Weighting method for modal parameter based damage detection algorithms

Fayyadh, M.M. and Abdul Razak, H. (2011) Weighting method for modal parameter based damage detection algorithms. International Journal of Physical Sciences, 6 (20). pp. 4816-4825. ISSN 19921950,

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Abstract

When researchers use bending modes for the purpose of damage detection, a number of available modes are adopted, each of which return a value indicating the severity of damage. Normally, there is a variance in the sensitivity of different modes and the global stiffness change is derived by taking the algebraic average, which is equivalent to the mean in statistical analysis terms. This study proposes weighting method for damage detection algorithms based on the bending mode shapes for beam structures. The results of the proposed reliability weighting method for two damage severity algorithms are presented, that is, one based on the natural frequencies and the other based on the mode shape vectors.

Item Type:	Article
Funders:	UNSPECIFIED
Additional Information:	Cited By (since 1996):4 Export Date: 16 December 2013 Source: Scopus Language of Original Document: English Correspondence Address: Fayyadh, M. M.; Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; email: moatasem.m.f@gmail.com References: Abdul Razak, H., Choi, F., The effect of corrosion on the natural frequency and modal damping of reinforced concrete beams (2001) Eng. Struct, 23, pp. 1126-1133; Alampalli, S., Effect of Testing, Analysis, Damage, and Enviroment on Modal Parameters (2000) Mechanical System and Signal Processing, 14 (1), pp. 63-74; Begg, R., Mackenzoland, A., Dodds, C., Loland, O., Structural Integrity Monitoring Using Digital Processing of Vibration Signals (1976) 8th Annual Offshore Tech Conf, pp. 305-311; Cao, M., Ye, L., Zhou, L., Su, Z., Bai, R., Sensitivity of fundamental mode shape and static deflection for damage identification in cantilever beams (2011) Mech. Syst. Signal Process, 25 (2), pp. 630-643; Choubey, A., Sehgal, D., Tandon, N., Finite element analysis of vessels to study changes in natural frequencies due to cracks (2006) Int. J. Pressure Vessels Piping, 83 (3), pp. 181-187; Coppolino, R., Rubin, S., Detectability of Structural Failures in Offshore Platforms by Ambient Vibration Monitoring (1980) 12th Annual Offshore Tech Conf, pp. 101-110; Demeter, G., Free Vibration of Two-Degree Spring-Mass System (1973) Wiley-Interscience; Doebling, S., Farrar, C., Prime, M., A Summary Review of Vibration- Based Damage Identification Methods (1998) The Shock and Vibration Digest, 30 (2), pp. 91-105; Ewins, D., (2000) Modal Testing: Theory, Practice and Application, , Baldock, Hertfordshire, England. Research Studies Press Ltd; Fayyadh, M.M., Abdul Razak, H., Stiffness Reduction Index for Detection of Damage Location: Analytical Study (2011) Int. J. Phys. Sci, 6 (9), pp. 2194-2204; Fayyadh, M.M., Abdul Razak, H., The Effect of Support Condition on Dynamic Parameters (2010) The 17th International Congress On Sound and Vibration, , Cairo Egypt; Fayyadh, M.M., Abdul, R.H., Khalil, O.R., The Effect of The Differential Difference in Support Condition on The Dynamic Parameters (2011) EASEC12 the Twelfth East Asia Pacific Conference On Structural Engineering & Construction, , Hong Kong SAR, China; Jassim, Z., Fayyadh, M.M., Mustapha, F., Health Monitoring of Cantilever Rod Using Vibration Test "Theoretical and Numerical Study (2010) The 17th International Congress On Sound and Vibration, , Cairo Egypt; Johan, M., (2003) Damage Assessment of Civil Engineering Structures By Vibration Monitoring, , Katholieke University Leuven, Belgium; Kim, J., Stunns, N., Improved Damage Identification Method Based on Modal Information (2002) J. Sound Vibration, 252 (2), pp. 223-238; Lee, Y., Chung, M., A Study on Crack Detection Using Eignfrequency Test Data (2000) Comput.Struct, 77, pp. 327-342; Ndambi, J., Vantomme, J., Harri, K., Damage Assessment in Reinforced Concrete Beams Using Eignfrequncies and Mode Shape Derivatives (2002) Eng. Struct, 24, pp. 501-515; Radzie�ski, M., Krawczuk, M., Palacz, M., Improvement of damage detection methods based on experimental modal parameters (2011) Mechanical Systems and Signal Processing, 25 (6), pp. 2169-2190; Ruotolo, R., Surace, C., Damage Assessment of Multiple Crcaked Beams: Numerical Results and Expemrintal Validation (1997) J. Sound Vibration, 206 (4), pp. 567-588; Salawu, O., Detection of Structural Damage Through Change in Frequency: A review (1997) Eng.Struct, 19, pp. 718-723; Sathishkumar, K., Murthy, S., Detection of Contiguous and Distributed Damage Through Contours of Equal Frequency Change (2010) J. Sound Vibration, 329, pp. 1310-1331; Vandiver, J., Detection of Structural Failure on Fixed Platforms by Measurment of Dynamic Response (1975) The 7th Annual Offshore Tech Conf, pp. 243-252; West, W., Illustration of The Use of Modal Assurance Criterion to Detect Structural Changes in An Orbiter Test Soecimen (1984) Air Force Conference On Aircraft Structural Integrity, pp. 1-6; Zhua, H., Lia, L., Hec, X., Damage detection method for shear buildings using the changes in the first mode shape slopes (2011) Comput. Struct, 89 (9-10), pp. 733-743
Uncontrolled Keywords:	Damage algorithm, Modal parameters, Weighting
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	24 Jan 2014 15:58
Last Modified:	21 Dec 2014 09:32
URI:	http://eprints.um.edu.my/id/eprint/9037

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