通过改进螺旋桨结构，显著降低无人机噪音的令人烦躁感。
Acoustic Analysis of Uneven Blade Spacing and Toroidal Geometry for Reducing Propeller Annoyance
- 采用环形桨叶与不等距叶片设计
- 实验显示显著降低噪声烦躁特征
- 适合关注无人机降噪的工程应用
无人飞行器（UAV）在人口密集区的应用日益广泛，其螺旋桨产生的噪声污染引发关注。本研究探讨了非传统螺旋桨设计——环形结构与不等距叶片螺旋桨——在降低心理声学烦躁感方面的声学性能。实验结果表明，这些设计能显著降低与噪声烦躁相关的声学特征，为未来低噪无人机设计提供有效路径。
原文摘要 · Abstract (English)
Unmanned aerial vehicles (UAVs) are becoming more commonly used in populated areas, raising concerns about noise pollution generated from their propellers. This study investigates the acoustic performance of unconventional propeller designs, specifically toroidal and uneven-blade spaced propellers, for their potential in reducing psychoacoustic annoyance. Our experimental results show that these designs noticeably reduced acoustic characteristics associated with noise annoyance.
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