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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.10
- 수록면
- 347 - 359 (13page)
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초록· 키워드
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This study aims to evaluate the dynamic responses of the jacket-type offshore wind turbine using FAST software (Fatigue, Aerodynamics, Structures, and Turbulence). A systematic series of simulation cases of a 5 MW jacket-type offshore wind turbine, including wind-only, wave-only, wind & wave load cases are conducted. The dynamic responses of the wind turbine structure are obtained, including the structure displacement, rotor speed, thrust force, nacelle acceleration, bending moment at the tower bottom, and shear force on the jacket leg. The calculated time-domain results are transformed to frequency domain results using FFT and the environmental load with more impact on each dynamic response is identified. It is confirmed that the dynamic displacements of the wind turbine are dominant in the wave frequency under the incident wave alone condition, and the rotor thrust, nacelle acceleration, and bending moment at the bottom of the tower exhibit high responses in the natural frequency band of the wind turbine. In the wind only condition, all responses except the vertical displacement of the wind turbine are dominant at three times the rotor rotation frequency (considering the number of blades) generated by the wind. In a combined external force with wind and waves, it was observed that the horizontal displacement is dominant by the wind load. Additionally, the bending moment on the tower base is highly affected by the wind. The shear force of the jacket leg is basically influenced by the wave loads, but it can be affected by both the wind and wave loads especially under the turbulent wind and irregular wave conditions.
목차
ABSTRACT
1. Introduction
2. Fixed Offshore Wind Turbine
3. Calculation Results and Analysis
4. Conclusions
References
참고문헌 (31)
참고문헌 신청
Agarwal, P., & Manuel, L. (2008). Extreme Loads for an Offshore Wind Turbine Using Statistical Extrapolation from Limited Field Data. Wind Energy, 11(6), 673–684. https://doi.org/10.1002/we.301
Burton, T., Sharpe, D., Jenkins, N., & Bossanyi, E. (2001). Wind Energy Handbook. New York: Wiley.
Damiani, R., Jonkman, J., & Hayman, G. (2015). SubDyn User's Guide and Theory Manual (Technicla Report NREL/TP-5000-63062). USA: National Renewable Energy Laboratory. https://doi.org/10.2172/1225918
de Vries, W., Vemula, N.K., Passon, P., Fischer, T., Kaufer, D., Matha, D., & Vorpahl, F. (2011). Final Report WP4.2: Support Structure Concepts for Deep Water (UpWind_WP4_D4.2.8).
Faltinsen, O. (1993). Sea Loads on Slips and Offshore Structures. USA: Cambridge University Press.
Burton, T., Sharpe, D., Jenkins, N., & Bossanyi, E. (2001). Wind Energy Handbook. New York: Wiley.
Damiani, R., Jonkman, J., & Hayman, G. (2015). SubDyn User's Guide and Theory Manual (Technicla Report NREL/TP-5000-63062). USA: National Renewable Energy Laboratory. https://doi.org/10.2172/1225918
de Vries, W., Vemula, N.K., Passon, P., Fischer, T., Kaufer, D., Matha, D., & Vorpahl, F. (2011). Final Report WP4.2: Support Structure Concepts for Deep Water (UpWind_WP4_D4.2.8).
Faltinsen, O. (1993). Sea Loads on Slips and Offshore Structures. USA: Cambridge University Press.
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