ON THE USE OF A RISING-FALLING CHIRP EXCITATION FOR VIBRATION TESTING

Authors
BURROWS AP WORDEN K WRIGHT JR
Citation
Ap. Burrows et al., ON THE USE OF A RISING-FALLING CHIRP EXCITATION FOR VIBRATION TESTING, Journal of sound and vibration, 192(2), 1996, pp. 599-604
Citations number
8
Categorie Soggetti
Acoustics
Journal title
Journal of sound and vibration → ACNP
ISSN journal
0022460X
Volume
192
Issue
2
Year of publication
1996
Pages
599 - 604
Database
ISI
SICI code
0022-460X(1996)192:2<599:OTUOAR>2.0.ZU;2-Y
Abstract
The practice of using rising-falling chirps (i.e., those that sweep up and down in frequency) in vibration testing is considered. This type of chirp is shown to have an amplitude spectrum which exhibits severe drop-outs in amplitude at many frequencies in the excitation bandwidth . It will lead to Frequency Response Function (FRF) estimates that are very sensitive to noise and should not be used. (C) 1996 Academic Pre ss Limited