Abstract
This paper gives an overview of work investigating the noise produced by the propellers used on small multi-rotor unmanned aerial vehicles (UAVs) which has been recently undertaken at the University of Auckland. There are a number of different physical mechanisms by which these propellers generate noise and these have been studied using computational and analytical modelling and experimental measurements. Sources of noise which are covered in this paper are: steady loading and thickness noise sources for isolated and shrouded propellers; unsteady blade motion; turbulent inflow for isolated and shrouded propellers; unsteady loading due to propeller-strut interaction; and the unsteady loading on the blades of a contra-rotating propeller. The paper also describes some recent work undertaken to develop a standardised method for measuring noise from UAVs which includes assessing the suitability of ground-board mounted microphones for outdoor noise measurements and identifying appropriate metrics for quantifying UAV noise. The paper concludes with suggestions for future work.
| Original language | English |
|---|---|
| Title of host publication | Flinovia—Flow Induced Noise and Vibration Issues and Aspects—IV |
| Editors | Con Doolan, Danielle Moreau, Angus Wills |
| Publisher | Springer, Cham |
| Pages | 103-118 |
| Number of pages | 16 |
| ISBN (Electronic) | 9783031739354 |
| ISBN (Print) | 9783031739347, 9783031739378 |
| DOIs | |
| Publication status | Published - 13 Feb 2025 |
| Event | Flow Induced Noise and Vibration Issues and Aspects IV - Australia, Sydney, Australia Duration: 22 May 2023 → 24 May 2023 https://conference.unsw.edu.au/en/Flinovia |
Conference
| Conference | Flow Induced Noise and Vibration Issues and Aspects IV |
|---|---|
| Abbreviated title | Flinovia IV |
| Country/Territory | Australia |
| City | Sydney |
| Period | 22/05/23 → 24/05/23 |
| Internet address |
Bibliographical note
Publisher Copyright:© The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2025.