基于HyperWorks的新能源车架有限元分析

Finite Element Analysis of New Energy Frame Based on HyperWorks

数字化验证在汽车全流程开发中占据越来越重要的地位,本文依托某公司在研车型项目,对工程设计阶段的新能源车辆车架数据进行设计校核及性能验证,基于HyperWorks有限元分析平台,首先对车架进行模态分析,考查其低频特性及验证有限元模型的准确性,然后分析车架在起步、制动、转向、转向制动、垂向冲击等五种典型工况下的应力分布情况,判断车身强度是否满足要求,为车架结构的优化设计提供了理论依据。

Digital verification plays a more and more important role in the whole process of automobile development.Relying on the vehicle model project under research of a company,this paper carries out design verification and performance verification on the frame data of new energy vehicles in the engineering design stage.Based on HyperWorks finite element analysis platform,firstly,modal analysis is carried out on the frame to examine its low-frequency characteristics and verify the accuracy of finite element model,Then,the stress distribution of the frame under five typical working conditions such as starting,braking,steering,steering braking and vertical impact is analyzed to judge whether the body strength meets the requirements,which provides a theoretical basis for the optimal design of the frame structure.