Comparison Investigation on Temperature Field in Solid and Ventilated Disc Brake using 3D Thermo-mechanical Coupling Model

The brake system is an important part of automobile safety system. The solid pad-disc brake system is divided into two parts: rotating disc and the stationary pads. The frictional heat, which is generated on the interface of the disc and pads, can cause high temperature during tbe braking process. The object of the present study is to investigate difference of the temperature field in the pad-disc assembly between solid disc and ventilated disc brake. The pad-disc brake assembly is built by 3D model with the thermo-mechanical coupling boundary condition. In the simulation process, in order to simulate the process of heat produced by friction, the brake pressure is applied to the back surface of pad, and the disc rotation is controlled by the angular velocity function based on the multi-body technique.