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Interior Noise Analysis and Control for Light Aircraft
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1977 by SAE International in United States
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This paper describes experimental and analytical studies of the interior noise of twin-engine, propeller-driven, light aircraft. Experimental results indicate that interior noise levels due to propeller noise can be reduced by reduction of engine rpm at constant airspeed (about 3 dB), by synchronization of the twin engines/propellers (up to 12 dB), and by increasing the distances from propeller tip to fuselage. The analytical model described uses modal methods and incorporates the flat-sided geometrical and skin-stringer structural features of light aircraft. Initial results show good agreement with measured noise transmitted into a rectangular box through a flat panel.
|Technical Paper||Vibration Absorbers Quiet Propeller Noise|
|Technical Paper||Evaluation of Aircraft Internal Noise|
|Technical Paper||Structureborne Contribution to Interior Noise of Propeller Aircraft|
CitationMixson, J., Barton, C., and Vaicaitis, R., "Interior Noise Analysis and Control for Light Aircraft," SAE Technical Paper 770445, 1977, https://doi.org/10.4271/770445.
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