Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Assistenzsystem für die Entwicklung nachhaltiger Produkte
    (Fraunhofer Verlag, 2020)
    Buchert, Tom
    Entscheidungen in der Produktentwicklung definieren die Gestalt und Wirkungsweise eines Produktes und legen damit dessen Lebensweg sowie auftretende Nachhaltigkeitswirkungen fest. IT-basierte Assistenzsysteme bieten das Potenzial, Entwickler bei ihren Entscheidungen zu unterstützen, indem zusätzliche Informationen mit Nachhaltigkeitsbezug für den Entscheidungsträger aufbereitet werden. In dieser Dissertationsarbeit erfolgt daher eine systematische Analyse relevanter Entscheidungssituationen sowie hierfür benötigter Informationen. Kern der vorgeschlagenen Lösung sind modulare ""Building-Blocks"", welche es Unternehmen erlauben, selbstständig Assistenzsysteme für die Entwicklung nachhaltiger Produkte aufzubauen. Dieses flexible Konzept ermöglicht eine individuelle Anpassung des Systems an die Charakteristika der Organisation (Prozesse, Methoden, IT-Welt etc.). Um dieses Prinzip zu demonstrieren, werden in der Arbeit drei Umsetzungen eines Assistenzsystems für wesentliche Entscheidungssituationen bei der Entwicklung nachhaltiger Produkte vorgestellt. Diese reichen von übergreifenden Systembetrachtungen über Konzeptentscheidungen auf Produktebene bis hin zur Optimierung einzelner Bauteile.
  • Publication
    Increasing resource efficiency with an engineering decision support system for comparison of product design variants
    ( 2019)
    Buchert, Tom
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    Ko, Nathanael
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    Graf, Roberta orcid-logo
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    Vollmer, Thomas
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    Alkhayat, Moritz
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    Brandenburg, Elisabeth
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    Stark, Rainer
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    Klocke, Fritz
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    Leistner, Philip
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    Schleifenbaum, Johannes Henrich
    The development of sustainable and resource-efficient products requires consideration of multiple design targets concerning the whole product life cycle. Taking these factors into account leads to complex decision situations with conflicting targets and trade-offs. To support design engineers in these situations an Engineering Decision Support System (EDSS) has been developed. In this article, the overall concept of the EDSS is presented. Furthermore, one function of the EDSS to assist a systematic comparison of product variants is introduced in detail. It is based on combining an existing PLM solutions (in particular Siemens Teamcenter 11/Siemens NX9) and software for Life Cycle Assessment (GaBi 7). Beyond a proof of concept for information exchange between both systems a methodology is presented which enables design engineers to systematically assess and select multiple product variants based on their resource utilization. The approach is complemented with a comprehensive case study for different design options of a core slide. In the scope of this study, variations of geometry (solid vs. hollow design), materials (hot-working steel vs. nickel-based superalloy) and manufacturing processes (laser metal deposition vs. milling) were considered. Furthermore, a usability study of the decision support tool is shown.
  • Publication
    Target-driven selection and scheduling of methods for sustainable product development
    ( 2017)
    Buchert, Tom
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    Halstenberg, Friedrich A.
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    Bonvoisin, Jeremy
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    Lindow, Kai
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    Stark, Rainer
    A large number of methods have been developed in order to systematically consider sustainability as a design criterion in the product development process. However, further support is required to help product development teams to assess the applicability of the existing methods in the specific design contexts. In order to address this problem, the Design Decision Support Assistant (DDSA)-an IT-based assistance system-has been developed to support product development teams in the selection, scheduling, and application of sustainable product design methods in the product development process. The backbone of the assistant is a method repository comprising 29 methods for sustainable product development as well as a method taxonomy to enable the selection and scheduling of suitable methods for achieving sustainability-related design targets. This article introduces the concept of the DDSA, details its practical prototypical implementation, and illustrates its application in a case study.
  • Publication
    Ressourcenoptimiertes Produktdesign
    ( 2017)
    Graf, Roberta orcid-logo
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    Ko, Nathanael
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    Buchert, Tom
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    Rothenburg, Uwe
    Die Berücksichtigung von Effizienz beginnt bereits in der Produktentwicklung. Hier werden die Weichen für den Ressourcenverbrauch eines Produkts in allen nachfolgenden Lebenszylusphasen gestellt. Zur verbesserten Nutzung dieses Potenzials wurde eine Methodik entwickelt, die den Ingenieur dazu befähigt, bereits in den frühen Phasen der Produktentstehung den verfügbaren Lösungsraum zu identifizieren und daraus Maßnahmen für die weitere Entwicklung abzuleiten.
  • Publication
    Resource optimized product design - assessment of a product's life cycle resource efficiency by combining LCA and PLM in the product development
    ( 2016)
    Ko, Nathanael
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    Graf, Roberta orcid-logo
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    Buchert, Tom
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    Kim, Marcus
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    Wehner, Daniel orcid-logo
    Decisions in the product design phase have a significant influence on the resource demand of a product over its entire life cycle. However, relationships between decisions made in the design phase and the life cycle are difficult to evaluate and express. Hence, resource efficiency is typically only assessed after the product has already been designed and gone into production. If the impacts of decisions made in the design phase are neglected a considerable potential for saving resources is ignored. The aim of the presented work is to make use of this potential. Therefore the determination of the connections between design decisions and resource demand in the manufacturing, use and end of life phase is essential. Mapping these connections and the use of LCA methods allows for the expression of the overall resource demand as a function of the product's design. With this information at hand a design engineer is able to evaluate a design early enough i.e. before going into production. The provided approach results in an integration of an LCA tool into the engineering workplace consisting of a PLM and a CAD system. It aims for significantly more resource efficient products by partially automated creation and evaluation of alternative product designs. Therefore, design engineers are enabled to develop products with an enhanced resource efficiency over the entire product lifecycle.
  • Publication
    Information management platform for the application of sustainable product development methods
    ( 2016)
    Pförtner, Anne
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    Buchert, Tom
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    Lindow, Kai
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    Stark, Rainer
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    Hayka, Haygazun
    A multitude of information is required to address sustainability aspects in product design decisions. However, information required for applying methods in the field of sustainable product development often overlaps. Moreover, specific improvement measures can primarily be identified if method results can be traced back to data origin. This paper presents a concept and implementation of an information platform which is integrated into a PLM system and integrates an ontology based knowledge model and a semantic wiki. The information platform shall avoid double work, improve documentation of information and assist in understanding the data basis of method results. This paper discusses requirements and solution elements and presents findings from applying the methods Lifecycle Design Strategies (LiDS) Wheel and the Product Sustainability Index.
  • Publication
    Problem-based teaching in mechanical engineering design - a collaborative course model
    ( 2012)
    Hanayli, Mehmet M.
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    Buchert, Tom
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    Kaluza, Andrea
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    Lindow, Kai
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    Stark, Rainer