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Type: Conference paper
Title: A new cost function algorithm for adaptive-passive vibration and acoustic resonators
Author: Howard, C.
Citation: Proceedings of ACOUSTICS 2011: Breaking New Ground, held at the Gold Coast, Australia, 2-4 November, 2011 / D.J. Mee and I.D.M. Hillock (eds.): pp.1-6
Publisher: Australian Acoustical Society
Publisher Place: CD
Issue Date: 2011
ISBN: 9780975785584
Conference Name: Annual Conference of the Australian Acoustical Society (2011 : Gold Coast, Australia)
Statement of
Carl Q. Howard
Abstract: Adaptive-passive vibration and acoustic control systems can provide significant attenuation without requiring signifi-cant power compared to an active control system. The control system includes an algorithm to evaluate a cost-function to be minimised, which is typically a time-averaged multiplication of the vibration or noise on the resonator and at a point in the system where the disturbance is to be minimised. This conventional algorithm of cost-function evaluation is suitable for simple systems. A new cost-function evaluation algorithm is proposed based on the sliding- Goertzel algorithm, that is tolerant of multiple harmonics and high background broadband noise. The algorithm was demonstrated on an experimental rig of an adaptive tuned vibration neutraliser and a two-stage vibration isolation system.
Rights: © Australian Acoustical Society, Queensland Division 2011.
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Appears in Collections:Aurora harvest 5
Environment Institute publications
Mechanical Engineering conference papers

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