Open access
Date
2023-01-01Type
- Journal Article
ETH Bibliography
yes
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Abstract
There is a growing interest for commercial applications of Unmanned Aerial Vehicles, but important foundations for an assessment, among others about noise, are missing. This contribution specifically focuses on a method to measure and model the sound radiation of multicopters. The emission prediction is hereby based on measurements using a multiple regression approach. An important finding is that the directivity pattern is widely independent of the rotational speed of the rotors and of the flight procedure. Consequently, the directivity pattern can be determined for a stationary hover flight, which considerably simplifies the measurement procedure. In addition to a rotational speed-dependent sound emission model for hover flight, a multicopter-specific correction term is required to account for forward flight. The validity of this approach is demonstrated based on the field measurements of three different multicopter models. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000594922Publication status
publishedExternal links
Journal / series
International Journal of Environmental Research and Public HealthVolume
Pages / Article No.
Publisher
MDPISubject
UAV; multicopter; noise; modeling; measuringOrganisational unit
09697 - De Lorenzis, Laura / De Lorenzis, Laura
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ETH Bibliography
yes
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