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
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.25 No.1
- 발행연도
- 2020.1
- 수록면
- 1 - 22 (22page)
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초록· 키워드
오류제보하기
The modal strain energy method is one of the efficient methods for detecting damage in the structures. Due to existing some limitations in real-world structures, sensors can only be located on a limited number of degrees of freedom (DOFs) of a structure. Therefore, the mode shape values in all DOFs of structures cannot be measured. In this paper, a modified modal strain energy based index (MMSEBI) is introduced to locate damaged elements of structures when a limited number of sensors are used. The proposed MMSEBI is based on the reconstruction of mode shapes using Improved Reduction System (IRS) method. Therefore, in the first step by employing IRS method, mode shapes in slave degrees of freedom are estimated by those of master degrees of freedom. In the second step, the proposed MMSEBI is used to located damage elements. In order to evaluate the efficiency of the proposed method, two numerical examples are considered under different damage patterns considering the measurement noise. Moreover, the universal threshold based on statistical hypothesis testing principles is applied to damage index values. The results show the effectiveness of the proposed MMSEBI for the structural damage localization when comparing with the available damage index named MESBI. The results demonstrate that the presented method can be used as a practical strategy for structural damage identification, especially when a limited number of sensors are installed on the structure. Finally, the combination of MMSEBI and IRS method can provide a reliable tool to identify the location of damage accurately.
목차
등록된 정보가 없습니다.
참고문헌 (35)
참고문헌 신청
Marcı́lio Alves / 2000 / On the elastic modulus degradation in continuum damage mechanics / Computers & Structures 76(6):703~712
B. Asgarian / 2009 / Damage detection in jacket type offshore platforms using modal strain energy / Structural Engineering and Mechanics, An Int＇l Journal 33(2):325~337
Mohammad-Reza Ashory / 2017 / An efficient modal strain energy-based damage detection for laminated composite plates / Advanced Composite Materials 27(2):147~162
Ding Q. / 2013 / Damage detection in road and bridge based on modal strain energy method / Proceedings of the 4th International Conference on Transportation Engineering (ICTE 2013) :1753~1758
D. Dinh-Cong / 2017 / An efficient multi-stage optimization approach for damage detection in plate structures / Advances in Engineering Software 112:76~87
B. Asgarian / 2009 / Damage detection in jacket type offshore platforms using modal strain energy / Structural Engineering and Mechanics, An Int＇l Journal 33(2):325~337
Mohammad-Reza Ashory / 2017 / An efficient modal strain energy-based damage detection for laminated composite plates / Advanced Composite Materials 27(2):147~162
Ding Q. / 2013 / Damage detection in road and bridge based on modal strain energy method / Proceedings of the 4th International Conference on Transportation Engineering (ICTE 2013) :1753~1758
D. Dinh-Cong / 2017 / An efficient multi-stage optimization approach for damage detection in plate structures / Advances in Engineering Software 112:76~87
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