Total hydro loads sensor
The Total loads sensor can be added from the Special sensors button as shown in the figure below
The Total loads sensor provides the following fields:
Field | Unit | Description |
Morison drag loads, magnitude | kN | Sum of the forces corresponding to the drag part of the Morison equation |
Morison inertia loads (wave), magnitude | kN | Sum of the forces corresponding to the inertia part of the Morison equation due to the water particle acceleration in the wave |
Morison inertia loads (movement), magnitude | kN | Sum of the forces corresponding to the inertia part of the Morison equation due to the motion of the structure |
Heave plate drag loads, magnitude | kN | Sum of the forces corresponding to the drag part of the Morison equation on heave plates |
Heave plate inertia loads, magnitude | kN | Sum of the forces corresponding to the inertia part of the Morison equation onheave plates |
Heave plate Fourde-Krylov loads, positive up | kN | Sum of the Froude-Krylov forces on the heave plates. This option has to be enables in the Analysis parameters |
Buoyancy loads | kN | 3-component vector with the sum of the buoyancy forces on the structure |
Buoyancy loads, magnitude | kN | magnitude of the buoyancy loads vector |
Buoyancy springs | kN | 3-component vector with the sum of the buoyancy spring forces on the structure |
Buoyancy springs, positive up | kN | magnitude of the buoyancy sprinfs vector |
Total buoyancy | kN | sum of the buoyancy and the buoyancy springs |
Seabed stiffness loads, magnitude | kN | loads due to the stiffness of the seabed (see the Mooring system part for more info) |
Seabed friction loads, magnitude | kN | loads due to the friction of the seabed (see the Mooring system part for more info) |
Gravity + buoyancy | kN | sum of the buoyancy loads and the loads due to gravity |
G+ buoy.+ seabed stiffness | kN | sum of the loads due to gravity, the buoyancy and the loads due to the stiffness of the seabed |
Note: by default, only the hydrodynamic forces acting perpendiculary to the element axis are calculated with the Morison equation on regular elements. To obtain loads in the axial direction as well, the element must include Heave plate drag and inertia coefficients (see the Cross sections keyword in the Keywords section)