基于Hypermesh和Workbench的排气系统模态分析  

Modal Analysis of Vehicle Exhaust System by Hypermesh and Workbench

作　　者：朱峰[1] 李书晓[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院,安徽合肥230009

出　　处：《机械工程与自动化》2014年第1期62-64,共3页Mechanical Engineering & Automation

摘　　要：通过Hypermesh对给定汽车排气系统模型进行前处理,再导入到软件Workbench中进行分析,从而结合两个软件各自的优点,完成了排气系统模型的模态分析,得到了排气系统的前若干阶固有频率及其振型,为提高排气系统的工作可靠性提供了科学依据,为排气系统的动力学分析提供数据。Hypermesh is a powerful software of mesh dividing ,and Workbench has remarkable performance in the analysis of multi-physics coupling .A given model of the exhaust system of a vehicle is preprocessed by Hypermesh ,then it is imported to Workbench to be analyzed .Thus ,we can use both of their advantages to finishe the modal analysis of the vehicle exhaust system and obtain the first eight natural frequencies and vibration modes .The results provide reference to improve the functional reliability of the exhaust system ,and provide the data for dynamics analysis of exhaust system .

关 键 词：汽车排气系统 有限元模型 模态分析 

分 类 号：U464.134.4[机械工程—车辆工程] TP391.7[交通运输工程—载运工具运用工程]