The long-term probability distributions of a spar-type and a semisubmersible-type offshore floating wind turbine response are calculated for surge, heave, and pitch motions along with the side-to-side, fore–aft, and yaw tower base bending moments. The transfer functions for surge, heave, and pitch motions for both spar-type and semisubmersible-type floaters are obtained using the fast code and the results are also compared with the results obtained in an experimental study. The long-term predictions of the most probable maximum values of motion amplitudes are used for design purposes, so as to guarantee the safety of the floating wind turbines against overturning in high waves and wind speed. The long-term distribution is carried out using North Atlantic wave data and the short-term floating wind turbine responses are represented using Rayleigh distributions. The transfer functions are used in the procedure to calculate the variances of the short-term responses. The results obtained for both spar-type and semisubmersible-type offshore floating wind turbine are compared, and the study will be helpful in the assessments of the long-term availability and economic performance of the spar-type and semisubmersible-type offshore floating wind turbine.
References
1.
Guedes Soares
, C.
, 1990
, “Effect of Spectral Shape Uncertainty in the Short-Term Wave Induced Ship Response
,” Appl. Ocean Res.
, 12
(2
), pp. 54
–69
.2.
Guedes Soares
, C.
, 1990
, “Comparison of Measurements and Calculations of Wave Induced Vertical Bending Moments in Ship Models
,” Int. Shipbuild. Prog.
, 37
(412
), pp. 353
–374
.3.
Guedes Soares
, C.
, 1991
, “Effect of Transfer Function Uncertainty in Short-Term Ship Response
,” Ocean Eng.
, 18
(4
), pp. 329
–362
.4.
Guedes Soares
, C.
, and Moan
, T.
, 1991
, “Model Uncertainty in the Long-Term Distribution of Wave Induced Bending Moments for Fatigue Design of Ship Structures
,” Mar. Struct.
, 4
(4
), pp. 295
–315
.5.
Guedes Soares
, C.
, and Trovao
, M. F. S.
, 1992
, “Sensitivity of Ship Motion Predictions to Wave Climate Descriptions
,” Int. Shipbuild. Prog.
, 39
(418
), pp. 135
–155
.6.
Guedes Soares
, C.
, 1995
, “Effect of Wave Directionality on Long-Term Wave Induced Load Effects in Ship
,” J. Ship Res.
, 39
(2
), pp. 150
–159
.7.
Guedes Soares
, C.
, and Schellin
, T. E.
, 1998
, “Non-Linear Effects on Long-Term Distributions of Wave-Induced Loads for Tankers
,” ASME J. Offshore Mech. Arct. Eng.
, 120
(2
), pp. 65
–70
.8.
Teixeira
, A. P.
, and Guedes Soares
, C.
, 2009
, “Reliability Analysis of a Tanker Subjected to Combined Sea States
,” Probab. Eng. Mech.
, 24
(4
), pp. 493
–503
.9.
Lucas
, C.
, Boukhanovsky
, A.
, and Guedes Soares
, C.
, 2011
, “Modeling the Climatic Variability of Directional Wave Spectra
,” Ocean Eng.
, 38
(11–12
), pp. 1283
–1290
.10.
Tong
, K. C.
, 1998
, “Technical and Economic Aspects of a Floating Offshore Wind Farm
,” J. Wind Eng. Ind. Aerodyn.
, 74–76
, pp. 399
–410
.11.
Nielsen
, F. G.
, Hanson
, T. D.
, and Skaare
, B.
, 2006
, “Integrated Dynamic Analysis of Floating Offshore Wind Turbines
,” ASME
Paper No. OMAE2006-92291.12.
Suzuki
, H.
, and Sato
, A.
, 2007
, “Load on Turbine Blade Induced by Motion of Floating Platform and Design Requirement for the Platform
,” ASME
Paper No. OMAE2007-29500.13.
Matsukuma
, H.
, and Utsunomiya
, T.
, 2008
, “Motion Analysis of a Floating Offshore Wind Turbine Considering Rotor Rotation
,” IES J., Part A
, 1
(4
), pp. 268
–279
.14.
Utsunomiya
, T.
, Sato
, T.
, Matsukuma
, H.
, and Yago
, K.
, 2009
, “Experimental Validation for Motion of a Spar-Type Floating Offshore Wind Turbine Using 1/22.5 Scale Model
,” ASME
Paper No. OMAE2009-79695.15.
Jonkman
, J.
, and Musial
, W.
, 2010
, “Offshore Code Comparison Collaboration (OC3) for IEA Wind Task 23, Offshore Wind Technology and Deployment
,” National Renewable Energy Laboratory, Technical Report No. NREL/TP-5000-48191.16.
Karimirad
, M.
, and Moan
, T.
, 2010
, “Extreme Structural Dynamic Response of a Spar Type Wind Turbine
,” ASME
Paper No. OMAE2010-20044.17.
Myhr
, A.
, Maus
, K. J.
, and Nygaard
, T. A.
, 2011
, “Experimental and Computational Comparisons of the OC3‐HYWIND and Tension‐Leg‐Buoy (TLB) Floating Wind Turbine Conceptual Designs
,” International Conference on Offshore and Polar Engineering
, Maui, HI, June 19–24, pp. 353
–360
.18.
Kallesøe
, B. S.
, and Hansen
, A. M.
, 2011
, “Dynamic Mooring Line Modeling in Hydro‐Aero‐Elastic Wind Turbine Simulations
,” International Conference on Offshore and Polar Engineering
, Maui, HI, June 19–24, pp. 375
–382
.19.
Roddier
, D.
, Cermelli
, C.
, and Weinstein
, A.
, 2009
, “Windfloat: A Floating Foundation for Offshore Wind Turbines: Part I: Design Basis and Qualification Process
,” ASME
Paper No. OMAE2009-79229.20.
Cermelli
, C.
, Roddier
, D.
, and Aubault
, A.
, 2009
, “Windfloat: A Floating Foundation for Offshore Wind Turbines: Part II: Hydrodynamics Analysis
,” ASME
Paper No. OMAE2009-79231.21.
Aubault
, A.
, Cermelli
, C.
, and Roddier
, D.
, 2009
, “Windfloat: A Floating Foundation for Offshore Wind Turbines; Part III: Structural Analysis
,” ASME
Paper No. OMAE2009-79232.22.
Roddier
, D.
, Cermelli
, C.
, Aubault
, A.
, and Weinstein
, A.
, 2010
, “WindFloat: A Floating Foundation for Offshore Wind Turbines
,” J. Renewable Sustain. Energy
, 2
(3
), p. 033104
.23.
Roddier
, D.
, Peiffer
, A.
, Aubault
, A.
, and Weinstein
, J.
, 2011
, “A Generic 5 MW Windfloat for Numerical Tool Validation and Comparison Against a Generic Spar
,” ASME
Paper No. OMAE2011-50278.24.
Robertson
, A. N.
, and Jonkman
, J. M.
, 2011
, “Loads Analysis of Several Offshore Floating Wind Turbine Concepts
,” International Conference on Offshore and Polar Engineering
, Maui, HI, Jun. 19–24, pp. 443
–450
.25.
Bagbanci
, H.
, Karmakar
, D.
, and Guedes Soares
, C.
, 2011
, “Dynamic Analysis of Spar Type Floating Offshore Wind Turbine
,” International Conference on Coastal and Maritime Mediterranean
, Tangier, Morocco, pp. 407
–412
.26.
Bagbanci
, H.
, Karmakar
, D.
, and Guedes Soares
, C.
, 2011
, “Comparative Study on the Coupled Dynamic Analysis of Spar Type and Barge Type Floating Wind Turbine
,” International Conference on Naval Architecture and Maritime
, Istanbul, Turkey, pp. 653
–662
.27.
Bagbanci
, H.
, Karmakar
, D.
, and Guedes Soares
, C.
, 2012
, “Review of Offshore Floating Wind Turbines
,” Maritime Engineering and Technology
, C.
Guedes Soares
, Y.
Garbatov
, S.
Sutulo
, and T. A.
Santos
, eds., Taylor & Francis Group
, London
, pp. 553
–562
.28.
Fukuda
, J.
, 1967
, “Theoretical Determination of Design Wave Bending Moments
,” Jpn. Shipbuild. Mar. Eng.
, 2
(3
), pp. 12
–22
.29.
Longuet-Higgins
, M. S.
, 1951
, “The Statistical Distribution of the Height of Sea Waves
,” J. Mar. Res.
, 11
, pp. 245
–266
.30.
Longuet-Higgins
, M. S.
, 1980
, “On the Distribution of the Heights of Sea Waves: Some Effects of Non-Linearities and Finite Band Width
,” J. Geophys. Res.
, 85
(C3
), pp. 1519
–1523
.31.
Warnsinck
, W. H.
, 1964
, “Environmental Conditions
,” Report of the Committee I.1, 2nd International Ship Structure Congress, Oslo, Norway, Report No. 1.32.
Hogben
, N.
, 1976
, “Environmental Conditions
,” Report of the Committee I.1, 6th International Ship Structure Congress, Boston, MA, Report No. I.1.33.
Guedes Soares
, C.
, 1984
, “Representation of Double-Peaked Sea Wave Spectra
,” Ocean Eng.
, 11
(2
), pp. 185
–207
.34.
IACS Rec
, 2000
, “Standard Wave Data 1
,” Report No. 34.35.
Jonkman
, J.
, Butterfield
, S.
, Musial
, W.
, and Scott
, G.
, 2009
, “Definition of a 5-MW Reference Wind Turbine for Offshore System Development
,” National Renewable Energy Laboratory, Technical Report No. NREL/TP-500-38060.36.
Jonkman
, J. M.
, 2010
, “Definition of the Floating System for Phase IV of OC3
,” National Renewable Energy Laboratory, Technical Report No. NREL/TP-500-47535.37.
Jonkman
, J. M.
, 2009
, “Dynamics of Offshore Floating Wind Turbines—Model Development and Verification
,” Wind Energy
, 12
(5
), pp. 459
–492
.Copyright © 2015 by ASME
You do not currently have access to this content.
