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Optimum Positioning of Active Noise Control Sensors and Actuators in Enclosures with Significant Damping Properties

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Abstract:

This paper deals with the methods used to position active noise control sensors and actuators in enclosures. A theoretical examination of the shortcomings appearing in the numerical methods most often used in scientific research is conducted, with respect to their handling of the enclosures' damping properties. A variation of an existing method is introduced, based on the explicit prediction of the sound field, which is capable of simulating realistic acoustic applications. Finally, a number of simulations and optimization runs are performed in order to quantify the inefficiency of the existing methods in modelling complicated and significant damping properties, in comparison to the newly introduced method, and determine the effect of these inefficiencies on the accurate positioning of the ANC actuators and sensors.

Document Type: Research Article

Publication date: 2005-09-01

More about this publication?
  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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