세굴을 고려한 해상풍력터빈 지지구조물 위험도 평가 |
김영진1, 이대용2, 김동현3 |
1군산대학교 해양산업공학과 박사과정 2군산대학교 산학협력단 교수 3군산대학교 건축·해양건설 융합공학부 교수 |
Risk Assessment of Offshore Wind Turbine Support Structures Considering Scouring |
Young Jin Kim1, Dae Yong Lee2, Dong Hyawn Kim3 |
1Ph. D. Student, Dept. Of Ocean Science & Engineering, Kunsan National University 2Professor, Industry University Cooperation, Kunsan National University 3Professor, School of Architecture and Coastal Construction Engineering, Kunsan National Univ., 558 Daehangro, Kunsan, Jeonbuk 54150 Korea |
Corresponding author:
Dong Hyawn Kim ,Tel: +82-63-469-1862, Email: welcomed@naver.com |
Received: November 12, 2020; Revised: December 15, 2020. Accepted: December 15, 2020. |
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ABSTRACT |
The risk of offshore wind turbine support structures by scour has been proposed. The proposed utilize probabilities of scour depths and fragilities according to scour depth and a modification of a seismic risk analysis method. The probability distribution of scour depth was calculated using a equation which is suitable to consider marine environmental conditions such as significant wave height, significant period, and current velocity, and dynamic analysis was performed on an offshore wind turbine equipped with an suction bucket to find fragility. Then, the risk of offshore wind turbine support structure considering scour can be found by integrating the scour probability and the fragility. |
Keywords:
offshore wind turbine (OWT), suction bucket, scour, scouring fragility, scour risk |
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