Charles Darwin University

CDU eSpace
Institutional Repository

 
CDU Staff and Student only
 

Acoustic based sensing of orthogonal radiating functions for three-dimensional noise sources: Background and experiments

Hill, Simon G., Snyder, Scott D. and Tanaka, Nobuo (2008). Acoustic based sensing of orthogonal radiating functions for three-dimensional noise sources: Background and experiments. Journal of Sound and Vibration,318(4-5):1050-1076.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 6 times in Scopus Article | Citations

Google Scholar Search Google Scholar

Title Acoustic based sensing of orthogonal radiating functions for three-dimensional noise sources: Background and experiments
Author Hill, Simon G.
Snyder, Scott D.
Tanaka, Nobuo
Journal Name Journal of Sound and Vibration
Publication Date 2008-12-23
Volume Number 318
Issue Number 4-5
ISSN 0022-460X   (check CDU catalogue  open catalogue search in new window)
Scopus ID 2-s2.0-55349106565
Start Page 1050
End Page 1076
Total Pages 27
Place of Publication United Kingdom
Publisher Elsevier Ltd
Field of Research 290200 Aerospace Engineering
Abstract This paper is concerned with the development of global, orthogonal, radiation patterns for 3D noise sources. Traditionally, sensing strategies for the active control of such sources is postulated on a vibration pattern and a set of radiation transfer functions. However, in practice not all noise sources are vibrational and accurate radiation functions (which may or may not be time invariant) are difficult to measure beyond the laboratory. The orthogonal basis functions developed in this work are based on a set of acoustic monopoles (arranged in a 3D array) described as multipoles, to decompose an independent set of radiating functions. The aim of the work is the design of practical acoustic sensing systems amendable to active noise control of large, complex, noise sources, or simply the characterisation and quantification of global radiation from such sources. Through experiments on a non-structural, 3D noise source, we examine the feasibility of the developed approach and compare and contrast the estimate of radiated power based on 2D and structural centric approaches.
DOI http://dx.doi.org/10.1016/j.jsv.2008.04.044   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
Versions
Version Filter Type
Access Statistics: 5 Abstract Views  -  Detailed Statistics
Created: Fri, 29 Aug 2014, 17:57:57 CST by Anthony Hornby