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.
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)
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)。
