석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰

@article{ART002482612},
author={ 서윤호 and 마평식 and 김상렬 and 김봉기 },
title={석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰},
journal={풍력에너지저널},
issn={2093-5099},
year={2019},
volume={10},
number={2},
pages={31-38},
doi={10.33519/kwea.2019.10.2.004},
url={http://dx.doi.org/10.33519/kwea.2019.10.2.004}

TY - JOUR
AU - 서윤호
AU - 마평식
AU - 김상렬
AU - 김봉기
TI - 석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰
T2 - 풍력에너지저널
PY - 2019
VL - 10
IS - 2
PB - 한국풍력에너지학회
SP - 31-38
SN - 2093-5099
AB - As the reliability of a tripod support structure with suction buckets should be evaluated by avoiding resonance, an efficient method to predict natural frequency, which is also known as an effective tool to show the existence of damage in wind turbines, is suggested. The whole structure is modeled by beam elements, while a nacelle with blades is considered as a mass. A boundary condition of the suction buckets is described by a serial combination of stiffness elements for soil and a connecting part of a suction bucket. Then, an effective structural health monitoring (SHM) system is developed to validate the proposed modelling method. Accelerometers, strain gauge and various sensors for measurement of sea environment are installed in proper locations, and measured natural frequency is extracted by measured bending strain. It is validated that the measured natural frequency is the almost the same as the predicted one, with an error rate below 1%, and the natural frequency has sufficient margin to major excitation frequencies such as 1P and 3P. Also, it is observed that the measured natural frequency is constant for 3 months.
KW - 해상 풍력발전기, 석션 버켓, 고유진동수, 구조물 건전성 감시
DO - 10.33519/kwea.2019.10.2.004
UR - http://dx.doi.org/10.33519/kwea.2019.10.2.004
ER -

서윤호 , 마평식 , 김상렬 and 김봉기 (2019). 석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰. 풍력에너지저널, 10( 2), 31- 38.

서윤호 , 마평식 , 김상렬 and 김봉기 . 2019, “석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰”, 풍력에너지저널, vol. 10, no. 2, pp. 31-38. Available from: doi:10.33519/kwea.2019.10.2.004

서윤호 마평식 et al. 김상렬 김봉기 “석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰” 풍력에너지저널 10.2 pp. 31-38 (2019): 31.

서윤호 , 마평식 , 김상렬 , 김봉기 . 석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰 풍력에너지저널 [Internet]. 2019; 10( 2), : 31-38. Available from: doi:10.33519/kwea.2019.10.2.004

서윤호 , 마평식 , 김상렬 and 김봉기 . “석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰” 풍력에너지저널 10, no.2 (2019): 31-38. doi: 10.33519/kwea.2019.10.2.004

홈 권호 목록 논문 목록 논문 상세

석션 버켓 지지구조 해상 풍력발전기의 고유진동수 예측과 구조물 건전성 감시 시스템을 이용한 고유진동수 관찰

풍력에너지저널

약어 : -

2019, vol.10, no.2, pp.31 - 38

DOI : 10.33519/kwea.2019.10.2.004

발행기관 : 한국풍력에너지학회

연구분야 : 기타공학

서윤호¹ , 마평식² , 김상렬³ , 김봉기⁴

¹한국기계연구원

²한국기계연구원

³한국기계연구원

⁴한국기계연구원

인용한 논문 수 : - 서지 간략 보기

초록

As the reliability of a tripod support structure with suction buckets should be evaluated by avoiding resonance, an efficient method to predict natural frequency, which is also known as an effective tool to show the existence of damage in wind turbines, is suggested. The whole structure is modeled by beam elements, while a nacelle with blades is considered as a mass. A boundary condition of the suction buckets is described by a serial combination of stiffness elements for soil and a connecting part of a suction bucket. Then, an effective structural health monitoring (SHM) system is developed to validate the proposed modelling method. Accelerometers, strain gauge and various sensors for measurement of sea environment are installed in proper locations, and measured natural frequency is extracted by measured bending strain. It is validated that the measured natural frequency is the almost the same as the predicted one, with an error rate below 1%, and the natural frequency has sufficient margin to major excitation frequencies such as 1P and 3P. Also, it is observed that the measured natural frequency is constant for 3 months.

키워드

해상 풍력발전기, 석션 버켓, 고유진동수, 구조물 건전성 감시

참고문헌(13)

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