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Dynamic stiffness matrix of sagging cable
Citation Link: https://doi.org/10.15480/882.301
Publikationstyp
Journal Article
Publikationsdatum
1991
Sprache
English
Author
Institut
Enthalten in
Volume
117
Issue
12
Start Page
2815
End Page
2829
Citation
Journal of engineering mechanics 117(1991) 12, 2815-2829
Publisher DOI
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.
DDC Class
620: Ingenieurwissenschaften
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