessment (LCSA) require a large amount of information and are thus utilized when important design decisions are already made. Prospective methods are rather generic (e.g. checklists) and too broad to be helpful in concrete design decisions. In this paper, the integration of discrete decision trees with LCSA is proposed for shifting multi-criterial quantitative analysis to earlier development. On the basis of sustainability indicators Pareto-optimal decision-paths for given material- and process alternatives along the product lifecycle can be compared up-front. Resulting benefits and obstacles are illustrated by evaluating value creation options of a bicycle frame.