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波流联合作用下深水铰接塔平台的组合共振 被引量：1

Combination-harmonic Resonance of Articulated Tower Platform in the Deep Water
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摘要 研究了深水铰接塔平台在波流联合作用下的组合共振特性。将平台顶部工作单元简化为集中质量,塔柱和浮力仓简化为均匀直杆,建立了铰接塔平台运动分析模型。考虑海流和波浪对平台的作用,应用M orison公式计算铰接塔平台瞬时位置所受水动力,依据拉格朗日原理建立了铰接塔平台的强非线性运动方程。分别考虑波浪作用和波流联合作用,采用数值计算方法,计算了高400 m、塔柱直径15 m的浮力塔平台的多种组合共振响应。研究表明,波浪作用下平台将出现2vm+vn组合共振,波流联合作用下平台将出现vm+vn组合共振、2vm+vn组合共振。 The paper studied the nonlinear dynamics behaviors of articulated tower platform （ATP） in the deep water. The units on the top of ATP are simplified into one concentrated mass, and tower and buoyancy cabinet are simplified into uniform bar, the analysis mode of ATP is put forward. Considering current and wave loads, and hydro-dynamics acted on the ATP at the instantaneous position is calculated by Morison formula, the highly nonlinear motion equation is established by Lagrange principle. Considering wave loads and combined wave-current loads respectively, several kinds of combination-harmonic resonance of ATP which the diameter of tower is 15m and the height of tower is 400m were investigated by numerical method. The results shows that 2 Vm＋Vn combination-harmonic response will occur under wave loads, Vm＋Vn and 2 vm＋vn combination-harmonic response will occur under combined wave-current loads.
作者 谢文会 唐友刚 陈予恕
机构地区 天津大学建筑工程学院船舶与海洋工程系 天津大学机械工程学院力学系
出处 《海洋技术》 2005年第4期89-93,共5页 Ocean Technology
关键词 铰接塔平台 波流联合 非线性运动 组合共振 ATP combined wave-current nonlinear motion combination -harmonic resonance
分类号 P753 [交通运输工程—港口、海岸及近海工程]
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参考文献11

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同被引文献11

  • 1ADRENZIN R, BAR-AVI P, BENAROYA H. Dynamic response of compliant offshore structures review [J]. Journal of Aerospace Engi- neering, 1996, 9(4) : 114- 131.
  • 2KUCHNICHI S N, BENAROYA H. Coupled transverse and axial motion of a compliant structure in response to vortex-shedding loads [J]. Journal of Sound and Vibration, 2002, 257(5) :903 - 929.
  • 3YOSHIDA K, SUZUKI H, HINENO M. Active control of coupled dynamic response of TLP hull and tendon [C]//The 4th International Offshore and Polar Engineering Conference, ISOPE. Osaka, Japan. Vol. 1,1994: 98- 104.
  • 4AHMAD S K, AHMAD S. Active control of non-linearly coupled TLP response under wind and wave environments [J]. Journal of Com- puters and Structures, 1999, 72(6): 735- 747.
  • 5TERRO M J, MAHMOUD M S, ABEDL-ROHMAN M. Multi-loop feedback control of offshore steel jacket platforms [J]. Journal of Computers and Structures, 1999, 70(2) : 185 - 202.
  • 6SUHARDJO J, KAREEM A. Feedhack-feedforward control of offshore platforms under random waves [J]. Earthquake Engineering and Structural Dynamics, 2001, 30(2): 213 - 235.
  • 7LI H J, HU S J, JAKUBIAK C H. active vibration control for offshore platform subjected to wave loading [J]. Journal of Sound and Vi- bration, 2003, 263(4) : 709 - 724.
  • 8CAI G P, LIM C W. Active control of a flexible hub-beam system using optimal tracking control method [J]. International Journal of Mechanical Sciences, 2006, 48(10): 1150- 1162.
  • 9SOONG T T, DARGUSH G F. Passive Energy Dissipation Systems in Structural Engineering[M]. Chichester: John Wiley & Sons, 1997.
  • 10杨骁,徐小辉.部分水下弹性支承等截面梁柱的自由振动分析[J].工程力学,2009,26(7):60-65. 被引量：6

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海洋技术
2005年 第4期

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