The determination and enhancement of compliant modes for actuation in structural assemblies

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Title: The determination and enhancement of compliant modes for actuation in structural assemblies
Author(s): Bird, J
Santer, M
Morrison, J
Item Type: Journal Article
Abstract: Linear algebra methods for determining modes of kinematic and static indeter- minacy in jointed frames are extended to reveal modes of compliance in oth- erwise rigid assemblies. These modes are extracted from a structural model, based on nite elements, via a singular value decomposition and yield the ways in which a structure can be most easily deformed. This modal approach also allows for the formulation of a reduced-order structural model, whereby relevant modes are selected and used as the basis for the optimisation of a complaint structure. The method detailed is shown to be a useful design tool, demon- strated by its application to a structure based on the Kagome lattice geometry. For certain frameworks, rst order e ects produce tightening under actuation. As a result, a scheme to adjust the modes to take nonlinear e ects into account is also given.
Publication Date: 18-Nov-2016
Date of Acceptance: 2-Nov-2016
ISSN: 0020-7683
Publisher: Elsevier
Start Page: 264
End Page: 273
Journal / Book Title: International Journal of Solids and Structures
Volume: 106-107
Copyright Statement: © 2016 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Sponsor/Funder: Airbus Group Ltd
Funder's Grant Number: PO: 8000063097/U01
Keywords: Science & Technology
Adaptive structures
Kagome lattice
Mechanical Engineering & Transports
09 Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering

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