TECHNICAL NOTES
Jul 1, 1997
Dynamic Response of Railway Tracks to Oscillatory Moving Masses
Authors: O. R. Jaiswal and R. N. IyengarAuthor Affiliations
Publication: Journal of Engineering Mechanics
Volume 123, Issue 7
Abstract
Dynamic analysis of a railway track under moving vibratory masses is presented in this technical note. In such problems the critical velocity is an important parameter. This is influenced by the dynamical characteristics of the moving load. The track is modeled as an infinitely long Euler-Bernoulli beam on Winkler foundation. A novel approach to obtain the steady-state response of the track subjected to N equispaced in-phase oscillatory moving masses. Effects of mass spacing and number of masses on the resonant frequency and critical velocity are studied. Track response due to a moving oscillatory line mass is also presented.
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References
1.
Duffy, D. G.(1990). “The response of an infinite railroad track to a moving, vibrating mass.”J. Appl. Mech., Am. Soc. of Mech. Engrs., 57, 66–73.
2.
Mathews, P. M.(1958). “Vibrations of a beam on elastic foundation.”ZAMM, 38, 105–115.
3.
Patil, S. P.(1988). “Response of infinite railroad track to vibrating mass.”J. Engrg. Mech., ASCE, 114(4), 688–703.
4.
Timoshenko, S. P. (1927). “Methods of analysis of statical and dynamical stresses in a rail.”Proc., 2nd Int. Congr. for Appl. Mech., 407–419.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 123 • Issue 7 • July 1997
Pages: 753 - 757
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Jul 1, 1997
Published in print: Jul 1997
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Authors
Affiliations
O. R. Jaiswal
Sr. Res. Analyst, Engrg. Mech. Res. India Ltd., 907, Barton Ctr., 84 M G Rd., Bangalore 560 001, India.
R. N. Iyengar
Dir., Central Build. Res. Inst., Roorkee 247 667, India; formerly, Prof., Dept. of Civ. Engrg., Indian Inst. of Sci., Bangalore 560 012, India.
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