郑武线轨道不平顺的相关性分析  

Correlation analysis of track irregularities of Zhengzhou-Wuhan Railway

作　　者：左玉云[1] 向俊[1] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075

出　　处：《铁道科学与工程学报》2006年第1期46-49,共4页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(50078006);铁道部科技研究开发计划项目(2001G0292003G043);教育部高等学校博士点科研基金资助项目(20010533004)

摘　　要：根据轨道不平顺相关函数的数据处理方法,基于郑武线轨道不平顺实测数据,对郑武线轨道不平顺的相关性进行分析,得出郑武线轨道高低、方向及水平不平顺的相关函数的具体表达式;此外,得出郑武线轨道水平不平顺状态最差,方向不平顺次之,高低不平顺相对较好;郑武线轨道高低、方向及水平不平顺彼此独立,因而可将某单一不平顺或几种不平顺组合作为车-轨系统振动分析激扰。According to the data analysis method for the correlation function of track irregularities and the great deal of field test data of track irregularities on Zhengzhou - Wuhan railway, the correlation analysis of track irregularities was made, the concrete expressions of correlation functions of track vertical profile, alignment and cross - level irregularities on Zhengzhou - Wuhan railway were obtained respectively. The results show that on Zhengzhou - Wuhan the track cross- level irregularity status is the worst, which is followed by the track alignment irregularity, track vertical profile is comparatively the best. The three types of irregulari supports a basis for choosing each irregularity or the combination irregularity as the exciting source of vibration analysis of vehicle - track system.

关 键 词：轨道 不平顺 相关函数 标准差 互相关系数 

分 类 号：U213[交通运输工程—道路与铁道工程]