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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.23 No.1
- 발행연도
- 2019.1
- 수록면
- 61 - 69 (9page)
이용수
초록· 키워드
오류제보하기
Offshore structures are generally exposed to harsh environments such as strong tidal currents and wind loadings. Monitoring the structural soundness and integrity of offshore structures is crucial to prevent catastrophic collapses and to prolong their lifetime; however, it is intrinsically challenging because of the difficulties in accessing the critical structural members that are located under water for installing and repairing sensors and data acquisition systems. Virtual sensing technologies have the potential to alleviate such difficulties by estimating the unmeasured structural responses at the desired locations using other measured responses. Despite the usefulness of virtual sensing, its performance and applicability to the structural health monitoring of offshore structures have not been fully studied to date. This study investigates the use of virtual sensing of offshore structures. A Kalman filter based virtual sensing algorithm is developed to estimate responses at the location of interest. Further, this algorithm performs a multi-sensor data fusion to improve the estimation accuracy under non-stationary tidal loading. Numerical analysis and laboratory experiments are conducted to verify the performance of the virtual sensing strategy using a bottom-fixed offshore structural model. Numerical and experimental results show that the unmeasured responses can be reasonably recovered from the measured responses.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Paust, H. S. / 2015 / Finite element modeling and structural state estimation of a bottom fixed offshore wind turbine
Peng Ren / 2014 / Strain response estimation for the fatigue monitoring of an offshore truss structure / Pacific Science Review 16(1):29~35
Sung-Han Sim / 2016 / Estimation of flexibility matrix of beam structures using multisensor fusion / Journal of Structural Integrity and Maintenance 1(2):60~64
Van der Male, P. / 2014 / Operational vibrationbased response estimation for offshore wind lattice structures / Proceedings of the International Modal Analysis Conference
B. Yeter / 2015 / Fatigue damage assessment of fixed offshore wind turbine tripod support structures / Engineering Structures 101:518~528
Peng Ren / 2014 / Strain response estimation for the fatigue monitoring of an offshore truss structure / Pacific Science Review 16(1):29~35
Sung-Han Sim / 2016 / Estimation of flexibility matrix of beam structures using multisensor fusion / Journal of Structural Integrity and Maintenance 1(2):60~64
Van der Male, P. / 2014 / Operational vibrationbased response estimation for offshore wind lattice structures / Proceedings of the International Modal Analysis Conference
B. Yeter / 2015 / Fatigue damage assessment of fixed offshore wind turbine tripod support structures / Engineering Structures 101:518~528
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