Comparative Test of Characteristics of Vortex-Induced Motion and Galloping of Classic Spar Platform

doi:10.16183/j.cnki.jsjtu.2020.206

Abstract

Abstract:

In order to study the characteristics of vortex-induced motion and galloping of the classic Spar platform, a model test with a mooring system is conducted in basin. The sway motion characteristics of the Spar platform at different current velocities are analyzed. By comparing the results in currents, waves, and wave-current coupled conditions, the coupling effects of current and wave on vortex-induced motion and galloping of the Spar platform are also studied. The results show that galloping is induced by the currents with high reduced velocities. Compared with the vortex-induced motion, the galloping phenomenon has a longer period, larger amplitude, and randomness. The coupling of current and wave would not change the mode of flow-induced motion, but it significantly affects the motion amplitude.

Key words: Spar platform, vortex-induced motion, galloping, model test, hydrodynamics of marine engineering

CLC Number:

P751

ZHANG Chenya, KOU Yufeng, LÜ Haining, XIAO Longfei, LIU Mingyue. Comparative Test of Characteristics of Vortex-Induced Motion and Galloping of Classic Spar Platform[J]. Journal of Shanghai Jiao Tong University, 2021, 55(5): 497-504.

Figures/Tables 13

Fig.1

Tab.1

Fig.2

Fig.3

Tab.2

Fig.4

Fig.5

Tab.3

Response amplitudes of Spar platform in currents

U_r	横荡		纵荡
U_r	$A D max$	$A D nom$	$A D max$	$A D nom$
9.3	0.0948	0.0490	0.0749	0.0291
22.8	0.4914	0.2526	0.2535	0.1224
25.6	0.5109	0.2783	0.2089	0.0899

Tab.3

Fig.6

Tab.4

Sway amplitudes in 1-year current, wave, and wave-current coupled condition

工况	横荡
工况	$A D max$	$A D nom$
流(V_c=0.73 m/s)	0.0948	0.0490
波浪(H_s=8.7 m)	0.0760	0.0365
波流耦合(H_s=8.7 m, V_c=0.73 m/s)	0.2071	0.1124

Tab.4

Fig.7

Tab.5

Sway amplitudes in current, wave, and wave-current coupled condition of rough sea state

工况		横荡
工况		$A D max$	$A D nom$
百年一遇	流(V_c=1.79 m/s)	0.4914	0.2526
	波浪(H_s=15 m)	0.1156	0.0568
	波流耦合(H_s=15 m, V_c=1.79 m/s)	1.1292	0.6111
千年一遇	流(V_c=2.01 m/s)	0.5109	0.2783
	波浪(H_s=18 m)	0.1518	0.0608
	波流耦合(H_s=18 m, V_c=2.01 m/s)	1.5295	0.6089

Tab.5

Fig.8

References 14

[1]	FUJARRA A L C, ROSETTI G F, DE WILDE J, et al. State-of-art on Vortex-Induced Motion: A comprehensive survey after more than one decade of experimental investigation [C]//Proceedings of the 31th International Conference on Offshore Mechanics and Arctic Engineering. Rio de Janeiro: OMAE, 2012: 561-582.
[2]	GAO W, ZHU W, DONG L, et al. A study of Spar-FPSO VIM phenomenon and its influence to mooring system [C]//Proceedings of the 21th International Offshore and Polar Engineering Conference. Rhodes: ISOPE, 2016: 1067-1074.
[3]	孙洪源, 黄维平, 李磊, 等. 基于实验的浮式圆柱体涡激运动研究[J]. 振动与冲击, 2017, 36(3):93-97.
	SUN Hongyuan, HUANG Weiping, LI Lei, et al. Tests for vortex induced motions of a floating cylinder[J]. Journal of Vibration and Shock, 2017, 36(3):93-97.
[4]	何佳伟, 赵伟文, 万德成. 带螺旋侧板的Spar平台涡激运动数值模拟[J]. 中国舰船研究, 2019, 14(4):74-84.
	HE Jiawei, ZHAO Weiwen, WAN Decheng. Numerical simulation of vertex induced motion for Spar platform with helical strakes[J]. Chinese Journal of Ship Research, 2019, 14(4):74-84.
[5]	PARK Y C, ANTONY A, MOIDEEN H, et al. Gulfstar-VIM and mooring chain fatigue [C]//Proceedings of the Annual Offshore Technology Conference. Houston: Offshore Technology Conference, 2015: 4577-4620.
[6]	FINNIGAN T, IRANI M, VAN DIJK R. Truss Spar VIM in waves and currents [C]//Proceedings of the 24th International Conference on Offshore Mechanics and Arctic Engineering. Halkidiki: OMAE, 2005: 475-482.
[7]	GONÇALVES R T, FUJARRA A L C, ROSETTI G F, et al. Mitigation of vortex-induced motion (VIM) on a monocolumn platform: Forces and movements[J]. Journal of Offshore Mechanics and Arctic Engineering, 2010, 132(4):041102. doi: 10.1115/1.4001440 URL
[8]	IRANI M, PERRYMAN S, BREWER J, et al. Vortex induced motions of the Horn Mountain Truss Spar [C]//Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering. Estoril: OMAE, 2008: 967-973.
[9]	BLEVINS R D. Flow-induced vibration[M]. New York: Van Nostrand Reinhold, 1990.
[10]	WAALS O J, PHADKE A C, BULTEMA S. Flow induced motions of multi column floaters [C]//Proceedings of the 26th International Conference on Offshore Mechanics and Arctic Engineering. San Diego: OMAE, 2007: 669-678.
[11]	GONÇALVES R T, GAMBARINE D M, MOMENTI A M, et al. Experimental study on flow-induced vibration of floating squared section cylinders with low aspect ratio: Part II—Effects of rounded edges [C]//Proceedings of the 35th International Conference on Ocean, Offshore and Arctic Engineering. Busan: OMAE, 2016: 54813.
[12]	LIANG S P, WANG J S, HU Z M. VIV and galloping response of a circular cylinder with rigid detached splitter plates[J]. Ocean Engineering, 2018, 162:176-186. doi: 10.1016/j.oceaneng.2018.05.026 URL
[13]	LAMAS F, RAMIREZ M A M, FERNANDES A C. Yaw galloping of a TLWP platform under high speed currents by analytical methods and its comparison with experimental results [C]//Proceedings of 36th International Conference on Ocean, Offshore and Arctic Engineering. Trondheim: OMAE, 2017: 61909.
[14]	董艳秋. 深海采油平台波浪载荷及响应[M]. 天津: 天津大学出版社, 2005: 76.
	DONG Yanqiu. Wave loads and response of the oil-extraction platform in deep ocean[M]. Tianjin: Tianjin Univerity Press, 2005: 76.

参数	实际值	模型值
直径/m	34.1	0.568
中央井尺寸/m	12.8	0.213
螺旋侧板高度/m	4.44	0.074
吃水/m	198.1	3.302
干舷/m	16.8	0.280
立柱总高度/m	214.9	3.582
总排水量/t	174598	0.7886
垂向重心高度/m	87.78	1.463
横摇惯性半径/m	75.1	1.252
纵摇惯性半径/m	75.2	1.253
首摇惯性半径/m	16.8	0.280

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