采用改进尾流振子模型的柔性海洋立管的涡激振动响应分析
PREDICTION OF VORTEX-INDUCED VIBRATION OF FLEXIBLE RISER USING IMPROVED WAKE-OSCILLATOR MODEL
查看参考文献20篇
|
文摘
|
建立了柔性杆件在非均匀流作用下的涡激振动响应预测模型, 考虑了涡激振动锁频阶段流体附加质量的变化, 以及振动响应和来流简缩速度的非线性关系. 该模型通过经验公式结合迭代求解的方式, 计算方便、速度快, 避免了数值计算(CFD)的繁琐, 较为适合于海洋工程实际应用. 与试验和数值结果的比较表明采用该文提出的计算模型, 可以更合理、准确地给出结构涡激振动响应. 最后, 结合实际平台参数, 进行了柔性立管在非均匀流场的作用下的涡激振动响应分析, 并研究了立管的预张力、流场分布等参数的影响. 分析结果表明: 随着立管张力和流场分布的改变, 各阶模态锁频区域发生了变化, 从而改变了结构的总体响应 |
|
其他语种文摘
|
For the aim of improving the Wake-oscillator Model, an analytical model for vortex-induced vibration of flexible riser under non-uniform current is presented, in which the variation of added mass and the nonlinear relationship between amplitude response and the reduced velocity are considered.By means of empirical formula combining iteration computation, the improved analytical model can be conveniently implemented by computer code and has a simpler and faster computation process than CFD so as to be suitable to the application in practical engineering. This model is validated by comparing with experiments and numerical simulations. Our results show that the improved model can predict VIV(Vortex-Induced Vibration)response and lock-in range more accurately.At last, illustrative examples are given in which the amplitude of response of flexible riser experiencing VIV under action of non-uniform current is calculated and effects of riser tension and flow distribution along span of riser are explored.It is implied that with changes of tension and current distribution, lock-in domains of modes move along riser, thus the total responses of riser are synthesis of response for locked modes. |
|
来源
|
工程力学
,2010,27(5):240-246 【核心库】
|
|
关键词
|
涡激振动
;
尾流振子
;
附加质量
;
柔性立管
;
动响应
|
|
地址
|
1.
中国科学院力学研究所环境力学重点实验室, 北京, 100190
2.
北京航空航天大学航空科学与工程学院, 北京, 100191
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-4750 |
|
学科
|
建筑科学 |
|
基金
|
国家自然科学基金项目
;
国家863计划
;
中国科学院知识创新工程重要方向项目
|
|
文献收藏号
|
CSCD:3923927
|
参考文献 共
20
共1页
|
|
1.
Hartlen R T. Lift-oscillator model of vortex-induced vibration.
Journal of the Engineering Mechanics,1970,96(5):577-591
|
CSCD被引
45
次
|
|
|
|
|
2.
Iwan W D. The vortex-induced oscillation of non-uniform structure analysis.
Journal of Sound and Vibration,1981,79(2):291-301
|
CSCD被引
15
次
|
|
|
|
|
3.
Lyong G J. A prediction technique for vortex induced transverse response of marine risers and tethers.
Journal of Sound and Vibration,1986,11(3):467-487
|
CSCD被引
1
次
|
|
|
|
|
4.
Violette R. Computation of VIV of long structure using a wake oscillator model: Comparison with DNS and experiments.
Computers and Structure,2007,85:1134-1141
|
CSCD被引
34
次
|
|
|
|
|
5.
Sarpkaya T. A critical review of the intrinsic nature of vortex-induced vibration.
Journal of Fluids and Structures Mechanics,2004,46:389-447
|
CSCD被引
177
次
|
|
|
|
|
6.
Facchinetti M L. Coupling of structure and wave oscillators in VIV.
Journal of Fluids and structures,2004,19:123-140
|
CSCD被引
127
次
|
|
|
|
|
7.
潘志远. 细长海洋立管涡激振动预报模型.
船舶力学,2006,10(3):115-121
|
CSCD被引
2
次
|
|
|
|
|
8.
Mathelin L. VIV and waves under shear flow with a wake oscillator model.
European Journal of Mechanics B/Fluids,2005,24:478-490
|
CSCD被引
21
次
|
|
|
|
|
9.
Dixon M.
Application of CFD for VIV analysis of marine riser in projects.OTC18348,2006
|
CSCD被引
1
次
|
|
|
|
|
10.
Cunff C. Vortex-induced vibrations of risers: Theoretical, numerical and experimental investigation.
Oil & Gas Science and Technology-R,2002,57(1):59-69
|
CSCD被引
1
次
|
|
|
|
|
11.
Wang Yi. Study on the variation of added mass and its application to the calculation of amplitude response for a circular cylinder at lock-in.
China Ocean Engineering,2007,21(3):429-437
|
CSCD被引
3
次
|
|
|
|
|
12.
Williamson C. Vortex-induced vibration.
Annual Review of Fluid Mechanics,2004,36:413-455
|
CSCD被引
175
次
|
|
|
|
|
13.
Willden R. Numerical prediction of VIV on long flexible circular cylinders.
Journal of Fluids and Structures,2001,15:659-669
|
CSCD被引
1
次
|
|
|
|
|
14.
Vikestad K. Added mass and oscillation frequency for a circular cylinder subjected to vortex-induced vibrations and external disturbance.
Journal of Fluids and Structures,2000,14:1071-1088
|
CSCD被引
17
次
|
|
|
|
|
15.
Feng C C.
The measurement of vortex induced effects in flow past stationary and oscillating circular and d-section cylinders,1968
|
CSCD被引
22
次
|
|
|
|
|
16.
Brika D. Vortex-induced Vibrations of a long flexible circular cylinder.
Journal of Fluid Mechanics,2002,250:481-508
|
CSCD被引
1
次
|
|
|
|
|
17.
Foulhoux L. An engineering approach to characterize the look-in phenomenon generated by a current on a flexible column.
International Journal of Offshore and Polar Engineering,1994,4(3):231-233
|
CSCD被引
1
次
|
|
|
|
|
18.
Khalak A. Fluid forces and dynamics of a hydroelastic structure with very low mass and damping.
Journal of Fluids and Structure,1997,11:973-982
|
CSCD被引
44
次
|
|
|
|
|
19.
de Oliveria J.
Concrete hulls for tension leg platforms.OTC5636, Houston, Write Libranian,1988
|
CSCD被引
1
次
|
|
|
|
|
20.
王东耀. 在平台振荡条件下TLP张力腿的涡激非线性响应.
海洋学报,1998,20(5):119-128
|
CSCD被引
11
次
|
|
|
|
|
了解气象卫星更多信息，请访问