[en] In this paper, the application of auto-regressive moving average vector models to system identification and damage detection is investigated. These parametric models have already been applied for the analysis of multiple input-output systems under ambient excitation. Their main advantage consists in the capability of extracting modal parameters from the recorded time signals, without the requirement of excitation measurement. The excitation is supposed to be a stationary Gaussian white noise. The method also allows the estimation of modal parameter uncertainties. On the basis of these uncertainties, a statistically based damage detection scheme is performed and it becomes possible to assess whether changes of modal parameters are caused by, e.g. some damage or simply by estimation inaccuracies. The paper reports first an example of identification and damage detection applied to a simulated system under random excitation. The `Steel-Quake' benchmark proposed in the framework of COST Action F3 `Structural Dynamics' is also analysed. This structure was defined by the Joint Research Centre in Ispra (Italy) to test steel building performance during earthquakes. The proposed method gives an excellent identification of frequencies and mode shapes, while damping ratios are estimated with less accuracy.
Disciplines :
Mechanical engineering
Author, co-author :
Bodeux, Jean-Bernard
Golinval, Jean-Claude ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Language :
English
Title :
Application of ARMAV models to identification and damage detection of mechanical and civil engineering structures
Publication date :
June 2001
Journal title :
Smart Materials and Structures
ISSN :
0964-1726
eISSN :
1361-665X
Publisher :
Institute of Physics Publishing, Bristol, United Kingdom
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Bibliography
Andersen P. Identification of civil engineering structures using ARMA models, PhD Thesis Department of Building Technology and Structural Engineering, Aalborg University, Denmark; 1997.
Prevosto M., Olagnon M., Benveniste A., Basseville M., Le Vey G. (1991) State-space formulation, a solution to modal parameter estimation. J. Sound Vib. 148:329-342.
Ljung L. System Identification - Theory for the User, Englewood Cliffs, NJ: Prentice-Hall; 1987.
Lee J.E., Fassois S.D. (1993) On the problem of stochastic experimental modal analysis based on multiple-excitation multiple-response data - Part I: Dispersion analysis of continuous-time structural systems. J. Sound Vib. 161:33-56.
Fassois S.D., Lee J.E. (1993) On the problem of stochastic experimental modal analysis based on multiple-excitation multiple-response data - Part II: The modal analysis approach. J. Sound Vib. 161:57-87.
Andersen P., Brincker R. (1999) Estimation of modal parameters and their uncertainties. Proc. IMAC 17, Kissimmee, FL, USA, 1999; .
Piombo B., Giorcelli E., Garibaldi L., Fasana A. (1993) Structures identification using ARMAV models. Proc. IMAC 11, Orlando, FL, USA, 1993; .
Pandit S.M., Mehta N.P. (1985) Data dependent systems approach to modal analysis via state space. J. Dynam. Syst., Meas. Control 107.
Giorcelli E., Fasana A., Garibaldi L., Riva A. (1994) Modal analysis and system identification using ARMAV models. Proc. IMAC 12, Honolulu, HI, 1994; .
Pandit S.M., Helsel R., Evensen H. (1986) Modal estimation of lumped parameter systems using vector data depend system model. Proc. IMAC 2, Los Angeles, CA, USA, 1986; .
Brinker R., Kirkegaard P.H., Andersen P., Martinez M.E. (1995) Damage detection in a off-shore structure. Proc. IMAC 13, Nashville, TN, USA, 1995; .
Pascual R., Molina J., Golinval J.C. Short-term scientific mission report, Cost F3 Action, Working Group 2; 1998.
Pascual R., Golinval J.C., Molina J. Steelquake case. Preliminary results, Cost F3 Action, Working Group2; 1999.
Peeters B., De Roeck G. (2000) One-year monitoring of the Z24-bridge: Environmental influences versus damage events. Proc. IMAC 18, San Antonio, TX, USA, 2000; .
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