摘要
利用摩擦磨损试验机(UMT-5)对铜基粉末冶金制动材料进行试验,得到不同制动速度、制动压力对铜基粉末冶金材料摩擦系数的影响以及摩擦材料的磨损量;利用ABAQUS建立试验过程摩擦材料仿真模型,通过仿真分析与试验结果进行比对,得到铜基粉末冶金材料温度及应力变化趋势。在相同工况情况下仿真结果与试验结果基本吻合,证明建立的摩擦制动仿真模型可靠有效。摩擦块温度场一直处于上升趋势。在制动速度为916 r/min时,高速列车摩擦块的摩擦系数较为稳定,且磨损量较小,因此应尽量在此速度下开始制动。
The copper-based powder metallurgy brake materials are tested by friction and wear tester (UMT-5), and the effects of different braking speeds and brake pressures on the friction coefficient of copper-based powder metallurgy materials as well as the wear of friction materials are obtained. The simulation model of friction material is established based on ABAQUS and the test process is compared with the experimental results by simulation analysis. The temperature and stress trends of copper-based powder metallurgy materials are obtained. Under the same working conditions, the simulation results are basically consistent with the experimental results, which proves the friction braking simulation. The model is reliable and effective, and the temperature field of the friction block is always in an upward trend. When the braking speed is 916 r/min, the friction coefficient of the friction block of the high-speed train is relatively stable and the wear amount is small, so the brake should be started at this speed as much as possible.
作者
丁干
王国权
曾圣迪
陈勇
王立勇
雷桐辉
DING Gan;WANG Guoquan;ZENG Shengdi;CHEN Yong;WANG Liyong;LEI Tonghui(Mechanical Electrical Engineering School, Beijing Information Science & Technology University,Beijing 100192, China;Collaborative Innovation Center of Electric Vehicles in Beijing,Beijing Information Science & Technology University,Beijing 100192,China;Key Laboratory of Modem Measurement and Control Technology of Ministry of Education,Beijing Information Science & Technology University,Beijing 100192,China)
出处
《北京信息科技大学学报（自然科学版）》
2019年第4期61-65,96,共6页
Journal of Beijing Information Science and Technology University
基金
科技创新服务能力建设-北京实验室建设-新能源汽车北京实验室(PXM2019_014224_000005)
关键词
粉末冶金材料
摩擦系数
磨损量
温度场
powder metallurgy material
friction coefficient
wear amount
temperature field
