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dc.contributor.authorOller Aramayo, Sergio A.
dc.contributor.authorNallim, Liz G.
dc.contributor.authorOller Martínez, Sergio Horacio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria
dc.identifier.citationOller, S.; Nallim, L.; Oller, S. An integrated procedure for the structural design of a composite rotor-hydrofoil of a Water Current Turbine (WCT). "Applied composite materials", Desembre 2013, vol. 20, núm. 6, p. 1273-1288.
dc.description.abstractThis paper shows an integrated structural design optimization of a composite rotor-hydrofoil of a water current turbine by means the finite elements method (FEM), using a Serial/Parallel mixing theory (Rastellini et al. Comput. Struct. 86:879–896, 2008, Martinez et al., 2007, Martinez and Oller Arch. Comput. Methods. 16(4):357–397, 2009, Martinez et al. Compos. Part B Eng. 42(2011):134–144, 2010) coupled with a fluid-dynamic formulation and multi-objective optimization algorithm (Gen and Cheng 1997, Lee et al. Compos. Struct. 99:181–192, 2013, Lee et al. Compos. Struct. 94(3):1087–1096, 2012). The composite hydrofoil of the turbine rotor has been design using a reinforced laminate composites, taking into account the optimization of the carbon fiber orientation to obtain the maximum strength and lower rotational-inertia. Also, these results have been compared with a steel hydrofoil remarking the different performance on both structures. The mechanical and geometrical parameters involved in the design of this fiber-reinforced composite material are the fiber orientation, number of layers, stacking sequence and laminate thickness. Water pressure in the rotor of the turbine is obtained from a coupled fluid-dynamic simulation (CFD), whose detail can be found in the reference Oller et al. (2012). The main purpose of this paper is to achieve a very low inertia rotor minimizing the start-stop effect, because it is applied in axial water flow turbine currently in design by the authors, in which is important to take the maximum advantage of the kinetic energy. The FEM simulation codes are engineered by CIMNE (International Center for Numerical Method in Engineering, Barcelona, Spain), COMPack for the solids problem application, KRATOS for fluid dynamic application and RMOP for the structural optimization. To validate the procedure here presented, many turbine rotors made of composite materials are analyzed and three of them are compared with the steel one.
dc.format.extent16 p.
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subjectÀrees temàtiques de la UPC::Energies::Energia hidràulica
dc.subject.lcshHydraulic turbines--Design and construction
dc.subject.otherWater current turbines (WCT)
dc.subject.otherComposite materials
dc.subject.otherRotor turbine design and analysis
dc.subject.otherFinite element method (FEM)
dc.subject.otherMulti-objective Optimization
dc.titleAn integrated procedure for the structural design of a composite rotor-hydrofoil of a Water Current Turbine (WCT)
dc.subject.lemacTurbines hidràuliques
dc.contributor.groupUniversitat Politècnica de Catalunya. (MC)2 - Grup de Mecànica Computacional en Medis Continus
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorOller, S.; Nallim, L.; Oller, S.
local.citation.publicationNameApplied composite materials

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