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Type: Journal article
Title: A sliding Goertzel algorithm for adaptive passive neutralizers
Author: Howard, C.
Citation: Journal of Sound and Vibration, 2012; 331(9):1985-1993
Publisher: Academic Press Ltd Elsevier Science Ltd
Issue Date: 2012
ISSN: 0022-460X
Statement of
Carl Q. Howard
Abstract: A common method used in tuning adaptive–passive tuned vibration neutralizers is to adjust its resonance frequency to match the excitation frequency, which has the characteristic that the phase angle between its vibrating mass and its support is −90°. A sliding-Goertzel algorithm is presented and demonstrated for extracting the vibration signals at the frequency of interest. The benefit of using the sliding Goertzel algorithm compared to other methods when used in vibration environments with multiple tones is that additional band-pass notch filtering is not required. This algorithm could also be used for adaptive tuned mass dampers, adaptive Helmholtz resonators, and adaptive quarter-wave tubes.
Rights: Copyright © 2012 Elsevier Ltd. All rights reserved.
DOI: 10.1016/j.jsv.2012.01.007
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Appears in Collections:Aurora harvest
Environment Institute publications
Mechanical Engineering publications

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