Table 7. Natural frequencies measured in LLSS of second vibration test
X
Y
Z
Main mode
Initial
239.00
119.78
179.31
Sine burst
240.33
120.45
177.34
Random
228.67
124.51
158.78
Shift (%)
10.33 (4.3)
4.73 (3.9)
20.53 (11.45)