汽车钢板弹簧CAE仿真分析与台架试验对标研究  

CAE SIMULATION ANALYSIS AND RIG TEST VALIDATION RESEARCH OF AUTOMOBILE LEAFSPRING

作　　者：陈为欢[1] 熊伟[1] 辛建伟 葛文韬 余显忠[1] 周贤苏 CHEN WeiHuan;XIONG Wei;XIN JianWei;GE WenTao;Yu XianZhong;ZHOU XianSu(Jiangling Motors Co.,Ltd.,Nanchang 330200,China)

机构地区：[1]江铃汽车股份有限公司产品开发总院,南昌330200

出　　处：《机械强度》2023年第4期845-849,共5页Journal of Mechanical Strength

基　　金：“十四五”国家重点研发计划(2022YFB2503505)资助。

摘　　要：针对新设计汽车钢板弹簧,有物理试验和计算机辅助工程(Computer Aided Engneering,CAE)仿真两种手段来评估板簧的疲劳寿命,物理试验周期长、费用高,CAE仿真周期短、费用低。目的是找出一种应用CAE仿真分析手段来有效分析预测钢板弹簧疲劳寿命的方法,从而实现缩短板簧开发周期并降低开发成本;对钢板CAE仿真和台架试验进行了刚度及强度的对标分析,找出了能够准确模拟刚度和强度的CAE刚强度仿真方法;在确保CAE仿真模型能准确分析板簧刚强度的基础上,通过实测板簧材料疲劳性能曲线,基于Miner累积损伤理论,应用不同表面修正系数对钢板弹簧进行寿命分析,并和疲劳台架试验对标进行分析,找出了一种能够较为准确评估板簧寿命的CAE疲劳仿真分析方法。最终形成了一套基于CAE分析的较为可靠的钢板弹簧疲劳寿命预测方法,该方法有效性较好,对有效预测汽车钢板弹簧的疲劳寿命具有较高的工程价值。There are two methods to verify the durability characteristics of a new designed leafspring,there are physical test which takes more time and cost and CAE simulation which is time-saving and cost-saving.Aiming at coming up an effective CAE simulation of the leafspring life,the CAE simulation for stiffness and strength with rig test is validated.Base on the validated CAE method,with material property from test,CAE fatigue simulation is conducted with different surface treatment factor and validated with rig test to find out the best parameter for good life correlation.Finally,an effective CAE life prediction of automotive leafspring is provided,and the solution can serve as a good reference for the industry.

关 键 词：汽车 钢板弹簧 疲劳寿命 台架试验对标 

分 类 号：TH16[机械工程—机械制造及自动化]