盘式制动器热结构耦合分析

Thermal Analysis of Disc Brake

盘式制动器因具有制动力矩大,散热性好以及涉水恢复强等优点在现在汽车中被广泛使用,当汽车遇到障碍物或者根据主观需求需要停车或者减速时,踏下踏板,制动盘和摩擦片开始接触并发生摩擦,把动能转化为热,实现减速或者停车的作用。在这个过程中,制动盘温度会快速升高,热应力较大,有可能对制动盘造成破坏,因此需要对制动器进行热结构耦合分析,验证设计的合理性。摘要:

Disc brakes have been widely used in automobiles because of their advantages such as large braking torque, good heat dissipation, and strong wading recovery. When a car encounters an obstacle or needs to stop or decelerate according to subjective requirements, it depresses the pedal and brakes. The disc and the friction plate come into contact with each other and friction occurs, which converts kinetic energy into heat and achieves the effect of deceleration or stoppage. In this process, the temperature of the brake disc will rapidly increase and the thermal stress will be greater, which may cause damage to the brake disc. Therefore, it is necessary to perform thermal structural coupling analysis on the brake to verify the rationality of the design.