三维热弹耦合场作用下汽车制动鼓的性能分析  

Analyzing Performance of Automobile Brake Drum in 3D Thermo-elastic Coupling Field

作　　者：邓劲莲[1] 善盈盈[1] 徐敬华[2] 

机构地区：[1]浙江机电职业技术学院机械工程分院,杭州310053 [2]浙江大学机械工程学系,杭州310027

出　　处：《机械科学与技术》2013年第3期405-409,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家青年科学基金项目(51005204);中国博士后基金项目(20100471000)资助

摘　　要：将制动中的辐射换热等效为对流换热,建立汽车鼓式双领蹄制动器三维热弹耦合模型。考虑制动摩擦力矩的影响,对多次连续制动工况下的制动鼓瞬态温度场、应力场、变形场进行有限元数值模拟,获得制动鼓的内外表面的温度、热应力及热机耦合强度变化规律。The three-dimensional thermo-elastic coupling finite element model （FEM） of a double-leading-shoe brake was established by equaling radiation heat transfer to convective heat transfer. The transient temperature field, stress field and deformation field of the brake were numerically simulated several times under the continuous braking condition and by considering the braking friction torque. The transient temperature, heat stress and thermo- elastic coupling strength change on the internal and external surfaces of the brake were obtained.

关 键 词：制动鼓 热弹耦合 温度场 热衰退 

分 类 号：TH12[机械工程—机械设计及理论]