In this case the hull is going to be loaded with the hydrostatic pressure of water, simulating a real wave. For doing this, choose:
Data -> Loads -> Wave loads
To assign the properties to the shell, the values are:
- The Amplitude (half the effective height) introduced is 0, which means that there is a calmed sea situation.
- Hog and Sag are two typical wave load situations for ship structure study.
- It is necessary set a ship-wave reference by choosing two points (extreme points in bow and stern). It is advisable to choose extreme with smaller X coordinate as (X1,Y1,Z1).
- Select the desired wave profile .
- Once the wave loads have been assigned, and the model meshed, resultant wave forces and resultant bending moment can be calculated (Calculate button ). The reultant bending moment is given for the hull extreme with smaller X.
- It is also possible, once this Moment and Resultant have been calculated, to generate (WriteResFile button) a GiD postprocess file for pressure forces visualization over the hull.
![]() |
|
Once the values are filled in, the condition must be assigned to the surfaces desired to have this kind of load (the whole hull). The assigned conditions can be viewed with the Draw button in the conditions window .