跨座式单轨交通作为新型的城市轨道交通制式，正在我国陆续推广应用。跨座式单轨车辆转向架多轮系、过约束的结构特征和小曲率弯道多的轨道线路特征，造成车辆走行轮轮胎偏磨严重，轮胎更换频繁，维护费用巨大，迫切需要开展走行轮轮胎偏磨机理及控制方法研究。本项目将以降低跨座式单轨车辆走行轮轮胎偏磨为目标，在单轨"车辆-轨道梁"系统耦合动力学的范畴内，研究等效试验系统和仿真技术，建立单轨车辆空间耦合动力学模型、轮轨关系模型和轮胎磨耗模型，分析车辆参数、轨道几何参数、轮轨接触参数等对走行轮轮胎偏磨的影响及规律，揭示走行轮轮胎偏磨机理，获取走行轮轮胎偏磨影响因子模型，构建走行轮轮胎偏磨评价体系；研究车辆参数、轨道几何参数和车轨接触参数的协调匹配关系，提出曲线轨道梁"理想走行曲面"的构形及表征参数，形成降低走行轮轮胎偏磨的车轨系统参数协调匹配理论与方法，为跨座式单轨车辆及转向架自主研发提供基础理论和方法支持。

As a new urban rail transit system ,Straddle-type monorail train begain popular around China. Because of the multi-wheel bogie,the structural feature of over constraint,and the track featural of small curvature and multicurve,the Straddle-type monorail train's running wheels are badly worn on the shoulders,so that we must replace tires frequently, and cost much on maintenance,and we must research on the principle of shoulder wear and the control method of running wheels immediately .The project is aimed to reduce Straddle-type monorail train's shoulder wear of running tire.In the coupling dynamics category between monorail vehicle and track beam, the establishment of equivalent test system and virtual test system will be researched, the coupling dynamics model of monorail vehicle , the relation model of wheel and rail ,and the model of tire wear will be established. We will analysis how parameters from vehicles, rail geometry and vehicle-rail contact affect the running wheel side abrarion. This model of running wheel side abrarion affect factor provides a system for evaluation of the running wheel side abrarion, the mechanism of running wheel's wearing will be revealed, the impact factors model of running wheel's shoulder wear will be got, the evaluation system of running wheel's shoulder wear will be built. Coordinative matching of parameters from vehicles, rail geometry and vehicle-rail contact is studied. We conclude a parameter set of conformation and characterization of an 'ideal running surface' for a curved rail bridge. In this way we introduce the theory and technique of vehicle-rail system parameter coordination matching for reduction of running wheels side abrarion. It provides basis theory and method supportis for the Straddle-type monorail vehicle and bogie independent research and development.