• 学报（中文） •

### 不同冲击工况下蜂窝填充薄壁结构的耐撞性能

1. 华侨大学 机电及自动化学院， 福建 厦门 361021
• 出版日期:2019-01-28 发布日期:2019-01-28
• 作者简介:张勇(1980-)，男，重庆市人，教授，目前主要从事汽车碰撞安全性研究. 电话(Tel.)：0592-6162598；E-mail: zhangyong@hqu.edu.cn.
• 基金资助:
国家自然科学基金(51675190)，福建省高等学校新世纪优秀人才支持计划资助项目

### Crashworthiness Research of Honeycomb-Filled Thin-Walled Structure Under Multi-Impacting Cases

ZHANG Yong,YAN Xiaogang,ZENG Yi,LAI Xiongming

1. College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, Fujian, China
• Online:2019-01-28 Published:2019-01-28

Abstract: A square honeycomb-filled thin-wall composite structure is proposed, and the crashworthiness of honeycomb filled structure and corresponding unfilled (thin-walled empty tube) structures under 12 kinds of impact conditions are systematically studied by experimental research and numerical analysis. At the same time, numerical optimization design of honeycomb filled structure is carried out by combining Kriging approximation technique and small population genetic algorithm. The results show that under various impact conditions, the energy absorption of the honeycomb filled structure is higher than that of the thin-walled empty tube structure, and the impact angle and velocity have significant effects on the energy absorption performance of the honeycomb filled structure. At the same impact velocity, the energy absorption of the honeycomb filled structure decreases as the impact angle increases. At the same impact angle, the energy absorption of the filled structure increases as the impact velocity increases. The Kriging approximation technique and the small population genetic algorithm optimize the optimal parameter matching of the honeycomb filled structure obtained by optimizing the honeycomb filled structure, which can improve the energy absorption of the honeycomb filled structure.