关键词: 仿生制动盘, 计算机模拟, 磨损, 热疲劳, 温度场, 应力场

Abstract: Three briefly kinds of bionic brake disk models are developed according to the theory of inherent and efficient heat dissipation of biology, which can reduce the maximum temperature of brake disk so as to prevent the wear and fatigue. Subsequently the temperature field and stress field under the urgent-braking condition are researched and compared between the bionic and the normal brake disks using ANSYS which is the finite element software. The result shows that the bionic brake disks can significantly reduce the temperature gradient and the stress concentration of brake disks, so that the tendency of thermal fatigue is reduced. And the order of reduction caused by the bionic brake disks from bigger one to smaller is: The bionic brake disk with grid grooves, the bionic brake disk with radial grooves, the bionic brake disk with ring groove. The decreased friction heat and the increased ability of heat-dissipation are the main reasons for the lower temperature. Based on these numerical results, some references for optimization design and experimental study of bionic brake disks in the future are provided.

Key words: Bionic brake disk, Computer simulation, Stress field, Temperature field, Thermal fatigue, Wear