基于ANSYS的汽车制动盘温度场仿真分析

摘要

以热分析理论为基础,使用有限元软件ANSYS建立乘用车普遍使用的通风式制动盘模型.在此基础上,模拟分析了紧急制动和持续制动工况下制动盘的瞬态温度场分布,得到了制动盘外部及其内部散热筋板的温度场、温度变化分布以及内外温度梯度的变化,为制动器的设计提供了较好的理论基础,也为判断制动器是否失效提供了依据.%In this paper, the finite element model for ventilated brake disc is developed based on the theory of finite element meth-od by using the modeling capability of finite element software ANSYS. From the simulation analysis of the emergency braking and the continued braking condition, the transient temperature field distribution, temperature distribution and temperature gradient in the external and internal cooling ribs of the brake disc are obtained. The numerical results can give some theoretical basis and judgment for the design and failure of the brake disc.