高速铁路轨道不平顺参数多尺度相关性分析  

Multi-scale correlation analysis of track irregularities of high speed railway

作　　者：杨友涛 刘国祥[1,2] 刘成龙 张跃[4] 尹紫红 YANG You-tao;LIU Guo-xiang;LIU Cheng-long;ZHANG Yue;YIN Zi-hong(Faculty of Geosciences and Environmental Engineering,Southwest Jiaotong University,Chengdu 611756,China;State-Province Joint Engineering Laboratory in Spatial Information Technology for High-Speed Railway Safety,Southwest Jiaotong University,Chengdu 611756,China;School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China;School of information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]西南交通大学地球科学与环境工程学院,成都611756 [2]西南交通大学高速铁路运营安全空间信息技术国家地方联合工程实验室,成都611756 [3]西南交通大学土木工程学院,成都610031 [4]西南交通大学信息科学与技术学院,成都611756

出　　处：《吉林大学学报（工学版）》2019年第2期416-425,共10页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(41474003);教育部春晖计划项目(Z2014066)

摘　　要：基于多元经验模态分解的多分辨率特性,提出从不同尺度分析轨道不平顺参数之间相关性的方法。首先,利用多元希尔伯特-黄变换,分析轨道不平顺的能量分布及对应的波长特征;然后,利用改进的时变内在相关方法分析轨道不平顺在不同尺度下的相关性。对实测的轨道不平顺数据分析表明:样本数据的能量主要分布在空间波长4～36m的尺度内;左、右轨道在轨向和高低两方面整体上具有较强的相关性,轨距与轨向较差以及水平与高低较差在4～60m尺度内相关性较强。提出的轨道不平顺相关性分析方法可为科学地评价轨道质量奠定方法基础。Based on the multi-resolution characteristics of multivariate empirical mode decomposition,a method was proposed to analyze the correlation between track irregularity parameters at different scales.First,the energy distribution and corresponding wavelength characteristics of track irregularities were analyzed using multivariate Hilbert-Huang Transform.Then,the modified timedependent intrinsic correlation method was used to analyze the correlation of track irregularities at different scales.The analysis results of track dynamic irregularity show that the energy of track irregularity sample data is mainly distributed in the spatial wavelength of 4 mto 36 m,and there exists a strong correlations in both alignment and longitudinal level between the left and left tracks.The correlations between gauge and difference of double track alignment,and also between cross leveland difference of double track longitudinal level are strong in the wavelength range of 4 mto 60 m.The proposed method in this research lays foundation for scientific evaluation of track geometry quality.

关 键 词：道路与铁道工程 轨道不平顺 多元经验模态分解 希尔伯特变换 时变内在相关 

分 类 号：U213.2[交通运输工程—道路与铁道工程]