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Producing Simulated Time Data for Operational Modal Analysis

  • Conference paper
Dynamics of Civil Structures, Volume 2

Abstract

Producing simulated test data from models of mechanical structures is often important for validation of analysis methods, for example parameter identification methods. Whereas investigations of test procedures and identification methods for operational modal analysis (OMA) are widely reported based on simulations, little attention is often given to the actual procedures to produce simulated response signals. For example the influence of the excitation strategy in a simulation on the following identified properties. In the present work different excitation strategies are applied to simulate responses of a modal model of a Plexiglas plate. OMA parameter identification is performed on the simulated responses and the results are compared to see the influence of chosen excitation strategy. Furthermore OMA results from a lab measurement of the real physical Plexiglas plate are presented and compared to the simulation results.

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References

  1. James GH, Carne TG, Lauffer JP (1995) The natural excitation technique (next) for modal parameter extraction from operating structures. Int J Anal Exp Modal Anal 10:260–277

    Google Scholar 

  2. Allen MS, Sracic MW, Chauhan S, Hansen MH (2011) Output-only modal analysis of linear time-periodic systems with application to wind turbine simulation data. Mech Syst Signal Process 25(4):1174–1191

    Article  Google Scholar 

  3. Reynders E, Pintelon R, De Roeck G (2008) Uncertainty bounds on modal parameters obtained from stochastic subspace identification. Mech Syst Signal Process 22(4):948–969

    Article  Google Scholar 

  4. Tondreau G, Deraemaeker A (2014) Numerical and experimental analysis of uncertainty on modal parameters estimated with the stochastic subspace method. J Sound Vib 333(18):4376–4401

    Article  Google Scholar 

  5. Ceravolo R, Abbiati G (2013) Time domain identification of structures: comparative analysis of output-only methods. J Eng Mech 139:537–544

    Article  Google Scholar 

  6. Peeters B, G De Roeck (1999) Reference-based stochastic subspace identification for output-only modal analysis. Mech Syst Signal Process 13:855–878

    Article  Google Scholar 

  7. Chauhan S, Phillips AW, Allemang RJ (2008) Damping estimation using operational modal analysis. In: Proceedings of international modal analysis XXVI, Orlando, Florida

    Google Scholar 

  8. Orlowitz E, Brandt A (2014) Modal test results of a ship under operational conditions. In: Proceedings of international modal analysis XXXII, Orlando, Florida

    Book  Google Scholar 

  9. Brandt A (2011) Noise and vibration analysis - signal analysis and experimental procedures. Wiley, Chichester

    Google Scholar 

  10. Allemang R, Brown D (1987) Experimental modal analysis and dynamic component synthesis – vol 3: Modal parameter estimation. Technical Report, USAF

    Google Scholar 

  11. Orlowitz E, Brandt A (2013) Influence of correlation estimation methods on damping estimates. In: Proceedings of 5th international operational modal analysis conference, Guimaraes, Portugal

    Google Scholar 

  12. Smallwood D, Gregory D (1986) A rectangular plate is proposed as an ies modal test structure. In: Proceedings of international modal analysis IV, Los Angeles, California

    Google Scholar 

  13. Brincker R (2013) Personal conversation

    Google Scholar 

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Acknowledgements

The work presented is supported by the INTERREG 4 A program in Southern Denmark-Schleswig-K.E.R.N, Germany with funding from the European Fund for Regional Development.

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Correspondence to Esben Orlowitz .

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© 2015 The Society for Experimental Mechanics, Inc.

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Orlowitz, E., Brandt, A. (2015). Producing Simulated Time Data for Operational Modal Analysis. In: Caicedo, J., Pakzad, S. (eds) Dynamics of Civil Structures, Volume 2. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-15248-6_36

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  • DOI: https://doi.org/10.1007/978-3-319-15248-6_36

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-15247-9

  • Online ISBN: 978-3-319-15248-6

  • eBook Packages: EngineeringEngineering (R0)

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