Shape optimisation of composite corrugated morphing skins

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dc.contributor.authorErmakova, Anna
dc.contributor.authorDayyani, Iman
dc.date.accessioned2017-01-11T10:54:07Z
dc.date.available2017-01-11T10:54:07Z
dc.date.issued2016-10-15
dc.description.abstractOne of the challenging parts of the morphing wing is the anisotropic skin, which must be flexible enough to allow the wing to change its shape and at the same time being stiff enough to withstand the aerodynamic loads. Composite corrugated skins have exceedingly anisotropic behaviour as they are stiff along the corrugation direction but flexible in transverse direction. Hence, elastomeric coated composite corrugated panels have been proposed as a candidate for application in morphing wings. This paper presents the shape optimisation of the corrugation with respect to better performance of the morphing skin and manufacturing constraints. The shape of the skin is optimised by minimising the in-plane stiffness and weight of the skin and maximising its flexural out-of-plane stiffness. The objective functions were obtained from homogenised model that depends on geometric and mechanical properties of the coated corrugated panel by means of finite element method for thin beams. A few methods of optimisation were considered: aggregated and genetic algorithm methods as representative of two major categories of multi-objective solving methods. A number of different approaches are proposed in order to solve the problem, such as corrugated skin with and without elastomer coating. The advantages of the new optimised shape of the corrugated skin over the typical shapes are discussed.en_UK
dc.identifier.citationAnna Ermakova, Iman Dayyani, Shape optimisation of composite corrugated morphing skins, Composites Part B: Engineering, Volume 115, Issue April, 2017, pp. 87-101en_UK
dc.identifier.cris15453642
dc.identifier.issn1359-8368
dc.identifier.urihttp://dx.doi.org/10.1016/j.compositesb.2016.10.029
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11248
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 3.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subjectAnisotropyen_UK
dc.subjectElasticityen_UK
dc.subjectComputational modellingen_UK
dc.subjectFinite element analysis (FEA)en_UK
dc.titleShape optimisation of composite corrugated morphing skinsen_UK
dc.typeArticleen_UK

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