铝制车身仿真方法研究及试验对标分析
DOI: 10. 19466/ j. cnki. 1674-1986. 2021. 04. 001
铝制车身仿真方法研究及试验对标分析
国举强, 张廷波, 吴有成, 李延峰
(浙江吉利新能源商用车集团有限公司, 浙江杭州 311228)
摘要: 基于某MPV 车型进行铝制车身碰撞安全仿真方法的研究, 应用内聚力材料模型模拟胶粘连接和应用Constrained_SPR2
模型模拟自穿刺铆钉, 并与正面碰撞试验结果进行对标, 从车身关键零部件变形模式、B 柱下部加速度曲线和其他试验数据等方
面进行了对比分析。结果表明: 正面碰撞仿真结果与试验高度吻合, 内聚力材料模型和Constrained_SPR2 模型能分别有效模拟胶
粘和铆接连接区域实际碰撞情况。
关键词: 正面碰撞; 对标分析; 铝制车身; 侵入量
中图分类号: U461. 91
Research on Simulation Method of Aluminum Body and Benchmark Analysis
GUO Juqiang, ZHANG Tingbo, WU Youcheng, LI Yanfeng
(Zhejiang Geely New Energy Commercial Vehicles Group Co. , Ltd. , Hangzhou Zhejiang 311228, China) Abstract: The research on the crash safety simulation method of aluminum body was carried out based on a MPV vehicle. The cohesive
material model and the Constrained_SPR2 were used to simulate the adhesive and the self-piercing rivet respectively, and benchmarked with the
frontal impact test results. A comparative analysis was made from the deformation mode of key body parts, the acceleration curve of the bottom of
B-pillar and other test data. The results show that the simulation results are highly consistent with frontal impact test results, and the cohesive
material model and the Constrained_SPR2 can accurately and effectively simulate the actual situation of adhesive and riveting respectively.
Keywords: Frontal impact; Benchmark analysis; Aluminum body; Intrusion
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