RESEARCH PAPERS: Papers on Rail Transportation

Vibration Modes of a 70-Ton Boxcar

[+] Author and Article Information
C. L. Orth

Federal Railroad Administration, Washington, D.C. 20590

G. Kachadourian

The MITRE Corp., McLean, Va. 22102

J. Eng. Ind 106(1), 21-27 (Feb 01, 1984) (7 pages) doi:10.1115/1.3185906 History: Received July 01, 1983; Online July 30, 2009


Vibration tests were performed on a 70-t boxcar both empty and fully loaded, with two packaging configurations. Nine vibration modes were identified: first roll, second roll, yaw, bounce, pitch, body torsion, body bending, and two lading modes. The effect of friction snubbing, gross weight, and amplitude of motion input at the rails was determined. Test results presented are a summary of modal frequencies, the deflections associated with each mode and the range of frequency variation.

Copyright © 1984 by ASME
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