How do C&C²-models improve the understanding of system behaviour in failure analysis?

DS 91: Proceedings of NordDesign 2018, Linköping, Sweden, 14th - 17th August 2018

Year: 2018
Editor: Ekströmer, Philip; Schütte, Simon and Ölvander, Johan
Author: Gladysz, Bartosz; Megner, Tino; Mayer, Marcel; Albers, Albert
Series: NordDESIGN
Institution: Karlsruhe Institute of Technology, Nanyang Technological University
ISBN: 978-91-7685-185-2


In previous publications a new approach has been introduced based on the Contact and Channel Approach (C&C²-A),which integrates embodiment design with cause and effect relations in one model. Previous results showed apart from an increased efficiency and comprehensibility a more peripheral and holistic analysis scope compared to isolated models for the embodiment design (CAD) and the cause and effect relations(fault trees). The latter has enabled the user not only to identify further failure causes, but also to determine more complex failure mechanisms that lead to hard-to-find failure causes. However, in the previous publications the underlying enablers for an improved understanding of system behaviour in failure analysis using a C&C²-based approach could not be analysed in detail. For this reason, a further study is presented in this paper. The resulting observational study was conducted with 22 participants comparing the integrated C&C²-models in a real-world failure analysis with isolated models for embodiment design (CAD) and cause and effect relations (FTA, SysML-ibd)

Keywords: Model-based failure analysis, Observational study, Contact and Channel Approach (C&C²-A), Internal block diagrams(ibd), Fault tree Analysis (FTA)


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