车用涡轮增压器压气机叶轮振动特性分析  

Vibration Characteristic Analysis of Vehicle Turbocharger Compressor Impeller

作　　者：陈朝辉[1] 刘义清[1] 刘力强[1] 蚩小霞[1] 

机构地区：[1]昆明理工大学应用技术学院,云南昆明650093

出　　处：《小型内燃机与摩托车》2010年第2期85-87,共3页Small Internal Combustion Engine and Motorcycle

基　　金：云南省教育厅资助项目(07Y11359);昆明理工大学资助项目(校青2007-15)

摘　　要：利用CAD软件对增压器的压气机叶轮进行了三维实体造型,并运用有限元分析软件I-DEAS对叶轮进行振动特性分析,得到了叶轮在不同转速下的固有频率值及相应振型,通过Matlab软件绘制Camp-bell图,找到了叶轮容易发生共振时的转速和激振频率。从而为该增压器叶轮的优化设计提供依据。CAD software is adopted to construct a 3D solid model of compressor impeller. Vibration characteristic analysis of compressor impeller is then carried out by finite element analysis software I-DEAS to obtain natural frequencies under different rotate speed and corresponding vibration modes. Campbell picture is protracted by software Matlab to find out the rotate speed and forced frequencies when impeller is easy to resonate, which may be referential to the optimization of turbocharger compressor impeller.

关 键 词：涡轮增压器 压气机叶轮 模态 共振特性 共振 

分 类 号：TK421.8[动力工程及工程热物理—动力机械及工程] U464.115[机械工程—车辆工程]