热塑性复合材料汽车座椅骨架总成极限强度仿真及参数优化设计

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中图分类号：TH122；TP391.99 文献标志码：B

Ultimate strength simulation and parameter optimization design of continuous thermoplastic composite automotive seat frame assembly

WAN Xiaofei 1，2，3 ，WANG Ding4，XU Yun5，LI Guolin5，LI Tianqi⁵

（1.Ningbo Instituteof Technology，Beihang University，Ningbo 31580，Zhejiang，China；2.Ningbo Key Laboratory for Advanced Delivery Equipment，Ningbo 3158OO，Zhejiang，China；3.School of Automation Scienceand Electrical Engineering，Beihang University，Beijing 1O0191，China；4.Zhejiang ZeekrAutomobile Research &Development Co.，Ltd. Ningbo 315336，Zhejiang，China;5.Zhejiang Zeekr Inteligent TechnologyCo.，Ltd.，Ningbo 315800，Zhejiang，China）

Abstract： A design scheme for a car seat back frame using continuous fiber-reinforced thermoplastic composite materials to replace traditional metal material is proposed.A finite element model of the thermoplastic composite seat frame assembly under extreme load conditions is constructed，and the stress states of the seat frame assembly under different extreme load conditions are compared and analyzed. The results show that the failure index of the composite seat backrest under diferent load conditions are significantly less than 1. Using the multidisciplinary optimization platform HyperStudy， a parameterized finite element simulation model of the composite seat frame assembly is constructed under different extreme load conditions.The global response surface method and genetic algorithm are used to optimize the parameters of the backrest frame metal components with tearing risk. Under the condition of ensuring that the strength of the metal components meets the requirements under diffrent extreme loads，the optimized seat frame assembly only increased in mass by 1.73% ：

Key words： automobile seat frame assembly；thermoplastic composite seat backrest； ultimate strength; numerical simulation; parameter optimization

0 引言

在2030年“碳达峰”与2060年“碳中和”战略目标的驱动下，节能减排已成为推进汽车行业绿色低碳发展的必由之路。（剩余8342字）