多组件结构系统布局拓扑优化中处理组件干涉约束的惩罚函数方法

doi:10.7527/S1000-6893.2016.0137

Abstract

Abstract:

There are an amount of overlap constraints in the integrated layout and topology optimization design of a multi-component system containing tens of components. The integrated layout and topology optimization design of multi-component systems containing varieties of components are discussed in this paper. The finite-circle method (FCM) based penalty function is applied to deal with the overlap constraints among different components. A combined penalty function consisting of compliance and overlap constraints functions is chosen as the new objective. The gradient based optimization algorithm is implemented to maximize the stiffness of the system involving hundreds of overlap constraints, a total of tens of different components. Clear configurations of structure and non-overlapping positions of components are obtained in the simultaneous integrated layout and topology optimization deign. The optimized designs have shown the validity and efficiency of the proposed penalty function in dealing with overlap constraints in the integrated layout and topology optimization design of multi-component systems.

Key words: topology optimization, multi-component system, combined penalty function, overlap constraint, finite-circle method

CLC Number:

V214.19

ZHU Jihong, GUO Wenjie, ZHANG Weihong, HE Fei. A penalty function based method for dealing with overlap constraints in integrated layout and topology optimization design of multi-component systems[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(12): 3721-3733.

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A penalty function based method for dealing with overlap constraints in integrated layout and topology optimization design of multi-component systems

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