An Energy Method Determination of Large Cable Dynamics

[+] Author and Article Information
W. W. Carson

Pacific Northwest Forest and Range Experiment Station, Forest Service, U. S. Department of Agriculture, Seattle, Wash.

A. F. Emery

Department of Mechanical Engineering, University of Washington, Seattle, Wash.

J. Appl. Mech 43(2), 330-334 (Jun 01, 1976) (5 pages) doi:10.1115/1.3423834 History: Received January 01, 1975; Revised October 01, 1975; Online July 12, 2010


The free and forced vibrations of cable segments typical of a skyline logging cable system are analyzed by assuming that the vibrating cable segment maintains a catenary shape, and energy expressions are derived to implement the Lagrange equation of motion. The results of this method are compared with finite-difference results published in the senior author’s PhD thesis and the accuracy and usefulness of the approach applied to more complex cable configurations are discussed.

Copyright © 1976 by ASME
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