Abstract
Developing on the basic idea behind parametric and non-parametric identification of nonlinear systems, another case study on integrating system identification and finite element modelling of nonlinear structures is presented. The first step, which is the focus of this paper, involves using acquired input and output data to derive an experimental model for both the underlying linear model and nonlinear model of the proposed structure, no information about the system is required and only the applied excitations and corresponding accelerations are implemented in the nonlinear identification step. The proposed case study is demonstrated on a nonlinear simple metallic plane assembly with localized stiffness and damping nonlinearities; in this case, an updated linear finite element model of the structure is derived and the nonlinearities experimentally characterised.
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References
Noël, J.P., Renson, L., Kerschen, G.: Complex dynamics of a nonlinear aerospace structure: experimental identification and modal interactions. J. Sound Vib. 333(12), 2588–2607 (2014)
Czaplewski, D.A., et al.: A soft landing waveform for actuation of a single pole single throw ohmic RF MEMs switch. J. Micromech. Sys. 15, 1586–1594 (2006)
Segalman, D.J., et al.: Handbook on dynamics of jointed structures, pp. 1–532. Sandia National Laboratories National Technical Information Service, Albuquerque, NM (2009)
T. Dossogne, et al.: Nonlinear ground vibration identification of an F-16 Aircraft—Part II understanding nonlinear behaviour in aerospace structures using sine-sweep testing. In: International Forum on Aeroelasticity and Structural Dynamics, Bristol (2015)
Fuellekrug, U., Goege, D.: Identification of weak non-linearities within complex aerospace structures. Aerosp. Sci. Technol. 23(1), 53–62 (2012)
Platten, M.F., Wright, J.R., Cooper, J.E., Dimitriadis, G.: Identification of a nonlinear wing structure using an extended modal model. J. Aircr. 46(5), 1614–1626 (2009)
Carrella, A., Ewins, D.J.: Identifying and quantifying structural nonlinearities in engineering applications from measured frequency response functions. Mech. Syst. Signal Proce. 25(3), 1011–1027 (2011)
Croufer,C., Santangelo, A.: Modern solutions for ground vibration and modal survey testing_LMS. In: LMS Ground Vibration Test Workshop, Spain (2010)
Noel, J.P., et al.: Nonlinear dynamic analysis of an F-16 aircraft using GVT data. In: Proceedings of the International Forum on Aeroelasticity and Structural Dynamics (IFASD), Bristol (2013)
Carney, K., et al.: Nonlinear-dynamic-behavior-cassini-spacecraft-modal-survey. In: Proceedings of the 15th International Modal Analysis Conference (IMAC), Orlando, FL (1997)
Dossogne, T.: Detection and characterization of nonlinearities in aircraft structures. Master’s Thesis Dissertation, University of Liège (2014)
Pintelon, R., Schoukens, J.: System identification: a frequency domain approach. John Wiley & Sons, New Jersey (2012)
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Cooper, S.B., Manzato, S., Borzacchiello, A., Bregant, L., Peeters, B. (2020). Investigating Nonlinearities in a Demo Aircraft Structure Under Sine Excitation. In: Barthorpe, R. (eds) Model Validation and Uncertainty Quantification, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-030-12075-7_5
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DOI: https://doi.org/10.1007/978-3-030-12075-7_5
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