Proceedings of 2018 ASEE Northeast Section Conference

Experimental and CFD Study of Quadcopter Acoustics at Static Thrust Conditions
Erdem Yilmaz, Junling Hu

In recent years, unmanned aerial vehicles (UAVs) has received attention from both academia and industry for their ability to be utilized in numerous applications from filmmaking, logistics, and mining to military purposes. As a result of growing interest in UAVs, the development of multi-rotor UAVs, also referred to as drones, has dramatically accelerated due to its capability of vertical take-off and landing, improved surveillance resolution, and the ease of preparation. With the-state-of-the-art technology in the size and the resolution of cameras, companies, like DJI, have improved high-quality camera integrated drones in a variety of sizes, fly-times, and camera qualities. These drones have been launched to the market for both recreational and non-recreational drone users, which expanded the use of drones to residential areas. Despite the fact that the small size of such drones can be considered more appealing to users, the noise produced by drones is becoming a concern as it discomforts the users, residents, and even animals nearby. Accordingly, drone manufacturers are putting more effort into the design of propellers to reduce noise in addition to increase the thrust of the propellers.


In this project, experimental and computational analysis are investigated for the performance of three propellers which aim at measuring sound and thrust produced by three different set of propellers and finding the optimum design of the propellers that provides a lower noise with a better or same performance than the original propellers. Experimental study will be conducted on a readily available DJI Spark drone as a test model with the original set of drones and two designed sets. While one set of the propellers is available in the market, the two sets of designed drones will be printed by a 3D printer. In order to measure the thrust of the propellers, all three propellers will be set and mounted on the RCbenchmark Thrust Stand. A decibel meter will be applied to capture broad characteristics of drone noise. Computational fluid dynamics (CFD) analysis will be performed in SolidWorks Flow Simulation. The simulation results will be compared with the experimental results. 

Last modified: 2018-04-27
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