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*POSTSNAP
Data format :
Two lines with 5 and 4 values respectively, followed by a third line as follows:
ISTDYN ICURV ICH1 ICH2 NODE_BA
ISTEP ICSV IANG IFI
IGR(1) IGR(2) ... IGR(N)
Status :
Optional
Purpose :
To get dynamic or static snapshots results directly from the FE solver.
Details :
| Parameter | Description |
|---|---|
| ISTDYN | = 0 Static or Quasi-static request (TYP2 = QS) = 1 Time domain request (TYP2 = TD) |
| ICURV | = 1 : Displacements (TYP = DIS) = 2 : Forces (TYP = TEFF) = 3 : Strain/Curvature (TYP = CURV) = 4 : Angle (TYP = ANG) = 5 : Built-in angle (TYP = BANG) |
| ICH1 | Code used to specify the type of outputs. See codes in the next tables. |
| ICH2 | Code used to specify the type of outputs. See codes in the next tables. |
| NODE_BA | Reference node for built-in angle calculation |
| IWRITE | If IWRITE=1, The files associated with the time series are also created (see *POSTPROC) |
| ISTEP | Time or step to write the requested output |
| ICSV | Flag for the output file format (optional) = 0, text format without header and footer = 1, csv format with header and footer |
| IANG | Flag the unit of angles and rotations (optional) = 0, angles and rotations are expressed in radians in the output file = 1, angles and rotations are expressed in degrees in the output file |
| IFI | IFI (optional): flag for outputs filename = 0, filename includes analysis name = 1, filename does not include analysis name |
| IGR(1) ... IGR(N) | Identification numbers of the groups of elements for which the results have to be calculated |
The next tables detail the codes to be used for ICH1 and ICH2 parameters function of the selected output.
| Selected Output | ICURV | ICH1 | ICH2 |
|---|---|---|---|
| X-position | 1 | 1 | 1 |
| Y-position | 1 | 1 | 2 |
| Z-position | 1 | 1 | 3 |
| Pseudo rotation around X | 1 | 1 | 4 |
| Pseudo rotation around Y | 1 | 1 | 5 |
| Pseudo rotation around Z | 1 | 1 | 6 |
| Absolute XYZ-position | 1 | 1 | 7 |
| Absolute theta | 1 | 1 | 8 |
| Roll | 1 | 1 | 9 |
| Pitch | 1 | 1 | 10 |
| Yaw | 1 | 1 | 11 |
| X-Displacement | 1 | 2 | 1 |
| Y-Displacement | 1 | 2 | 2 |
| Z-Displacement | 1 | 2 | 3 |
| Pseudo displacement around X | 1 | 2 | 4 |
| Pseudo displacement around Y | 1 | 2 | 5 |
| Pseudo displacement around Z | 1 | 2 | 6 |
| Absolute displacement | 1 | 2 | 7 |
| Absolute rotation motion | 1 | 2 | 8 |
| Surge | 1 | 2 | 9 |
| Sway | 1 | 2 | 10 |
| Heave | 1 | 2 | 11 |
| X-Velocity | 1 | 3 | 1 |
| Y-Velocity | 1 | 3 | 2 |
| Z-Velocity | 1 | 3 | 3 |
| Velocity around X | 1 | 3 | 4 |
| Velocity around Y | 1 | 3 | 5 |
| Velocity around Z | 1 | 3 | 6 |
| Absolute Velocity | 1 | 3 | 7 |
| Amplitude rotation velocity | 1 | 3 | 8 |
| X-Acceleration | 1 | 4 | 1 |
| Y-Acceleration | 1 | 4 | 2 |
| Z-Acceleration | 1 | 4 | 3 |
| Acceleration around X | 1 | 4 | 4 |
| Acceleration around Y | 1 | 4 | 5 |
| Acceleration around Z | 1 | 4 | 6 |
| Absolute Acceleration | 1 | 4 | 7 |
| Amplitude rotation Acceleration | 1 | 4 | 8 |
| Selected Output | ICURV | ICH1 | ICH2 |
|---|---|---|---|
| Effective tension | 2 | 1 | 1 |
| Absolute bending moment | 2 | 2 | 1 |
| Torsion moment | 2 | 3 | 1 |
| Absolute Shear force | 2 | 4 | 1 |
| Global force on X | 2 | 5 | 1 |
| Global force on Y | 2 | 5 | 2 |
| Global force on Z | 2 | 5 | 3 |
| Shear force on local axis x | 2 | 6 | 1 |
| Shear force on local axis y | 2 | 6 | 2 |
| True tension on local axis z | 2 | 6 | 3 |
| Global moment on X | 2 | 7 | 1 |
| Global moment on Y | 2 | 7 | 2 |
| Global moment on Z | 2 | 7 | 3 |
| Bending moment on local axis x | 2 | 8 | 1 |
| Bending moment on local axis y | 2 | 8 | 2 |
| Torsion moment on local axis z | 2 | 8 | 3 |
| Internal pressure | 2 | 9 | 1 |
| External Pressure | 2 | 9 | 2 |
| Selected Output | ICURV | ICH1 | ICH2 |
|---|---|---|---|
| Axial strain | 3 | 1 | 1 |
| Absolute curvature | 3 | 2 | 1 |
| Torsion | 3 | 3 | 1 |
| Absolute Shear strain | 3 | 4 | 1 |
| Global strain on X | 3 | 5 | 1 |
| Global strain on Y | 3 | 5 | 2 |
| Global strain on Z | 3 | 5 | 3 |
| Shear strain on local axis x | 3 | 6 | 1 |
| Shear strain on local axis y | 3 | 6 | 2 |
| Strain on local axis z | 3 | 6 | 3 |
| Global curvature on X | 3 | 7 | 1 |
| Global curvature on Y | 3 | 7 | 2 |
| Global curvature on Z | 3 | 7 | 3 |
| Bending curvature on local axis x | 3 | 8 | 1 |
| Bending curvature on local axis y | 3 | 8 | 2 |
| Bending curvature on local axis Z | 3 | 8 | 3 |
| Selected Output | ICURV | ICH1 | ICH2 |
|---|---|---|---|
| Absolute built-in angle | 5 | 1 | 1 |
| Built-in angle around X (Global frame) | 5 | 1 | 2 |
| Built-in angle around Y (Global frame) | 5 | 1 | 3 |
| Z-proj built-in angle (Global frame) | 5 | 1 | 4 |
| Selected Output | ICURV | ICH1 | ICH2 |
|---|---|---|---|
| Relative position wrt. Wave elevation | 6 | 0 | - |
| 3 Positions + 3 Pseudo Rotations | 6 | 1 | 0 |
| X-Position | 6 | 1 | 1 |
| Y-Position | 6 | 1 | 2 |
| Z-Position | 6 | 1 | 3 |
| Pseudo rotation around X | 6 | 1 | 4 |
| Pseudo rotation around Y | 6 | 1 | 5 |
| Pseudo rotation around Z | 6 | 1 | 6 |
| Absolute Position | 6 | 1 | 7 |
| Absolute Rotation | 6 | 1 | 8 |
| 3 Disp + 3 Pseudo Disp. | 6 | 2 | 0 |
| X-Displacement | 6 | 2 | 1 |
| Y-Displacement | 6 | 2 | 2 |
| Z-Displacement | 6 | 2 | 3 |
| Pseudo Disp. around X | 6 | 2 | 4 |
| Pseudo Disp. around Y | 6 | 2 | 5 |
| Pseudo Disp. around Z | 6 | 2 | 6 |
| Absolute Disp | 6 | 2 | 7 |
| Absolute Pseudo disp | 6 | 2 | 8 |
| 3 Velocities + 3 Rotation Velocities | 6 | 3 | 0 |
| X-Velocity | 6 | 3 | 1 |
| Y-Velocity | 6 | 3 | 2 |
| Z-Velocity | 6 | 3 | 3 |
| Rotation Velocity around X | 6 | 3 | 4 |
| Rotation Velocity around Y | 6 | 3 | 5 |
| Rotation Velocity around Z | 6 | 3 | 6 |
| Amplitude velocity | 6 | 3 | 7 |
| Amplitude rotation velocity | 6 | 3 | 8 |
| 3 Acc. + 3 Rotation Acc. | 6 | 4 | 0 |
| X-Acceleration | 6 | 4 | 1 |
| Y-Acceleration | 6 | 4 | 2 |
| Z-Acceleration | 6 | 4 | 3 |
| Rotation Acceleration around X | 6 | 4 | 4 |
| Rotation Acceleration around Y | 6 | 4 | 5 |
| Rotation Acceleration around Z | 6 | 4 | 6 |
| Amplitude Acceleration | 6 | 4 | 7 |
| Amplitude rotation Acceleration | 6 | 4 | 8 |
Restrictions :
The selected groups of elements must be previously defined.
Note
The results about the required groups are stored in the file:
Analysis_Name_TYP_ICH1_ICH2_SNAP_TIME_ISTEPs_Group_Name.txt if ISTDYN = 1 Analysis_Name_TYP_ICH1_ICH2_SNAP_STEP_ISTEP_Group_Name.txt if ISTDYN = 0
TYP may be TEFF, DISP, CURV, ANG or BANG
Snapshot outputs are not available for TYP = SWELL (ICURVTOT = 6)
Example :
*POSTSNAP
1 2 1 1 0
500 1 0
1
The resulting file is a csv format file named: Analysis_Name _TEFF_1_1_SNAP_TIME_500s_Group_Name.txt It contains the snapshot of effective tension along the selected group at t=500s.
*POSTSNAP
0 2 1 1 0
15 1 0
1
The resulting file is a csv format file named: Analysis_Name _TEFF_1_1_SNAP_STEP_15_Group_Name.txt It contains the snapshot of effective tension along the selected group at step 15.
