Home > List of Keywords > *SUPERLOAD
*SUPERLOAD
Data format:
One lines with an arbitrary number of additional lines
ILOAD IPRO Nbload
Iend(1) Fload_X(1) Fload_Y(1) BuoyUpH(1) BuoyDownH(1) BuoyDiam(1) BuoyDryWeight(1)
...
Iend(Nbload) Fload_X(Nbload) Fload_Y(Nbload) BuoyUpH(Nbload) BuoyDownH(Nbload) BuoyDiam(Nbload) BuoyDryWeight(Nbload)
Status :
Optional when super elements are used
Purpose :
To define loads (Forces or Buoyancy modules) to be applied on intermediate nodes of a super elements (see SUPERLINE and SUPERPRO)
Restriction :
A property with identification number IPRO must have been previously defined.
This keyword brings additional information on the associated keywords *SUPERPRO
By definition, Nbload must be greater than 1 and lower than Nbsegment 1, Nbsegment is defined with *SUPERPRO.
Details :
First line :
| Parameter | Description |
|---|---|
| ILOAD | identification number of the following set of loadings |
| IPRO | identification number of associated SUPER properties defined |
| with *SUPERPRO | |
| Nbload | Number of loadings on the super element |
One line for each loading :
| Parameter | Description |
|---|---|
| Iend(i) | Intermediate node number. If the SUPERLINE is composed of 3 segments, two (Nbsegment 1) intermediate nodes are created. Iend = 1 is the first intermediate node, that is to say the node between the first and the second segment Iend = 2 is the second intermediate node, that is to say the node between the second and the last segment. |
| Fload_X(i) | Force in the horizontal plane of the superline defined by both ends (N) |
| Fload_Z(i) | Force in the vertical plane (N) |
| BuoyUpH(i) | Part length above Iend(i) (N/m) |
| BuoyDownH(i) | Part length below Iend(i) (m) |
| BuoyDiam(i) | Buoy diameter (m). |
| BuoyDryWeight(i) | Buoy dry weight (N). |
Note :
BuoyDiam (noted d) and BuoyDryWieght (w) are used to calculate the buoyancy force and the hydrostatic stiffness.
\(BuoyForce = \Bigl( \rho \ldotp h \ldotp \pi \ldotp g \frac{d^2}{4} - w\Bigr)\) where \(h\) is the buoy draft.
