지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.2
- 수록면
- 13 - 20 (8page)
이용수
초록· 키워드
오류제보하기
A crack identification method using an equivalent bending stiffness for cracked beam and committee of neural networks is presented. Modal properties of tapered cantilever pipe-type beam is identified by applying the boundary conditions to a general solution for tapered beam. A bending stiffness for cracked beam based on an energy method is used to identify natural frequencies and mode shapes of tapered cantilever thin-walled pipe, which has a through-the-thickness crack, subjected to bending. The identified modal properties of the cracked beam are used in constructing training patterns of neural networks. Then crack location and size are identified using a committee of the neural networks. Crack detection was carried out for an example beam using the proposed method, and the identified crack locations and sizes agree reasonably well with the exact values.
목차
Abstract
1. 서론
2. 테이퍼 캔틸레버 보의 모드특성
3. 균열보의 등가휨강성 및 모드특성
4. 군집신경망 기법
5. 균열위치 및 균열크기 추정
6. 결론
참고문헌
참고문헌 (14)
참고문헌 신청
Auciello, N. M. / 1998 / Vibrations of a aantilever tapered beam with varying section properties and carrying a mass at the free end / Journal of Sound and Vibration 214:105~119
Chen, D. W. / 2002 / The exact solutions for the natural frequencies and mode shapes of non-uniform beams with multiple spring-mass systems / Journal of Sound and Vibration 255:299~322
Dilena M. / 2011 / Detecting cracks in pipes filled with fluid from changes in natural frequencies / Mechanical Systems and Signal Processing 25:3186~3197
Ece, M. C. / 2007 / Vibration of a variable cross-section beam / Mechanics Research Communications 34:78~84
Gorman, D. J. / 1975 / Free Vibration Analysis of Beams and Shafts / John Wiley & Sons :374~379
Chen, D. W. / 2002 / The exact solutions for the natural frequencies and mode shapes of non-uniform beams with multiple spring-mass systems / Journal of Sound and Vibration 255:299~322
Dilena M. / 2011 / Detecting cracks in pipes filled with fluid from changes in natural frequencies / Mechanical Systems and Signal Processing 25:3186~3197
Ece, M. C. / 2007 / Vibration of a variable cross-section beam / Mechanics Research Communications 34:78~84
Gorman, D. J. / 1975 / Free Vibration Analysis of Beams and Shafts / John Wiley & Sons :374~379
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UCI(KEPA) : I410-ECN-0101-2016-540-001111502