OPTIMIZATION OF AN EMBEDDED RAIL STRUCTURE USING A NUMERICAL TECHNIQUE

This paper presents several steps of a procedure for design of a railway track aimed at development of optimal track structures under various predefined service and environmental conditions. The structural behavior of the track is analyzed using a finite element model in which the track and a moving train are incorporated. Parameters of the optimum track are determined by applying a numerical optimization technique. The optimization method employed uses Multipoint Approximations based on Response Surface fitting (MARS). To demonstrate the robustness of the procedure, it is applied to a problem of optimal design of an innovative railway track for high-speed trains--an Embedded Rail Structure. Requirements for the optimal design are related to the wear of the rails and wheels and the level of acoustic noise produced by a moving train. To obtain the optimal design, component dimensions and mechanical properties of the track are varied. Results of the optimization are presented and discussed.

  • Availability:
  • Corporate Authors:

    Delft University of Technology

    Faculty of Civil Engineering, Stevin Laboratory, P.O. Box 5048
    2600 GA Delft,   Netherlands 
  • Authors:
    • Markine, V L
    • DE MAN, A P
    • Esveld, C
  • Publication Date: 2000

Language

  • English

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 63-74
  • Serial:
    • Heron
    • Volume: 45
    • Issue Number: 1
    • Publisher: Delft University of Technology
    • ISSN: 0046-7316

Subject/Index Terms

Filing Info

  • Accession Number: 00797637
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 14 2001 12:00AM