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An efficient evaluation method for wing fuel mass variations effect on transonic aeroelasticity

An efficient evaluation method for wing fuel mass variations effect on transonic aeroelasticity
An efficient evaluation method for wing fuel mass variations effect on transonic aeroelasticity

Purpose: This paper aims to develop an efficient evaluation method to more intuitively and effectively investigate the influence of the wing fuel mass variations because of fuel burn on transonic aeroelasticity. Design/methodology/approach: The proposed efficient aeroelastic evaluation method is developed by extending the standard computational fluid dynamics (CFD)-based proper orthogonal decomposition (POD)/reduced order model (ROM). Findings: The results of this paper show that the proposed aeroelastic efficient evaluation method can accurately and efficiently predict the aeroelastic response and flutter boundary when the wing fuel mass vary because of fuel burn. It also shows that the wing fuel mass variations have a significant effect on transonic aeroelasticity; the flutter speed increases as the wing fuel mass decreases. Without rebuilding an expensive, time-consuming CFD-based POD/ROM for each wing fuel mass variation, the computational cost of the proposed method is reduced obviously. It also shows that the computational efficiency improvement grows linearly with the number of model cases. Practical implications: The paper presents a potentially powerful tool to more intuitively and effectively investigate the influence of the wing fuel mass variation on transonic aeroelasticity, and the results form a theoretical and methodological basis for further research. Originality/value: The proposed evaluation method makes it a reality to apply the efficient standard CFD-based POD/ROM to investigate the influence of the wing fuel mass variation because of fuel burn on transonic aeroelasticity. The proposed efficient aeroelastic evaluation method, therefore, is ideally suited to deal with the investigation of the influence of wing fuel mass variations on transonic aeroelasticity and may have the potential to reduce the overall cost of aircraft design.

CFD-based POD/ROM, Efficient aeroelastic evaluation method, Transonic aeroelasticity, Wing fuel mass variations
0002-2667
881-894
Li, Dongfeng
69566740-bed3-4cd6-897d-a93a4a486219
Wang, Zhengzhong
f22bff94-305f-4846-ad87-97f68c70ae5a
Da Ronch, Andrea
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Chen, Gang
83a5c46f-13cc-4be3-ad5b-698a69e82b8e
Li, Dongfeng
69566740-bed3-4cd6-897d-a93a4a486219
Wang, Zhengzhong
f22bff94-305f-4846-ad87-97f68c70ae5a
Da Ronch, Andrea
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Chen, Gang
83a5c46f-13cc-4be3-ad5b-698a69e82b8e

Li, Dongfeng, Wang, Zhengzhong, Da Ronch, Andrea and Chen, Gang (2022) An efficient evaluation method for wing fuel mass variations effect on transonic aeroelasticity. Aircraft Engineering and Aerospace Technology, 94 (6), 881-894. (doi:10.1108/AEAT-08-2021-0227).

Record type: Article

Abstract

Purpose: This paper aims to develop an efficient evaluation method to more intuitively and effectively investigate the influence of the wing fuel mass variations because of fuel burn on transonic aeroelasticity. Design/methodology/approach: The proposed efficient aeroelastic evaluation method is developed by extending the standard computational fluid dynamics (CFD)-based proper orthogonal decomposition (POD)/reduced order model (ROM). Findings: The results of this paper show that the proposed aeroelastic efficient evaluation method can accurately and efficiently predict the aeroelastic response and flutter boundary when the wing fuel mass vary because of fuel burn. It also shows that the wing fuel mass variations have a significant effect on transonic aeroelasticity; the flutter speed increases as the wing fuel mass decreases. Without rebuilding an expensive, time-consuming CFD-based POD/ROM for each wing fuel mass variation, the computational cost of the proposed method is reduced obviously. It also shows that the computational efficiency improvement grows linearly with the number of model cases. Practical implications: The paper presents a potentially powerful tool to more intuitively and effectively investigate the influence of the wing fuel mass variation on transonic aeroelasticity, and the results form a theoretical and methodological basis for further research. Originality/value: The proposed evaluation method makes it a reality to apply the efficient standard CFD-based POD/ROM to investigate the influence of the wing fuel mass variation because of fuel burn on transonic aeroelasticity. The proposed efficient aeroelastic evaluation method, therefore, is ideally suited to deal with the investigation of the influence of wing fuel mass variations on transonic aeroelasticity and may have the potential to reduce the overall cost of aircraft design.

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e-pub ahead of print date: 1 February 2022
Published date: 26 April 2022
Additional Information: Funding Information: This work was partially supported by the National Natural Science Foundation of China (Number 51775518, 11672225, 11511130053 and 11272005), the National Program on Key Research Projects (Number MJ-2015-F-010), the Shannxi Province Natural Science Foundation (Number 2016JM1007) and the founds for the Central Universities (2014XJJ0126). Publisher Copyright: © 2022, Emerald Publishing Limited.
Keywords: CFD-based POD/ROM, Efficient aeroelastic evaluation method, Transonic aeroelasticity, Wing fuel mass variations

Identifiers

Local EPrints ID: 454948
URI: http://eprints.soton.ac.uk/id/eprint/454948
ISSN: 0002-2667
PURE UUID: dcbd9fba-34bd-4a28-b953-6c89dda8b236
ORCID for Andrea Da Ronch: ORCID iD orcid.org/0000-0001-7428-6935

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Date deposited: 02 Mar 2022 17:44
Last modified: 23 Feb 2023 03:00

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Contributors

Author: Dongfeng Li
Author: Zhengzhong Wang
Author: Andrea Da Ronch ORCID iD
Author: Gang Chen

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