| The temperature field analysis of the brake is particularly vital to the braking performance of frictional brake and vehicle's safety performance, and it is also a significant reference in the design process of brakes.The main research matter and current research situation of the disk brake temperature field is reviewed, then the regulation of heat transfer on the friction interface is summarized. Based on the generation and distribution theories of frictional heat of the disk brake in the braking process, the contact model of the disc brake is established through the non-linear finite element software Abaqus, and the temperature field of the disk brake is calculated. Then establish another calculating model of the pad, which is contrasted with the contact model. The variation of pressure, disk rotation speed, the boundary condition of heat convection are considered in the numerical simulation, so the simulation result can accord with the fact much more.In the process of single urgency braking, the temperature of the brake disk shows the nonaxi-symmetric distribution and possesses a biggish difference in temperature in both axial and radial directions, but it is comparatively small in circumference. Along with the braking time increasing, the temperature tends to axi-symmetric distribution gradually. Due to the complex effect of frictional heat and heat convection, the highest surface temperature of the brake disk and the pad is located in the middle segment along the radial direction, and the temperature falls from the middle segment to the inner radius or from the middle to the outer radius along the radial direction.By calculating the transient temperature field of the disk brake in the urgency brake condition, the regulation of temperature distribution of disk and pad is showed; the result of this paper provides the theoretic foundation for further research on the thermal destroy of the disk brake, reasonable application and design.
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