等效锥度的两种准线性计算方法的对比研究  

Study of Two Quasi-linear Methods for Calculating the Equivalent Conicity

作　　者：林凤涛[1,2] 王悦明[1] 文彬[1] 董孝卿[1] 吴宁[1] 

机构地区：[1]中国铁道科学研究院,北京100081 [2]华东交通大学载运工具与装备教育部重点实验室,江西南昌330013

出　　处：《铁道机车车辆》2013年第1期53-58,共6页Railway Locomotive & Car

基　　金：国家基础研究发展计划(973项目)(2011JL711104);铁道部科技研究开发项目(2011J001);国家自然科学基金(51005075);华东交通大学校立科研基金(10JD12)

摘　　要：等效锥度是广泛用于表征轮、轨接触几何关系的重要参数之一,是轨道、车辆及多体动力学仿真计算、车辆运行性能评定或验收试验等主要指标。但是它不考虑接触的非线性特性,计算的不同结果使得目前国内技术交流和车辆运行性能评定结果不一致。现基于对等效锥度参数研究概述总结,对目前简化计算中常用的准线性化中的KLINGEL方法和Δr函数线性回归法进行对比分析,结合目前我国3种高速动车组轮、轨副(XP55,S1002CN和LMA)进行计算,并建议采用统一算法,为工程技术和理论研究奠定基础。The equivalent conicity is one important parameter that used to characterize the wheel/rail contact geometry, and is the key indicators in the track, vehicles and multi-body dynamics simulation, and also in the vehicle＇s performance evaluation or acceptance testing. But it does not take into account the nonlinear contact influence, and different reduction algorithms cause that technological ex changes and the vehicle＇s performance evaluation results are inconsistent. Based on the overview of the parameters of the equivalent conicity, This article presents the contrast and comparative analysis of the two calculations of quasi-linear function of KLINGEL and the linear regression of the rolling radii difference function At, also shows the influence of the contact nonlinearities on the wheel/rail contact geometry with the calculation of three CRH wheel/rail pairs（XP55, S1002CN and LMA） used the two methods, and also recommended that a unified algorithm should be adopted in order to lay a good foundation for engineering practice and theory research.

关 键 词：等效锥度 非线性接触 KLINGEL算法 半径差函数线性回归法 

分 类 号：U260.11[机械工程—车辆工程]