On the use of Pade approximants in the estimation of eigenfrequencies and damping ratios of a vibrating system

An approach to estimate eigenfrequencies and damping ratios of a vibrating system, in time domain from output data only, is studied. This approach is based on the interpretation of histograms obtained from the poles of Padé approximants. Using properties of the asymptotic location of poles of Padé a...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Journal of sound and vibration 2006-05, Vol.292 (3), p.571-582
1. Verfasser:	Lardies, Joseph
Format:	Artikel
Sprache:	eng
Schlagworte:	Approximants Asymptotic properties Damping Eigenfrequencies Engineering Sciences Exact sciences and technology Fundamental areas of phenomenology (including applications) Histograms Mechanics Physics Poles Rational functions Solid mechanics Structural and continuum mechanics Vibration Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...) Vibrations
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An approach to estimate eigenfrequencies and damping ratios of a vibrating system, in time domain from output data only, is studied. This approach is based on the interpretation of histograms obtained from the poles of Padé approximants. Using properties of the asymptotic location of poles of Padé approximants to rational functions, different subsets of eigenfrequencies and damping ratios are obtained and their histograms plotted. Numerical and experimental examples are presented.
ISSN:	0022-460X 1095-8568
DOI:	10.1016/j.jsv.2005.08.010