A METHOD TO CALCULATE VEHICLE VIBRATIONS AT RAIL JOINTS

While running on the track, a rail vehicle is excited to vibrate by the rail joints, the gaps in the track at the switches and crossings and by the changing elastic properties of the track. The resulting forced motion of the car body and its bogies largely depends on the kind and duration of the respective disturbance. Theoretically the forced motions can be determined by solving the set of equations with a given disturbance function. This calculation can be performed either on an analogue computer or on a digital computer. However, in view of the large number of equations, only a digital computer can normally be considered for solving such a problem, since an analogue computer with standard facilities does not have the number of components required for a simulation of the system. When using a digital computer, the set of equations is normally solved according to the Runge-Kutta method. This method involves, however, long computing times. This paper presents a computing method based on the weight function of the vehicle as an oscillatory system which results in a considerable reduction of the computing times. The method is illustrated by a simple example.

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  • Corporate Authors:

    Siemens (Georg) Verlagsbuchhandlung

    Luetzowstrasse 105-196
    1 Berlin 30,   Germany 
  • Authors:
    • Krettek, O
  • Publication Date: 1978-3

Language

  • German

Media Info

  • Pagination: p. 72-78
  • Serial:
    • Glasers Annalen ZEV
    • Volume: 102
    • Issue Number: 3
    • Publisher: Siemens (Georg) Verlagsbuchhandlung
    • ISSN: 0373-322X

Subject/Index Terms

Filing Info

  • Accession Number: 00178919
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Jul 29 1978 12:00AM