Aircraft interior noise models: Sidewall trim,stiffened structures,and cabin acoustics with floor partition |
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Authors: | LD Pope EG Wilby CM Willis WH Mayes |
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Institution: | Bolt Beranek and Newman Inc., Canoga Park, California 91305, U.S.A.;NASA Langley Research Center, Hampton, Virginia 23665, U.S.A. |
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Abstract: | As part of the continuing development of an aircraft interior noise prediction model, in which a discrete modal representation and power flow analysis are used, theoretical results are considered for inclusion of sidewall trim, stiffened structures, and cabin acoustics with floor partition. For validation purposes, predictions of the noise reductions for three test articles (a bare ring-stringer stiffened cylinder, an unstiffened cylinder with floor and insulation, and a ring-stringer stiffened cylinder with floor and sidewall trim) are compared with measurements. |
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