Vortex-Induced Dynamic Response Analysis for the Submerged Floating Tunnel System under the Effect of Currents
- 1 May 2013
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Waterway, Port, Coastal, and Ocean Engineering
- Vol. 139 (3), 183-189
- https://doi.org/10.1061/(asce)ww.1943-5460.0000175
Abstract
This paper describes an investigation of vortex-induced vibrations in a submerged floating tunnel (SFT) system. A theoretical model for coupled tube-cable vibration was developed to evaluate the SFT structural dynamic response to water current. The differential equations of the cable and tube coupled motion were derived using the Hamilton principle, and approximate numerical analyses were carried out to determine the coupling effect between cable transverse vibrations and tube vertical vibrations. The results showed that the maximum amplitudes of the cables were greater than the initial disturbance when self-induced resonance occurred. Self-induced resonance can be caused by the vortex-induced vibration of the cables when the flow velocity reaches a certain value. The change in the tube-specific gravity ratio had little effect on the maximum vibration amplitudes of the tube and cables. The vibrations of the tube and cables were more sensitive to changes in the lift coefficient than to the added ma...Keywords
This publication has 5 references indexed in Scilit:
- Experimental Investigation of Vortex-Induced Vibration in One and Two Dimensions With Variable Mass, Damping, and Reynolds NumberJournal of Fluids Engineering, 2009
- Dynamic response and fluid/structure interaction of submerged floating tunnelsComputers & Structures, 1999
- Chapter 10 submerged floating tunnels—a a concept whose time has arrivedTunnelling and Underground Space Technology, 1997
- The response of submerged tunnels to their environmentEngineering Structures, 1989
- Harmonically forced, finite amplitude vibration of a stringJournal of Sound and Vibration, 1977