Structureborne noise investigations of a twin engine aircraftThe interior noise of aircraft powered by advanced turbo-prop concepts is likely to have nonnegligible contributions from structureborne paths, these paths being those involving propeller loads transmitted to the structures of the lifting surfaces. As a means of examining these paths, structural measurements have been performed on a small twin-engine aircraft, and in addition analytical models of the structure have been developed. In this paper results from both portions of this study are presented.
Garrelick, J. M. (Cambridge Acoustical Associates, Inc. Cambridge, MA, United States)
Cole, J. E., III (Cambridge Acoustical Associates, Inc. Cambridge, MA, United States)
Martini, K. (Cambridge Acoustical Associates, Inc. MA, United States)