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Proceedings 2017, 1(7), 694; doi:10.3390/proceedings1070694

Experimental Validation of the Structural Integrity of Modular Horizontal Axis Wind Turbine Blades

Department of Engineering and Mathematics, Sheffield Hallam University, Sheffield S1 1WB, UK
Presented at the Sustainable Places 2017 conference (SP2017), Middlesbrough, UK, 28–30 June 2017.
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Published: 3 November 2017
(This article belongs to the Proceedings of the Sustainable Places 2017 (SP2017) Conference)
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Abstract

The production, transportation and repair of long horizontal axis wind turbine blades measuring up to 85 m require expensive specialist machinery that increases the capital cost of wind power generation. A modular blade design is a potential solution to these problems however; the inclusion of joints could make the modular blades inherently weaker. This work investigates the effect of post-tensioned tendons on the structural integrity of modular blades, through cantilever deflection and tensile tests conducted on 3D printed small-scale prototypes. The experiment indicates 43% and 15.4% reduction in blade tip displacement and deflection caused by cyclic loading, respectively, in case of modular design with tendons compared to without tendons design.
Keywords: Modular Wind Turbines; Wind Energy; Structural integrity Modular Wind Turbines; Wind Energy; Structural integrity
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Asthana, A.; Mukherjee, S.; Mountney, S.; Griffiths, R. Experimental Validation of the Structural Integrity of Modular Horizontal Axis Wind Turbine Blades. Proceedings 2017, 1, 694.

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