Anti-crash structure optimization design based on topology optimization and induction structure

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Journal of Vibration and Shock ›› 2023, Vol. 42 ›› Issue (10) : 215-220.

LU Jijian,LEI Zhengbao

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Abstract

In view of the crashworthiness topology method can obtain the primary topology configuration of the anti-collision structure, which leads to the problem that the energy absorption efficiency of the anti-collision structure still has room to be further improved, based on the crashworthiness topology optimization, this paper obtains the primary topology configuration of the anti-collision structure, sets the inducement structure at the appropriate position of the primary topology configuration, and obtains the final topology configuration. Then the robustness design method is used to obtain the optimal size parameters of the final topology configuration, which makes up for the deficiency of the crashworthiness topology method based on the maximum energy absorption principle. Numerical examples show that the optimization design method proposed in this paper is flexible and effective, and the anti-collision structure obtained based on this method can better meet the design requirements.

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Crashworthiness design / Topology optimization / Induced structure / Optimal design

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LU Jijian,LEI Zhengbao . Anti-crash structure optimization design based on topology optimization and induction structure[J]. Journal of Vibration and Shock, 2023, 42(10): 215-220

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