A great deal of works has been developed on the spar vortex-induced motion (VIM) issue. There are, however, very few published works concerning VIM of monocolumn platforms, partly due to the fact that the concept is fairly recent and the first unit was only installed last year. In this context, a meticulous study on VIM for this type of platform concept is presented here. Model test experiments were performed to check the influence of many factors on VIM, such as different headings, wave/current coexistence, different drafts, suppression elements, and the presence of risers. The results of the experiments presented here are motion amplitudes in both in-line and transverse directions, forces and added-mass coefficients, ratios of actual oscillation and natural periods, and motions in the XY plane. This is, therefore, a very extensive and important data set for comparisons and validations of theoretical and numerical models for VIM prediction.

Issue Section:
Ocean Engineering
Keywords:
force, structural engineering, vortices, vortex-induced motion (VIM), monocolumn platform, model tests
Topics:
Damping, Drag (Fluid dynamics), Mooring, Pipeline risers, Plates (structures), Risers (Casting), Vortices, Waves, Flow (Dynamics), Fluid-dynamic forces, Oscillations
1.
Gonçalves
,
R. T.
,
Rosetti
,
G. F.
,
Fujarra
,
A. L. C.
,
Nishimoto
,
K.
, and
Ferreira
,
M. D.
, 2009, “
Relevant Aspects in Vortex-Induced Motions of Spar and Monocolumn Platforms: A Brief Overview
,”
Proceedings of the 20th International Congress of Mechanical Engineering
, Paper No. COB09-0581.
2.
Cueva
,
M.
,
Fujarra
,
A. L. C.
,
Nishimoto
,
K.
,
Quadrante
,
L.
, and
Costa
,
A.
, 2006, “
Vortex Induced Motion: Model Testing of a Monocolumn Floater
,”
Proceedings of the 25th International Conference on Offshore Mechanics and Arctic Engineering
, Paper No. OMAE2006-92167.
3.
Gonçalves
,
R. T.
,
Fujarra
,
A. L. C.
,
Rosetti
,
G. F.
,
Nishimoto
,
K.
,
Cueva
,
M.
, and
Siqueira
,
E. F. N.
, 2009, “
Vortex-Induced Motion of a Monocolumn Platform: New Analysis and a Comparative Study
,”
Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering
, Paper No. OMAE2009-79378.
4.
Matsumoto
,
F. T.
,
Gonçalves
,
R. T.
,
Malta
,
E. B.
,
Medeiros
,
H. F.
,
Nishimoto
,
K.
, and
Masetti
,
I. Q.
, 2008, “
The Influence at Vertical First Order Motions Using a Appendages in a Monocolumn Platform
,”
Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering
, Paper No. OMAE2008-57410.
5.
Allen
,
D.
, and
Henning
,
D.
, 2001, “
Surface Roughness Effects on Vortex-Induced Vibration of Cylindrical Structures at Critical and Supercritical Reynolds Numbers
,”
Proceedings of the Offshore Technology Conference
, Paper No. OTC2001-13302.
6.
van Dijk
,
R. R.
,
Magee
,
A.
,
Perryman
,
S.
, and
Gebara
,
J.
, 2003, “
Model Test Experience on Vortex Induced Vibrations of Truss Spars
,”
Proceedings of the Offshore Technology Conference
, Paper No. OTC2003-15242.
7.
Yung
,
T. W.
,
Sandström
,
R. E.
,
Slocum
,
S. T.
, and
Ding
,
J. Z.
, 2003, “
Advances in Prediction of VIV on Spar Hulls
,”
Deep Offshore Technology Conference
, Marseilles, France, pp.
12
–
21
.
8.
Irani
,
M.
, and
Finn
,
L.
, 2004, “
Model Testing for Vortex Induced Motions of Spar Platforms
,”
Proceedings of the 23rd International Conference on Offshore Mechanics and Arctic Engineering
, Paper No. OMAE2004-51315.
9.
Finnigan
,
T.
, and
Roddier
,
D.
, 2007, “
Spar VIM Model Tests at Supercritical Reynolds Numbers
,”
Proceedings of the 26th International Conference on Offshore Mechanics and Arctic Engineering
, Paper No. OMAE2007-29160.
10.
Huang
,
K.
,
Chen
,
X.
, and
Kwan
,
C. T.
, 2003, “
The Impact of Vortex-Induced Motions on Mooring System Design for Spar-Based Installations
,”
Proceedings of the Offshore Technology Conference
, Paper No. OTC2003-15245.
11.
Roddier
,
D.
,
Finnigan
,
T.
, and
Liapis
,
S.
, 2009, “
Influence of the Reynolds Number on Spar Vortex Induced Motions (VIM): Multiple Scale Model Test Comparisons
,”
Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering
, Paper No. OMAE2009-79991.
12.
Finn
,
L. D.
,
Maher
,
J. V.
, and
Gupta
,
H.
, 2003, “
The Cell Spar and Vortex Induced Vibrations
,”
Proceedings of the Offshore Technology Conference
, Paper No. OTC2003-15244.
13.
Irani
,
M.
, and
Finn
,
L.
, 2005, “
Improved Strake Design for Vortex Induced Motions of Spar Platforms
,”
Proceedings of the 24th International Conference on Offshore Mechanics and Arctic Engineering
, Paper No. OMAE2005-67384.
14.
Finningan
,
T.
,
Irani
,
M.
, and
van Dijk
,
R. R.
, 2005, “
Truss Spar VIM in Waves and Currents
,”
Proceedings of the 24th International Conference on Offshore Mechanics and Arctic Engineering
, Paper No. OMAE2005-67054.
15.
Yung
,
T. W.
,
Sandström
,
R. E.
,
Slocum
,
S. T.
,
Ding
,
J. Z.
, and
Lokken
,
R. T.
, 2004, “
Advancement of Spar VIV Prediction
,”
Proceedings of the Offshore Technology Conference
, Paper No. OTC2003-1634.
16.
Fujarra
,
A.
,
Pesce
,
C.
,
Nishimoto
,
K.
,
Cueva
,
M.
, and
Faria
,
F.
, 2007, “
Non-Stationary VIM of Two Mono-Column Oil Production Platforms
,”
Proceedings of the Fifth Conference on Bluff Body Wakes and Vortex-Induced Vibrations—BBVIV
, Costa do Sauipe, Bahia, Brazil, pp.
12
–
15
.
17.
Sarpkaya
,
T.
, 2004, “
A Critical Review of Intrinsic Nature of Vortex-Induced Vibrations
,”
J. Fluids Struct.
0889-9746,
19
, pp.
389
–
447
.
Crossref
Search ADS
 
18.
Vikestad
,
K.
,
Vandiver
,
J. K.
, and
Larsen
,
C. M.
, 2000, “
Added Mass and Oscillation Frequency for a Circular Cylinder Subjected to Vortex-Induced Vibrations and External Disturbance
,”
J. Fluids Struct.
0889-9746,
14
, pp.
1071
–
1088
.
Crossref
Search ADS
 
19.
Khalak
,
A.
, and
Williamson
,
C. H. K.
, 1999, “
Motions, Forces and Mode Transitions in Vortex-Induced Vibrations at Low Mass-Damping
,”
J. Fluids Struct.
0889-9746,
13
, pp.
813
–
851
.
Crossref
Search ADS
 
20.
Fujarra
,
A. L. C.
, and
Pesce
,
C. P.
, 2002, “
Added Mass of an Elastically Mounted Rigid Cylinder in Water Subjected to Vortex-Induced Vibrations
,”
Proceedings of the 21st International Conference on Offshore Mechanics and Arctic Engineering
, Oslo, Norway, Paper No. OMAE2002-28375.
21.
Jauvtis
,
N.
, and
Williamson
,
C. H. K.
, 2003, “
Vortex-Induced Vibration of a Cylinder With Two Degrees of Freedom
,”
J. Fluids Struct.
0889-9746,
17
, pp.
1035
–
1042
.
Crossref
Search ADS
 
22.
Williamson
,
C. H. K.
, and
Jauvtis
,
N.
, 2004, “
A High-Amplitude 2T Mode of Vortex-Induced Vibration for a Light Body in XY Motion
,”
Eur. J. Mech. B/Fluids
0997-7546,
23
, pp.
107
–
114
.
Crossref
Search ADS
 
23.
Stappenbelt
,
B.
, and
Lalji
,
F.
, 2008, “
Vortex-Induced Vibration Super-Upper Response Branch Boundaries
,”
Int. J. Offshore Polar Eng.
1053-5381,
18
, pp.
99
–
105
.
24.
Blevins
,
R. D.
, and
Coughran
,
C. S.
, 2009, “
Experimental Investigation of Vortex-Induced Vibration in One and Two Dimensions With Variable Mass, Damping, and Reynolds Number
,”
ASME J. Fluids Eng.
0098-2202,
131
(
10
), p.
101202
.
Crossref
Search ADS
 
25.
Gopalkrishnan
,
R.
, 1993, “
Vortex Induced Forces on Oscillating Bluff Cylinders
,” Ph.D. thesis, MIT, Cambridge, MA.
26.
Chakrabarti
,
S. K.
, 1994,
Offshore Structure Modeling
,
World Scientific
,
Singapore
.
27.
Sagrilo
,
L. V. S.
,
Siqueira
,
M. Q.
,
Lacerda
,
T. A. G.
,
Ellwanger
,
G. B.
,
Lima
,
E. C. P.
, and
Siqueira
,
E. F. N.
, 2009, “
VIM and Wave-Frequency Fatigue Damage Analysis for SCRs Connected to Monocolumn Platforms
,”
Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering
, Paper No. OMAE2009-79431.
28.
Lacerda
,
T. A. G.
,
Ellwanger
,
G. B.
,
Siqueira
,
M. Q.
, and
Siqueira
,
E. F. N.
, 2008, “
Time Domain Methodology for Vortex-Induced Motion Analysis in Monocolumn Platform
,”
Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering
, Paper No. OMAE2009-79806.
29.
Rosetti
,
G. F.
,
Gonçalves
,
R. T.
,
Fujarra
,
A. L. C.
,
Nishimoto
,
K.
, and
Ferreira
,
M. D.
, 2009, “
A Phenomenological Model for Vortex-Induced Motions of the Monocolumn Platform and Comparison With Experiments
,”
Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering
, Paper No. OMAE2009-79431.
30.
Rosetti
,
G. F.
,
Gonçalves
,
R. T.
,
Fujarra
,
A. L. C.
,
Nishimoto
,
K.
, and
Ferreira
,
M. D.
, 2009, “
Parametric Analysis of a Phenomenological Model for Vortex-induced Motions of Monocolumn Platforms
,”
Proceedings of the 20th International Congress of Mechanical Engineering
, Paper No. COB09-1097.
31.
van Dijk
,
R. R.
,
Voogt
,
A.
,
Fourchy
,
P.
, and
Mirza
,
S.
, 2003, “
The Effect of Mooring System and Shared Currents on Vortex Induced Motions of Truss Spars
,”
Proceedings of the 22nd International Conference on Offshore Mechanics and Arctic Engineering
, Paper No. OMAE2003-37151.
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