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Aerodynamic optimisation of a camber morphing aerofoil

J.H.S. Fincham, M.I. Friswell, Michael Friswell

Aerospace Science and Technology, Volume: 43, Pages: 245 - 255

Swansea University Author: Michael Friswell

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DOI (Published version): 10.1016/j.ast.2015.02.023

Abstract

An aircraft that has been carefully optimised for a single flight condition will tend to perform poorly at other flight conditions. For aircraft such as long-haul airliners, this is not necessarily a problem, since the cruise condition so heavily dominates a typical mission. However, other aircraft...

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Published in: Aerospace Science and Technology
ISSN: 1270-9638
Published: 2015
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URI: https://cronfa.swan.ac.uk/Record/cronfa20568
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first_indexed 2015-03-31T02:06:05Z
last_indexed 2018-04-27T13:17:29Z
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spelling 2018-04-27T11:21:14.0962445 v2 20568 2015-03-30 Aerodynamic optimisation of a camber morphing aerofoil 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 2015-03-30 FGSEN An aircraft that has been carefully optimised for a single flight condition will tend to perform poorly at other flight conditions. For aircraft such as long-haul airliners, this is not necessarily a problem, since the cruise condition so heavily dominates a typical mission. However, other aircraft such as UAVs, may be expected to perform well at a wide range of flight conditions. Morphing systems may be a solution to this problem, as they allow the aircraft to adapt its shape to produce optimum performance at each flight condition. Optimisation of morphing aerofoils is typically performed separately to the morphing mechanism design. In this work, an optimisation strategy is developed to account for a known possible morphing system within the aerodynamic optimisation process itself. This allows for the limitations of the system to be considered from the start of the design process. The Fishbone Active Camber (FishBAC) camber morphing system is chosen as the example mechanism, and it is shown that the FishBAC can achieve large improvements in performance over non-morphing aerofoils when multiple flight conditions are considered. Additionally, its performance is compared to an aerofoil whose shape can change arbitrarily (as if a perfect morphing mechanism can be designed), and it is shown that the FishBAC performs nearly as well, despite being a relatively simple mechanism. Journal Article Aerospace Science and Technology 43 245 255 1270-9638 31 12 2015 2015-12-31 10.1016/j.ast.2015.02.023 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2018-04-27T11:21:14.0962445 2015-03-30T16:31:47.0064959 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised J.H.S. Fincham 1 M.I. Friswell 2 Michael Friswell 3
title Aerodynamic optimisation of a camber morphing aerofoil
spellingShingle Aerodynamic optimisation of a camber morphing aerofoil
Michael Friswell
title_short Aerodynamic optimisation of a camber morphing aerofoil
title_full Aerodynamic optimisation of a camber morphing aerofoil
title_fullStr Aerodynamic optimisation of a camber morphing aerofoil
title_full_unstemmed Aerodynamic optimisation of a camber morphing aerofoil
title_sort Aerodynamic optimisation of a camber morphing aerofoil
author_id_str_mv 5894777b8f9c6e64bde3568d68078d40
author_id_fullname_str_mv 5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell
author Michael Friswell
author2 J.H.S. Fincham
M.I. Friswell
Michael Friswell
format Journal article
container_title Aerospace Science and Technology
container_volume 43
container_start_page 245
publishDate 2015
institution Swansea University
issn 1270-9638
doi_str_mv 10.1016/j.ast.2015.02.023
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 0
active_str 0
description An aircraft that has been carefully optimised for a single flight condition will tend to perform poorly at other flight conditions. For aircraft such as long-haul airliners, this is not necessarily a problem, since the cruise condition so heavily dominates a typical mission. However, other aircraft such as UAVs, may be expected to perform well at a wide range of flight conditions. Morphing systems may be a solution to this problem, as they allow the aircraft to adapt its shape to produce optimum performance at each flight condition. Optimisation of morphing aerofoils is typically performed separately to the morphing mechanism design. In this work, an optimisation strategy is developed to account for a known possible morphing system within the aerodynamic optimisation process itself. This allows for the limitations of the system to be considered from the start of the design process. The Fishbone Active Camber (FishBAC) camber morphing system is chosen as the example mechanism, and it is shown that the FishBAC can achieve large improvements in performance over non-morphing aerofoils when multiple flight conditions are considered. Additionally, its performance is compared to an aerofoil whose shape can change arbitrarily (as if a perfect morphing mechanism can be designed), and it is shown that the FishBAC performs nearly as well, despite being a relatively simple mechanism.
published_date 2015-12-31T03:24:21Z
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score 11.013552

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