252 J. Luthe et al. a 0.050 0.000 −0.050 qTw y (t) [mm] Ref. MDE 0 20 40 60 2.000 0.000 −2.500 Time t [s] Error [%] 1.500 0.000 −2.000 qTw z (t) [mm] Ref. MDE 0 20 40 60 5.000 0.000 −3.000 Time t [s] Error [%] b 0.001 0.000 −0.001 qB y (t) [mm] Ref. MDE 0 20 40 60 40.000 0.000 −40.000 Time t [s] Error [%] 4.000 0.000 −4.000 qB z (t) [mm] Ref. MDE 0 20 40 60 30.000 0.000 −40.000 Time t [s] Error [%] c 19 20 21 22 23 24 25 0.001 0.000 −0.001 Time t [s] qB y (t) [mm] Ref. MDE Fig. 25.4 Reference and estimated transversal displacements (a) within the tower substructure at 20% off the tower base in y- and z-direction, q Tw y (t) and q Tw z (t), (b) within the blade substructure at 20% off the blade root in y- and z-direction, q B y (t) and q B z (t), (c) Detailed view of q B B (t). Results for the selected load case are shown in 25.4. Due to the limited amount of space, not the entire displacement field of the substructures is presented here. Instead, two specific locations 20% off the tower base and 20% off the blade root, respectively, are arbitrarily selected for comparing the estimated to the reference lateral displacements.
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