| NONLINEAR DYNAMICS RESPONSE OF CASING PIPE UNDER COMBINED WAVE-CURRENT |
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| 引用本文： | TANG You-gang（唐友刚） GU Jia-yang（谷家扬） ZUO Jian-li（左建立） MIN Jian-qin（闵建琴）. NONLINEAR DYNAMICS RESPONSE OF CASING PIPE UNDER COMBINED WAVE-CURRENT[J]. 应用数学和力学(英文版), 2005, 26(8): 1040-1046. DOI: 10.1007/BF02466417 |
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| 作者姓名： | TANG You-gang（唐友刚） GU Jia-yang（谷家扬） ZUO Jian-li（左建立） MIN Jian-qin（闵建琴） |
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| 作者单位： | Department of Naval Architecture and Ocean Engineering，School of Civil Engineering，Tianjin University，Department of Naval Architecture and Ocean Engineering，School of Civil Engineering，Tianjin University，Department of Naval Architecture and Ocean Engineering，School of Civil Engineering，Tianjin University，Department of Naval Architecture and Ocean Engineering，School of Civil Engineering，Tianjin University Tianjin 300072，P.R.China，Tianjin 300072，P.R.China，Tianjin 300072，P.R.China，Tianjin 300072，P.R.China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China （No. 50279026） and the National 985 Engineering Project in China |
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| 摘 要： | IntroductionThe casing pipes are widely used for drilling wells in the ocean. As depth of waterreaches100m or more than100m, the relative stiffness of a casing pipe is reduced and thenatural frequency of a casing pipe may be close to shedding frequency of…
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| 关 键 词： | 线性动态响应 结构动力学 包装管 旋涡振动 合成响应 |
| 文章编号： | 0253-4827（2005）08-1040-07 |
| 收稿时间： | 2003-09-22 |
| 修稿时间： | 2004-11-23 |
Nonlinear dynamics response of casing pipe under combined wave-current |
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| Tang You-gang,Gu Jia-yang,Zuo Jian-li,Min Jian-qin. Nonlinear dynamics response of casing pipe under combined wave-current[J]. Applied Mathematics and Mechanics(English Edition), 2005, 26(8): 1040-1046. DOI: 10.1007/BF02466417 |
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| Authors: | Tang You-gang Gu Jia-yang Zuo Jian-li Min Jian-qin |
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| Affiliation: | Department of Naval Architecture and Ocean Engineering, School of Civil Engineering, Tianjin University, Tianjin 300072, P. R. China |
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| Abstract: | The vortex-induced nonlinear vibration of casing pipes in the deep water was studied considering the loads of current and combined wave-current. The vortex-induced vibration equation of a casing pipe was set up considering the beam mode and Morison's nonlinear fluid loads as well as the vortex-excited loads. The approach of calculating vortex-excited nonlinear vibration by Galerkin's method was proposed. The natural vibration frequencies and modes were obtained, and the response including primary resonance induced by current and the composite ressonance under combined wave-current for the 170 m long casing pipe in the 160 m depth of water were investigated. The results show that the dynamics response of casing pipe obviously increases, and the complicated response behaviors of casing pipe are described under combined wavecurrent. Project supported by the National Natural Science Foundation of China (No. 50279026) and the National 985 Engineering Project in China |
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| Keywords: | casing pipes in the deep water fluid dynamics combined wave-current vortex-excited vibration composite resonance |
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