基于HyperMesh对汽车三元催化器模态分析及优化设计  

Modal Analysis and Optimization Design of Automotive Three-way Catalytic Converter Based on HyperMesh

作　　者：盛守锋 胡义伍 杜明 房涛 刘屹 王许华 宋志良 Sheng Shou-feng;Hu Yi-wu;Du Ming;Fang Tao;Liu Yi;Wang Xu-hua;Song Zhi-liang(Anhui Actblue Environmental Protection Co.,Ltd.,Anhui Chizhou 247100)

机构地区：[1]安徽艾可蓝环保股份有限公司,安徽池州247100

出　　处：《内燃机与配件》2025年第3期31-33,共3页Internal Combustion Engine & Parts

基　　金：国家重点研发计划项目“近零排放高效能柴油车控制技术及示范应用项目”(2023YFC3707200)。

摘　　要：本文将某乘用车的三元催化器作为研究目标,利用HyperMesh有限元分析软件对三元催化器模型进行有限元分析,通过对三元催化器的模态分析,得到了三元催化器的固有频率。为了使三元催化器的固有频率能够避开发动机的激励频率,对三元催化器的模型结构进行了优化设计,提升三元催化器的固有频率。最后,对优化后的三元催化器模型重新进行有限元分析,结果表明满足其模态要求,优化后的模型其固有频率避开了发动机的激励频率。In this paper,the three-way catalytic converter of a passenger car is taken as the research goal,and the finite element analysis of the three-way catalytic converter model is carried out by using HyperMesh finite element analysis software,and the natural frequency of the three-way catalytic converter is obtained through the modal analysis of the three-way catalytic converter.In order to make the natural frequency of the three-way catalytic converter avoid the excitation frequency of the engine,the model structure of the three-way catalytic converter was optimized to improve the natural frequency of the three-way catalytic converter.Finally,the finite element analysis of the optimized three-way catalytic converter model is re-performed,and the results show that the natural frequency of the optimized model avoids the excitation frequency of the engine to meet its modal requirements.

关 键 词：HYPERMESH 三元催化器 模态分析 优化设计 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]