개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2024.10
- 수록면
- 608 - 613 (6page)
이용수
초록· 키워드
오류제보하기
A closed-loop control strategy with blade amplitude as the control quantity is proposed for the excitation frequency search of the full-scale fatigue test of a wind turbine blade in the biaxial loading mode. This strategy is designed to operate the blade biaxial loading system at the resonance frequency. The strain expression of each node is derived from the discretized structural parameters and vibration state parameters of the blade. It can be observed that the strain law during biaxial loading is the superposition of the two trigonometric functions of flapwise and edgewise vibration frequencies. The strain-time course of variable amplitude is counted by the rainfall counting method, which forms the Markov matrix, and a fatigue cumulative damage model of strain is established. The biaxial load fatigue test of a 90-meter-class blade demonstrated the feasibility of automatically tracking the resonance frequency. In addition, the strainbased fatigue cumulative damage analysis method enables the real-time assessment of fatigue cumulative damage at each strain measurement point on the blade.
목차
Abstract
1. INTRODUCTION
2. CONTROL STRATEGIES AND FATIGUE DAMAGE MODELING
3. EXPERIMENT RESULT
4. CONCLUSION
REFERENCES
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