Dynamic Stiffness Matrix of Sagging Cable
Publication: Journal of Engineering Mechanics
Volume 117, Issue 12
Abstract
The dynamic behavior of an extensible sagging cable is investigated. A dynamic stiffness matrix is presented whose coefficients are functions of the frequency of motion, and that is suitable for dynamic direct‐stiffness analysis of composed systems such as cable‐stayed bridges and guyed masts. The study is restricted to small displacements (linear theory) and considers motion within the vertical cable plane only. Viscous damping due to external fluid is taken into account. Trigonometrical solution functions with complex arguments are utilized, which implies a substantial simplification in the analysis of damped vibrations. By means of example calculations, stiffness functions are discussed and compared to the results of other authors. For tightly stretched inclined cables, utilization of the more accurate theory presented in this paper is indispensable.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 117 • Issue 12 • December 1991
Pages: 2815 - 2828
Copyright
Copyright © 1991 ASCE.
History
Published online: Dec 1, 1991
Published in print: Dec 1991
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