PIN-PIN RESONANCE AS A REFERENCE IN DETERMINING BALLASTED RAILWAY TRACK VIBRATION BEHAVIOUR

Pin-pin resonance (PPR) is one of the most significant preferred vibration modes of beams which are supported at equal distances, such as rails at sleepers in railway track structures do. PPR is a vibration that appears in a basic mode and several higher modes, however, the basic mode will have the highest amplitudes. In operational conditions of railways, PPR only partly influences wheel-rail contact of the train while the speed dependent sleeper-passing frequency is more important. Among other track resonances, PPR plays an important role in noise and vibration radiation of the rails and can be used as a meaningful instrument in track system dynamics recognition and optimization. However, existing simple analytic approximations are not adequately reliable to perform these recognitions. This paper demonstrates this by means of new tests and simulations based on improved models and methods but restricted to ballasted track structures.

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  • Corporate Authors:

    Delft University of Technology

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

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 35-51
  • Serial:
    • Heron
    • Volume: 45
    • Issue Number: 1
    • Publisher: Delft University of Technology
    • ISSN: 0046-7316

Subject/Index Terms

Filing Info

  • Accession Number: 00797635
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 14 2001 12:00AM