• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
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Volume 12 Issue 2
Mar.  2010
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Article Contents
Chen Guo, Zhai Wanming. Numerical Simulation of the Stochastic Processof Railway Track Irregularities[J]. Journal of Southwest Jiaotong University, 1999, 12(2): 138-142.
Citation: Chen Guo, Zhai Wanming. Numerical Simulation of the Stochastic Process of Railway Track Irregularities[J]. Journal of Southwest Jiaotong University, 1999, 12(2): 138-142.

Numerical Simulation of the Stochastic Process of Railway Track Irregularities

  • Publish Date: 25 Apr 1999
  • Several widely-used methods for simulating track irregularities at present are analyzed, and a new algorithm for describing the stochastic process of the railway track irregularities is constructed based on the power spectrum density equivalency in a frequency domain. The magnitude and randomphase ofthe frequencyspectrumare obtained respectively, then the simulation sample in a time domain is achieved through inverse Fourier transform (IFFT). Numerical simulation tests show that the new method is more concise and effective than other methods.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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