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Article type: Research Article
Authors: O'Keefe, Ed | Graves, Russ
Affiliations: Boeing Defense and Space Group, 499 Boeing Blvd. MS JR-34, Huntsville, AL 35824
Abstract: This article describes a method to determine locations of noise sources that minimize modal coupling in complex acoustic volumes. Using the acoustic source scattering capabilities of the boundary element method, predictions are made of mode shape and pressure levels due to various source locations. Combining knowledge of the pressure field with a multivariable function minimization technique, the source location generating minimum pressure levels can be determined. The analysis also allows for an objective comparison of “best/worst” locations. The technique was implemented on a personal computer for the U.S. Space Station, predicting 5–10 dB noise reduction using optimum source locations.
DOI: 10.3233/SAV-1994-1503
Journal: Shock and Vibration, vol. 1, no. 5, pp. 431-437, 1994
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