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- Title
Radar‐based structural health monitoring of wind turbine blades: The case of damage localization.
- Authors
Arnold, Philip; Moll, Jochen; Mälzer, Moritz; Krozer, Viktor; Pozdniakov, Dimitry; Salman, Rahmi; Rediske, Stephan; Scholz, Markus; Friedmann, Herbert; Nuber, Andreas
- Abstract
Abstract: This short communication reports on a radar approach for structural health monitoring of wind turbine blades. Therefore, a bistatic frequency‐modulated continuous wave (FMCW) radar in the frequency range from 33.4 to 36.0 GHz has been developed and tested experimentally using a laboratory wind turbine demonstrator. A differential damage localization framework is presented here that exploits signal differences between measurements from the intact and the damaged structure for 3D imaging of the defect. We have achieved the localization of a 30‐mm cut in a glass fiber composite structure as well as the localization of a water pack at the backside of the specimen with a localization error of several centimeters.
- Subjects
WIND turbine blades; STRUCTURAL health monitoring; THREE-dimensional imaging; CONTINUOUS wave radar; COMPOSITE materials
- Publication
Wind Energy, 2018, Vol 21, Issue 8, p676
- ISSN
1095-4244
- Publication type
Article
- DOI
10.1002/we.2184