Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/71846
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 Responsibility: | 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. |
Description (link): | http://www.acoustics.asn.au/conference_proceedings/AAS2011/abstracts/themes-papers.htm |
Appears in Collections: | Aurora harvest 5 Environment Institute publications Mechanical Engineering conference papers |
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