鼓式制动器热-结构直接耦合有限元分析  

Thermal-Structural Direct Coupling Finite Element Analysis of Drum Brake

作　　者：马迅[1] 纪飞龙[2] 杨启梁[3] 

机构地区：[1]湖北汽车工业学院汽车工程系,湖北十堰442002 [2]长城汽车股份有限公司技术中心,河北保定071000 [3]武汉科技大学汽车与交通工程学院,湖北武汉430081

出　　处：《机械传动》2014年第1期129-133,共5页Journal of Mechanical Transmission

基　　金：湖北省教育厅科研项目(D20102001)

摘　　要：鼓式制动器的制动过程涉及到接触应力场和摩擦生热温度场的相互耦合作用,在制动过程中,温度的变化会对结构的变形及材料属性产生影响,同时,结构的变形也会改变结构的热边界条件,进而又影响温度的变化。采用ANSYS直接耦合场方法建立鼓式制动器非线性仿真模型,考虑摩擦的影响,仿真计算一次紧急制动工况下鼓式制动器应力场、温度场以及摩擦副间接触压强分布随时间的变化情况。The contact stress field and friction heating temperature field are coupling effect during drum brake braking process, and in this process, the deformation of the structure and material property is influenced by the change of temperature. Meanwhile, the thermal boundary condition and temperature change are also changed by the deformation of structure. A nonlinear simulation model of drum brake is established by using ANSYS direct coupling field method, the effect of friction is considered, the stress field, temperature field and contact pressure distribution between friction pair change over the time of an emergency braking are simulated.

关 键 词：鼓式制动器 热—结构直接耦合 瞬态温度场 瞬态应力场 

分 类 号：U463.51[机械工程—车辆工程]