车辆-轨道耦合系统中基于变参数的三维图形仿真研究

3-D Simulation of Vehicle-Track Coupling SystemBased on Variable Parameters

建立一个随参数改变而改变的三维可视模型 ,是机车车辆 -轨道耦合系统动力学可视化的一个急待解决的重要问题 .文中将可视化、三维建模技术引入机车车辆 -轨道耦合动力学仿真中 ,系统地研究了机车车辆轨道耦合系统的基于变参数的三维图形仿真的方法 .综合建立了车辆模型的动态装配三维图形系统 ,直、曲线轨道的的三维离散结构等 ,为机车车辆 -轨道耦合动力学仿真建立了一个有效的可视化综合仿真平台 .

Forming an adaptive visualization model is one of the key problems existing in our research on the simulation of vehicle-track coupling dynamics. This paper introduces visualization techniques into the vehicle-track coupling simulation system, systematically studies how to make the vehicle-track coupling model self-adaptive to the varying model parameters, and presents a practical solution. For this study, 3-D dynamic assembly model of vehicle and discretized structure of straight/curve tracks are built. In the result, an effective and comprehensive visualization platform is established to simulate the vehicle-track coupling dynamics.