结构布局优化对闸片温度场的影响  

Effect of Structural Layout Optimization on Temperature Field of Brake Pad

作　　者：李宝良[1] 苏肖肖 王国顺[1] LI Baoliang;SU Xiaoxiao;WANG Guoshun(Department of Mechanical Engineering, Dalian Jiaotong University, Dalian Liaoning 116028, China)

机构地区：[1]大连交通大学机械工程学院,辽宁大连116028

出　　处：《润滑与密封》2018年第4期21-25,共5页Lubrication Engineering

基　　金：辽宁省教育厅计划项目(L2013187)

摘　　要：为提高高速列车制动系统中制动盘的使用寿命,参照动车组制动盘和闸片的实际尺寸,基于结构因子概念对摩擦块构成的闸片结构布局进行优化;应用有限元分析方法对优化前后的制动盘和闸片实体模型的温度场进行分析,得出优化前后制动盘和闸片的温度场分布。结果表明:优化后的闸片结构布局使制动盘的最高温度显著下降,且使制动盘和闸片在径向分布的温度均匀化程度显著提高;结构因子可以表征制动盘温度场的分布趋势,通过优化圆柱形闸片的结构因子,可优化制动盘及闸片温度场分布。In order to improve the service life of the brake disc of high speed train,the brake structure composed of cylindrical brake blocks is optimized by the structure factor based on the real size of brake disc and brake pads of high speed train.By analyzing the temperature field of the model of non-optimized and optimized brake disc and brake pads of high speed train,the distributions of temperature of non-optimized and optimized brake disc and brake pads are obtained.The results show that the highest temperature of brake disc is decreased by optimized brake pads,and the uniformity degree of temperature of brake disc and brake pads along the radial distribution is improved.The distribution trend of the temperature field can be characterized by the structure factors of the brake disc,then the distribution trend of the temperature field of the brake disc and the brake pads can be optimized by optimizing the structure factors of the cylindrical brake pads.

关 键 词：结构因子 制动盘 闸片 温度场 

分 类 号：TH117[机械工程—机械设计及理论]