某新能源汽车制动踏板总成轻量化设计  

LIGHTWEIGHT DESIGN OF A NEW ENERGY VEHICLE BRAKE PEDAL ASSEMBLY

作　　者：聂小勇 何君儒 谢世坤[2] NIE Xiao-yong;HE Jun-ru;XIE Shi-kun(Jiangxi jiangling group new energy vehicle co.LTD,Nanchang Jiangxi 330052,China;School of Mechanical and Electrical Engineering,Jinggangshan University,Ji’an Jiangxi 343009,China)

机构地区：[1]江西江铃新能源汽车有限公司,江西南昌330052 [2]井冈山大学机电学院,江西吉安343009

出　　处：《井冈山大学学报（自然科学版）》2020年第2期65-70,共6页Journal of Jinggangshan University (Natural Science)

基　　金：国家自然科学基金项目(51165010);江西省自然科学基金课题项目(20181BAB206028);江西省教育厅科学计划项目(GJJ160732)。

摘　　要：为了校核某新能源汽车制动踏板总成的性能,首先基于Hypermesh软件建立其有限元模型。其次分别对其进行刚度性能分析、强度分析和疲劳分析。结果表明:其最大位移量小于目标值;其最大应力小于材料屈服;其本体及其焊缝的最大损伤值均小于1,三者的分析结果均能够满足设计要求。然后采用Isight集成平台对其进行轻量化设计,得到了其最优的厚度参数,分析结果表明:优化之后其各项性能也可以符合目标要求。最后对其优化方案进行实车试验,并且通过了整车道路验证。This paper is aiming at checking the performance of a new energy vehicle brake pedal assembly.Firstly,its finite element model is established by Hypermesh software,Secondly,the stiffness performance analysis,strength analysis and fatigue analysis are carried out.The results show that the maximum displacement is less than the target value,the maximum stress is less than the material yield,the maximum damage value of the body and its weld is less than 1,and the analysis results of the three can meet the design requirements.Then,the ISIGHT integrated platform is used to lightweight design,and the optimal thickness parameters are obtained.The analysis results show that the optimized performance can also meet the target requirements.In the end,the optimization schemesare tested on the real vehicle,and it passes the vehicle road verification.

关 键 词：制动踏板 刚度 强度 疲劳 轻量化 

分 类 号：TH16[机械工程—机械制造及自动化]