摘要
制动器是车辆的重要组成部分,制动器的热稳定性对车辆等稳定性、安全性等有很大影响。在有限元软件环境中建立鼓式制动器的有限元模型,鼓式制动器加载条件按照实际安装情况加载,同时考虑螺栓预紧力对制动鼓仿真性能的影响。分析工况分为紧急制动和德国15次连续制动两种工况。仿真分析结果表明:螺栓预紧力对鼓式制动器的仿真分析结果影响较大;紧急制动的工况下制动鼓最高温度远低于德国15次连续制下的制动鼓最高温度;温度越高引起的热应力越大;给制动器的进一步改进提供指导依据。
Brake is an important part of vehicle, and brake thermal stability has a great influence on the vehicle such as stability, security, etc. In the finite element software environment it establishes finite element model of the drum brake drum brake load condition according to the actual installation load, at the same time considering the bolt pre-tightening force effect the pegCorrnar^e of the brake drum simulation~ Analysis of working condition is divided into 15 consecutive braking emergency braking and Germany two kinds of working condition is analyzed. The simulation results show that the bolt pre-tightening force influences the analysis results of the drum brake; emergency braking under the condition of the highest temperature of the brake drum is far lower than the German 15 consecutive under the highest temperature of the brake drum; the greater the thermal stress the higher the temperature is; Provides guidance basis for the further improvement of the brake.
出处
《机械设计与制造》
北大核心
2015年第3期129-131,共3页
Machinery Design & Manufacture
