Modelling and Analysis of Force Transmission in Floating-slab Track for Railways

In order to study the vibration isolation performance of floating-slab track (FST), 3 track models were developed with different slab lengths. The ratio of root sum square of the force transmitted to the infrastructure to an assumed harmonic load on the rail is used as the criterion to evaluate vibration isolation performance for the FST. Results show the FST has good ability to isolate the vibration transmitted from the track to the infrastructure, compared with the reference (ballasted) track. As expected, the lower the natural frequency of the slab-bearing system, the better vibration isolation performance. It is also found that force transmitted to the infrastructure through the FST with short slab decays more rapidly along the track than through that with the long slab at low and higher frequencies. In addition, the performance of the FST with medium length slab is greatly affected by the dynamic behavior of the slab. Moreover, the FST shows different vibration isolation performance when the load acts at different positions relative to the slab.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09544097
• Authors:
  • Li, Z G
  • Wu, T X
• Publication Date: 2008-3

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 45-57
• Serial:
  • Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit
  • Volume: 222
  • Issue Number: F1
  • Publisher: Sage Publications Limited
  • ISSN: 0954-4097
  • EISSN: 2041-3017
  • Serial URL: http://pif.sagepub.com/content/current

Subject/Index Terms

• TRT Terms: Concrete slab track; Railroad engineering; Railroad rails; Rolling contact; Vibration; Vibration isolation
• Subject Areas: Construction; Railroads;

Filing Info

• Accession Number: 01103035
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 24 2008 7:42AM