Passive energy balancing design for a linear actuated morphing wingtip structure

Zhang, Jiaying; Wang, Chen; Shaw, Alexander; Amoozgar, Mohammadreza; Friswell, Michael

doi:10.1016/j.ast.2020.106279

Journal article 742 views 144 downloads

Passive energy balancing design for a linear actuated morphing wingtip structure

Jiaying Zhang

, Chen Wang, Alexander Shaw

, Mohammadreza Amoozgar, Michael Friswell

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

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

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DOI (Published version): 10.1016/j.ast.2020.106279

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
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa55484
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first_indexed	2020-10-22T13:10:24Z
last_indexed	2020-12-11T04:19:46Z
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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_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	2020-12-01T04:09:43Z
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score	11.013731

Passive energy balancing design for a linear actuated morphing wingtip structure

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