The .pch file is a Nastran punch format results file.
This file is created when the NASTRAN or PUNCH formats are chosen. (See documentation for the I/O options FORMAT and OUTPUT.
Result |
Description |
|
Density |
Density results from topology optimizations. Output is controlled by the I/O option DENSRES. Note: Density results are reported as von Mises Strains. |
|
Displacement |
Displacement results from linear static and inertia relief analyses. Output is controlled by the I/O option DISPLACEMENT. |
|
Eigenvector |
Eigenvector results from normal modes analyses. Output is controlled by the I/O option DISPLACEMENT. |
|
Single-point force of constraint |
Single-point force of constraint results from linear static and inertia relief analyses. Output is controlled by the I/O option SPCFORCE. |
|
Stress |
Stress results from linear static and inertia relief analyses. Output is controlled by the I/O option STRESS (or ELSTRESS). |
The I/O option RESULTS controls the frequency of output for analytical results during an optimization.