汽车B柱复合材料加强件的性能及拓扑优化研究  

Study on performance and topology optimization of automotive B-pillar composite reinforcement

作　　者：郑清春[1,2] 赵硕硕 朱培浩[1,2] 李明阳 贾景景 ZHENG Qingchun;ZHAO Shuoshuo;ZHU Peihao;LI Mingyang;JIA Jingjing(Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control,Tianjin University of Technology,Tianjin 300384,China;National Demonstration Center for Experimental Mechanical and Electric Engineering Education,Tianjin University of Technology,Tianjin 300384,China;Haicheng New Material Technology Co.,Tianjin 300380,China)

机构地区：[1]天津理工大学天津市先进机电系统设计与智能控制重点实验室,天津300384 [2]天津理工大学机电工程国家级实验教学示范中心,天津300384 [3]海程新材料科技有限公司,天津300380

出　　处：《天津理工大学学报》2024年第6期134-140,共7页Journal of Tianjin University of Technology

基　　金：国家自然科学基金(62073239)。

摘　　要：为探索复合材料在汽车B柱等安全部件中的应用,文中以汽车B柱玻纤尼龙复合材料加强件为例,通过仿真实验验证了其在安全性和轻量化上的性能,并通过对复合材料加强件进行耐撞性拓扑优化实现了加强件的减重降本设计。研究结果表明,玻纤尼龙复合材料加强件相比钢材方案显著提升了B柱的耐撞性,并实现单侧B柱1.15 kg的减重效果,而优化后的玻纤尼龙复合材料加强件在保证B柱耐撞性能的同时,实现减重248.8 g,原料成本降低27.5%。为玻纤尼龙复合材料加强件的应用和耐撞性拓扑优化技术在降本轻量化领域的推广提供了重要参考。In order to explore the application of the composite materials in safety components such as automotive B-pillar,this paper takes the fiberglass nylon composite reinforcement of automotive B-pillar as an example to verify its performance in safety and lightweight through simulation experiments,and realizes the design of weight reduction and cost reduction through crashworthiness topology optimization of composite reinforcement.The research results show that compared with the steel scheme,the glass fiber nylon composite reinforcement significantly improves the crudity of B-pillar and achieves a weight reduction effect of 1.15 kg on one side of B-pillar.The optimized glass fiber nylon composite reinforcement achieves a weight reduction of 248.8 g and a material cost reduction of 27.5% while ensuring the crudity of B pillar.It provides an important reference for the application of fiberglass nylon composite reinforcement and the popularization of crashworthiness topology optimization technology in the field of cost reduction and lightweight.

关 键 词：复合材料加强件 B柱 耐撞性能 拓扑优化 降本 侧面碰撞 

分 类 号：U463.8[机械工程—车辆工程]