.gpf file
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:
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ITERATION |
Iteration_number |
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where: |
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ITERATION |
is a keyword denoting the beginning of a new iteration. |
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Iteration_number |
is the Iteration number. |
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Each iteration section contains a force balance table for each node, for which this output format was selected, in each linear static subcase. |
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These tables are given the following header: |
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Grid point forces for node |
Node_id |
Subcase ID = |
Subcase_id |
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where: |
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Node_id |
is the ID of the node to which the force balance table applies. |
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Subcase_id |
is the user-defined subcase ID to which the force balance table applies. |
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And the force information is provided, for each contributing element, constraint or load, in the following format: |
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Force_type |
Element_id |
x-force |
y-force |
z-force |
x-moment |
y-moment |
z-moment |
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where: |
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Force_type |
is one of: |
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SPC |
Force contribution of single-point constraints. |
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Appl. |
Force contribution of Applied loads. |
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F-MPC |
Force contribution of rigid elements or multi-point constraints. |
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Elem |
Force contribution of elastic elements. |
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Total |
The sum of all the force contributions. |
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Element_id |
is only valid for force contributions from elastic elements. This is the element's ID. |
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x-force |
is the x-translational component of the force. |
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y-force |
is the y-translational component of the force. |
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z-force |
is the z-translational component of the force. |
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x-moment |
is the x-rotational component of the force. |
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y-moment |
is the y-rotational component of the force. |
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z-moment |
is the z-rotational component of the force. |
Comments
1. | The I/O Option RESULTS controls the frequency of output for analytical results during an optimization. |