
ARJ客机进场飞行过程的起落架噪声的实验研究
ARJ aircraft landing gear noise characteristics from fly-over measuring
ARJ aircraft landing gear noise spectra and contours were obtained from fly-over measurements.In order to di-stinguish between landing gear and other noise sources array signal processing technology was used, the result shows:A- RJ aircraft landing gear noise is broadband with some single tones,which energy is mainly in 900Hz below.The possible noise sources were analyzed, and hence supporting landing gear noise reducing design.
声学 / 起落架噪声 / 阵列处理技术 {{custom_keyword}} /
acoustics / landing gear noise / signal processing {{custom_keyword}} /
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