Damage detection in concrete gravity dams using Hilbert-Huang Method, as one of the most common signal processing techniques, is studied in this research. After considering a typical geometry for dams, damage is modelled by a reduction in the modulus of elasticity in the dam’s body (in three levels of damage) and in different areas of the structure. The dam is excited by a horizontal earthquake and the primary natural frequencies of the dam are calculated by applying Hilbert-Huang Method to the measured response, which is the acceleration of five points in the system. Based on the changes in the frequencies of the damaged and undamaged structure, a parameter, called relative frequency error, has been introduced. The results show that the proposed criterion used in this study can not only properly identify the location of damage but also predict the severity of the structural damage in concrete gravity dams accurately.
A.Farsayi, R.Abbasnia. 2010. “Wavelet Transform in Damage Detection of Structures.” 6th Conference of Iranian civil engineering.
Aldemir, Alper et al. 2015. “Pseudo-Dynamic Testing of a Concrete Gravity Dam.”
Alembagheri, Mohammad, and Mohsen Ghaemian. 2013. “Damage Assessment of a Concrete Arch Dam through Nonlinear Incremental Dynamic Analysis.” Soil Dynamics and Earthquake Engineering 44: 127–37. http://dx.doi.org/10.1016/j.soildyn.2012.09.010
Allen, J B. 1977. “Short Term Spectral Analysis, Synthesis, and Modification by Discrete Fourier Transform.” IEEE Trans. Acoust., Speech, Signal Process. 25(3): 235–38 https://doi.org/10.1109/TASSP.1977.1162950.
Amiri, Gholamreza Ghodrati, and Ehsan Darvishan. 2015. “Damage Detection of Moment Frames Using Ensemble Empirical Mode Decomposition and Clustering Techniques.” KSCE Journal of Civil Engineering 19: 1302–11 https://doi.org/10.1007/s12205-015-0415-z.
Balafas, Konstantinos, and Anne S Kiremidjian. 2015. “The Continuous Wavelet Transform as a Stochastic Process for Damage Detection.”
Bathe, K. J. 1996. Finite Element Procedures in Engineering Analysis. Prentice Hall.
Brincker, Rune, Lingmi Zhang, and Palle Andersen. 2001. “Modal Identification of Output-Only Systems Using Frequency Domain Decomposition.” Smart Materials and Structures 10(3): 441–45 https://doi.org/10.1088/0964-1726/10/3/303.
Bukenya, P, P Moyo, H Beushausen, and C Oosthuizen. 2014. “Health Monitoring of Concrete Dams : A Literature Review.”
Carolina, North, and Worcester Polytechnic. 1999. “WAVELET-BASED ApPROACH FOR STRUCTURAL DAMAGE DETECTION by Z. Hou/M. Noori/ and R. St. Arnand 3.” Engineering.
Chang, Peter C., and S. Chi Liu. 2003. “Recent Research in Nondestructive Evaluation of Civil Infrastructures.” Journal of Materials in Civil Engineering 15(3): 298–304.
Chopra, Anil K. 2014. “EARTHQUAKE ANALYSIS OF CONCRETE DAMS : FACTORS TO BE CONSIDERED.”
Cleary, R Das P W. 2013. “A Mesh-Free Approach for Fracture Modelling of Gravity Dams under Earthquake”, pp. 9–33.
Doebling, S. W., C. R. Farrar, and M. B. Prime. 1998. “A Summary Review of Vibration-Based Damage Identification Methods.” The Shock and Vibration Digest 30(2): 91–105 https://doi.org/10.1177/058310249803000201.
Doebling, S W, C R Farrar, M B Prime, and D W Shevitz. 1996. “Damage Identification and Health Monitoring of Structural and Mechanical Systems from Changes in Their Vibration Characteristics: A Literature Review.” Other Information: PBD: May 1996 (836): Medium: ED; Size: 132 p.
Fox, C.H.J. 1992. “THE LOCATION OF DEFECTS IN STRUCTURES: ACOMPARISON OF THE USE OF NATURAL FREQUENCY AND MODE SHAPE DATA.”
Heylen, W, and S Lammens. 1996. “FRAC: A Consistent Way of Comparing Frequency Response Functions” ed. S Lammens. Proceedings, International Conference on Identification in Engineering, Swansea; 48–57.
Huang, N. E. et al. 2003. “A Confidence Limit for the Empirical Mode Decomposition and Hilbert Spectral Analysis.” Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 459(2037): 2317–45 https://doi.org/10.1098/rspa.2003.1123.
Humar, J. L, and A. M. Jablonski. 1988. “Boundary Element Reservoir Model for Seismic Analysis of Gravity Dams.” Earthquake Engng. Struct. Dyn. 16(8): 1129–56. http://dx.doi.org/10.1002/eqe.4290160804.
Kyang, K. 2005. Structural Sensivity Analysis and Optimization. Springer.
Lee, J., and S. Kim. 2007. “Structural Damage Detection in the Frequency Domain Using Neural Networks.” Journal of Intelligent Material Systems and Structures 18(8): 785–92 https://doi.org/10.1177/1045389X06073640.
Min, Z. H. et al. 2011. “New Methodology for the Application of Vibration-Based Damage Detection Techniques.” Structural Control and Health Monitoring 20(May 2011): n/a-n/a.
Ruotolo, R., and C. Surace. 1997. “Damage Assessment of Multiple Cracked Beams: Numerical Results and Experimental Validation.” Journal of Sound and Vibration 206: 567–88 https://doi.org/10.1006/jsvi.1997.1109.
Stubbs, Norris, and Jeong Kim. 1992. “An Efficient and Robust Algorithm for Damge Localization in Offshore Platform.” International Journal of Offshore and Polar Engineering 5(1053–5381).
Tang, J.-P. et al. 2011. “A Case Study of Damage Detection in Benchmark Buildings Using a Hilbert-Huang Transform-Based Method.” Journal of Vibration and Control 17(4): 623–36 https://doi.org/10.1177/1077546309360053.
Zhu, Futao, and Yunjie Wu. 2014. “A Rapid Structural Damage Detection Method Using Integrated ANFIS and Interval Modelling Technique.” Applied Soft Computing Journal 25: 473–84 https://doi.org/10.1016/j.asoc.2014.08.043.