Vibration Analysis of Track Structure for High-Speed Railway Based on Fourier-Transform Method

By means of establishing the continuous elastic 3 layers beam model for track structure with random irregularity of track vertical profile, the vibration equations of the track structure are transformed by Fourier Transform. The vibration displacements in Fourier Transform domain are solved with this transformed equation. Then, the vibration responses of the track structure are obtained by performing Inverse Fast Fourier Transform. This technique is applicable to any complicated dynamics problem of the track structure. Vibration responses of track structure stimulated by several of existing high-speed Electric Multiple Units in China are calculated in this paper. Vibration velocity and acceleration of track structure are obtained by analyzing the displacement. Each sub-structure vibration of track when a train passes by is analyzed. Influences of track irregularity and train velocity on track response are investigated. Some track vibration regularities of high-speed railway are obtained at the end of this paper.

• Record URL:
  • https://doi.org/10.1061/41039(345)171
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784410394
• Supplemental Notes:
  • © 2009 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Liu, Linya
  • Lu, Zhuqing
• Conference:
  • Second International Conference on Transportation Engineering
  • Location: Chengdu , China
  • Date: 2009-7-25 to 2009-7-27
• Publication Date: 2009-7

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1033-1038
• Monograph Title: International Conference on Transportation Engineering 2009

Subject/Index Terms

• TRT Terms: Electric multiple unit cars; Fast Fourier transforms; Fourier transforms; High speed rail; Railroad tracks; Vibration
• Geographic Terms: China
• Subject Areas: Design; Railroads; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01525194
• Record Type: Publication
• ISBN: 9780784410394
• Files: TRIS, ASCE
• Created Date: May 24 2014 12:46PM