VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Power law damping parameter idenfitication
    Jakšić, Nikola, 1968-
    The parameter estimation of a nonlinear power damping system is studied. The parameter identification method used here assumes a priori the equation of motion describing the system dynamics. The ... method, which is based on the measured data (acceleration), was applied to the free and forced vibrations. The identification procedure was found to be robust on the guessed value of parameters at the numerical experimentation. The parameter values were estimated with a good accuracy for both modes of system operation (free and forced) if only the measured time history was sampled at a high enough rate for the noise level contained within. It was shown that the steady state of the harmonically excited system is not the best region for the parameter identification with this method. During the experimentation the method was applied to the free vibrations in different media (air and water). The results obtained by the parameter identification method were compared to the ones obtained by separate tests and good agreement was found. The identification procedure was found to work fine for all models under consideration and the models' responses correspond well to the measured acceleration time histories.
    Vir: Journal of sound and vibration. - ISSN 0022-460X (Vol. 330, 2011, str. 5878-5893)
    Vrsta gradiva - članek, sestavni del
    Leto - 2011
    Jezik - angleški
    COBISS.SI-ID - 514143351
    DOI

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