468
M. Dutkiewicz and M. R. Machado
(a)
(b)
(c)
0
1 0
2 0
3 0
4 0
5 0
6 0
7 0
8 0
9 0 1 0 0
Frequency [Hz]
10
-1
10
0
10
1
10
2
10
3
10
4
Receptance [dB ms
-2
/N]
FRF natural vibrations
0
2
4
6
8
1 0 12 14 16 18 20
Frequency [Hz]
10
-1
10
0
10
1
10
2
10
3
10
4
Receptance [dB ms
-2
/N]
FRF natural vibrations
1
2
3
4
5
6
7
8
9
1 0
Time [s]
-3
-2.5
-2
-1.5
-1
-0.5
0
0.5
1
1.5
Acceleration [m/s2]
10
4
Time history natural vibrations
Fig. 2 FRF and time history natural vibrations, a FRF from simulation for A = 262 mm 2 , tension
force T = 100 kN, b zoom image in 0–20 Hz frequency band, c time history vibrations in the range
from 0 to 10 s
Fig. 3 Non-stationary wind
speed signal used for
simulation
0
1 0
2 0
3 0
40
50
60
70
80
90
100
Time, [s]
-0.4
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
Wind speed, [m/s]