独立旋转车轮踏面外形优化设计方法  

Optimization Method for Independent Rotating Wheel Profiles

作　　者：钟晓波 陶功安 罗彦云 易兴利 

机构地区：[1]中车株洲电力机车有限公司,湖南株洲412001

出　　处：《四川理工学院学报（自然科学版）》2016年第3期33-38,共6页Journal of Sichuan University of Science & Engineering(Natural Science Edition)

基　　金：中国中车股份有限公司科技研究开发项目(2013NCK021)

摘　　要：车轮的踏面外形对有轨电车的动力学性能、轮轨接触疲劳特性以及轮轨磨耗有着重要影响。对于装有独立旋转车轮的车辆,轮轨接触角差曲线是一关键的动力学参数,它关系到轮对重力复原力的大小。重力复原力提供了独立轮对直线对中运行和曲线导向时所需要的导向力。为了改善有轨电车的动力学性能,提出了一种基于接触角差曲线为设计目标的车轮踏面外形设计方法,并开发了相应的计算机辅助设计程序。利用该程序对某型有轨电车采用的踏面外形Lma-30进行了优化,结果表明优化后的踏面外形具有良好的轮轨几何接触特性和动力学性能。Wheel profile plays an important role on the dynamics of tramway vehicles,also on the wheel-rail contact fatigue and wear. For the tramway vehicles with independent rotating wheels,the most important characteristic of the wheelrail contact is the contact kinetic parameters,which is related to the wheelset gravity resilience size Gravity resilience provides independent wheel to the straight line to run and the oriented guidance force that is needed. Because of the proper lateral gravity stiffness,the tramway vehicles with independent rotating wheels can run on straight track without flange contact. To improve the running characteristics,a target-oriented method for the design of tramway vehicles wheel profiles is presented.The target chosen is the contact angle difference function. A computer program based on this method has also been developed and is validated by way of example in which wheel profiles Lma-30 is investigated. The example shows that the optimized wheel profile has a good wheel / rail geometry performance on the running characteristics of tramway vehicles.

关 键 词：有轨电车 踏面设计 接触角差曲线 动力学性能 

分 类 号：U270.2[机械工程—车辆工程]