城市轨道交通列车3次紧急制动工况下的制动盘热容仿真  

Thermo-mechanical Coupling Simulation of Brake Disc during 3 times Emergency Braking

作　　者：张立国[1] 

机构地区：[1]南车青岛四方机车车辆股份有限公司技术中心,青岛高级工程师266111

出　　处：《城市轨道交通研究》2013年第3期59-62,共4页Urban Mass Transit

摘　　要：城市轨道交通列车制动系统的设计需要满足3次紧急制动的需要,因此有必要对3次紧急制动工况下的制动盘热容量进行分析。基于有限元热机耦合仿真方法,通过建立的制动盘仿真模型,根据列车运行参数设置边界条件及仿真参数,利用有限元软件ANSYS计算得到瞬态温度场、应力场分布。仿真结果表明,基于ANSYS的有限元方法用于制动盘3次紧急制动工况分析的方法正确,根据设定的站间距分析的3次紧急制动工况下制动盘最高温度约293℃,最大应力约135MPa,满足列车运行设计要求,可为制动盘的工程应用提供参考。The design of urban rail transit system must satisfy the requirements of three times emergency braking, so it is necessary to analyze the thermal capacity of brake disc in the condition of three times emergency braking. Based on finite element analysis with heat coupling, the transient temperature field and stress field contours could be obtained by creating simulation model of the brake disc, setting boundary conditions by using the simulation parameters according to train operation data, and the finite element software ANSYS. The result of numerical simulation indicates that the method based on ANSYS is effective, and the peak temperature during three times emergency braking is about 293°, the maximal stress is about 135 MPa, which could meet the design requirements of operation.

关 键 词：地铁动车组 紧急制动 制动盘 热容仿真 

分 类 号：U270.35[机械工程—车辆工程]