Low-Tension Cable Dynamics: Numerical and Experimental Studies
Publication: Journal of Engineering Mechanics
Volume 125, Issue 3
Abstract
An efficient and robust numerical method is presented for the dynamic analysis of low-tension cables. The numerical solution strategy is based on finite-difference approximations of differential equations. In a scheme used by other researchers, known as the box scheme, the trapezoidal method is employed in both space and time domains. This scheme, however, gives rise to spurious high-frequency oscillations in cable tension response, as discovered in the research work reported herein. A modified box scheme is proposed to eliminate the problem. To improve computational efficiency, an iterative procedure is used to solve the resulting nonlinear simultaneous equations. A “free-fall” problem of cable dynamics involving low tension and large displacement motion is studied numerically. An experimental program is carried out to verify the accuracy of the numerical solution with regards to cable tension response.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 125 • Issue 3 • March 1999
Pages: 347 - 354
History
Received: Apr 6, 1998
Published online: Mar 1, 1999
Published in print: Mar 1999
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