|
Vibration Volume functionality:
lets you calculate the dynamic envelope of a part or a group of parts
with respect to a positions file or from a existing fitting track .
- This dynamic envelope is in fact given by a set of positions in
Euler coordinates from an ASCII positions file (ADAMS format) or (VDA
format) or a track
- Vibration volume as most Optimizer commands is a multi-selection
command, which means the user can select as many input products he wants
and then launch the process to the select product or group of
products
- Once the computation is launched, a solid shape is generated: this
shape represents an envelope of the products (s) placed in every
position
- The result can be saved in CGR, VRML, V4 model or STL
|
|
This task will show you how to generate a vibration volume
from a track
|
|
Open the
Mobile_Phone.CATProduct document |
|
Use the Fit All In icon to
to position the model geometry on the screen |
|
Alternate Shape
-
Manage automatically your result as an alternate shape.
For this:
- Select Tools > Options from the menu bar.
The Options dialog box is displayed.
- Expand the Digital Mockup category from the left-hand tree.
- Select DMU Optimizer item to display the corresponding
tab. The Alternate Shapes Management is available
- Check Vibration Volume option: it is automatically activated as
an alternate shape. When activated the vibration volume
representation is the one visualized in session.
|
Note: If your are not working in alternate shape mode, it
is strongly recommended to use the Reference Product
option to avoid positioning problems when reinserting products. Read
About Reference
Product. |
-
Click the Vibration volume icon
from the DMU Optimizer toolbar.
The Vibration Volume dialog box is displayed:
-
Select the product or the group of products on which you
want to apply the vibration volume.
In our example, select Mobile Phone in the specification tree |
|
-
Select Track option button. Select Vibration
(Vibration) from the drop-down list
-
Set the vibration volume accuracy by entering a value. In
our example, keep the default value 1mm
Setting the vibration volume accuracy
The accuracy determines the precision of the vibration volume
representation. The accuracy parameter determines the size of the
triangles used to represent the vibration volume. A lower setting
results in slower computation time, but a more precise calculation of
the vibration volume.
For more detailed information, see More
about Vibration Volume |
-
Select the Apply Simplification option and set
the simplification accuracy as you wish (enter 0.5mm)
|
Note you can also apply the simplification afterwards or launch
again the operation with different accuracy values as many times as
needed |
|
-
Click Preview to launch the calculation and
obtain a preview. The progress bar is displayed letting you monitor and
interrupt if necessary (Cancel option) the calculation.
|
The Preview window lets you visualize the resulting
vibration volume. |
|
The number of triangles representing the simplified
vibration volume is displayed in the Number of triangles area, as
shown below: |
|
|
If you are not satisfied with the result, you can simplify your
vibration volume result again. For more detailed information, read
Using Simplification Command and
More about Simplification. |
-
Click Save. The Save As dialog box
is displayed.
- Set the Type to .cgr
- Identify the folder in which you want to save the file
- Enter a file name
|
|
you can also save your result as V4 model, .stl or .wrl
documents. Read About Saving Operations |
|
-
Click Save
-
Click Close
Your vibration volume is managed as an alternate shape,
therefore, it is automatically inserted into your product and
replaces the original component. |
|
|