Integrated Evaluation of the Aeroacoustics and Psychoacoustics of a Single Propeller

Author:

Sun Jianwei1,Yonezawa Koichi23,Shima Eiji4,Liu Hao13ORCID

Affiliation:

1. Graduate School of Engineering, Chiba University, Chiba 263-8522, Japan

2. Central Research Institute of Electrical Power Industry, Abiko 270-1194, Japan

3. Center for Aerial Intelligent Vehicles, Chiba University, Chiba 263-8522, Japan

4. Japan Aerospace Exploration Agency, Tokyo 181-0015, Japan

Abstract

Aeroacoustic noise in multiple rotor drones has been increasingly recognized as a crucial issue, while noise reduction is normally associated with a trade-off between aerodynamic performance and sound suppression as well as sound quality improvement. Here, we propose an integrated methodology to evaluate both aeroacoustics and psychoacoustics of a single propeller. For a loop-type propeller, an experimental investigation was conducted in association with its aerodynamic and acoustic characteristics via a hover stand test in an anechoic chamber; the psychoacoustic performance was then examined with psychoacoustic annoyance models to evaluate five psychoacoustic metrics comprising loudness, fluctuation strength, roughness, sharpness, and tonality. A comparison of the figure of merit (FM), the overall sound pressure level (OASPL) and psychoacoustic metrics was undertaken among a two-blade propeller, a four-blade propeller, the loop-type propeller, a wide chord loop-type propeller, and a DJI Phantom III propeller, indicating that the loop-type propeller enables a remarkable reduction in OASPL and a noticeable improvement in sound quality while achieving comparable aerodynamic performance. Furthermore, the psychoacoustic analysis demonstrates that the loop-type propeller can improve the psychological response to various noises in terms of the higher-level broadband and lower-level tonal noise components. It is thus verified that the integrated evaluation methodology of aeroacoustics and psychoacoustics can be a useful tool in the design of low-noise propellers in association with multirotor drones.

Funder

Grant-in-Aid for Scientific Research of KAKENHI

Center for Aerial Intelligent Vehicles (CAIV), Graduate School of Engineering, Chiba University

Publisher

MDPI AG

Subject

Health, Toxicology and Mutagenesis,Public Health, Environmental and Occupational Health

Reference44 articles.

1. Science, Technology and the Future of Small Autonomous Drones;Floreano;Nature,2015

2. Persistent UAV Delivery Logistics: MILP Formulation and Efficient Heuristic;Song;Comput. Ind. Eng.,2018

3. Optimization Approaches for Civil Applications of Unmanned Aerial Vehicles (UAVs) or Aerial Drones: A Survey;Otto;Networks,2018

4. Experimental Analysis on the Noise of Propellers for Small UAV;Sinibaldi;Appl. Acoust.,2013

5. Intaratep, N., Alexander, W.N., Devenport, W.J., Grace, S.M., and Dropkin, A. (June, January 30). Experimental Study of Quadcopter Acoustics and Performance at Static Thrust Conditions. Proceedings of the 22nd AIAA/CEAS Aeroacoustics Conference, Lyon, France.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3