SIMPACK高速动车不同轮对磨耗指数影响分析+文献综述.docVIP

SIMPACK高速动车不同轮对磨耗指数影响分析+文献综述 摘要：尽管我国高速动车组在这几年里取得了很大的发展，线路条件得到了很好的提升，但是，轮轨接触问题和曲线通过问题仍然是高速动车组动力学系统中的一个重要问题。改进轮轨关系的一个方法就是改变轮轨接触几何关系，轮轨接触关系在一定程度上说明了列车的运行特性。因此，在研究轮轨接触几何关系的过程中，不同轮对踏面与不同的轨道外形的配合也是非常重要的。本文根据中国目前两种主要的车轮踏面类型mdash;mdash;LM和LMA踏面，研究不同的踏面在曲线通过时磨耗指数的影响。最后根据分析结果选择出较好的车轮踏面和较好的轮轨配合方案，进而选择出合适的踏面类型以保证车辆能安全、平稳地通过曲线。本文的研究对象是高速动车组，利用SIMPACK软件进行高速动车组动力学模型的建立，中分析了LMA、LM两种踏面的区别，并分析了这两种踏面对高速动车组在通过曲线时磨耗指数的不同，最后根据仿真计算数据讨论了不同轮对通过曲线时磨耗指数的影响。12786 关键词： 磨耗指数；高速动车组；轮对 Influence Analysis Of Wear Index of Different Wheelset Abstract：Although in recent years, Chinarsquo;s high-speed EMU has made great progress , the line conditions have been a good improvement , however , the wheel-rail contact problem and the curve through problem is still an important area in the high-speed EMU dynamics system. One way to improve the wheel-rail relationship is to change the wheel-rail contact geometry relationship, wheel-rail contact relationship to a certain extent, shows the running characteristics of the train. Therefore , in the process of research of wheel-rail contact geometry relationship, the wheel tread and the different tracks of different shape of cooperation is also very important. In this paper, based on China #39;s two main types of wheels - LM and LMA tread , study different tread in the curve through the impact abrasion index. According to the analysis results selected good wheel-rail and wheel tread cooperate solution, and then choose the appropriate type of tread in place to ensure that trains can safely and smoothly through the curve . The research object of this paper is high-speed EMU , using SIMPACK software to establish a dynamic model for high-speed EMU , the paper analyses the differences between the LMA, LM two tread and the two step in the face of high-speed EMU through attrition index of different curve, according to the simulation calculation data is discussed when the wheel through the curve of different wear index. 4.1 磨耗指数18 4.2 仿真计算与结果分析 18 4.2.1 LM踏面仿真结果1