u - NREL
u - NREL
u - NREL
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Tower section height / H<br />
Monopile-Supported Turbine<br />
Mode Shapes<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
2nd F-A<br />
MSL<br />
Mud Line<br />
3rd F-A<br />
EF Model Fixity Line<br />
0<br />
-0.08 -0.04 0 0.04 0.08 0.12<br />
National Renewable Energy Laboratory<br />
Modal displacement<br />
1st F-A<br />
Modes<br />
" "<br />
2nd S-S (EF)<br />
2nd S-S (ECS)<br />
3rd F-A (DS)<br />
3rd F-A (EF)<br />
xx<br />
DS Model<br />
EF Model<br />
ECS Model<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
2nd Twist<br />
MSL<br />
Mud Line<br />
EF Model Fixity<br />
Li<br />
0 0.05 0.1 0.15 0.2 0.25 0.3<br />
Modal displacement<br />
1st Twist<br />
Modes<br />
" "<br />
2nd S-S (EF)<br />
2nd S-S (ECS)<br />
DS Model<br />
EF Model<br />
ECS Model<br />
26<br />
Innovation for Our Energy Future
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