Environmental Engineering Reference
In-Depth Information
150
100
50
0
-50
-100
-150
0
1
2
3
4
5
6
7
8
9
10
Time (s)
Figure 11: Strain time-history recorded at the tower base point for rotational
speed of 0 rad/s .
10
6
10
5
10
4
10
3
10
2
0
2
4
6
8
10
12
14
16
18
20
Frequency (Hz)
Figure 12: Fourier amplitude of strain response at tower base point for rotational
speed of 0 rad/s.
6 Offshore towers
Recent expansion in the wind energy sector has seen an associated growth in
energy production from offshore wind farms. Hence, turbines are becoming larger
with taller towers and are being moved further out to sea. As a result the wind
Search WWH ::
Custom Search