NUMERICAL ANALYSIS AND EXPERI-MENT OF UNSTEADY THERMAL FIELD OF ROTOR PLATE FOR EDDY CURRENT RETARDER  

作　　者：LIU Chengye HE Ren 

机构地区：[1]School of Automobile Engineering, Jiangsu Teachers University of Technology, Changzhou 213001, China [2]School of Automobile and Traffic Engineering, Jiangsu University,Zhenjiang 212013, China

出　　处：《Chinese Journal of Mechanical Engineering》2008年第4期71-75,共5页中国机械工程学报（英文版）

基　　金：Department of Science and Technology of Jiangsu Province,China(No. BE2003-46).

摘　　要：The physical model based on heat transfer theory and virtual boundary method for analyzing unsteady thermal field of rotor plate for eddy current retarder used in automobile is established and boundary conditions are also defined. The finite element governing equation is derived by Galerkin method. The time differential item is discrete based on Galerkin format that is stable at any condition. And a new style of varying time step method is used in iteration process. The thermal field on the rotor plate at the radial and axle directions is analyzed and varying temperature at appointed points on two side-surfaces is measured. The testing and analytical data are uniform approximately. Finite element method can be used for estimating thermal field of the rotor plate at initial design stage of eddy current retarder.The physical model based on heat transfer theory and virtual boundary method for analyzing unsteady thermal field of rotor plate for eddy current retarder used in automobile is established and boundary conditions are also defined. The finite element governing equation is derived by Galerkin method. The time differential item is discrete based on Galerkin format that is stable at any condition. And a new style of varying time step method is used in iteration process. The thermal field on the rotor plate at the radial and axle directions is analyzed and varying temperature at appointed points on two side-surfaces is measured. The testing and analytical data are uniform approximately. Finite element method can be used for estimating thermal field of the rotor plate at initial design stage of eddy current retarder.

关 键 词：Eddy current retarder Thermal field Numerical analysis Varying time step method 

分 类 号：TH132.46[机械工程—机械制造及自动化] TQ320.5[化学工程—合成树脂塑料工业]