Experimental Investigation on Hover Performance of a Ducted Coaxial-Rotor UAV

doi:10.3390/s23146413

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	Experimental Investigation on Hover Performance of a Ducted Coaxial-Rotor UAV
	H. Li; Z. Chen and H. Jia
	2023
发表期刊	Sensors
ISSN	14248220
卷号	23 期号:14
摘要	This paper presents experimental investigations on aerodynamic performance of a ducted coaxial-rotor system to evaluate its potential application as a small unmanned aerial vehicle (SUAV). Aimed at determining the influence of design parameters (rotor spacing, tip clearance and rotor position within the duct) on hover performance, a variety of systematic measurements for several correlative configurations (single/coaxial rotor with or without a duct) in terms of thrust and torque, as well as power, were conducted in an attempt to identify a better aerodynamic configuration. The experimental results for the coaxial-rotor system indicated that varying rotor spacing affected the thrust-sharing proportion between the two rotors, but this had no significant effect on the propulsive efficiency. The optimal H/R ratio was identified as being 0.40, due to a larger thrust and stronger stability in the case of identical rotation speeds. As for the ducted single-rotor configuration, the tip clearance played a dominant role in improving its thrust performance, especially for smaller gaps ((Formula presented.)), while the rotor position made subordinate contributions. The maximum performance was obtained with the rotor located at the P5 position (0.31Cd from the duct lip), which resulted in an enhancement of approximately 20% in power loading over the isolated single rotor. When the coaxial rotors were surrounded within the duct, the system thrust for a given power degraded with the increasing rotor spacing, which was mainly attributed to the upper rotor suffering from heavier leakage losses. And hence, the ducted coaxial-rotor system with S1 spacing had the best propulsion efficiency and hover performance with a figure of merit of 0.61. © 2023 by the authors.
DOI	10.3390/s23146413
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收录类别	sci ; ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67607
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	H. Li,Z. Chen and H. Jia. Experimental Investigation on Hover Performance of a Ducted Coaxial-Rotor UAV[J]. Sensors,2023,23(14).
APA	H. Li,&Z. Chen and H. Jia.(2023).Experimental Investigation on Hover Performance of a Ducted Coaxial-Rotor UAV.Sensors,23(14).
MLA	H. Li,et al."Experimental Investigation on Hover Performance of a Ducted Coaxial-Rotor UAV".Sensors 23.14(2023).

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