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RESEARCH PAPERS

Steady-State Vibrations of a Beam on a Pasternak Foundation for Moving Loads

[+] Author and Article Information
H. Saito

Department of Mechanical Engineering, Tohoku University, Sendai, Japan

T. Terasawa

Hitachi Central Research Laboratory, Hitachi, Ltd., Kokubunji, Japan

J. Appl. Mech 47(4), 879-883 (Dec 01, 1980) (5 pages) doi:10.1115/1.3153807 History: Received May 01, 1979; Revised April 01, 1980; Online July 21, 2009

Abstract

The response of an infinite beam supported by a Pasternak-type foundation and subjected to a moving load is investigated. It is assumed that the load is uniformly distributed over the finite length on a beam and moves with constant velocity. The equations of motion based on the two-dimensional elastic theory are applied to a beam. Steady-state solutions are determined by applying the exponential Fourier transform with respect to the coordinate system attached to the moving load. The results are compared with those obtained from the Timoshenko and the Bernoulli-Euler beam theories, and the differences between the displacement and stress curves obtained from the three theories are clarified.

Copyright © 1980 by ASME
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