基于CAE技术某电动汽车车架模态及静态分析  

Modal and Static Analysis of An Electric VehicleFrame Based on CAE Technology

作　　者：于鹏 彭闪闪 胡汉春 YU Peng;PENG Shan-shan;HU Han-chun(Anhui Vocational and Technical College,Hefei 230011;Anhui Institute of Information Technology,Wuhu 241199;Wuhu An Pu Robot Industry Technology Research Institute,Wuhu 241000,Anhui China)

机构地区：[1]安徽职业技术学院,安徽合肥230011 [2]安徽信息工程学院,安徽芜湖241199 [3]芜湖安普机器人产业技术研究院,安徽芜湖241000

出　　处：《贵阳学院学报（自然科学版）》2022年第2期85-90,共6页Journal of Guiyang University：Natural Sciences

基　　金：安徽省高校自然科学研究项目“基于VOF相界面追踪和自适应笛卡尔网格的非牛顿单液滴撞击动力学数值研究”(项目编号:KJ2020A0826)。

摘　　要：以某型电动汽车车架设计尺寸为基础,基于CATIA及ANSYS计算机辅助设计与分析平台构建三维有限元分析模型。按照电动车典型工况,确定其边界条件,进行模态及静态分析。分析结果表明:(1)在前5阶模态频率中,基本不会发生共振现象,在第6、第7、第8、第9、第10阶模态频率中,可能发生共振现象,但是高频振动对整体影响较小;(2)满载弯曲工况,车架最大的变形位移量为0.145 mm,最大的应力为37.372 MPa;(3)满载扭转工况,车架最大位移量为0.149 mm,最大应力值为36.215 MPa。以上分析结果表明,设计符合要求。Based on the design size of an electric vehicle frame,a three-dimensional finite element analysis model is constructed based on CATIA and ANSYS computer-aided design and analysis platform.According to the actual working condition of electric vehicle,its boundary conditions are determined,and their modal and static analyses are carried out.The results show that:(1)resonance basically does not occur in the first five modal frequencies,and resonance may occur in the sixth,seventh,eighth,ninth and tenth modal frequencies.However,high-frequency vibration has little effect on the whole;(2)Under full load bending condition,the maximum deformation displacement of the frame is 0.145 mm;The maximum stress is 37.372 MPa;(3)Under full load torsion condition,the maximum displacement of the frame is 0.149 mm and the maximum stress value is 36.215 MPa.The above analysis results show that the design meets the requirements.

关 键 词：电动车车架 模态分析 静态分析 CAE技术 

分 类 号：TH12[机械工程—机械设计及理论]