Structural Engineering and Mechanics
Volume 25, Number 2, 2007, pages 219-237
DOI: 10.12989/sem.2007.25.2.219
Influence of cable loosening on nonlinear parametric vibrations of inclined cables
Qingxiong, WuKazuo Takahashi and Baochun Chen
Abstract
The effect of cable loosening on the nonlinear parametric vibrations of inclined cables is discussed in this paper. In order to overcome the small-sag limitation in calculating loosening for inclined cables, it is necessary to first derive equations of motion for an inclined cable. Using these equations and the finite difference method, the effect of cable loosening on the nonlinear parametric response of inclined cables under periodic support excitation is evaluated. A new technique that takes into account flexural rigidity and damping is proposed as a solution to solve the problem of divergence. The regions of inclined cables that undergo compression are also indicated.
Key Words
inclined cable; loosening; parametric vibration
Address
Qingxiong Wu; College of Civil Engineering, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian, China<br />Kazuo Takahashi; Department of Civil Engineering, Faculty of Engineering, Nagasaki University, 1-14, <br />Bunkyo-machi, Nagasaki, Japan<br />Baochun Chen; College of Civil Engineering, Fuzhou University, 523 Gongye Road, Fuzhou, Fujian, China