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

Leonard Klaus

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

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IMEKO-WC-2015-TC15-323.pdf

DOI

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IMEKO TC

TC15 - Experimental Mechanics

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