Calculation of Tyre Noise Radiation with a Mixed Approach
The radiation of tyre noise is computed using a hybrid integral/ beam tracing approach called GRIM. It is simply an integral over the vibrating tyre, of the product of the known velocity by the full Green function which takes into account all the multiple reflections and diffraction between tyre, ground and car body. This Green function can be calculated by means of a beam tracing program named ICARE – which can deal with curved surfaces and multiple diffraction. This approach makes the link between tyre models and reception points well outside the car. In order to deal with small scale phenomena, close to contact, a combined use of BEM and beam tracing is showed to bypass the limitations of both geometrical and BEM approaches.
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Document Type: Research Article
Publication date: January 1, 2008
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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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