Computational Optimisation of Absorbers
There exist analytical descriptions for sound absorbers, suited for precise and fast computing numerical evaluations, even when the absorbers have a complex structure (such as multi-layer absorbers or Helmholtz resonators in combination with layers). As a consequence, the absorbers have many absorber parameters (geometrical dimensions, material parameters) which must be suitably fixed for the design of a good absorber. The determination of parameters in the N-dimensional parameter space for a good absorber by trial and error is tedious and time consuming, even for an experienced acoustician. A method is described for the computational determination of a set of optimised absorber parameters.
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Document Type: Research Article
Publication date: July 1, 2001
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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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