Analytical Modeling of the Structureborne Noise Path on a Small Twin-Engine Aircraft
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
Published: 2018-07-17
Total Pages: 128
ISBN-13: 9781722945664
DOWNLOAD EBOOKThe structureborne noise path of a six passenger twin-engine aircraft is analyzed. Models of the wing and fuselage structures as well as the interior acoustic space of the cabin are developed and used to evaluate sensitivity to structural and acoustic parameters. Different modeling approaches are used to examine aspects of the structureborne path. These approaches are guided by a number of considerations including the geometry of the structures, the frequency range of interest, and the tractability of the computations. Results of these approaches are compared with experimental data. Cole, J. E., III and Stokes, A. Westagard and Garrelick, J. M. and Martini, K. F. Unspecified Center AERODYNAMIC NOISE; AIRCRAFT NOISE; AIRCRAFT STRUCTURES; ANALYSIS (MATHEMATICS); MODELS; ACOUSTICS; AIRCRAFT COMPARTMENTS; COMPUTATION; FREQUENCIES; GEOMETRY; PROPELLERS; SENSITIVITY; VIBRATION...