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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.
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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

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  • 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.

     

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