Limit Cycle Behavior of a Flexible Truck

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

Department of Mechanical Engineering, Villanova University, Villanova, PA

J. E. Molyneux

Department of Mechanical and Civil Engineering, Widener University, Chester, PA

J. Appl. Mech 54(4), 930-934 (Dec 01, 1987) (5 pages) doi:10.1115/1.3173141 History: Received November 05, 1985; Revised March 15, 1987; Online July 21, 2009


We calculate the variation in critical speed of a flexible truck as a function of limit cycle amplitude and truck parameters (i.e., shear and bending stiffnesses, and truck geometry), by means of a perturbation procedure. We find that the creep force nonlinearity is dominant, and that it can cause the nonlinear critical speed to be either lower or higher than the linear critical speed, depending on the values of the two stiffnesses.

Copyright © 1987 by ASME
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