Psychoacoustic modelling of rotor noise
Psychoacoustic modelling of rotor noise
The aviation sector is rapidly evolving with more electric propulsion systems and a variety of new technologies of vertical take-off and landing manned and unmanned aerial vehicles. Community noise impact is one of the main barriers for the wider adoption of these new vehicles. Within the framework of a perception-driven engineering approach, this paper investigates the relationship between sound quality and first order physical parameters in rotor systems to aid design. Three case studies are considered: (i) contra-rotating versus single rotor systems, (ii) varying blade diameter and thrust in both contra-rotating and single rotor systems, and (iii) varying rotor–rotor axial spacing in contra-rotating systems. The outcomes of a listening experiment, where participants assessed a series of sound stimuli with varying design parameters, allow a better understanding of the annoyance induced by rotor noise. Further to this, a psychoacoustic annoyance model optimised for rotor noise has been formulated. The model includes a novel psychoacoustic function to account for the perceptual effect of impulsiveness. The significance of the proposed model lies in the quantification of the effects of psychoacoustic factors, such as loudness as the dominant factor, and also tonality, high frequency content, temporal fluctuations, and impulsiveness on rotor noise annoyance.
1804-1815
Torija, Antonio J.
897fc235-0fc5-44e7-9b0d-a78c4c4e36f7
Li, Zhengguang
4efe8369-23ab-4933-8c0c-0f6bdea53c05
Paruchuri, Chaitanya
5c1def64-6347-4be3-ac2d-b9f6a314b81d
March 2022
Torija, Antonio J.
897fc235-0fc5-44e7-9b0d-a78c4c4e36f7
Li, Zhengguang
4efe8369-23ab-4933-8c0c-0f6bdea53c05
Paruchuri, Chaitanya
5c1def64-6347-4be3-ac2d-b9f6a314b81d
Torija, Antonio J., Li, Zhengguang and Paruchuri, Chaitanya
(2022)
Psychoacoustic modelling of rotor noise.
Journal of the Acoustical Society of America, 151 (3), .
(doi:10.1121/10.0009801).
Abstract
The aviation sector is rapidly evolving with more electric propulsion systems and a variety of new technologies of vertical take-off and landing manned and unmanned aerial vehicles. Community noise impact is one of the main barriers for the wider adoption of these new vehicles. Within the framework of a perception-driven engineering approach, this paper investigates the relationship between sound quality and first order physical parameters in rotor systems to aid design. Three case studies are considered: (i) contra-rotating versus single rotor systems, (ii) varying blade diameter and thrust in both contra-rotating and single rotor systems, and (iii) varying rotor–rotor axial spacing in contra-rotating systems. The outcomes of a listening experiment, where participants assessed a series of sound stimuli with varying design parameters, allow a better understanding of the annoyance induced by rotor noise. Further to this, a psychoacoustic annoyance model optimised for rotor noise has been formulated. The model includes a novel psychoacoustic function to account for the perceptual effect of impulsiveness. The significance of the proposed model lies in the quantification of the effects of psychoacoustic factors, such as loudness as the dominant factor, and also tonality, high frequency content, temporal fluctuations, and impulsiveness on rotor noise annoyance.
Text
Revised_Manuscript_TC
- Accepted Manuscript
More information
Accepted/In Press date: 26 February 2022
e-pub ahead of print date: 17 March 2022
Published date: March 2022
Additional Information:
Funding Information:
A.J.T. would like to acknowledge the funding provided by Innovate UK and the UK Aerospace Technology Institute (Project No. 73692). P.C. would like to acknowledge the financial support of the Royal Academy of Engineering, United Kingdom (RF/201819/18/194). The authors would also like to thank Dr. Mantas Brazinskas and Dr. Stephen Prior for their efforts in building this rig at the University of Southampton. Z.L. would like to acknowledge the funding from the Natural Science Foundation of Zhejiang University of Science and Technology (Grant No. 2019QN15) and the funding from General Research Project of Zhejiang Provincial Department of Education (Project No. Y201839836).
Publisher Copyright:
© 2022 Acoustical Society of America.
Identifiers
Local EPrints ID: 456826
URI: http://eprints.soton.ac.uk/id/eprint/456826
ISSN: 0001-4966
PURE UUID: 651981a4-f519-4913-9670-d861dde0211f
Catalogue record
Date deposited: 12 May 2022 16:43
Last modified: 16 Mar 2024 17:03
Export record
Altmetrics
Contributors
Author:
Antonio J. Torija
Author:
Zhengguang Li
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics