Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation

Adaptive composite propeller blades showing bend twist behaviour have received increasing interest from hydrodynamic and structural engineers. When exposed to periodic loading conditions, such propellers can be designed to have higher energy efficiency and emit less noise and vibration than conventi...

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Autores principales:	Sondre Østli Rokvam, Nils Petter Vedvik, Lukas Mark, Eivind Rømcke, Jon Schawlann Ølnes, Luca Savio, Andreas Echermeyer
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	composites propellers bend-twist FEA DIC experimental verification Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/17942540d83c434eb2fedaa7aa350f3c
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spelling	oai:doaj.org-article:17942540d83c434eb2fedaa7aa350f3c2021-11-11T18:46:44ZExperimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation10.3390/polym132137662073-4360https://doaj.org/article/17942540d83c434eb2fedaa7aa350f3c2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4360/13/21/3766https://doaj.org/toc/2073-4360Adaptive composite propeller blades showing bend twist behaviour have received increasing interest from hydrodynamic and structural engineers. When exposed to periodic loading conditions, such propellers can be designed to have higher energy efficiency and emit less noise and vibration than conventional propellers. This work describes a method to produce an adaptive composite propeller blade and how a point load experiment can verify the predicted elastic response in the blade. A 600 mm-long hollow full-size blade was built and statically tested in the laboratory. Finite element modelling predicted a pitch angle change under operational load variable loads of 0.55°, a geometric change that notably compensates for the load cases. In the laboratory experiment, the blade was loaded at two points with increasing magnitude. The elastic response was measured with digital image correlation and strain gauges. Model predictions and experimental measurements showed the same deformation patterns, and the twist angle agreed within 0.01 degrees, demonstrating that such propellers can be successfully built and modelled by finite element analysis.Sondre Østli RokvamNils Petter VedvikLukas MarkEivind RømckeJon Schawlann ØlnesLuca SavioAndreas EchermeyerMDPI AGarticlecompositespropellersbend-twistFEADICexperimental verificationOrganic chemistryQD241-441ENPolymers, Vol 13, Iss 3766, p 3766 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	composites propellers bend-twist FEA DIC experimental verification Organic chemistry QD241-441
spellingShingle	composites propellers bend-twist FEA DIC experimental verification Organic chemistry QD241-441 Sondre Østli Rokvam Nils Petter Vedvik Lukas Mark Eivind Rømcke Jon Schawlann Ølnes Luca Savio Andreas Echermeyer Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation
description	Adaptive composite propeller blades showing bend twist behaviour have received increasing interest from hydrodynamic and structural engineers. When exposed to periodic loading conditions, such propellers can be designed to have higher energy efficiency and emit less noise and vibration than conventional propellers. This work describes a method to produce an adaptive composite propeller blade and how a point load experiment can verify the predicted elastic response in the blade. A 600 mm-long hollow full-size blade was built and statically tested in the laboratory. Finite element modelling predicted a pitch angle change under operational load variable loads of 0.55°, a geometric change that notably compensates for the load cases. In the laboratory experiment, the blade was loaded at two points with increasing magnitude. The elastic response was measured with digital image correlation and strain gauges. Model predictions and experimental measurements showed the same deformation patterns, and the twist angle agreed within 0.01 degrees, demonstrating that such propellers can be successfully built and modelled by finite element analysis.
format	article
author	Sondre Østli Rokvam Nils Petter Vedvik Lukas Mark Eivind Rømcke Jon Schawlann Ølnes Luca Savio Andreas Echermeyer
author_facet	Sondre Østli Rokvam Nils Petter Vedvik Lukas Mark Eivind Rømcke Jon Schawlann Ølnes Luca Savio Andreas Echermeyer
author_sort	Sondre Østli Rokvam
title	Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation
title_short	Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation
title_full	Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation
title_fullStr	Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation
title_full_unstemmed	Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation
title_sort	experimental verification of the elastic response in a numeric model of a composite propeller blade with bend twist deformation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/17942540d83c434eb2fedaa7aa350f3c
work_keys_str_mv	AT sondreøstlirokvam experimentalverificationoftheelasticresponseinanumericmodelofacompositepropellerbladewithbendtwistdeformation AT nilspettervedvik experimentalverificationoftheelasticresponseinanumericmodelofacompositepropellerbladewithbendtwistdeformation AT lukasmark experimentalverificationoftheelasticresponseinanumericmodelofacompositepropellerbladewithbendtwistdeformation AT eivindrømcke experimentalverificationoftheelasticresponseinanumericmodelofacompositepropellerbladewithbendtwistdeformation AT jonschawlannølnes experimentalverificationoftheelasticresponseinanumericmodelofacompositepropellerbladewithbendtwistdeformation AT lucasavio experimentalverificationoftheelasticresponseinanumericmodelofacompositepropellerbladewithbendtwistdeformation AT andreasechermeyer experimentalverificationoftheelasticresponseinanumericmodelofacompositepropellerbladewithbendtwistdeformation
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Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation

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