摘要
针对某国产SUV车型的塑料保险杠进行了结构简化,利用hypermesh软件建立塑了料保险杠的有限元分析模型。通过对该有限元分析模型的模态分析,得到保险杠的各阶模态频率和模态特性,并利用拓扑优化技术对保险杠进行拓扑优化。根据优化结果对保险杠结构进行改进并进行有限元分析,对比优化前后模态性能。结果表明,经过拓扑优化后的结构的模态性能有较大提高。
After a plastic bumper structure of a domestic SUV model is simplified, the finite element analysis model of the plastic bumper is built by using the hypermesh software. Through the modal analysis of the finite element analysis, modal frequencies of the bumper and modal characteristics are obtained and the topologic optimization method is applied to topology optimization of the bumper. The result of optimization is used to improve the bumper structure and the finite element analysis is conducted to compare the modal properties before and after optimization. Results show that modal performance of structures is greatly improved after the topology optimization.
作者
张世湖
吕伟妮
陈俊
熊希平
黎胜钦
Zhang Shihu;Lv Weini;Chen Jun;Xiong Xiping;Li Shengqin(Liuzhou Yuxin Fangsheng Automotive Trim Works CO,LTD.,Guangxi Liuzhou 545006)
出处
《汽车实用技术》
2019年第12期91-95,共5页
Automobile Applied Technology
关键词
保险杠
有限元分析
模态频率
拓扑优化
finite element analysis
bumper
modal frequency
topology optimization
