THE DYNAMIC RESPONSE OF RAILWAY TRACK WITH UNSUPPORTED SLEEPERS

The dynamic response of railway track with a section of unsupported sleepers is examined experimentally and a mathematical model of such track is presented. The principal function of ballast at frequencies above 100 Hz is to damp vibration of the track while the resilience of the railpad attenuates forces transmitted to the sleeper. In the absence of ballast, concrete sleepers are likely to crack if there are modest wheel or railhead irregularities.

• Corporate Authors:

  Mechanical Engineering Publications Limited

  P.O. Box 24, Northgate Avenue
  Bury St Edmunds, Suffolk IP32 6BW,   England 
• Authors:
  • GRASSIE, S L
• Conference:
  • Institution of Mechanical Engineers, Proc Part D
• Publication Date: 1985

Media Info

• Serial:
  • Volume: 199
  • Issue Number: D2

Subject/Index Terms

• TRT Terms: Ballast (Railroads); Concrete; Concrete ties; Damping (Physics); Defects; Mathematical models; Railroad ties; Tie pads; Train track dynamics; Wheels
• Uncontrolled Terms: Ballast
• Old TRIS Terms: Flat wheels; Wheel defects
• Subject Areas: Public Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00452150
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 31 1985 12:00AM