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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.20 No.2
- 발행연도
- 2017.1
- 수록면
- 127 - 137 (11page)
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초록· 키워드
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Identification of damping characteristics is of significant importance for dynamic response analysis and condition assessment of structural systems. Damping is associated with the behavior of the energy dissipation mechanism. Identification of damping ratios based on the sensitivity of dynamic responses and the model updating technique is investigated with numerical and experimental investigations. The effectiveness and performance of using the sensitivity-based model updating method and vibration monitoring data for damping ratios identification are investigated. Numerical studies on a three-dimensional truss bridge model are conducted to verify the effectiveness of the proposed approach. Measurement noise effect and the initial finite element modelling errors are considered. The results demonstrate that the damping ratio identification with the proposed approach is not sensitive to the noise effect but could be affected significantly by the modelling errors. Experimental studies on a steel planar frame structure are conducted. The robustness and performance of the proposed damping identification approach are investigated with real measured vibration data. The results demonstrate that the proposed approach has a decent and reliable performance to identify the damping ratios.
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참고문헌 (38)
참고문헌 신청
Barbieri, N. / 2004 / Dynamical analysis of transmission line cables. Part 2-damping estimation / Mech. Syst. Signal Pr 18(3):671~681
Brincker, R. / 2001 / Damping estimation by frequency domain decomposition / Proceedings of the 19th International Modal Analysis Conference
Caughey, T. / 1965 / Classical normal modes in damped linear dynamic systems / J. Appl. Mech. -ASME 32(3):583~588
Chen, H. P. / 2014 / Regularised finite element model updating using measured incomplete modal data / J. Sound Vib 333(21):5566~5582
Chopra, A. K. / 1995 / Dynamics of structures / Prentice Hall New Jersey
Brincker, R. / 2001 / Damping estimation by frequency domain decomposition / Proceedings of the 19th International Modal Analysis Conference
Caughey, T. / 1965 / Classical normal modes in damped linear dynamic systems / J. Appl. Mech. -ASME 32(3):583~588
Chen, H. P. / 2014 / Regularised finite element model updating using measured incomplete modal data / J. Sound Vib 333(21):5566~5582
Chopra, A. K. / 1995 / Dynamics of structures / Prentice Hall New Jersey
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