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首页> 外文会议>ASME Rail Transportation Division Conference >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：无需预先计算的铁路车辆动态的柔性轮/轨道接触型号

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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：应用了使用几何对应逐步概念的先进方法，以创建基于虚拟穿透理论的新轮/轨接触模型。由于在规定的对应关系中的独立性，几何形状和接触机构同时解决。该模型采用轮轨和轨道的穿透曲线，以及作为输入相关的蠕变，并产生驱动接触力作为输出。该模型的优势在于它不需要预制刚性接触情况。该方法允许在模型集成期间计算柔性，非椭圆形多个接触块。因此，具有子结构的轨道可以与柔性轮/轨道接触模型中的车辆分开振动。仿真结果表明该方法可用于各种轨道车辆动态问题。

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