Damage Quantitative Investigation of Beam Structure Based on Changing Ratio of Modal Curvature

Ji Ping Ge

doi:10.4028/www.scientific.net/AMR.255-260.654

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 255-260Damage Quantitative Investigation of Beam...

Damage Quantitative Investigation of Beam Structure Based on Changing Ratio of Modal Curvature

Abstract:

The changing ratio of modal curvature is proposed for damage recognition, and its ability of damage localization and damage quantitative has been studied in this paper. For testing the effect of damage recognition, two research parameters, the different section rigidity and the scope of damages, are included. And changing rules of the index with structure rigidity, constraints, and structure supporting system have been studied at the same time. The numerical analysis results indicated: The relation of linear increase exists between the changing ratio of modal curvature and the extent of damage, the changing slope of the index is bigger with the increase of damage extent; The boundary condition and the structure supporting system will affect the value of index; In the view of one special structure, case study should be carried to establish the relationship between value of index and the extent of damage.

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Periodical:

Advanced Materials Research (Volumes 255-260)

Pages:

654-658

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.255-260.654

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Online since:

May 2011

Authors:

Ji Ping Ge

Keywords:

Changing Ratio of Modal Curvature, Damage Localization, Damage Quantitative Identification, Numerical Analysis

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References

[1] Yuen M MF, A numerical study of eigenparameters of a damaged cantilever. Journal of Sound and Vibration, Vol. 10 (1985), p.301

DOI: 10.1016/0022-460x(85)90423-7

Google Scholar

[2] Pandey A K, Biswas M, Samman M M. Damage detection from changes in curvature mode shapes , Journal of Sound and Virbation, Vol. 145 (1991), p.321

DOI: 10.1016/0022-460x(91)90595-b

Google Scholar

[3] Salawu O S, Williams C, Damage location using vibration mode shapes, Proceedings of the 12th International Modal Analysis Conference,1994:933-939.

Google Scholar

[4] J.-T. Kim, N. Stubbs. Improved Damage Identification Method Based on Model Information. Journal of Sound and Vibration, Vol. 252 (2002), p.223.

DOI: 10.1006/jsvi.2001.3749

Google Scholar

[5] Zeng-Shou Sun, Study on Wavelet-Based Damage Identification Methods for Civil Engineering Structures .A dissertation submitted to the College of Civil Engineering and Architecture, FUZHOU UNIVERSITY,2006.

Google Scholar