Vibration analysis
Eigenvalue analysis of ship superstructure using Femap/NX Nastran Software. Detailed simulation of 3 top decks and mast construction.
The vibrations indicated below:
2.407 Hz 
2.557 Hz
3.515 Hz 
5.982 Hz 
6.134 Hz 
6.553 Hz
11.462 Hz 
15.119 Hz 
17.683 Hz 
19.816 Hz