Volume 2 Issue 3
. 
Turn off MathJax
Article Contents
Article Navigation >  Journal of Traffic and Transportation Engineering  > 2002  >  2(3): 27-29
WANG Kai-yun, ZHAI Wan-ming, CAI Cheng-biao. Method of equivalency transform for power spectrum density of track irregularity on central line from on left/right rail[J]. Journal of Traffic and Transportation Engineering, 2002, 2(3): 27-29.
Citation: WANG Kai-yun, ZHAI Wan-ming, CAI Cheng-biao. Method of equivalency transform for power spectrum density of track irregularity on central line from on left/right rail[J]. Journal of Traffic and Transportation Engineering, 2002, 2(3): 27-29.
shu

Method of equivalency transform for power spectrum density of track irregularity on central line from on left/right rail

  • Train and Track Research Institute, Southwest Jiaotong University, Chengdu 610031, China

More Information
  • Author Bio:

    WANG Kai-yun(1974-), male, a doctoral student of Southwest Jiaotong University, engaged in research of locomotive and vehicle/track coupling dynamics, contact geometric relationship between wheel and rail

  • Received Date: 2002-04-10
  • Publish Date: 2002-09-25
    Abstract
  • On the basis of the transform relation between railway track irregularity on the central line and railway track irregularity on the left/right rail derived from the power spectrum density in space domain, this paper puts forward a new method of equivalency transform for power spectrum density of railway track irregularity on central line from on left/right rail by means of the spectral estimation of cycle graphs and the algorithm of nonlinear least squares. According to the method, the parameters of the PSD function expression are given with an example.

     

    • FullText(HTML)
  • loading
    • References(8)
  • [1]
    CHEN Guo, ZHAI Wan-ming. Numerical simulation of the stochastic process of railway track irregularities [J]. Journal of Southwest Jiaotong University, 1999, 34(2): 138-142.
    [2]
    LUO Lin. Stochastic interferential functions of tracks [J]. China Railway Science, 1982, 3(1): 74-111.
    [3]
    Stochastic Oscillation Institute of Changsha Railway University. Study on stochastic interferential functions of locomotive and vehicle/track[J]. Journal of Changsha Railway University, 1985, 3(2): 1-38.
    [4]
    铁道部科学研究院. 我国干线轨道不平顺功率谱的研究(1-10)[R]. 北京: 铁道部科学研究院, 1999.
    [5]
    陈果. 车辆-轨道藕合系统随机振动分析[D]. 成都: 西南交通大学, 2000.10-24.
    [6]
    徐昭鑫. 随机振动[M]. 北京: 高等教育出版社, 1990. 261-271.
    [7]
    刘钦圣. 最小二乘问题计算方法[M]. 北京: 北京工业大学出版社, 1989.1-8.
    [8]
    Marquardt D W. An algorithm for least-squares estimation of nonlinear parameter[J]. Journal of the Society for Industrial and Applied Mathematic, 1963, 15 (11): 431-441.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article views (280) PDF downloads(198) Cited by()
    Proportional views
    Related

    Copyright《Journal of Traffic and Transportation Engineering》编辑部陕ICP备05001904号-1

    Address ：Editorial Department of Journal of Traffic and Transportation Engineering, Chang 'an University, Middle Section of South Second Ring Road, Xi 'an, Shaanxi（710064） Tel：029-82334388 Email：jygc@chd.edu.cn

    All visit:Today's visit:

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return