郑武线轨道不平顺的相关性分析

Correlation analysis of track irregularities of Zhengzhou-Wuhan Railway

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.