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Superelastic tensegrities: matrix formulation and antagonistic actuation

2018-09-14Artigo científico Acesso aberto
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dc.contributor.authorMicheletti, Andrea
dc.contributor.authorSantos, Filipe Amarante Dos
dc.contributor.authorSittner, Petr
dc.contributor.institutionDEC - Departamento de Engenharia Civil
dc.contributor.pblIOP Publishing
dc.date.accessioned2019-06-25T22:42:13Z
dc.date.available2019-06-25T22:42:13Z
dc.date.issued2018-09-14
dc.descriptionCzech Science Foundation grants 16-20264S and 18-03834S. projects LM2015048 and LM2015087.
dc.description.abstractSuperelastic tensegrity systems are prestressed structures composed by bars and cables in which some cables are realized with superelastic shape-memory alloys. These systems combine the peculiar features of tensegrity structures with those of shape-memory alloys and are particularly suitable for adaptive and variable-geometry systems. The main goal of this work is the design of systems with antagonistic actuation, that is to say, systems where two sets of superelastic cables can be actuated against each other in a reversible way. Superelasticity is here exploited to improve the stability of systems withstanding external loads. We show that the evolution of superelastic tensegrities, subjected to load and temperature changes, is described by a system of ordinary differential equations written in matrix form, a system that we solve by standard numerical routines. We then focus on a particular class of tensegrities and state a basic design criterion for an effective antagonistic actuation. Several case studies are presented. In particular, we applied our procedure to analyze different modules that can be assembled together in larger structures. Results show that the proposed procedure is able to replicate experimental data reasonably well and that it can be used to design complex systems in three-dimensions.en
dc.description.versionauthorsversion
dc.description.versionpublished
dc.format.extent2448831
dc.identifier.doi10.1088/1361-665X/aadaa5
dc.identifier.issn0964-1726
dc.identifier.otherPURE: 13652108
dc.identifier.otherPURE UUID: adc9630a-a348-4c98-9b54-c49a9cb1f870
dc.identifier.otherScopus: 85054673691
dc.identifier.otherWOS: 000444756500011
dc.identifier.otherORCID: /0000-0002-5815-4622/work/63725691
dc.identifier.urihttp://www.scopus.com/inward/record.url?scp=85054673691&partnerID=8YFLogxK
dc.identifier.urlhttps://www.scopus.com/pages/publications/85054673691
dc.language.isoeng
dc.peerreviewedyes
dc.subjectantagonistic actuation
dc.subjectmatrix equations
dc.subjectshape-memory alloys
dc.subjectsuperelastic behavior
dc.subjectTensegrity systems
dc.subjectSignal Processing
dc.subjectCivil and Structural Engineering
dc.subjectAtomic and Molecular Physics, and Optics
dc.subjectGeneral Materials Science
dc.subjectCondensed Matter Physics
dc.subjectMechanics of Materials
dc.subjectElectrical and Electronic Engineering
dc.titleSuperelastic tensegrities: matrix formulation and antagonistic actuationen
dc.typejournal article
degois.publication.issue10
degois.publication.titleSmart Materials and Structures
degois.publication.volume27
dspace.entity.typePublication
rcaap.rightsopenAccess

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