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This task will show you how to define the load excitation
set in a:
Defining a load excitation set allows you to define the
force type load you will apply. |
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Only available with the Generative Dynamic
Response Analysis (GDY) product. |
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Harmonic Dynamic Response Case
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Open the
sample57.CATAnalysis document from the samples directory.
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Double-click the load excitation set from the
specification tree.
In this particular case, double-click Load
Excitation.1 under the Harmonic Dynamic Response Case
set.
The Load Excitation Set dialog box appears.
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- Name: gives the name of the excitation set. You can
modify it.
- Selection:
- Selected load: lets you select the load you want
to excite.
- Selected modulation: lets you select a white noise
modulation or a frequency modulation.
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You cannot select a time modulation. |
- Selected factor: lets you select the factor that
will multiply the modulation.
- Selected phase: lets you associate a phase
component of a dynamic load excitation (load, modulation and
factor).
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Set the desired parameters in the Load Excitation Set
dialog box.
In this particular example:
- Select Pressure.1 as Selected load.
- Select Frequency Modulation.1 as Selected
modulation.
- Enter 1 as Selected factor value.
- Enter 2deg as Selected phase value.
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Press Enter to update the Load Excitation Set
dialog box.
The Load Excitation Set dialog box appears as shown
below:
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You can add or delete load
excitation parameters using contextual menus in the Load Excitation
Set dialog box.
The available contextual menus are:
- Add: lets you add a load excitation.
- Delete: lets you delete a load excitation.
- Delete All: lets you delete all the load excitations
you have previously defined.
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Right-click in the frame and select the Add
contextual menu.
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Select the desired load, modulation, factor and phase.
In this particular example:
- Select the Loads.1 set as Selected load.
- Select the White noise.1 as Selected modulation.
- Enter 2 as Selected factor value.
- Enter 1 as Selected phase value.
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Right-click the second line and select the Delete
contextual menu.
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Click OK.
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Transient Dynamic Response Case
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Open the
sample57.CATAnalysis document from the samples directory.
In this particular example, a transient dynamic response
case and a modulation set have been already inserted.
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Double-click the load excitation set from the
specification tree.
In this particular case, double-click Load
Excitation.1.
The Load Excitation Set dialog box appears.
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- Name: gives the name of the excitation set. You can
modify it.
- Selection:
- Selected load: lets you select the load you want
to excite.
- Selected modulation: lets you select a time
modulation.
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You cannot select a frequency modulation. |
- Selected factor: lets you select the factor that
will multiply the modulation.
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Select the load you want to excite in the specification
tree.
In this particular example:
- Select Pressure.1 as Selected load.
- Select Time Modulation.1 as Selected modulation.
- Enter 1 as Selected factor value.
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Press Enter to update the Load Excitation Set
dialog box.
The Load Excitation Set dialog box appears as shown
below:
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You can add or delete load excitation parameters
using contextual menus in the Load Excitation
Set dialog box. |
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Click OK.
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