Assessing the mechanical and static aeroelastic performance of cellular Kirigami wingbox designs
Assessing the mechanical and static aeroelastic performance of cellular Kirigami wingbox designs
Adaptive wings configurations have been evaluated for morphing airframe applications during the last two decades. Constructions with flexible hinges can be in particular a solution for small top medium-scale air vehicles, while novel Kirigami technologies help to produce flexible and complex structures by enabling novel geometric paradigms. In this study, a cellular Kirigami wingbox with an adaptive hinge is designed and manufactured. The mechanical properties of the wingbox are numerically evaluated, considering the shear modulus of the cellular elements patterning the wingbox. Thus, the equivalent torsional, flexural stiffness, as well as the shear centre location of the whole wingbox structure are
calculated. The analysis is parametrised against various possible internal cell angles and cell thickness values that define the Kirigami cellular tessellation of the wingbox. The static divergence speed is also evaluated by means of the same parametrisation. This study shows the feasibility of using a Kirigami wingbox concept for morphing/adaptive small to medium-scale from a structural and aeroelastic perspective.
Li, Qinyu
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Alinsworth, Oscar
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Allegri, Giuliano
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Yuan, Jie
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Scarpa, Fabrizio
684472c3-1a28-478a-a388-5fd896986c1d
15 November 2023
Li, Qinyu
f5c152e9-2773-4d5c-aabf-a21b09cee293
Alinsworth, Oscar
5ab8f979-7d07-465f-b3e0-0f686d1bc114
Allegri, Giuliano
b8313247-9e80-4d62-b87e-aa3295222c2d
Yuan, Jie
4bcf9ce8-3af4-4009-9cd0-067521894797
Scarpa, Fabrizio
684472c3-1a28-478a-a388-5fd896986c1d
Li, Qinyu, Alinsworth, Oscar, Allegri, Giuliano, Yuan, Jie and Scarpa, Fabrizio
(2023)
Assessing the mechanical and static aeroelastic performance of cellular Kirigami wingbox designs.
Aerospace Science and Technology, 143, [108716].
(doi:10.1016/j.ast.2023.108716).
Abstract
Adaptive wings configurations have been evaluated for morphing airframe applications during the last two decades. Constructions with flexible hinges can be in particular a solution for small top medium-scale air vehicles, while novel Kirigami technologies help to produce flexible and complex structures by enabling novel geometric paradigms. In this study, a cellular Kirigami wingbox with an adaptive hinge is designed and manufactured. The mechanical properties of the wingbox are numerically evaluated, considering the shear modulus of the cellular elements patterning the wingbox. Thus, the equivalent torsional, flexural stiffness, as well as the shear centre location of the whole wingbox structure are
calculated. The analysis is parametrised against various possible internal cell angles and cell thickness values that define the Kirigami cellular tessellation of the wingbox. The static divergence speed is also evaluated by means of the same parametrisation. This study shows the feasibility of using a Kirigami wingbox concept for morphing/adaptive small to medium-scale from a structural and aeroelastic perspective.
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Accepted/In Press date: 31 October 2023
e-pub ahead of print date: 8 November 2023
Published date: 15 November 2023
Identifiers
Local EPrints ID: 483857
URI: http://eprints.soton.ac.uk/id/eprint/483857
ISSN: 1270-9638
PURE UUID: 0b4673cd-1a96-422a-b3f4-fe5392f3a8a6
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Date deposited: 07 Nov 2023 17:43
Last modified: 18 Mar 2024 04:12
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Contributors
Author:
Qinyu Li
Author:
Oscar Alinsworth
Author:
Giuliano Allegri
Author:
Jie Yuan
Author:
Fabrizio Scarpa
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