Electronic Journal Technical Acoustics ISSN 1819-2408

Ben S. Cazzolato, Colin H. Hansen

Strain sensing of interior structural radiation modes on a simply supported panel

language: English

received 31.03.2005, published 16.08.2005

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ABSTRACT

Radiation modes have shown great promise as a suitable measure for estimating the power radiated from structures into both the free field and enclosures. These modes may be sensed with either discrete out-of-plane transducers or continuous strain transducers. Here appropriate sensor shape equations are derived to accurately quantify the interior radiation modes from a simply supported panel radiating into a cavity using piezo-electric strain transducers.

13 pages, 3 figures

Сitation: Ben S. Cazzolato, Colin H. Hansen. Strain sensing of interior structural radiation modes on a simply supported panel. Electronic Journal “Technical Acoustics”, http://www.ejta.org, 2005, 25.

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		Ben Cazzolato received a B.E. (mech) degree with first class honours in 1991 from the University of Adelaide, Australia. Upon graduating he commenced employment as a consulting engineer, specialising sound and vibration. In 1994 he commenced a PhD with the Active Noise and Vibration Control Group, at the University of Adelaide and graduated in 1999. Between 1999 and 2000, he worked with Professor Phil Nelson at the ISVR, UK as an Anglo-Australian Post Doctoral Research Fellow. Since 2001, Ben has been lecturing in control and signal processing at the School of Mechanical Engineering, University of Adelaide. His current research interests are active noise and vibration control and he has authored or co-authored over 40 publications in this area. e-mail: benjamin.cazzolato(at)adelaide.edu.au
		Colin Hansen - professor, is a past president of the International Institute of Acoustics and Vibration and is head of the School of Mechanical Engineering at the University of Adelaide. He is a founding director of Causal Systems, a company that manufactures commercial active noise control systems. He has been working in acoustics and noise and vibration control for the past 30 years. Prior to his academic appointment, he spent seven years as a noise and vibration consultant at BBN in the USA and in Australia. He is author of the text, Understanding Active Noise Cancellation, and co-author of the texts, Engineering Noise Control, and, Active Control of Noise and Vibration. His current research interests are focussed almost entirely on active noise and vibration control and he has authored and co-authored over 100 papers in this area.