Study on fast finite element simulation model of thermal analysis of vehicle brake

Based on study of the energy dissipation during the vehicle braking and the method of the phase transfer in the time region, the fast finite element simulation model for the braking cycle was established. The two dimensional FEA model was used to simulate the full symmetrical cycle brake-disk and brake-drum, and the three dimensional model was used for the hollow brake-disk with the thermal dissipation of the rib in the disk. The transient character of the energy dissipation coefficient, the thermal exchange coefficient, and radiation coefficient were considered, and then the simulation results of the transient temperature field distribution of disk were obtained. The simulation results are validated by the experiment test. So the validity and practicability of fast finite element simulation model are verified, and the model can be used in the anti-heat fade design and thermal fatigue design of the vehicle brake system.