Analytical and Numerical Analysis of Thermal Transfer in Disc Brake

Research in the field of transient thermal transfer has a great importance, both at the basic level and at the digital level. The automotive, railway and air industries focus on braking's problem, to improve the quality and efficiency of this one. The problem of braking is related to an intensive heat transfer, which depends on several factors, as the geometrical design of the disc, the material it's made and the nature of cooling. This work involves the analysis and characterization of this transfer, by conduction between the disc and the brake pads, for the automotive system. This work made it possible to make a comparative study, of the evolution of the temperature in the brake disc during the braking operation, between the analytical solution and the numerical solution of the resolution of the equation of the heat in the disc and pad of a braking system under real conditions. This study shows a satisfactory agreement between the two methods for the evaluation of the maximum temperature reached in the disc/pad contact surface during the braking operation. In addition, the knowledge of the temperatures reached in the elements in contact, is important to understand the phenomena taking place within the interface.