Dynamic Analysis of Long-Travel, High-Efficiency Shock Absorbers in Freight Cars

[+] Author and Article Information
F. Freudenstein

Columbia University, New York, N. Y.

J. Eng. Ind 92(3), 581-588 (Aug 01, 1970) (8 pages) doi:10.1115/1.3427816 History: Received January 07, 1970; Online July 15, 2010


A dynamic analysis is presented relating the principal design parameters of a constant force type, dissipative shock absorber to the forces experienced by a resilient lading. The analysis, which correlates the effects of coupler force, lading force, cushion travel, closure time, impact speed, and friction, represents an application of classical mechanics to a dynamical system with sliding friction (Coulomb damping). Although a lumped-parameter analysis forms the basis of the derivation, a procedure is described which takes into account the mass- and compliance distribution within the lading.

Copyright © 1970 by ASME
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