Abstract
The present paper develops a new method for damage localization and severity estimation based on the employment of modal strain energy. This method is able to determine the damage locations and estimate their severities, requiring only the information about the changes of a few lower natural frequencies. First, a damage quantification method is formulated and iterative approach is adopted for determining the damage extent. Then a damage localization algorithm is proposed, in which a damage indicator is formulated where unity value corresponds to the true damage scenario. Finally, numerical studies and model tests are conducted to demonstrate the effectiveness of the developed algorithm.
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Doebling, S.W., Farrar, C.R., Prime, M.B., et al.: A summary review of damage identification methods that examine changes in dynamic properties. Shock and Vibration Digest 30(2), 91–105 (1998)
Sohn, H., Farrar, C.R., Hemez, F.M., et al.: A review of structural health monitoring literature: 1996–2001. Los Alamos National Laboratory Rep. No. LA-13976-MS, Los Alamos, N.M. (2003)
Alvandia, A. Cremona, C.: Assessment of vibration-based damage identification techniques. Journal of Sound and Vibration 292, 179–202 (2006)
Yan, Y.J., Cheng, L., Wu, Z.Y., et al.: Development in vibration-based structural damage detection technique. Mechanical Systems and Signal Processing 21, 2198–2211 (2007)
Cawley, P., Adams, R.D.: The location of defects in structures from measurement of natural frequency. Journal of Strain Analysis 14(2), 49–57 (1979)
Hassiotis, S., Jeong, G.D.: Assessment of structural damage from natural frequency measurements. Computers and Structures 49, 679–691 (1993)
Salawu, O.S.: Detection of structural damage through changes in frequency: a review. Engineering Structures 19(9), 718–723 (1997)
Kim, J.T., Ryu, Y.S., Stubbs, N.: Damage identification in beam-type structures: frequency-based method vs. modeshapebased method. Engineering Structures 25(1), 57–67 (2003)
Stubbs, N., Osegueda, R.: Global nondestructive damage evaluation in solids. International Journal of Analytical and Experimental Modal Analysis 5(2), 67–79 (1990)
Farrar, C.R., Jauregui, D.V.: Damage detection algorithms applied to experimental and numerical modal data from the I-40 bridge. Los Alamos National Laboratory Rep. No. LA-13074-MS, Los Alamos, N.M. (1996)
Li, H.J., Yang, H.Z., Hu, S.L.J.: Modal strain energy decomposition method for damage localization in 3D frame structures. Journal of Engineering Mechanics 132(9), 941–951 (2006)
Hu, S.L.J., Wang, S.Q., Li, H.J.: Cross modal strain energy for estimating damage severity. Journal of Engineering Mechanics 132(4), 429–437 (2006)
Wang, S.Q., Li, H.J., Hu, S.L.J.: Cross modal strain energy method for damage localization and severity estimation. OMAE2007-29381, In: Proceedings of the 26th International Conference on Offshore Mechanics and Arctic Engineering, San Diego, California, USA (2007)
Li, H.J., Fang, H., Hu, S.L.J.: Damage localization and severity estimate for three-dimensional frame structures. Journal of Sound and Vibration 301, 481–494 (2007)
Wang, S.Q., Li, H.J., Takayama, T.: Modal identification of off-shore platforms using statistical method based on ERA. China Ocean Engineering 19(2), 175–184 (2005)
Wang, S.Q., Liu, F.S.: New accuracy indicator to quantify the true and false modes for eigensystem realization algorithm. Structural Engineering and Mechanics 34(5), 625–634 (2010)
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The project was supported by the National Natural Science Foundation of China (50909088, 51010009), Science & Technology Development Project of Qingdao (09-1-3-18-jch) and Program for New Century Excellent Talents in University (NCET-10-0762).
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Wang, SQ., Li, HJ. Assessment of structural damage using natural frequency changes. Acta Mech Sin 28, 118–127 (2012). https://doi.org/10.1007/s10409-012-0017-7
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DOI: https://doi.org/10.1007/s10409-012-0017-7