- PBIS - Print Force Components at Each Iteration Step
(B) This option causes the program to output the component forces acting on each structure (e.g. gravity, hydrostatic, current, and mooring forces) for each iteration in the search for equilibrium.
(DN) Prints out positions and forces on each structure at each integration stage; i.e. twice per timestep. The scope of the printout can be controlled by selections in Data Category 18.
- PFLH - Print Fer Low & High Frequency
(F) With this option Aqwa-Fer will output separate drift (low) and wave frequency (high) significant values of all parameters. Drift (low) frequencies are defined as those below the lowest frequency in the wave spectrum.
- PPEL - Print Properties of Each Element
(BDFLN) This option allows the user to output complete details of each element used in the body modeling. All important details of the body elements are output together with the resultant properties of the bodies. It is only applicable when running Stage 1 of the analysis.
- PRAF - Print All Freedoms
(BDFN) This option allows the user to output results for all freedoms, even if some have been de-activated using the DACF data record in Data Category 12.
- PRAS - Print Articulation (Reaction) Spectrum
(F) Prints spectrum of articulation reactions, in the global axes.
- PRCE - Print Data Record Echo for Data Categories 1 TO 5
(BDFLN) This option informs the program to output the input received by the program in reading Data Categories 1 to 5. This is the body modeling.
- PRCS - Print Coupled Spectra
This Option has been Withdrawn
(F) Prints fully-coupled matrix for force spectrum (PRFS), response spectrum (PRRS) and the transfer matrix (PRTI).
- PRFS - Print Force Spectral Density Matrix at Spectrum Integration POINTS
(F) This option is used to output the wave force spectra for both drift and wave frequency at the integration points of the response spectrum for the direction of the corresponding wave spectrum. By default, this option only outputs the leading diagonal of this matrix, which therefore omits the information relating to the phase between the freedoms of the structures.
The forces are in the fixed reference axis system.
- PRPR - Print Pressures
(L) This option is used to output the total hydrostatic varying and hydrodynamic pressures at the diffraction element centers, and the total hydrodynamic pressures (unit in heads of water) at the field points in an Aqwa-LINE model.
Note: The hydrodynamic pressures on the field points are not output when vessel travels with a constant speed in multiple wave directions.
- PRPT - Print Potentials
(L) This option is used to output the modified and unmodified values of the potential at the diffraction element centers. This information may be used to define the fluid flow field about the body. Detailed information on the composite potential can be found in the Aqwa Theory Manual.
The format of the composite potential output in the .LIS file is as follows:
- Double symmetric body
Type #1 composite potentials are printed at the diffraction elements and at the field points in the first quadrant of the fluid region around the body Type #2 composite potentials are printed at the diffraction elements and at the field points in the second quadrant of the fluid region around the body Type #3 composite potentials are printed at the diffraction elements and at the field points in the third quadrant of the fluid region around the body Type #4 composite potentials are printed at the diffraction elements and at the field points in the fourth quadrant of the fluid region around the body - Single symmetric body
Type #1 composite potentials are printed at the diffraction elements and at the field points in the first half of the fluid region around the body Type #2 composite potentials are printed at the diffraction elements and at the field points in the second half of the fluid region around the body
- PRRI - Print RAOS at Spectra Integration Points
(F) This option is used to output the fully coupled RAOs which are used to calculate the response spectrum. The peak values will, in general, not be contained in the output, as it is not necessary for accurate integration of the response spectra, which is achieved in Aqwa-Fer within one percent. However, the peak value will never exceed the values output by more than 80 percent, as long as the damping exceeds one half percent critical.
Note that these RAOs are calculated for the direction of the corresponding spectra in the fixed reference axis system.
- PRRP - Print Recalculated Parameters
(F) Informs Aqwa-Fer to print certain parameters where they are recalculated for each spectrum. At present, this applies to the CRAO option and also causes the undamped and damped natural frequencies to be output, for each spectrum, for each mooring configuration.
- PRRS - Print Response Spectrum at Spectra Integration Points
(F) This option is used to output the response spectrum at the integration points of the response spectra for the fully coupled system of the equations of motion. By default, this option only outputs the leading diagonal of this matrix, which therefore omits the information relating to the phase between the freedoms of the structures.
The response is in the fixed reference axis system.
- PRSS - Print Source Strengths
(L) Informs Aqwa-Line to output the source strengths and the composite source strengths if structural geometric properties are employed. The composite strengths are linear combinations of source strengths at the diffraction element centers on the all the quadrants or halves of the hull surface. Detailed information on the composite source strength can be found in the Aqwa Theory Manual.
The format of the composite source strength output in the .LIS file is as follows:
- Double symmetric body
Type #1 composite source strengths are printed at the diffraction elements in the first quadrant of the hull surface Type #2 composite source strengths are printed at the diffraction elements in the second quadrant of the hull surface Type #3 composite source strengths are printed at the diffraction elements in the third quadrant of the hull surface Type #4 composite source strengths are printed at the diffraction elements in the fourth quadrant of the hull surface - Single symmetric body
Type #1 composite source strengths are printed at the diffraction elements in the first half of the hull surface Type #2 composite source strengths are printed at the diffraction elements in the second half of the hull surface
- PRST - Print Global Stiffness Matrix
(B) This option causes the global stiffness matrix, which is computed in equilibrium analysis (Stage 5), to be output.
- PRTI - Print Transfer Matrix at Spectra Integration Points
(F) This option is used to output the transfer matrix at the integration points of the response spectra for the fully coupled system of the equations of motion. By default, this option only outputs the leading diagonal of this matrix, which therefore omits the information relating to the phase between the freedoms the structures. Do not use this option if the information is not required, as the computing costs are substantially increased during integration of the wave frequency motions.
- PRTS - Print Tension and Reaction Spectra
(F) This option is used to output significant value, Tz and spectral density for tension in composite moorings and articulation reactions. These results are written to the .LIS file only; they are not yet available for plotting in the AGS.
Articulation reactions are output in the local articulation axes (LAA) if the LAAR option is on, or in the local structural axes (LSA) if the LSAR option is on. By default, they are output in the fixed reference frame (FRA).