A Hybrid Finite Element / Finite Difference Time Domain Technique for Modelling the Acoustics of Surfaces Within a Medium
The paper will explore the interaction of vibrating structures with an acoustic medium such as air by the hybridisation of a time integrated sparse node finite element based technique with the finite difference time domain method. In this paper the technique will be employed to model frequency dependant reflection and absorption of surfaces though it could have wider application in modelling sound generation from forced structure vibration. The results of virtual impedance tube and frequency sweep experiments will demonstrate the technique's potential for modelling architectural surfaces and resonant absorbers.
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Document Type: Research Article
Publication date: September 1, 2007
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- 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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