The .gpf file is an OptiStruct
ASCII format results file.
File Creation
Creation of this file is controlled by the GPFORCE I/O
Option.
File Contents
Result |
Description |
Grid point force balance
table |
Grid point force balance
table for linear static analysis. |
File Format
The file is divided up by iteration. Output from each iteration starts with a line in
the following format:
|
ITERATION |
Iteration_number |
- Data
- Description
- ITERATION
- Keyword denoting the beginning of a new iteration.
- Iteration_number
- Iteration number.
Each iteration section contains a force balance table for each node, for which this
output format was selected, in each linear static subcase.
These tables are given the following header:
|
Grid point
forces for node |
Node_id |
Subcase
ID = |
Subcase_id |
- Data
- Description
- Node_id
- ID of the node to which the force balance table applies.
- Subcase_id
- User-defined subcase ID to which the force balance table applies.
The force information is provided, for each contributing element, constraint or load,
in the following format:
|
Force_type |
Element_id |
x-force |
y-force |
z-force |
x-moment |
y-moment |
z-moment |
- Data
- Description
- Force_type
- SPC - Force contribution of single-point
constraints.
- Appl. - Force contribution of Applied loads.
- F-MPC - Force contribution of rigid elements or
multi-point constraints.
- Elem - Force contribution of elastic elements.
- Total - The sum of all the force contributions.
- Element_id
- Only valid for force contributions from elastic elements. This is the
element's ID.
- x-force
- The x-translational component of the force.
- y-force
- The y-translational component of the force.
- z-force
- The z-translational component of the force.
- x-moment
- The x-rotational component of the force.
- y-moment
- The y-rotational component of the force.
- z-moment
- The z-rotational component of the force.
Comments
The I/O Option Previously Supported Results controls
the frequency of output for analytical results during an optimization.