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Passive energy balancing design for a linear actuated morphing wingtip structure

Jiaying Zhang Orcid Logo, Chen Wang, Alexander Shaw Orcid Logo, Mohammadreza Amoozgar, Michael Friswell

Aerospace Science and Technology, Volume: 107, Start page: 106279

Swansea University Authors: Jiaying Zhang Orcid Logo, Alexander Shaw Orcid Logo, Michael Friswell

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Abstract

A passive energy balancing concept for linear actuation is investigated in the current work by adopting a negative stiffness mechanism. The proposed negative stiffness mechanism uses a pre-tensioned spring to produce a passive torque and therefore to transfer the passive torque through a crankshaft...

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Published in: Aerospace Science and Technology
ISSN: 1270-9638
Published: Elsevier BV 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa55484
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spelling 2020-12-10T14:17:42.2336015 v2 55484 2020-10-22 Passive energy balancing design for a linear actuated morphing wingtip structure 12b61893c794b14f11cf0a84cb947d0e 0000-0001-7308-5090 Jiaying Zhang Jiaying Zhang true false 10cb5f545bc146fba9a542a1d85f2dea 0000-0002-7521-827X Alexander Shaw Alexander Shaw true false 5894777b8f9c6e64bde3568d68078d40 Michael Friswell Michael Friswell true false 2020-10-22 EEN A passive energy balancing concept for linear actuation is investigated in the current work by adopting a negative stiffness mechanism. The proposed negative stiffness mechanism uses a pre-tensioned spring to produce a passive torque and therefore to transfer the passive torque through a crankshaft for linear motion.The proposed passive energy balancing design is supposed to be applied in a morphing wingtip, of which the shape change comes from the elastic deformation of the morphing structure. A significant amount of linear actuation force can be required to deform the structure, and therefore it is important to reduce the required force and the consumed energy by adopting the passive energy balancing design.The kinematics of the negative stiffness mechanism is developed to satisfy the required linear motion and its geometry is then optimised to reduce the energy requirements. The performance of the optimised negative stiffness mechanism is evaluated through the net force and the total required energy, which shows the potential of the design in the morphing wingtip application. Journal Article Aerospace Science and Technology 107 106279 Elsevier BV 1270-9638 Negative stiffness mechanism, Kinematics tailoring, Energy balancing, Actuator efficiency, Morphing wingtip, Morphing aircraft 1 12 2020 2020-12-01 10.1016/j.ast.2020.106279 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2020-12-10T14:17:42.2336015 2020-10-22T14:05:27.4019195 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Jiaying Zhang 0000-0001-7308-5090 1 Chen Wang 2 Alexander Shaw 0000-0002-7521-827X 3 Mohammadreza Amoozgar 4 Michael Friswell 5 55484__18482__ce12419b718c45d2977f804ff4190df2.pdf 55484.pdf 2020-10-23T09:17:45.5201031 Output 4791682 application/pdf Accepted Manuscript true 2021-10-19T00:00:00.0000000 ©2020 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng https://creativecommons.org/licenses/by-nc-nd/4.0/
title Passive energy balancing design for a linear actuated morphing wingtip structure
spellingShingle Passive energy balancing design for a linear actuated morphing wingtip structure
Jiaying Zhang
Alexander Shaw
Michael Friswell
title_short Passive energy balancing design for a linear actuated morphing wingtip structure
title_full Passive energy balancing design for a linear actuated morphing wingtip structure
title_fullStr Passive energy balancing design for a linear actuated morphing wingtip structure
title_full_unstemmed Passive energy balancing design for a linear actuated morphing wingtip structure
title_sort Passive energy balancing design for a linear actuated morphing wingtip structure
author_id_str_mv 12b61893c794b14f11cf0a84cb947d0e
10cb5f545bc146fba9a542a1d85f2dea
5894777b8f9c6e64bde3568d68078d40
author_id_fullname_str_mv 12b61893c794b14f11cf0a84cb947d0e_***_Jiaying Zhang
10cb5f545bc146fba9a542a1d85f2dea_***_Alexander Shaw
5894777b8f9c6e64bde3568d68078d40_***_Michael Friswell
author Jiaying Zhang
Alexander Shaw
Michael Friswell
author2 Jiaying Zhang
Chen Wang
Alexander Shaw
Mohammadreza Amoozgar
Michael Friswell
format Journal article
container_title Aerospace Science and Technology
container_volume 107
container_start_page 106279
publishDate 2020
institution Swansea University
issn 1270-9638
doi_str_mv 10.1016/j.ast.2020.106279
publisher Elsevier BV
college_str Faculty of Science and Engineering
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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
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description A passive energy balancing concept for linear actuation is investigated in the current work by adopting a negative stiffness mechanism. The proposed negative stiffness mechanism uses a pre-tensioned spring to produce a passive torque and therefore to transfer the passive torque through a crankshaft for linear motion.The proposed passive energy balancing design is supposed to be applied in a morphing wingtip, of which the shape change comes from the elastic deformation of the morphing structure. A significant amount of linear actuation force can be required to deform the structure, and therefore it is important to reduce the required force and the consumed energy by adopting the passive energy balancing design.The kinematics of the negative stiffness mechanism is developed to satisfy the required linear motion and its geometry is then optimised to reduce the energy requirements. The performance of the optimised negative stiffness mechanism is evaluated through the net force and the total required energy, which shows the potential of the design in the morphing wingtip application.
published_date 2020-12-01T04:05:25Z
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