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首页> 外文会议>American Society of Mechanical Engineers(ASME) Rail Transportation Division Fall Conference; 20070911-12; Chicago,IL(US) >FLEXIBLE WHEEL/RAIL CONTACT MODEL FOR RAILWAY VEHICLE DYNAMICS WITHOUT PRE-CALCULATION
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FLEXIBLE WHEEL/RAIL CONTACT MODEL FOR RAILWAY VEHICLE DYNAMICS WITHOUT PRE-CALCULATION

机译：无需预计算的铁路车辆动力学的柔性轮/轨接触模型

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摘要

An advanced method using progressive concept of geometrical correspondence is applied to create a new wheel/rail contact model based on virtual penetration theory; The geometry and contact mechanism are solved simultaneously because of the independency in a defined correspondence; The model takes the penetrated profiles of wheel and rail and also associated creeps as inputs; and produces driving contact forces as output; The advantage of this model is that it doesn't require pre-tabulation of rigid contact situation; The method allows calculating flexible; non-elliptical, multiple contact patches during integration of the model; Consequently the rails with substructures can vibrate separately from the vehicle in a flexible wheel/rail contact model; The simulation results indicate that this method can be used in various rail vehicle dynamic problems.
机译：应用一种基于几何对应的渐进概念的先进方法，基于虚拟穿透理论创建了新的轮轨接触模型。由于在定义的对应关系中的独立性，因此同时解决了几何形状和接触机理。该模型将车轮和轨道的穿透轮廓以及相关的蠕变作为输入。并产生驱动接触力作为输出；这种模型的优点是它不需要预先列出刚性接触情况。该方法计算灵活。模型集成过程中的非椭圆形多个接触面；因此，带有下部结构的导轨可以在车轮/导轨接触模型灵活的情况下与车辆分开振动。仿真结果表明，该方法可用于各种轨道车辆的动力学问题。

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