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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.54 No.4
- 발행연도
- 2015.1
- 수록면
- 711 - 723 (13page)
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This study investigates the identification of added mass and its location in the glass fiber reinforced polymer (GFRP) beam structures. The main emphasis of this paper is to ascertain the importance of inclusion of rotational degrees of freedom (dofs) in the introduction of added mass or damage identification. Two identification indices that include the rotational dofs have been introduced in this paper: the modal force index (MFI) and the modal rotational curvature index (MRCI). The MFI amplifies damage signature using undamaged numerical stiffness matrix which is related to changes in the altered mode shapes from the original mode shapes. The MRCI is obtained by using a higher derivative of rotational mode shapes. Experimental and numerical results are compared with the existing methods leading to a conclusion that the contributions of the rotational modes play a key role in the identification of added mass. The authors believe that the similar results are likely in the case of damage identification also.
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참고문헌 (20)
참고문헌 신청
Abdo, M.A.B. / 2002 / A numerical study of structural damage detection using changes in the rotation of mode shapes / J. Sound Vib 251(2):227~239
Abdo, M. A. B. / 2012 / Damage detection in plate-like structures using high-order mode shape derivatives / Int. J. Civil Struct. Eng 2(3):801~816
Cawley, P. / 1979 / The location of defects in structures from measurements of natural frequencies / J. Strain Anal. Eng 14:49~57
Dinh, H. M. / 2011 / Structural parameter identification by use of additional known masses and its experimental application / Struct. Control Hlth. Monit 19(3):1~15
Doebling, S. W. / 1998 / A summary of vibration-based damage identification methods / Shock Vib. Dig 30:91~105
Abdo, M. A. B. / 2012 / Damage detection in plate-like structures using high-order mode shape derivatives / Int. J. Civil Struct. Eng 2(3):801~816
Cawley, P. / 1979 / The location of defects in structures from measurements of natural frequencies / J. Strain Anal. Eng 14:49~57
Dinh, H. M. / 2011 / Structural parameter identification by use of additional known masses and its experimental application / Struct. Control Hlth. Monit 19(3):1~15
Doebling, S. W. / 1998 / A summary of vibration-based damage identification methods / Shock Vib. Dig 30:91~105
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