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首页> 外文期刊>Chinese journal of aeronautics >STUDY OF FLAP SIDE-EDGE NOISE BASED ON THE FLY-OVER MEASUREMENTS WITH A PLANAR MICROPHONE ARRAY
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STUDY OF FLAP SIDE-EDGE NOISE BASED ON THE FLY-OVER MEASUREMENTS WITH A PLANAR MICROPHONE ARRAY

机译：基于平面麦克风阵列飞越测量的拍打侧边噪声研究

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摘要

A large planar microphone array, which consists of 111 microphones, was successfully applied to measure a two-dimensional mapping of the sound sources on landing aircraft. The focus was on the flap side-edge noise source in this paper. The spectra, directivity and sound pressure level of flap side-edge noise of 10 aircraft were presented in this paper. It is found that the spectrum of flap side-edge noise is a broadband noise with some tones in some cases.
机译：由111个麦克风组成的大型平面麦克风阵列已成功应用于测量着陆飞机上声源的二维映射。本文的重点是襟翼侧缘噪声源。介绍了10架飞机襟翼侧缘噪声的频谱，指向性和声压级。已经发现，襟翼侧边缘噪声的频谱在某些情况下是具有某些音调的宽带噪声。

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