Structural influence of cabin floor on sound transmission into propeller aircraft - Analytical investigationsThe structural influence of the cabin floor on the transmission of low frequency propeller noise into aircraft interiors has been examined using a simplified analytical model. The response amplitudes and distributions of shell displacement and internal acoustic pressure are examined for various frequencies and floor configurations. In general, at lower frequencies the floor exerts little structural influence on the transmission of acoustic energy to the interior. However, as the frequency nears half the cylinder ring frequency the floor can be seen to significantly alter the internal pressure distributions and response.
Document ID
19860060689
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fuller, C. R. (Virginia Polytechnic Institute and State University Blacksburg, United States)