摘要：尽管近年来我国高速动车组不断地迅速发展，线路条件也越来越好，但是，车轮参数对列车动力学性能的影响依然是一大问题。各种车轮参数直接影响车轮和轨道之间的相互作用关系，直接影响列车在运行时是否安全，稳定。在本文中，主要研究方面是不同轮径对列车动力学性能的影响。用多体动力学软件SIMPACK建立了高速动车组动力学模型，运用数值计算方法，主要研究列车在不同的车轮轮径的情况下的运行特性，并且根据仿真计算数据，主要记录了列车的脱轨系数、列车的横向平稳性和垂向平稳性，临界速度等指标，通过比较不同轮径下所得的这些数据来验证其对高速动车组动力学性能的影响。62016

毕业论文关键词： SIMPACK；高速动车组；不同轮径；动力学性能

Research on the influence of wheel parameters on the dynamic performance of train

Abstract：Despite the rapid development of China's high-speed EMU in recent years, the line conditions are getting better and better. However, the impact of the wheel parameters on the dynamic performance of the train is still a big problem. A variety of wheel parameters directly affect the interaction between the wheel and track, and directly affect the the safety and stability of the train running time and stability when the train is running. In the article, the main research aspect is the influence of different wheel diameter on the dynamic performance of the train. Through the application of multi-body dynamics simulation software SIMPACK established high-speed vehicle dynamics model, numerical calculation method is adopted, the main research train in different wheel diameters under the condition of the operating characteristics, and according to the simulation calculation data mainly records derailment coefficient of train, the train lateral horizontal stability and vertical to the stationary, the critical velocity index, through the comparison of different wheel diameters in these data to verify the influence of high speed EMU dynamical performance. 

Key Words:  SIMPACK；EMU；different wheel diameter；dynamic performance

目录

1绪论 1

1.1 选题的目的和意义 1

1.2 国内外研究现状 2

1.3本论文的主要工作 3

2多体动力学原理及模型的建立 4

2.1 多体系统动力学发展 4

2.2 多体系统动力学软件SIMPACK简介 4

2.3 动力学模型建立 5

2.3.1 车辆动力学模型拓扑结构 5

2.3.2 模型结构参数 6

2.3.3 动力学仿真建模 7

2.4 本章小结 10

3动力学性能的评价指标 11

3.1 制定动力学性能评价原因 11

3.2 车辆动力学性能评价指标 11

3.2.1 车辆运行稳定性评价指标 11

3.2.2 车辆运行平稳性评价指标 12

3.2.3 车辆曲线通过能力评价指标 12

3.3 本章小结 13

4动力学仿真分析 14

4.1 高速动车转向架轮径概述 14