Dynamic Characteristics of Infinite and Finite Railways to Moving Loads
Publication: Journal of Engineering Mechanics
Volume 129, Issue 9
Abstract
Some fundamental dynamic characteristics of a railway subjected to a harmonic or constant moving load are established and presented in this paper. The railway is modeled as an infinite or finite Timoshenko beam on viscoelastic foundation. The dynamic-stiffness matrices characterized by the complex wave numbers are employed to deal with this problem. The relationship between the forced frequency and the resonant velocity of the moving load, and the resonant frequency of the railway are especially emphasized and intensively discussed. The fundamental dynamic characteristics of a railway modeled as a Bernoulli-Euler Beam on viscoelastic foundation are also included for comparison.
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Published In
Journal of Engineering Mechanics
Volume 129 • Issue 9 • September 2003
Pages: 987 - 995
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Mar 5, 2001
Accepted: Jan 16, 2003
Published online: Aug 15, 2003
Published in print: Sep 2003
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