基于UIC标准的动态数据统计特征对比  

Statistical Characteristics Contrast of Dynamical Data Based on UIC Standards

作　　者：朴明伟[1] 汤志钧[1] 吕倩 兆文忠[1] 

机构地区：[1]大连交通大学机械工程学院,辽宁大连116028 [2]齐齐哈尔轨道交通装备有限责任公司技术中心,黑龙江齐齐哈尔161002

出　　处：《大连交通大学学报》2011年第5期14-19,共6页Journal of Dalian Jiaotong University

基　　金：辽宁省教育厅2007年创新团队资助项目(2007T013)

摘　　要：为了更好地进行动态仿真的试验对比,提出了一种基于UIC 518的动态数据处理方法.为了满足动态数据采样的频谱成份要求,以最小直线采样段和完整曲线采样段的方式进行动态数据处理,并以2 m采样间隔和置信度0.15%或99.85%的形式给出采样最大值和采样均方差最大值,进一步克服了目前分析段采样制度所存在的忽略低频成份的不足.以最新研制的6轴双层集装箱跨装3车组作为研究对象,应用该方法所做的环行线试验对比表明:由于中轴轮对纵横向弱约束方案,3E轴构架转向架在高重心车辆应用中更加突出了其轮轨横向力大的缺点,进而导致横向平稳性问题,主要表现为车体侧墙上边梁中部横向加速度超标.In order to compare better the dynamical simulation with line test,a dynamical data transaction methodology based UIC 518 standards is presented.For satisfying the frequency spectrum ingredient requirement in dynamical data sampling,the dynamical data transaction is carried out in the minimum sampling length of tangent track and full curve length,and the sampling maximum values and the sampling r.m.s.maximum values are given in sampling distance 2 m and the confidence levels of 0.15% and 99.85%.For newly-developed 6-axle double-deck-container 3-wagon group with cross-loading gear,the loop rail test contrast by this methodology shows that,due to the longitudinal and lateral weak constraints of the mid-axle wheelset,when the application of 3E-axle frame bogies to the high-center-of-gravity vehicles,the deficiency of increasing the W/R lateral force is noticeable,resulted in the lateral stability problem,which is represented mainly in the lateral acceleration excess.

关 键 词：采样段 采样间隔 滑模均值 双层集装箱车辆 

分 类 号：U270.14[机械工程—车辆工程]