飞机舱内中频噪声的FE-SEA混合法预测及验证  

Prediction and Validation of Aircraft Cabin Noise by Hybrid FE-SEA Method at Mid-frequency Range

作　　者：李冰[1] 陈克安[1] 潘凯[2] 胡莹[1] 

机构地区：[1]西北工业大学航海学院环境工程系,西安710072 [2]中国飞机强度研究所,西安710065

出　　处：《噪声与振动控制》2011年第4期60-63,共4页Noise and Vibration Control

基　　金：航空科学基金资助项目(编号:20081553010)

摘　　要：采用FE-SEA混合法,建立飞机舱室内噪声预测模型,提出飞机舱室的子系统划分方法,并开展4种不同激励条件下舱内噪声中频噪声预测研究。通过仿真和实验结果的对比分析,验证FE-SEA混合法在预测舱内中频噪声方面的准确性和有效性。分析结果表明:FE-SEA混合法能够比SEA方法更有效地预测舱内中频段的噪声。Prediction and experimental verification of aircraft cabin noise modeled by the hybrid FE-SEA method is car-ried 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.

关 键 词：声学 舱内噪声 FE-SEA混合法 噪声预测 中频 

分 类 号：TU112.3[建筑科学—建筑理论] TB532[理学—物理]