Environmental Engineering Reference
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Figure 15: PSD function of 'moderate' wave elevation.
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Figure 16: Wave force at node 3 for 'moderate' wave excitation.
a wind loading with mean wind speed of 18 m/s at a level of 10 m. Also, shown in
Fig. 16 is the wave force time-history at node 3 of the structural model in Fig. 13
for 'moderate' wave excitation [71].
6.4 Vibration control of offshore towers
As in the case with onshore wind turbine towers several structural vibration con-
trol strategies could be adopted. The use of passive control devices such as TMD,
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