Aeroacoustic design and optimisation of an all-electric ducted fan propulsion module for low-noise impact

Casagrande Hirono, F, Torija Martinez, A ORCID: https://orcid.org/0000-0002-5915-3736, Elliott, A ORCID: https://orcid.org/0000-0003-4894-0053, Taylor, J, Grimshaw, S and Lefas, D 2022, Aeroacoustic design and optimisation of an all-electric ducted fan propulsion module for low-noise impact , in: 28th AIAA/CEAS Aeroacoustics 2022 Conference, June 14-17, 2022, Southampton, UK.

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Abstract

This paper discusses the aeroacoustic aspects of the design, construction and testing of an all-electric ducted fan propulsion module for future electric aircraft. An overview of the propulsor aerodynamic design is provided. Acoustic measurements made with a prototype sub-scale unit in an anechoic chamber are reported, and measurement results are presented for far-field spectra, tonal and broadband directivities at a range of rotational speeds. It is shown that broadband noise is the dominant contributor to the sub-scale unit noise. A psychoacoustic investigation of the measured far-field radiation is conducted using selected Sound Quality Metrics, and it is shown that both Zwicker's Psychoacoustic Annoyance and Loudness scale with rotational speed at all angles.

Item Type: Conference or Workshop Item (Paper)
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre
Journal or Publication Title: 28th AIAA/CEAS Aeroacoustics 2022 Conference
Funders: Innovate UK / Aerospace Technology Institute
Depositing User: Dr Antonio J Torija Martinez
Date Deposited: 26 Jul 2022 08:17
Last Modified: 26 Jul 2022 08:17
URI: http://usir.salford.ac.uk/id/eprint/64203

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