Asymptotic Theory of Freight Car Hunting

[+] Author and Article Information
A. M. Whitman

Railroad Dynamics, Inc., Ardmore, Pa.

J. Dyn. Sys., Meas., Control 102(3), 190-193 (Sep 01, 1980) (4 pages) doi:10.1115/1.3139633 History: Received July 09, 1980; Online July 21, 2009


A simple formula is derived for the hunting speed of a freight car from an 8 degree of freedom linear model using asymptotic techniques. A comparison is made between the approximation and exact (numerical) solutions. The two agree within 10 percent for parameter values typical of present designs.

Copyright © 1980 by ASME
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