| ARJ客机进场飞行过程的起落架噪声的实验研究 |
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| 引用本文： | 陈涛,侯宏,陈志菲.ARJ客机进场飞行过程的起落架噪声的实验研究[J].振动与冲击,2012,31(10):83-86. |
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| 作者姓名： | 陈涛 侯宏 陈志菲 |
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| 作者单位： | 西北工业大学 航海学院，西安 710072 |
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| 摘 要： | 对ARJ客机降落阶段的起落架噪声进行了现场测量分析,为了将起落架噪声源与其他噪声源分开,利用了阵列信号处理技术,实验发现:ARJ飞机起落架噪声主要集中在900 Hz以下,且前、主起落架均存在强单音噪声,对起落架噪声可能的声源来源进行了分析,为起落架降噪设计提供了支持。
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| 关 键 词： | 声学 起落架噪声 阵列处理技术 |
| 收稿时间： | 2011-2-17 |
| 修稿时间： | 2011-3-29 |
ARJ aircraft landing gear noise characteristics detected by fly-over measurements |
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| CHEN Tao,HOU Hong,CHEN Zhi-fei.ARJ aircraft landing gear noise characteristics detected by fly-over measurements[J].Journal of Vibration and Shock,2012,31(10):83-86. |
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| Authors: | CHEN Tao HOU Hong CHEN Zhi-fei |
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| Affiliation: | Northwestern Polytechnical University,Xi’an 710072，China |
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| Abstract: | ARJ aircraft landing gear noise spectra and contours were obtained by fly-over measurements.In order to distinguish the source of landing gear from other noise sources,array signal processing technology was used.The result shows: ARJ aircraft landing gear noise is of broadband spectrum with some single tones,whose energys are mainly concentrated at 900 Hz below.The possible noise sources were analyzed,which benefits the design of landing gear noise reducing. |
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| Keywords: | acoustics landing gear noise signal processing |
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