On Steady State Dynamics of Railway Tracks Modelled as Continuous Periodic Structures

• Autorzy: Kruse H. , Popp K. , Krzyżyński T.
• Konferencja: Polish-German Workshop on Dynamical Problems in Mechanical Systems (5 ; 31.08-6.09.1997 ; Zakopane, Poland)
• Języki publikacji: EN

Abstrakty

EN

This paper deals with an advanced linear model for the vertical track motion. Left and right rail and sleepers are modelled as Timoshenko beams. The pads and the ballast/ subsoil can have an arbitrary frequency dependent complex stiffness. Hence, an additional damping due to wave radiation in the subsoil can be considered. The steady state solution for the system under uniformly moving harmonic forces is derived by Fourier and Laplace transform techniques. Numerical calculations are performed with system parameters of a track commonly used in Germany. The influence of the non-continuous rail support and the system behaviour at critical pairs of load velocity and load frequency are investigated. Furthermore, the consequences of shear deformation of the rails and the effect of the sleeper elasticity on the system dynamics are examined.

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Problems
• Rocznik: 1998
• Tom: Vol. 20
• Strony: 149--166
• Opis fizyczny: Bibliogr. 8 poz.

Twórcy

autor

Kruse H.

autor

Popp K.

autor

Krzyżyński T.

• Universitat Hannover, Institut fur Mechanik, Appelstrasse 11, 30167 Hannover, Germany