The _s#_a.frf file is an OptiStruct ASCII format results file.
This file is only created for frequency response subcases. Creation of this file is controlled by the I/O option OUTPUT.
Result |
Description |
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Acceleration |
Acceleration results from frequency response analyses. Output is controlled by the I/O option ACCELERATION. |
If the real and imaginary format was selected on the ACCELERATION card, the file starts with the following header:
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Frequency"REA | X Trans"IMA | X Trans"REA | Y Trans"IMA | Y Trans"REA | Z Trans"IMA | Z Trans |
If the phase and magnitude format was selected on the ACCELERATION card, the file starts with the following header:
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Frequency"PHA | X Trans"MAG | X Trans"PHA | Y Trans"MAG | Y Trans"PHA | Z Trans"MAG | Z Trans |
In either case the results are grouped by node with results for different nodes separated by a blank line. The format of each line after the header is as follows:
|
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Frequency |
X-rl/ph |
X-im/mag |
Y-rl/ph |
Y-im/mag |
Z-rl/ph |
Z-im/mag |
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where: |
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Frequency |
is the frequency at which results are calculated. |
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X-rl/ph |
is either the real component in the x-direction or the phase angle in the x-direction component. |
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X-im/mag |
is either the imaginary component in the x-direction or the magnitude in the x-direction component. |
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Y-rl/ph |
is either the real component in the y-direction or the phase angle in the y-direction component. |
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Y-im/mag |
is either the imaginary component in the y-direction or the magnitude in the y-direction component. |
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Z-rl/ph |
is either the real component in the z-direction or the phase angle in the z-direction component. |
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Z-im/mag |
is either the imaginary component in the z-direction or the magnitude in the z-direction component. |
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The # in the file name is the user-defined subcase ID from which these results are obtained.
The _freq.mvw HyperView script file automatically creates plots for the results contained in this file.