动力总成对排气系统动力学影响研究及排气组件敏感度分析  

A Study on the Effect of Power Train on Exhaust System Dynamics and the Sensitivity Analysis of Exhaust System Components

作　　者：李松波[1] 靳永军[1] 管西强[1] 张建武[1] 

机构地区：[1]上海交通大学机械与动力学院,上海200240

出　　处：《汽车工程》2008年第4期322-325,334,共5页Automotive Engineering

基　　金：上海市科教兴市重大产业科技攻关项目资助

摘　　要：在建立排气系统一维模型的基础上,研究了动力总成对排气系统动力学特性影响,并对排气关键组件的敏感度进行了分析。结果表明:动力总成是排气系统动力学分析不可忽略的因素,改变波纹管长度和刚度是调节排气系统固有频率分布的有效方法。Based on a one dimensional model set up, the effect of power train on the dynamic characteristics of exhaust system is studied and the sensitivity of exhaust system to its components is analyzed. The results show that the power train is important and indispensable to the dynamics analysis of the exhaust system, and it is effective to adjust natural frequency distribution of exhaust system by changing the length and stiffness of bellow.

关 键 词：动力总成 排气系统 敏感度 

分 类 号：U464.13[机械工程—车辆工程]