Static Performance Results of Propellers Used on Nano, Micro, and Mini Quadrotors

Deters, Robert W.; Dantsker, Or D.; Kleinke, Stefan; Norman, Narcrisha; Selig, Michael S.

doi:10.2514/6.2018-4122

Cited by 12 publications

(4 citation statements)

References 13 publications

(13 reference statements)

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“…Hundreds of options are available for each of the components, with generally non-scientific advice for choosing the proper combinations. To date, there has been significant effort in the modeling [119][120][121][122] and testing [111,112,118,[123][124][125][126][127][128][129][130][131][132][133][134] of UAV propulsion system components. However, there has been comparatively limited effort put into optimizing the matching of these components [135], with most of the effort towards custom-designed or generic-shaped propellers [50,[136][137][138][139].…”

Section: Propulsion System Optimization Toolmentioning

confidence: 99%

A Cyber-Physical Prototyping and Testing Framework to Enable the Rapid Development of UAVs

2022

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In this work, a cyber-physical prototyping and testing framework to enable the rapid development of UAVs is conceived and demonstrated. The UAV Development Framework is an extension of the typical iterative engineering design and development process, specifically applied to the rapid development of UAVs. Unlike other development frameworks in the literature, the presented framework allows for iteration throughout the entire development process from design to construction, using a mixture of simulated and real-life testing as well as cross-aircraft development. The framework presented includes low- and high-order methods and tools that can be applied to a broad range of fixed-wing UAVs and can either be combined and executed simultaneously or be executed sequentially. As part of this work, seven novel and enhanced methods and tools were developed that apply to fixed-wing UAVs in the areas of: flight testing, measurement, modeling and emulation, and optimization. A demonstration of the framework to quickly develop an unmanned aircraft for agricultural field surveillance is presented.

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Section: Propulsion System Optimization Toolmentioning

confidence: 99%

A Cyber-Physical Prototyping and Testing Framework to Enable the Rapid Development of UAVs

2022

Self Cite

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“…While the static aerodynamic data has been previously validated [2][3][4], the aeroacoustic test bench was recently designed and tested, thereby necessitating a data validation procedure. Figure 9 compares the SPL spectral data of the DJI carbon fiber propeller at an RPM of 5300 with results from Yang et al [29].…”

Section: Aeroacoustic Data Validationmentioning

confidence: 99%

Aerodynamic and Aeroacoustic Performance of Small UAV Propellers in Static Conditions

Jordan

Deters

Narsipur³

2020

Aiaa Aviation 2020 Forum

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The proliferation of small multi-rotor UAVs in commercial, recreational, and surveillance spheres has garnered significant interest in the noise produced by these vehicles. The current research aims to study the relationship between the aerodynamic performance and acoustic characteristics of small-scale UAV propellers. Three commercially available propellers for the DJI Phantom 2/3 UAV were selected for preliminary development and validation of an aeroacoustic experimental test setup and associated data reduction methods. Propeller thrust, torque, and power measurements were recorded at static conditions. Upon successful validation of the test bench, acoustic measurements were taken at the propeller disk's upstream and in-plane locations. The power spectral density of these acoustic signals was estimated using the modified periodogram (Welch's) method to identify frequency content and calculate sound pressure levels (SPLs) at each of the observation locations. Additionally, time-frequency analysis verified the periodogram results and identified possible sources of transient noise at static thrust. These methods found the nonrotor noise to be a major contributor to the SPL at higher frequencies and the propeller noise dominating the SPL spectra at the lower frequencies. Experimental thrust, torque, power, and sound pressure level (SPL) data were then compared for each propeller to identify relationships between aerodynamic performance and acoustic characteristics with variations in propeller geometry and blade loading.

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“…Several authors investigated the aerodynamic performance of small-scale propellers, including [26][27][28][29][30][31], and the main evidence from both the experimental and numerical point of view is that UAV propellers are less efficient than their full-scale counterparts. Such an effect is related to the low Reynolds number in which they operate.…”

Section: Introductionmentioning

confidence: 99%

Small-Scale Rotor Aeroacoustics for Drone Propulsion: A Review of Noise Sources and Control Strategies

Candeloro

Ragni

Pagliaroli

2022

Fluids

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In the last decade, the drone market has grown rapidly for both civil and military purposes. Due to their versatility, the demand for drones is constantly increasing, with several industrial players joining the venture to transfer urban mobility to the air. This has exacerbated the problem of noise pollution, mainly due to the relatively lower altitude of these vehicles and the proximity of their routes to extremely densely populated areas. In particular, both the aerodynamic and aeroacoustic optimization of the propulsive system and of its interaction with the airframe are key aspects of unmanned aerial vehicle design that can signify the success or the failure of their mission. The industrial challenge involves finding the best performance in terms of loading, efficiency and weight, and, at the same time, the most silent configuration. For these reasons, research has focused on an initial localization of the noise sources and, on further analysis, of the noise generation mechanism, focusing particularly on directivity and scattering. The aim of the present study is to review the noise source mechanisms and the state-of-the-art control strategies, available in the literature, for its suppression, focusing especially on the fluid-dynamic aspects of low Reynolds numbers of the propulsive system and on the interaction of the propulsive system flow with the airframe.

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Static Performance Results of Propellers Used on Nano, Micro, and Mini Quadrotors

Cited by 12 publications

References 13 publications

A Cyber-Physical Prototyping and Testing Framework to Enable the Rapid Development of UAVs

A Cyber-Physical Prototyping and Testing Framework to Enable the Rapid Development of UAVs

Aerodynamic and Aeroacoustic Performance of Small UAV Propellers in Static Conditions

Small-Scale Rotor Aeroacoustics for Drone Propulsion: A Review of Noise Sources and Control Strategies

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