Weidinger, PaulaPaulaWeidingerSong, ZihangZihangSongHeller, MarcelMarcelHellerZhang, HongkunHongkunZhangEustorgi, KarinKarinEustorgi2023-11-082023-11-082022https://publica.fraunhofer.de/handle/publica/4566452-s2.0-85143254301The torque input to nacelles is of great importance for the efficiency determination of these nacelles. For a reliable and traceable torque measurement in nacelle test benches, a torque transfer standard is installed in the drive train directly at the rotor hub of the nacelle and certain combinations of torque and rotational speed, so-called characterisation maps, are applied and measured. In doing so, the torque measurement in the 10 MW nacelle test bench DyNaLab at Fraunhofer IWES is characterised metrologically up to 5 MN m in form of a relative indication deviation including the corresponding expanded measurement uncertainty.enconference paper