[1]李再帏,练松良..武广高速铁路轨道不平顺谱特征分析[J].郑州大学学报(工学版),2013,34(05):52-55.[doi:10.3969/j.issn.1671-6833.2013.05.011]
　Ll Zai-wei,LIAN Song-liang.Characteristic Analysis of Track Irregularity Spectrum of Wuhan-Guangzhou High-Speed Railway[J].Journal of Zhengzhou University (Engineering Science),2013,34(05):52-55.[doi:10.3969/j.issn.1671-6833.2013.05.011]
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武广高速铁路轨道不平顺谱特征分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34卷
期数:
2013年05期
页码:
52-55
栏目:
出版日期:
2013-09-10

文章信息/Info

Title:
Characteristic Analysis of Track Irregularity Spectrum of Wuhan-Guangzhou High-Speed Railway
作者:
李再帏; 练松良.
上海工程技术大学城市轨道交通学院,上海,201620, 同济大学道路与交通工程教育部重点实验室,上海,201804
Author(s):
Ll Zai-wei1; LIAN Song-liang1
1. College of Urban Rail Transportation,Shanghai University of Engineering Science, Shanghai 201620,China,2.Key Labora-tory of Road and ’Traffic Engineering of the Ministry of Education ，Tongji University ，Shanghai 201804，China
关键词:
铁路轨道;  不平顺;  功率谱密度;  相干分析;  时频分析
Keywords:
railway track; irregularity ;  power spectral density;  coherence analysis;  time-frequency analysis
分类号:
U213.313
DOI:
10.3969/j.issn.1671-6833.2013.05.011
摘要:
以武广高速铁路轨道不平顺检测数据作为样本,对轨道不平顺谱的特征进行分析.首先,对检测数据进行功率谱分析,并与欧洲高速铁路谱进行比较,结果表明:轨道不平顺谱低于欧洲高速铁路轨道不平顺下限谱,但方向不平顺谱值相对较大；其次,利用相干函数对轨道不平顺和车体垂向和水平振动加速度进行相干分析,得出轨道不平顺不利波长范围；最后计算轨道不平顺的Hilbert时频谱,得出长波不平顺为高低不平顺和水平不平顺能量的主要波长成分,而中长波不平顺为方向不平顺和轨距不平顺的主要波长成分.
Abstract:
According to the track geometry data collected by track recording vehicles from Wuhan-Guangzhouhigh-speed railway,the characteristic of track irregularity is analyzed. Firstly,power spectral density is calcu-lated with Matlab program,and compared with European high-speed spectra of high irregularity and low irregu-larity.The statistic and analysis result indicates that the track irregularity spectrum values of Wuhan-Guang-zhou high-speed railway are close to European high-speed spectra of low irregularity except for some wave-length bands of track alignment irregularity spectrum values;this indicates that the track status of Wuhan-Guangzhou high-speed railway is better. Furthermore,the coherence functions are utilized to analyze the rela-tionship between track irregularities and vertical/lateral car body vibration accelerations. The range of detri-mental track irregularity wavelengths is larger than the common railroad.Finally,Hilbert marginal spectrum oftrack irregularity is calculated. The result shows that there are medium wave and long wave track irregularity inWuhan-Guangzhou high-speed railway.
更新日期/Last Update: 1900-01-01