Abstract：The failure of brake disc performance caused by thermal recession under emergency brake frequently results in serious traffic accidents. Based on the excellent wear resistant property of locust nonsmooth surface, the bionic brake disc with special microstructure surface was designed. According to the thermal analysis theory, the transient temperature field simulation of bionic brake discs was analyzed under various initial velocities. The influence of bionic brake disc surface structure on heat dispersion was discussed. The results show that the brake disc with circle pit nonsmooth surface structure possesses good heat dispersion performance to improve the brake disc performance. Compared to other surfaces, the circle pit surface can store air more easily and dissipate heat quickly by exchanging heat with air, and the generation of thermal fatigue and thermal wear caused by high temperature was restricted. A theoretical basis is provided for designing bionic brake discs with excellent heat dispersion and abrasive resistance performance.
2015, Vol. 36 
