3D打印制动盘的制动温度场仿真及试验验证

摘要

采用金属3D打印技术制造了悬挂式单轨车辆的2:1比例制动盘.为了验证该制动盘的实际使用可靠性,采用Ansys软件建立了相应的有限元模型,并且进行了紧急制动过程下的仿真,得出了相应过程中的制动盘温度场分布.为确认仿真结果的可靠性,采用试验装置对3D打印制动盘和传统铸造制动盘进行对比试验验证,测量制动盘温度分布.试验结果证明,3D打印制动盘能满足制动性能要求,可代替传统生产的制动盘.%3D printing technology is used to manufacture a 2:1 break disk for the suspended monorail vehicle.To actually verify the reliability of the break disk,the Ansys software is used to establish a finite element model,the emergency braking situation is simulated,and the distribution of break disk temperature field in corresponding situation is obtained.To verify the simulation result,a break process experimental device is used to compare the break disks manufactured by 3D printing and by traditional casting technologies,corresponding break disk temperature fields are also measured.The result indicates that 3D printing break disk can satisfy braking performance requirements and replace the traditional break disk.