高速动车组轮盘用紧固螺栓仿真分析  

Numerical Simulation for Bolt Coupling Used on EMU Brake Disc

作　　者：吕宝佳[1] 李继山[1] 焦标强[1] 陈德峰[1] 顾磊磊[1] 

机构地区：[1]中国铁道科学研究院机车车辆研究所,北京100081

出　　处：《铁道机车车辆》2011年第5期121-123,131,共4页Railway Locomotive & Car

摘　　要：高速动车组轮装制动盘通过多个螺栓与车轮固定,制动过程中,由于制动盘和螺栓产生热变形,导致螺栓承受较大拉应力,存在失效可能。利用有限元软件ABAQUS,建立了与实际相符的高速动车组轮装制动盘、车轮、联接件、螺栓套的有限元模型,螺栓施加相应的预紧力。计算得到300km/h高速动车组制动盘和螺栓联接件的温度场和应力场结果,校核了螺栓强度,为不同时速的动车组轮装制动盘用螺栓提供了模拟计算方法。在1∶1台架试验上,验证了模型温度场计算的准确性。EMU brake discs and wheel fixed through a number of bolts. It is a possibility of failure that bolts to withstand high tensile stress during braking. Based on the finite element program ABAQUS, established a model consistent with the actual including brake discs, wheel, bolt with pretension force, nut and elastic sleeve. It simulates the value of temperature and stress fields for brake disc and coupling on the EMU of 300 km/h. It also provides a simulation method for which bolt used on different design speed of the EMU. At the same time this article proves the accuracy of temperature numerical simulation by test results from bench test of 1 ： 1.

关 键 词：制动盘 螺栓 预紧力 热应力 仿真分析 

分 类 号：U266.235.1[机械工程—车辆工程]