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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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Discussion papers
https://doi.org/10.5194/wes-2019-60
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2019-60
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 07 Oct 2019

Submitted as: research article | 07 Oct 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Wind Energy Science (WES).

Development and feasibility study of segment blade test methodology

Kwangtae Ha, Moritz Bätge, David Melcher, and Steffen Czichon Kwangtae Ha et al.
  • Fraunhofer Institute for Wind Energy Systems, Department Rotor Blades, Bremerhaven, 27572, Germany

Abstract. This paper outlines a novel segment test methodology for wind turbine rotor blades. The segment test mainly aims at improving the efficiency of the fatigue test as a future test method at Fraunhofer IWES. While resulting in reduced testing times, target fatigue bending moments over the intended test area have to be matched within an acceptable range of overload. The numerical simulation reveals that the proposed segment testing has a significant time saving up to 43 % and 53 % for 60 m and 90 m blades. When compared to the experimental data of 60 m full-length blade fatigue test, the proposed methodology also shows better test quality over the intended area and better certifiable regions over the outboard area.

Kwangtae Ha et al.
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Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Kwangtae Ha et al.
Kwangtae Ha et al.
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Short summary
This paper outlines a novel segment test methodology for wind turbine rotor blades. It mainly aims at improving the efficiency of the fatigue test as a future test method at Fraunhofer IWES. The numerical simulation reveals that this method has a significant time saving up to 43 % and 53 % for 60 m and 90 m blades, while improving test quality within an acceptable range of overload. This test methodology could be a technical solution for the future offshore rotor blades longer than 100 m in length.
This paper outlines a novel segment test methodology for wind turbine rotor blades. It mainly...
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