THE DEVELOPMENT OF ANALYTICAL MODELS FOR RAILROAD TRACK DYNAMICS

A renewed interest during the past decade in high-speed rail transportation has underlined a need for better understanding of the dynamic interaction between vehicle and track. Speeds in excess of 160 km/h tax the presently used rail-tie-ballast track structure in terms of long-term stability and required track accuracy. Hence, the investigation of improved structures with better dynamic response characteristics and greater stability has followed in the wake of improved high-speed railcar design. This paper presented some recent developments in analytical modeling of railroad track structures for the study of vehicle-track dynamic interaction by computer simulation. Field measurements taken on main-line track of several North American railroads were used to evaluate the accuracy and define the necessary modifications of the computer model. Predictions of better overall system response and long-term stability from this computer model have aided in the preliminary design of several new track structures which are currently undergoing field evaluation.

  • Availability:
  • Supplemental Notes:
    • This article is extracted from Symposium on Railroad Track Mechanics, RRIS 01 130826, Publication 7602.
  • Corporate Authors:

    Princeton University

    Department of Civil Engineering
    Princeton, NJ  United States  08450
  • Authors:
    • Ahlbeck, D R
    • MEACHAM, H C
    • PRAUSE, R H
  • Conference:
  • Publication Date: 1975-10

Media Info

  • Pagination: p. 21-22
  • Monograph Title: SYMPOSIUM ON RAILROAD TRACK MECHANICS PRINCETON UNIVERSITY, 1975

Subject/Index Terms

Filing Info

  • Accession Number: 00130827
  • Record Type: Publication
  • Source Agency: Princeton University
  • Report/Paper Numbers: 76-TR-1
  • Contract Numbers: DOT-FR-54175
  • Files: TRIS
  • Created Date: Apr 7 1976 12:00AM