Effect of Ice Sheet on Stochastic Response of Offshore Wind Turbine–Seawater–Soil Interaction Systems Subjected to Random Seismic Excitation
Publication: Journal of Cold Regions Engineering
Volume 25, Issue 3
Abstract
To investigate the effect of the presence of surrounding ice sheet on the stochastic response of offshore wind turbines subjected to random seismic excitation, this research uses a three-dimensional, numerical, finite-element model that includes viscous boundaries. The model of the ice–seawater–offshore wind turbine–soil interaction system uses the Lagrangian fluid (displacement-based) and solid-quadrilateral-isoparametric finite elements. Random seismic excitation from a filtered white-noise model and applied to each support point of the three-dimensional finite-element model of the coupled interaction system provides the experimental environment. A parametric study examines the effects of both the presence of and variation in mechanical and geometric properties of the surrounding ice sheet on the stochastic response of offshore wind turbines. The investigation also includes the effect of the wind turbine’s wall thickness in relation to the ice sheet on the stochastic seismic response of the coupled interaction system.
Get full access to this article
View all available purchase options and get full access to this article.
References
Ansys 7.1 [Computer software]. Ansys, Canonsburg, PA.
Barker, A., Timco, G., Gravesen, H., and Vølund, P. (2005). “Ice loading on Danish wind turbines. Part 1: Dynamic model tests.” Cold Reg. Sci. Technol., 41, 1–23.
Bathe, K. J. (1996). Finite element procedures in engineering analysis, Prentice-Hall, Englewood Cliffs, NJ.
Clough, R. W., and Penzien, J. (1993). Dynamics of structures, 2nd Ed., McGraw-Hill, Singapore.
Croteau, P. (1983). “Dynamic interaction between floating ice and offshore structures.” Rep. No. UCB/EERC-83/06, Earthquake Engineering Research Center, Univ. of California, Berkeley, CA.
Der Kiureghian, A., and Neuenhofer, A. (1991). “A response spectrum method for multiple-support seismic excitations.” Rep. No. UCB/EERC-91/08, Earthquake Engineering Research Center, College of Engineering, Univ. of California, Berkeley, CA.
Hacıefendioğlu, K., Bayraktar, A., and Bilici, Y. (2009). “The effects of ice cover on stochastic response of concrete gravity dams to multi-support seismic excitation.” Cold Reg. Sci. Technol., 55(3), 295–303.
Kanai, K. (1957). “Semi-empirical formula for the seismic characteristics of the ground.” Bull. Earthquake Res. Inst., Univ. Tokyo, 35, 309–325.
Karna, T. (1992). “A procedure for dynamic soil-structure-ice interaction.” Proc., 2nd Int. Offshore and Polar Engineering Conf., Vol. 2, ISOPE, San Francisco, 764–771.
Kühn, M., et al. (1998). Opti-OWECS Final Rep. Vol. 4: A typical design solution for an offshore wind energy conversion system, M. C. Ferguson, ed., Institute for Wind Energy, Delft, Netherlands.
Lin, Y. K. (1967). Probabilistic theory of structural dynamics, McGraw Hill, New York.
Lysmer, J., and Kuhlemeyer, R. L. (1969). “Finite dynamic model for infinite media.” J. Engrg. Mech. Div., 95(4), 859–878.
Manolis, G. D., and Koliopoulos, P. K. (2001). Stochastic structural dynamics in earthquake engineering, WIT, Southampton, UK.
Moslet, P. O. (2008). “Medium scale ice-structure interaction.” Cold Reg. Sci. Technol., 54(2), 143–152.
Mróz, A., Holnicki-Szulc, J., and Kärnä, T. (2008). “Mitigation of ice loading on off-shore wind turbines: Feasibility study of a semi-active solution.” Comput. Struct., 86(3–5), 217–226.
Pounder, E. R. (1965). The physics of ice, Pergamon, Oxford, England.
Sinha, N. K. (1989). “Elasticity of natural types of polycrystalline ice.” Cold Reg. Sci. Technol., 17(2), 127–135.
Sun, K. (1993). “Effects of ice layer on hydrodynamic pressure of structures.” J. Cold Reg. Eng., 7(3), 63–76.
Tajimi, H. (1960). “A statistical method for determining the maximum response of a building structure during an earthquake.” Proc., 2nd World Conf. on Earthquake Engineering, Tokyo and Kyoto, Japan.
Timco, G. W., and Frederking, R. M. W. (1996). “A review of sea ice density.” Cold Reg. Sci. Technol., 24, 1–6.
Wilson, E. L., and Khalvati, M. (1983). “Finite elements for the dynamic analysis of fluid-solid systems.” Int. J. Numer. Methods Eng., 19, 1657–1668.
Yamauchi, Y., and Kamesaki, K. (2000). “Experimental Study on Ice-Structure Interaction during Earthquakes.” Proc., 10th Int. Offshore and Polar Engineering Conf., Vol. 1, ISOPE, Seattle, 569–576.
Yamauchi, Y., Kamesaki, K., and Hyodo, M. (2002). “Numerical simulation on ice-structure interaction during earthquakes.” Proc., 12th Int. Offshore and Polar Engineering Conf., Vol. 1, ISOPE, Kitakyushu, Japan, 802–807.
Yang, C. Y. (1986). Random vibration of structures, Wiley, New York.
Information & Authors
Information
Published In
Journal of Cold Regions Engineering
Volume 25 • Issue 3 • September 2011
Pages: 115 - 132
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Sep 5, 2009
Accepted: Jan 21, 2011
Published online: Jan 24, 2011
Published in print: Sep 1, 2011
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.