DYNAMICS AND STABILITY OF TRAIN-TRACK-SYSTEMS

The development of tracked high-speed transportation systems, e.g. fast magnetically levitated trains with speeds up to 400 km/h, is enforced in several countries. With increasing traveling speed the dynamic interaction between vehicles and guideway becomes more and more important. Thus, there is a strong need for simple but reliable models for such systems in order to study the dynamic effects. The aim of this paper is to introduce several linear and nonlinear models for train-track-systems and to investigate their dynamical behaviour. The models are useful to examine the vertical dynamics as well as the lateral dynamics. The track-subsystem is modelled as an infinite Bernoulli-Euler-beam on an elastic foundation, while the train-subsystems consists of different continuous or lumped models which are infinite or finite in length, respectively. Both subsystems are in relative motion to each other with constant velocity. The suspension is modelled by linear springs and in some cases also by nonlinear springs. The mathematical description of the different train-track-models depends on the modelling of the subsystems. It consists either of two coupled partial differential equations or a set or ordinary differential equations coupled with a partial differential equations. The solution is obtained applying the concept of travelling waves. Special attention is paid to the stationary solution and its stability.

  • Supplemental Notes:
    • This article is from "Proceedings of the International Conference on Recent Advances in Structural Dynamics (2nd) held at the University of Southampton, England on 9-13 April 1984. Volume 2," AD-A143 301, p 709-721.
  • Corporate Authors:

    Polish Academy of Sciences

    Institute of Fundamental Technological Research
    Swietokrzyska 21
    00-049 Warsaw,   Poland 
  • Authors:
    • Bogacz, R
    • POPP, K
  • Publication Date: 1984

Media Info

  • Pagination: 14 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00392945
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 29 1985 12:00AM