COMPARISON OF HILBERT TRANSFORM AND SINE FIT APPROACHES FOR THE DETERMINATION OF DAMPING PARAMETERS

• Abstract:

  For the analysis of rotational damping measurements in the time domain, two different identification procedures are compared. The first procedure investigated incorporates a Hilbert transform of the data, which enables an analysis by a linear regression calculation. The second approach is a direct nonlinear regression calculation of a damped sine function. The two approaches are compared using both simulated data and measurement data. The results of the comparison are presented.
• Keywords:

  rotational damping, torsional damping, damping coefficient, decay rate
• Download:

  IMEKO-WC-2015-TC15-323.pdf
• DOI:

  _unreg_wc-2015.323

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