Noise Influence on Damage Detection through Modal State Observers Methodology

A.A. Cavalini, V.R. Franco, C.G. Gonsalez, V. Lopes Jr., G.P de Melo

Abstract


Noise effect on damage detection methodologies is an important matter. The probability of false diagnosis can be minimized when the noise influence is taken into account. In this paper, the noise effect in the damage detection approach is evaluated using state observers based on modal data. The paper concludes with a numerical application in a plane truss structure considering noise effect in the input signals.

References


[1] A.A. Cavalini Jr., D.D. Bueno, V.R. Franco, C.G. Gonsalez, E.H. Koroishi, V. Lopes Jr., G.P. de Melo, Sensitivity analysis of damage detection indexes for structural monitoring using modal state observers, in, “Proc. V National Congress of Mechanical Engineering”, Salvador, 2008.

A.A. Cavalini Jr., D.D. Bueno, V.R. Franco, C.G. Gonsalez, E.A. Perini, V. Lopes Jr., G.P. de Melo, Damage Detection through state observer approach, in “International Conference on Engineering Optimization”, Rio de Janeiro, 2008.

A.A. Cavalini Jr., E.H. Koroishi, A.F.G. Crespo, D.D. Bueno, C.R. Marqui, V. Lopes Jr., G.P. de Melo, Detec¸c˜ao de falhas simples e m´utuas em uma viga Euler-Bernouli utilizando a metodologia dos observadores de estado, in “6 Brazilian Conference on Dynamics, Control and Their Applications”, S˜ao Jos´e do Rio Preto, 2007.

W. Gawronski, “Dynamics and Control of Structures, A Modal Approach”, Springer Verlag, New York, 1998.

S.R. Hall, The effective management and use of structural health data, in “Proceedings of the 2nd International Workshop on Structural Health Monitoring”, pp. 265-275, 1999.

E.M. Hernandez, D. Bernal, State estimation in structural systems with model uncertainties, Journal of Engineering Mechanics - ASCE, 134 (2008), 252-257.

S.S. Kessler, S.M. Spearing, M.J. Atalla, C.E.S. Cesnik, C. Soutis, Structural health monitoring in composite materials using frequency response methods, in “Proceedings of the SPIE’s 8th International Symposium on Smart Structures

and Materials”, Newport Beach, 2001.

D.G. Luenberger, Observers for multivariable systems, IEEE Transactions on Automatic Control, AC 11 (1966), 190-197.

D.G. Luenberger, Observing the state of a linear system, IEEE Military Electronics, MIL-8 (1964), 74-80.

N.M.M. Maia, J.M.M. Silva, E.A.M. Almas, R.P.C. Sampaio, Damage detection in structures: from mode shape to frequency response function methods, Mech. Syst. Signal Process, 17, No.3 (2003), 489-498.

N.M.M. Maia, J.M.M. Silva, J. He, N.A.P. Lieven, R.M. Lin, G.W. Skingle, W.To, A.P.V. Urgueira, “Theoretical and Experimental Modal Analysis”, Research Studies Press Ltd., Baldock, 1997.

G.P. de Melo, “Detecção e Localização de Falhas via Observadores de Estado de Ordem Reduzida”, Doctor Thesis, FEM, UNICAMP, Campinas, SP, 1998.

T.S. Moraes, “Diagnose de Falhas via Observadores de Estado com Excita ¸c˜oes Desconhecidas, Identificadas por Fun¸c˜oes Ortogonais”, Master Thesis, DEM/FEIS, UNESP, Ilha Solteira, SP, 2002.

J.R.V. Moura Jr., V. Steffen Jr., D.J. Inman, Strength and damage characterization in an aircraft rib structure, in “IMAC-XXIV: A Conference and Exposition on Structural Dynamics”, Society for Experimental Mechanics, 2006.

G. Zhiwei, Actuator fault robust estimation and fault-tolerant control for a class of nonlinear descriptor systems, Automatica, 2007.




DOI: https://doi.org/10.5540/tema.2008.09.02.0195

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Trends in Computational and Applied Mathematics

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