Flexcom > Data Inputs > $LOAD CASE

Purpose

To specify thruster loads on a moored vessel.

Theory

Refer to Thruster Loads for further information on this feature.

Keyword Format

Blocks of three lines defining the thruster data repeated as often as necessary:

AXIS=Axis Option

TIME=Start Time, End Time

Y-Coordinate of Thruster Location, Z-Coordinate of Thruster

Location, Thruster Load, Thruster Load Direction

The keyword is only relevant to mooring analyses. Axis Option can be GLOBAL or LOCAL.

Table Input

Input:	Description
Axis:	The axis system in which the thruster data is defined. The default of Global naturally specifies the global coordinate axes; the alternative is Local, which specifies the local vessel axis system centred at the vessel COG. See Note (a).
Start Time:	The analysis time at which the thrusters start operating.
End Time:	The analysis time at which the thrusters stop operating.
Y-Coordinate Location:	The y-coordinate of the thruster location in the local vessel axis system.
Z-Coordinate Location:	The z-coordinate of the thruster location in the local vessel axis system.
Thruster Load:	The thruster load.
Angle of Thrust :	The angle of operation of the thruster load measured in degrees anticlockwise from the global Y axis or the local vessel y axis, depending on which system you nominated using Axis above

Notes

(a)If you define thruster data in the global axes, then the direction of the thruster load is constant over the duration for which the thruster is operating. If on the other hand you nominate local axes, then the direction of the thruster load is constant relative to the vessel axis system.