u - NREL
u - NREL
u - NREL
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Land-Based Tower<br />
Mode Shapes<br />
Tower section height / h<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
-0.06 -0.02 0.02 0.06 0.1<br />
Modal displacement<br />
National Renewable Energy Laboratory<br />
1st F-A<br />
2nd F-A<br />
3rd F-A<br />
h=87.6 m<br />
Tower section height / h<br />
1<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0<br />
-0.1 0 0.1 0.2 0.3<br />
Modal displacement<br />
1st S-S<br />
2nd S-S<br />
3rd S-S<br />
1st S-S (twist part)<br />
2nd S-S (twist part)<br />
3rd S-S (twist part)<br />
1st Twist<br />
1st Twist (S-S part)<br />
21<br />
Innovation for Our Energy Future
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