Psychoacoustic analysis of contra-rotating propeller noise for unmanned aerial vehicles
Psychoacoustic analysis of contra-rotating propeller noise for unmanned aerial vehicles
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DOI：
10.1121/10.0003432
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发表时间：
2021-02-01
影响因子：
2.4
通讯作者：
Li, Zhengguang
中科院分区：
文献类型：
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作者：
Torija, Antonio J.;Chaitanya, Paruchuri;Li, Zhengguang
无人机（UAV）技术正在迅速发展，因为从包裹递送到人员运输的应用数量无限。随着无人机市场的扩大，社区噪声影响将成为公众接受的一个重要问题。基于对转螺旋桨的紧凑型无人机架构在空气动力学性能和冗余方面带来了显着的好处，以确保在组件故障的情况下对车辆的控制。然而，如果没有适当地设计，对转螺旋桨会产生严重的噪音。在感知影响设计方法的框架内，本文研究了最佳转子间距配置，以最大限度地减少噪声烦恼。基于一系列心理声学指标（即，响度、波动强度、粗糙度、锐度和音调）和心理声学烦恼（PA）模型，最佳转子轴向间隔距离（表示为螺旋桨叶片直径的函数）在0.2至0.4的范围内。本文还讨论了目前可用的心理声学模型预测螺旋桨噪声烦恼的性能，并定义了进一步的工作，以开发一个PA模型优化旋转系统。
Unmanned aerial vehicle (UAV) technologies are rapidly advancing due to the unlimited number of applications from parcel delivery to people transportation. As the UAV market expands, community noise impact will become a significant problem for public acceptance. Compact drone architectures based on contra-rotating propellers bring significant benefits in terms of aerodynamic performance and redundancy to ensure vehicle control in case of component failure. However, contra-rotating propellers are severely noisy if not designed appropriately. In the framework of a perception-influenced design approach, this paper investigates the optimal rotor spacing distance configuration to minimise noise annoyance. On the basis of a series of psychoacoustic metrics (i.e., loudness, fluctuation strength, roughness, sharpness, and tonality) and psychoacoustic annoyance (PA) models, the optimal rotor axial separation distance (expressed as a function of propeller blade diameter) is at a range from 0.2 to 0.4. This paper also discusses the performance of currently available psychoacoustic models to predict propeller noise annoyance and defines further work to develop a PA model optimised for rotating systems.