Method and Computerproduct for Modeling the Sound Emission and Propagation of Systems Over a Wide Frequency Range
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United States of America Patent
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Issued Date -
Dec 18, 2014
app pub date -
Jun 17, 2014
filing date -
Jun 17, 2013
priority date (Note) -
Abandoned
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Abstract
Prediction of emission by a source of sound and a propagation of the sound within a surrounding medium, over a frequency range is provided. A system including the source and the surrounding medium is represented by elements e. For each element e and each frequency fi, a parameter Pe,i is associated to the element. At frequency fi, a parameter Pe,max is calculated over the frequency range. For each element e, elementary matrices Ke,max and Me,max are determined using the parameter Pe,max. For each frequency fi and for each element e, parameter Pe,i is used to determine a polynomial degree used to approximate the sound field, elementary matrices Ke,i and Me,i are extracted out of the matrices Ke,max and Me,max and are assembled into global matrices Ki and Mi. A global matrix system Zi is established based on the global matrices Ki and Mi, and the global matrix system is solved.
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