Knowledge Management System of Institue of Mechanics, CAS
| Nonlinear Dynamic Responses of the Tensioned Tether under Parametric Excitations | |
Zeng XH(曾晓辉) ; Xu WH(徐万海); Li XW(李宣文); Wu YX(吴应湘); Zeng XH
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| Source Publication | Proceedings Of The Eighteenth (2008) International Offshore And Polar Engineering Conference, Vol 1 |
| 2008 | |
| Pages | 78-83 |
| Conference Name | 18th International Offshore and Polar Engineering Conference (ISOPE 2008) |
| Conference Date | JUL 06-11, 2008 |
| Conference Place | Vancouver, CANADA |
| Abstract | The nonlinear dynamic responses of the tensioned tether subjected to combined surge and heave motions of floating platform are investigated using 2-D nonlinear beam model. It is shown that if the transverse-axial coupling of nonlinear beam model and the combined surge-heave motions of platform are considered, the governing equation is not Mathieu equation any more, it becomes nonlinear Hill equation. The Hill stability chart is obtained by using the Hill's infinite determinant and harmonic balance method. A parameter M, which is the function of tether length, the surge and heave amplitude of platform, is defined. The Hill stability chart is obviously different from Mathieu stability chart which is the specific case as M=0. Some case studies are performed by employing linear and nonlinear beam model respectively. It can be found that the results differences between nonlinear and linear model are apparent. |
| Keyword | Tensioned Tether Nonlinear Dynamic Responses Hill Equation Harmonic Balance Method Coupled Transverse Compliant Structure Marine Applications Axial Vibration Risers |
| WOS ID | WOS:000259888200013 |
| Indexed By | CPCI-S |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25388 |
| Collection | 力学所知识产出(1956-2008) 流固耦合系统力学重点实验室 |
| Corresponding Author | Zeng XH |
| Recommended Citation GB/T 7714 | Zeng XH,Xu WH,Li XW,et al. Nonlinear Dynamic Responses of the Tensioned Tether under Parametric Excitations[C]Proceedings Of The Eighteenth (2008) International Offshore And Polar Engineering Conference, Vol 1,2008:78-83. |
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