A joint work related to the Radkom-QS project has been accepted for publication in the Structural Health Monitoring journal.
This paper presents the design and experimental realization of a cooperative radar network for structural health monitoring of wind turbine blades. Therefore, 40 radar sensors operating in the frequency band from 58-63.5 GHz are partially embedded and partially glued into a 31m long blade during manufacturing. The sensors are distributed over the entire blade based on previous high-frequency electromagnetic simulations. Full-scale fatigue tests have been performed under controlled laboratory conditions. In addition, holes have been drilled into the blade by hand as well-defined and relatively small damage. During the experimental campaign measurements from the complete radar network have been transferred to a base station through a wireless link. Finally, it was demonstrated that fatigue as well as artificial damage could be detected accurately using a damage indicator approach.
Simon, J.; Kurin, T.; Moll, J.; Bagemiel, O.; Wedel, R.; Krause, S.; Lurz, F.; Nuber, A.; Issakov, V. & Krozer, V., Embedded Radar Networks for Damage Detection in Wind Turbine Blades: Validation in a Full-scale Fatigue Test, Structural Health Monitoring, 2022 (accepted in December 2022)