交互式参数化轨道交通车辆制动盘热仿真系统

Interactive Parameterized Thermal Simulation System for Rail Transit Vehicle Brake Discs

目的:制动盘是车辆制动过程中摩擦热的主要承载体,其热仿真结果是盘体设计中的重要参考部分。针对目前轨道交通车辆制动盘的热仿真效率低与仿真分析操作难度高的问题,采用VB语言与APDL语言构建了一种交互式参数化轨道交通车辆制动盘热仿真系统。方法:介绍了交互式参数化制动盘热仿真原理,并基于该原理确定了热仿真系统中交互式界面的参数需求;介绍了制动盘热仿真系统的构成;以某型车辆为例,基于制动盘热仿真系统对其制动盘进行仿真计算。结果及结论:制动盘热仿真系统分为界面操作层、算例实现层和数据操作层三部分;热仿真系统的仿真结果与文献测试结果的温度误差小于5%;制动盘热仿真系统的仿真时间为6 min,手动操作ANSYS软件仿真时间为62 min,制动盘热仿真系统能够大幅提高仿真计算效率。

Objective:The brake disc serves as the primary carrier of frictional heat throughout vehicle braking process,and its thermal simulation results are crucial reference for brake disc design.To address the issues of low thermal simulation efficiency and high complexity in simulation analysis operation of rail transit brake disc,an interactive parameterized thermal simulation system for rail transit vehicle brake disc is developed using VB language and APDL language.Method:The principles of interactive parameterized BDTS(brake disc thermal simulation)is introduced,based on which the parameter requirements for the interactive interface in the thermal simulation system are determined.Based on a specific vehicle model,the composition of the BDTS system is presented.The brake disc is simulated and calculated using the thermal simulation system.Result&Conclusion:The BDTS system consists of three parts:the interface operation layer,the case implementation layer,and the data operation layer.The temperature deviation between the simulation results of the thermal simulation system and the temperature test results in literature is less than 5%.The simulation time for the BDTS system is 6 minutes,while manual operation with ANSYS software takes 62 minutes.Thus,the BDTS system can greatly improve the simulation calculation efficiency.