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Title: Multi-objective robust design of energy-absorbing components using coupled process-performance simulations
Authors: Najafi, Ali
Acar, Erdem
Rais-Rohani, Masoud
Keywords: metal forming simulation
crash simulation
process-performance simulation
robust design optimization
Issue Date: 1-Feb-2014
Publisher: Taylor & Francis Ltd
Source: Najafi, A., Acar, E., & Rais-Rohani, M. (2014). Multi-objective robust design of energy-absorbing components using coupled process–performance simulations. Engineering Optimization, 46(2), 146-164.
Abstract: The stochastic uncertainties associated with the material, process and product are represented and propagated to process and performance responses. A finite element-based sequential coupled process-performance framework is used to simulate the forming and energy absorption responses of a thin-walled tube in a manner that both material properties and component geometry can evolve from one stage to the next for better prediction of the structural performance measures. Metamodelling techniques are used to develop surrogate models for manufacturing and performance responses. One set of metamodels relates the responses to the random variables whereas the other relates the mean and standard deviation of the responses to the selected design variables. A multi-objective robust design optimization problem is formulated and solved to illustrate the methodology and the influence of uncertainties on manufacturability and energy absorption of a metallic double-hat tube. The results are compared with those of deterministic and augmented robust optimization problems.
ISSN: 0305-215X
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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