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|Title:||A new cost function algorithm for adaptive-passive vibration and acoustic resonators|
|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|
|Conference Name:||Annual Conference of the Australian Acoustical Society (2011 : Gold Coast, Australia)|
|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.|
|Appears in Collections:||Aurora harvest 5|
Environment Institute publications
Mechanical Engineering conference papers
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