Next Article in Journal
Mono–Material 4D Printing of Digital Shape–Memory Components
Next Article in Special Issue
Effect of Drawing Parameters on the Properties of Polypropylene/Inorganic Particles Composites by Solid-State Die Drawing
Previous Article in Journal
Antibacterial and Antifungal Properties of Electrospun Recycled PET Polymeric Fibers Functionalized with Zinc Oxide Nanoparticles
Previous Article in Special Issue
Systematic Literature Review of the Effect of Layered Double Hydroxides on the Mechanical Properties of Rubber
 
 
Article

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

1
Department of Mechanical and Industrial Engineering (MTP), Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
2
SINTEF Ocean, Otto Nielsens vei 10, 7052 Trondheim, Norway
3
Kongsberg University Technology Centre “Performance in a Seaway” at NTNU, N-7491 Trondheim, Norway
*
Author to whom correspondence should be addressed.
Academic Editor: Shazed Aziz
Polymers 2021, 13(21), 3766; https://doi.org/10.3390/polym13213766
Received: 9 September 2021 / Revised: 26 October 2021 / Accepted: 28 October 2021 / Published: 30 October 2021
(This article belongs to the Special Issue Polymer Composites for Structural Applications)
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. View Full-Text
Keywords: composites; propellers; bend-twist; FEA; DIC; experimental verification composites; propellers; bend-twist; FEA; DIC; experimental verification
Show Figures

Graphical abstract

MDPI and ACS Style

Rokvam, S.Ø.; Vedvik, N.P.; Mark, L.; Rømcke, E.; Ølnes, J.S.; Savio, L.; Echermeyer, A. Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation. Polymers 2021, 13, 3766. https://doi.org/10.3390/polym13213766

AMA Style

Rokvam SØ, Vedvik NP, Mark L, Rømcke E, Ølnes JS, Savio L, Echermeyer A. Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation. Polymers. 2021; 13(21):3766. https://doi.org/10.3390/polym13213766

Chicago/Turabian Style

Rokvam, Sondre Østli, Nils Petter Vedvik, Lukas Mark, Eivind Rømcke, Jon Schawlann Ølnes, Luca Savio, and Andreas Echermeyer. 2021. "Experimental Verification of the Elastic Response in a Numeric Model of a Composite Propeller Blade with Bend Twist Deformation" Polymers 13, no. 21: 3766. https://doi.org/10.3390/polym13213766

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop