鼓式制动器有限元分析方法的研究  

Research of Finite Element Analysis of Drum Brakes

作　　者：马迅[1] 陈明东[1] 赵旭[2] 

机构地区：[1]湖北汽车工业学院汽车系,十堰442002 [2]辽宁省机械研究院有限公司,沈阳110032

出　　处：《机械设计与制造》2012年第6期217-219,共3页Machinery Design & Manufacture

基　　金：湖北省教育厅科研项目资助(D20102001)

摘　　要：运用通用有限元分析软件ANSYS Workbench建立了某鼓式制动器的三维几何及有限元模型。利用制动器应力测定试验方法和试验结果,采用三种不同的领从蹄上促动力的分配方式,并考虑凸轮转动和摩擦系数等不同方案,分析了制动力矩在制动过程中的变化规律,得到与试验结果相对应的仿真结果。将仿真结果与试验结果进行比较分析,研究合理的制动器应力场的有限元分析方法。在此基础上得出制动蹄与鼓之间的接触压强的分布特性及制动器各部件上的等效应力。A three-dimensional geometric and finite element model of a drum brake was set up by means of commercial FE software ANSYS Workbench.By means of the brake test method and results,three different allocation scheme and different directions of the promoting forces,as well as different frictional factors are considered.The simulation results which are corresponding to the experiment’s are obtained.Compared the results of the stress field simulation with the experimental,a reasonable finite element analysis method of the stress field was found out.Based on the simulation the result of contact pressure distribution between the brake drum and brake shoes are obtained as well as the equivalent stresses of the brake.

关 键 词：有限元分析 鼓式制动器 应力场 促动力分配 

分 类 号：TH16[机械工程—机械制造及自动化] U463.51[机械工程—车辆工程]