A Coupled Sensitivity Method for Structural Damage Detection

Abstract:

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Based on the vibration information, a mixed sensitivity method is presented to identify structural damage by combining the eigenvalue sensitivity with the generalized flexibility sensitivity. The sensitivity of structural generalized flexibility matrix is firstly derived by using the first frequency and the corresponding mode shape only and then the eigenvalue sensitivity together with the generalized flexibility sensitivity are combined to calculate the elemental damage parameters. The presented mixed perturbation approach is demonstrated by a numerical example concerning a simple supported beam structure. It has been shown that the proposed procedure is simple to implement and may be useful for structural damage identification.

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Periodical:

Edited by:

Xiancan Deng and Xufeng Dong

Pages:

271-275

DOI:

10.4028/www.scientific.net/AMR.681.271

Citation:

J. Li and P. J. Wei, "A Coupled Sensitivity Method for Structural Damage Detection", Advanced Materials Research, Vol. 681, pp. 271-275, 2013

Online since:

April 2013

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$35.00

[1] S.W. Doebling, C.R. Farrar, M.B. Prime, A summary review of vibration-based damage identification methods, The Shock and Vibration Digest. 30 (1998) 91-105.

DOI: 10.1177/058310249803000201

[2] A. Alvandi, C. Cremona, Assessment of vibration-based damage identification techniques, Journal of Sound and Vibration. 292 (2006) 179-202.

DOI: 10.1016/j.jsv.2005.07.036

[3] A.K. Pandey, M. Biswas, Damage detection in structures using changes in flexibility, Journal of Sound and Vibration. 169 (1994) 3-17.

[4] A.K. Pandey, M. Biswas, Experimental verification of flexibility difference method for locating damage in structure, Journal of Sound and Vibration. 184 (1995) 311-328.

DOI: 10.1006/jsvi.1995.0319

[5] Q. W. Yang, J. K. Liu, Damage identification by the eigenparameter decomposition of structural flexibility change, International Journal for Numerical Methods in Engineering, 78 (2009) 444-459.

DOI: 10.1002/nme.2494

[6] J. Li, B. S. Wu, Q. C. Zeng, C. W. Lim, A Generalized flexibility matrix based approach for structural damage detection, Journal of Sound and Vibration. 329 (2010) 4583-4587.

DOI: 10.1016/j.jsv.2010.05.024

[7] J. Li, Z. G. Li, H. X. Zhong, B. S. Wu, Structural damage detection using generalized flexibility matrix and changes in natural frequencies, AIAA Journal. 50(2012) 1072-1078.

DOI: 10.2514/1.j051107

[8] J. Li, Structural damage detection based on generalized flexibility matrix, Advanced materials research. 594 (2012) 1074-1077.

DOI: 10.4028/www.scientific.net/amr.594-597.1074

[9] O. S. Salawu, Detection of structural damage through changes in frequency: A Review, Engineering Structures. 19(1997) 718-723.

DOI: 10.1016/s0141-0296(96)00149-6

[10] P. Cawley, R. D. Adams, The locations of defects in structures from measurements of natural frequencies, Journal of Strain Analysis for Engineering Design. 14(1979) 49-57.

[11] S. Hassiotis, G. D. Jeong, Identification of stiffness reduction using natural frequencies, Journal of Engineering Mechanics. 121(1995) 1106-1113.

DOI: 10.1061/(asce)0733-9399(1995)121:10(1106)

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