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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 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.58 No.6
- 발행연도
- 2016.1
- 수록면
- 1,087 - 1,107 (21page)
이용수
초록· 키워드
오류제보하기
A method of damage detection based on the moving harmonic excitation and continuous wavelet transforms is presented. The applied excitation is used as a moving actuator and its frequency and speed parameters can be adjusted for an amplified response. The continuous wavelet transforms, CWT, is used for cracks detection based on the resulting amplified signal. It is demonstrated that this identification procedure is largely better than the classical ones based on eigenfrequencies or on the eigenmodes wavelet transformed. For vibration responses, free and forced vibration analyses of multi-cracked beams are investigated based on both analytical and numerical methodological approaches. Cracks are modeled through rotational springs whose compliances are evaluated using linear elastic fracture mechanics. Based on the obtained forced responses, multi-cracks positions are accurately identified and the CWT identification can be highly improved by adjusting the frequency and the speed excitation parameters.
목차
등록된 정보가 없습니다.
참고문헌 (24)
참고문헌 신청
Mohammad Hossein Abolbashari / 2014 / A multi-crack effects analysis and crack identification in functionally graded beams using particle swarm optimization algorithm and artificial neural network / Structural Engineering and Mechanics, An Int＇l Journal 51(2):299~313
Al-Waily, M. / 2013 / Theoretical and numerical vibration study of continuous beam with crack size and location effect / Int. J. Innov. Res. Sci. Eng. Tech 2(9):4166~4177
Andreaus, U. / 2007 / Non-linear dynamics of a cracked cantilever beam under harmonic excitation / Int. J. Nonlin. Mech 42(3):566~575
Behzad, M. / 2010 / A continuous vibration theory for beams with a vertical edge crack / Scientia Iranica 17(3):194~204
Christides, S. / 1984 / One dimensional theory of cracked Bernoulli-Euler beams / Int. J. Mech. Sci 26(11-12):639~648
Al-Waily, M. / 2013 / Theoretical and numerical vibration study of continuous beam with crack size and location effect / Int. J. Innov. Res. Sci. Eng. Tech 2(9):4166~4177
Andreaus, U. / 2007 / Non-linear dynamics of a cracked cantilever beam under harmonic excitation / Int. J. Nonlin. Mech 42(3):566~575
Behzad, M. / 2010 / A continuous vibration theory for beams with a vertical edge crack / Scientia Iranica 17(3):194~204
Christides, S. / 1984 / One dimensional theory of cracked Bernoulli-Euler beams / Int. J. Mech. Sci 26(11-12):639~648
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