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Design and testing of a passively adaptive inlet

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Show simple item record Arena, G. Groh, R.M.J. Theunissen, R. Weaver, Paul M. Pirrera, A. 2018-07-17T11:48:32Z 2018-07-17T11:48:32Z 2018
dc.description peer-reviewed en_US
dc.description.abstract Mechanical instabilities and elastic nonlinearities are emerging engineering means for designing shape-changing devices. In this paper, we exploit the taxonomy of post-buckling behaviours of a glass-fibre panel to design an adaptive air inlet that passively regulates the fluid flow into a connected duct. The adaptive component controls the inlet aperture by snapping open and closed depending on the velocity and pressure of the surrounding fluid. Sensing, actuation and control is entirely governed by the characteristics of the post-buckled component. Post-buckling stresses— induced in the composite panel by suitably applying compressive and bending loads—create the intrinsic characteristics of stability required for the panel to snap-through and snap-back. Furthermore, the associated post-buckled shape creates the aerodynamic pressure fields required for actuation. This design concept is explored and validated here by means of wind tunnel experiments. The passive actuation and control mechanism presented is particularly valuable for fluid control applications where simplicity and mass-minimisation are critical. en_US
dc.language.iso eng en_US
dc.publisher IOP Publishing en_US
dc.relation.ispartofseries Smart Materials and Structures;27 (8)
dc.subject adaptive inlet en_US
dc.subject morphing structures en_US
dc.subject buckling en_US
dc.subject post-buckling en_US
dc.subject wind tunnel en_US
dc.subject design tool en_US
dc.subject elastic instabilities en_US
dc.title Design and testing of a passively adaptive inlet en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.identifier.doi 10.1088/1361-665X/aacf79
dc.contributor.sponsor UK Engineering and Physical Sciences Research Council (EPSRC) en_US
dc.contributor.sponsor Royal Academy of Engineering en_US
dc.contributor.sponsor SFI en_US
dc.relation.projectid EP/M013170/1 en_US
dc.relation.projectid EP/M507994/1 en_US
dc.relation.projectid RF/201718/17178 en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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