Computational optimisation of robust sheet forming processes

Antonius H. van den Boogaard, M. Tisza (Editor), M.H.A. Bonte, R. van Ravenswaaij

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Mathematical optimisation consists of the modelling and solving of optimisation problems. Although both the modelling and the solving are essential for successfully optimising metal forming problems, much of the research published until now has focussed on the solving part, i.e. the development of a specific optimisation algorithm and its application to a specific optimisation problem for a specific metal forming process. We propose a generally applicable optimisation strategy which makes use of FEM simulations of metal forming processes. It consists of a methodology for modelling optimisation problems related to metal forming. Subsequently, screening is applied to reduce the size of the optimisation problem by selecting only the most important design variables. Finally, the reduced optimisation problem is solved by an efficient optimisation algorithm. However, the above strategy is deterministic, which implies that the robustness of the optimum solution is not taken into account. Robustness is a major item in the metal forming industry, hence the deterministic strategy is extended in order to include noise variables (e.g. material variation) in optimisation. This yields a robust optimisation strategy that enables to optimise to a robust solution of the problem, which contributes significantly to the industrial demand to design robust metal forming processes. Just as the deterministic optimisation strategy, it consists of a modelling, screening and solving stage. The deterministic and robust optimisation strategies are compared to each other by application to an analytical test function.
Original languageUndefined
Number of pages8
Publication statusPublished - 2007
EventInternational Deep Drawing Research Group annual conference, IDDRG 2007 - Audi Hunaria Forum, Gyor, Hungary
Duration: 21 May 200723 May 2007


ConferenceInternational Deep Drawing Research Group annual conference, IDDRG 2007
Abbreviated titleIDDRG 2007


  • IR-59677

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