Hdl Handle:
http://hdl.handle.net/10545/621845
Title:
Modelling of the buckling of a diaphragm–spine structure for a wave energy converter
Authors:
Collins, Keri M.; Meng, Maozhou; Le, Huirong ( 0000-0002-6368-7466 ) ; Greaves, Deborah M.; Bellamy, Neil
Abstract:
A wide range of wave energy converter (WEC) designs exists, and the SeaWave WEC uses an unstable buckled spine mode of operation. The SeaWave consists of a hose and buckled spine-diaphragm, which pumps air along the device under wave action. A physical model and finite element analysis (FEA) is compared to a previous theoretical model in this paper. The FE model was developed in ABAQUS 6.14 using shell, solid and contact elements and the analysis was done with a quasi-static approach to reduce the computational costs. The physical model was a scale version of the novel arrangement of the spine and diaphragm made from steel, polycarbonate and latex rubber. Geometry of the deformed device was investigated results showed an increase in transverse and longitudinal curvature as the compression rate increased. The FEA tended to overestimate the bending stiffness of the model, and hence the transverse curvature, because certain behaviours of the physical model were not captured. The force required to switch from one buckled state to another was measured both in the physical and FEA models and the potential energy storage was estimated to be 0.5 J/m of device at a compression rate of 0.1%.
Affiliation:
Plymouth University; University of Derby; Sea Energy Associates Ltd.
Citation:
Collins, K. M. et al (2017) 'Modelling of the buckling of a diaphragm–spine structure for a wave energy converter', Materials & Design, 119:159
Publisher:
Elsevier
Journal:
Materials & Design
Issue Date:
15-Jan-2017
URI:
http://hdl.handle.net/10545/621845
DOI:
10.1016/j.matdes.2017.01.041
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0264127517300588
Type:
Article
Language:
en
ISSN:
02641275
Sponsors:
N/A
Appears in Collections:
Department of Mechanical Engineering & the Built Environment

Full metadata record

DC FieldValue Language
dc.contributor.authorCollins, Keri M.en
dc.contributor.authorMeng, Maozhouen
dc.contributor.authorLe, Huirongen
dc.contributor.authorGreaves, Deborah M.en
dc.contributor.authorBellamy, Neilen
dc.date.accessioned2017-09-08T11:50:54Z-
dc.date.available2017-09-08T11:50:54Z-
dc.date.issued2017-01-15-
dc.identifier.citationCollins, K. M. et al (2017) 'Modelling of the buckling of a diaphragm–spine structure for a wave energy converter', Materials & Design, 119:159en
dc.identifier.issn02641275-
dc.identifier.doi10.1016/j.matdes.2017.01.041-
dc.identifier.urihttp://hdl.handle.net/10545/621845-
dc.description.abstractA wide range of wave energy converter (WEC) designs exists, and the SeaWave WEC uses an unstable buckled spine mode of operation. The SeaWave consists of a hose and buckled spine-diaphragm, which pumps air along the device under wave action. A physical model and finite element analysis (FEA) is compared to a previous theoretical model in this paper. The FE model was developed in ABAQUS 6.14 using shell, solid and contact elements and the analysis was done with a quasi-static approach to reduce the computational costs. The physical model was a scale version of the novel arrangement of the spine and diaphragm made from steel, polycarbonate and latex rubber. Geometry of the deformed device was investigated results showed an increase in transverse and longitudinal curvature as the compression rate increased. The FEA tended to overestimate the bending stiffness of the model, and hence the transverse curvature, because certain behaviours of the physical model were not captured. The force required to switch from one buckled state to another was measured both in the physical and FEA models and the potential energy storage was estimated to be 0.5 J/m of device at a compression rate of 0.1%.en
dc.description.sponsorshipN/Aen
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0264127517300588en
dc.rightsArchived with thanks to Materials & Designen
dc.subjectWave energy converteren
dc.subjectDesignen
dc.subjectFinite element analysisen
dc.subjectDeformable structuresen
dc.titleModelling of the buckling of a diaphragm–spine structure for a wave energy converteren
dc.typeArticleen
dc.contributor.departmentPlymouth Universityen
dc.contributor.departmentUniversity of Derbyen
dc.contributor.departmentSea Energy Associates Ltd.en
dc.identifier.journalMaterials & Designen
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