The data input in these data categories relates to the type of analysis required and the program being used.
The data that may be input via Data Categories 9 to 18 may be summarized for each program as follows. Data Categories which require no input have been omitted.
Aqwa-Line
Drift Added Mass and Damping (only used for scaling, Data Category 16)
Data Category 16 - Geometrical Changes
Length Scaling of Results
Mass Scaling of Results
Change of Body's Center of Gravity
Change of Body's Inertia
Definition of New Hydrodynamic Reference Point
Data Category 18 - Printing Options for Nodal RAOs
Aqwa-Librium
Data Category 9 - Drift Added Mass and Damping
Data Category 10 - Hull Drag
Current Drag Coefficients
Wind Drag Coefficients
Thruster Forces
Data Category 11 - Current Velocity Profile and Direction
Data Category 12 - Elimination of Degrees of Freedom
Articulations between Bodies
Articulations between Global Points and Bodies
Data Category 13 - Wave Spectra Details
Data Category 14 - Mooring Lines
Data Category 15 - Motion Analysis Starting Positions
Data Category 16 - Iteration Limits
Data Category 18 - Printing Options for Nodal Positions
Aqwa-Fer
Data Category 9 - Drift Added Mass and Damping
Data Category 10 - Hull Drag
Current Drag Coefficients
Wind Drag Coefficients
Thruster Forces
Data Category 12 - Elimination of Degrees of Freedom
Articulations between Bodies
Articulations between Global Points and Bodies
Data Category 13 - Wave Spectra Details
Data Category 14 - Hawser/Mooring Lines
Data Category 15 - Motion Analysis Starting Positions
Data Category 18 - Printing Options for Nodal Positions
Aqwa-Naut
Data Category 10 - Hull Drag
Current Drag Coefficients
Wind Drag Coefficients
Thruster Forces
Data Category 11 - Current Velocity, Direction and Profile
Wind Velocity and Direction
Data Category 12 - Elimination of Degrees of Freedom
Articulations between Bodies
Articulations between Global Points and Bodies
Data Category 13N - Regular Wave Properties - default analysis
Data Category 13 - Wave Spectrum Details - irregular wave analysis
Data Category 14 - Hawser/Mooring Lines
Data Category 15 - Motion Analysis Starting Positions
Data Category 16 - Time Integration Parameters
Data Category 17 - Hydrodynamic Scaling Factors for Morison Elements
Data Category 18 - Printing Options for Nodal positions
Aqwa-Drift
Data Category 9 - Drift Added Mass and Damping
Yaw Rate Drag Coefficient
Data Category 10 - Hull Drag
Current Drag Coefficients
Wind Drag Coefficients
Thruster Forces
Data Category 11 - Current/Wind Velocity and Direction (only when no spectrum)
Data Category 12 - Elimination of Degrees of Freedom
Articulations between Bodies
Articulations between Global Points and Bodies
Data Category 13 - Wave Spectrum Details
Data Category 14 - Hawser/Mooring lines
Data Category 15 - Motion Analysis Starting Positions for both Wave and Drift Frequency Motions
Data Category 16 - Time Integration Parameters
Data Category 18 - Printing Options for Nodal Positions
Additional Data Requirements for Towed and Installed Tethers
For Aqwa-Librium, Aqwa-Naut and Aqwa-Drift the following data is required in addition to whatever may be necessary for other modelling requirements, as given in the descriptions above.
Data Category 11 (for towed tethers)
Current speed and direction
Tow speed and direction
Data Category 13 (for towed tethers)
Tow speed and direction
Description of tether elements and boundary conditions
Fatigue and extreme value information (for towed tethers in Aqwa-Drift only)
Data Category 15 (for towed tethers)
Initial position of the vessel, which must be the same as the coordinate of the center of gravity
Data Category 17 (for towed tethers)
Slam coefficient multiplier if required
Frequency of tether information output to both the listing file and the plot file
Start and finish times for the statistical/fatigue analysis (for towed tethers in Aqwa-Drift only)