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Non-linear system vibration analysis using Hilbert transform--II. Forced vibration analysis method 'Forcevib'

✍ Scribed by Michael Feldman

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
310 KB
Volume
8
Category
Article
ISSN
0888-3270

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✦ Synopsis

A technique for non-linear system investigation based on the Hilbert transform enables us to identify system instantaneous modal parameters during free vibration analysis and various kinds of excitation of the dynamic system. The direct time domain approach allows the direct extraction of linear and non-linear systems parameters from a measured time signal of input and output. This paper describes forced vibration analysis, and the proposed method determines instantaneous system modal parameters even if an input signal is a high sweep frequency quasi-harmonic signal or random. Some examples of forced vibration analysis of a non-linear system are included.

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