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Prediction and Validation of Aircraft Cabin Noise by Hybrid FE-SEA Method at Mid-frequency Range
LI Bing;CHEN Ke-an;PAN Kai;HU Ying
2011, 31 (4):
60-63.
DOI: 10.3969/j.issn.1006-1355-2011.04.014
Prediction and experimental verification of aircraft cabin noise modeled by the hybrid FE-SEA method is carried out. The method of subsystem dividing of the cabin is introduced. The cabin’s noise spectrums in mid-frequency range under 4 different excitation conditions are simulated and thereafter compared with measurement results. It is shown that the hybrid FE-SEA method based approach is more accurate than the conventional Statistical Energy Analysis (SEA) method in predicting mid-frequency noise inside the aircraft cabin.
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