基于拓扑优化与诱导结构的抗撞结构优化设计

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (10) : 215-220.

论文

卢积健，雷正保

作者信息 +

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

LU Jijian,LEI Zhengbao

Author information +

文章历史 +

摘要

鉴于耐撞性拓扑方法在实际使用中只能获得抗撞结构的初级拓扑构型，导致抗撞结构的碰撞安全性仍有进一步提升空间的问题，本文以耐撞性拓扑优化为基础，获得了抗撞结构的初级拓扑构型，在初级拓扑构型的适当位置设置诱导结构，得到最终吸能单元构型，再利用稳健性设计方法获取最终构型的最优尺寸参数，较好地弥补了基于最大吸能原则的耐撞性拓扑方法的不足。算例表明，本文提出的优化设计方法灵活有效，基于该方法得到的抗撞结构可以更好地满足设计要求。

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.

导出引用

卢积健，雷正保. 基于拓扑优化与诱导结构的抗撞结构优化设计[J]. 振动与冲击, 2023, 42(10): 215-220

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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