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Any referenced datasets can be downloaded from "Module downloads" in the module overview.
Transcript
00:00
In this video, you’ll: identify model features that need to be suppressed, unsuppressed, or modified for analysis based on results,
00:14
and select appropriate workflows for modifications.
00:19
After completing a simulation and interpreting the results, you may wish to make changes to the design geometry,
00:27
depending on those results.
00:30
First, open the file Modifying Geometry.f3d.
00:36
In the Simulation workspace, solve the study.
00:40
From the Browser, right-click Results and click View Results.
00:46
In the Results Details dialog, from the legend, expand the display drop-down and select Stress.
00:54
Then, ensure Von Mises is selected.
00:58
You can see from both the tag and the legend that the maximum stress experienced by this design is 134.5 MPa,
01:08
which is high for the designed load.
01:12
You can reduce the stress by modifying the geometry of the model.
01:17
In addition to the high amount of stress, the simulation results also show that the fillets and chamfers at the base of the model
01:27
do not contribute to its strength.
01:30
Therefore, these can be removed.
01:33
Click Finish Results.
01:37
On the Toolbar, click Simplify.
01:40
Now, it is time to remove the chamfers and fillets of the model.
01:45
Removing excessive features also speeds up the calculation time.
01:50
Clone the simulation model.
01:53
From the Browser, right-click Simulation Model 1, and, from the shortcut menu, select Clone Simulation Model.
02:03
This opens the Clone Simulation dialog.
02:06
From the list of studies, ensure Study 1 – Static Stress is selected and then click OK.
02:14
The Browser updates with a duplicated simulation model.
02:19
With the model active, expand the Modify drop-down and select Remove Features.
02:26
In the canvas, select the model.
02:29
Back in the dialog, under Features, ensure Select All is checked.
02:35
Then, click Delete.
02:38
All unwanted fillets are removed.
02:41
Now, add a fillet to the elbow of the model.
02:45
Expand the Modify drop-down and select Fillet.
02:49
The Fillet dialog displays.
02:52
In the canvas, select the edge of the inside corner of the elbow.
02:58
In the Specify radius values input field, enter . 5.
03:04
Back in the Fillets dialog, click OK.
03:07
Finally, shorten the length of the top arm.
03:12
Expand the Modify drop-down and select Press Pull.
03:17
The Press Pull dialog displays.
03:20
Select the face at the end of the arm to be shortened.
03:24
In the values input field, enter -1.0.
03:29
Back in the dialog, click OK.
03:33
Once the model has been simplified, from the Toolbar, select Finish Simplify.
03:38
Now you can solve the study again.
03:42
From the Toolbar, Solve panel, click Solve.
03:46
The Solve dialog displays.
03:48
Click Solve to confirm.
03:51
Solving a study updates the mesh as well as the results.
03:56
In the canvas, the new results display.
04:00
In the Results Details dialog, from the legend, expand the display drop-down and select Stress.
04:07
Then, ensure Von Mises is selected.
04:11
You can see that the area of high stress has been reduced.
04:15
From the toolbar, select Finish Results and ensure the file is saved.
Video transcript
00:00
In this video, you’ll: identify model features that need to be suppressed, unsuppressed, or modified for analysis based on results,
00:14
and select appropriate workflows for modifications.
00:19
After completing a simulation and interpreting the results, you may wish to make changes to the design geometry,
00:27
depending on those results.
00:30
First, open the file Modifying Geometry.f3d.
00:36
In the Simulation workspace, solve the study.
00:40
From the Browser, right-click Results and click View Results.
00:46
In the Results Details dialog, from the legend, expand the display drop-down and select Stress.
00:54
Then, ensure Von Mises is selected.
00:58
You can see from both the tag and the legend that the maximum stress experienced by this design is 134.5 MPa,
01:08
which is high for the designed load.
01:12
You can reduce the stress by modifying the geometry of the model.
01:17
In addition to the high amount of stress, the simulation results also show that the fillets and chamfers at the base of the model
01:27
do not contribute to its strength.
01:30
Therefore, these can be removed.
01:33
Click Finish Results.
01:37
On the Toolbar, click Simplify.
01:40
Now, it is time to remove the chamfers and fillets of the model.
01:45
Removing excessive features also speeds up the calculation time.
01:50
Clone the simulation model.
01:53
From the Browser, right-click Simulation Model 1, and, from the shortcut menu, select Clone Simulation Model.
02:03
This opens the Clone Simulation dialog.
02:06
From the list of studies, ensure Study 1 – Static Stress is selected and then click OK.
02:14
The Browser updates with a duplicated simulation model.
02:19
With the model active, expand the Modify drop-down and select Remove Features.
02:26
In the canvas, select the model.
02:29
Back in the dialog, under Features, ensure Select All is checked.
02:35
Then, click Delete.
02:38
All unwanted fillets are removed.
02:41
Now, add a fillet to the elbow of the model.
02:45
Expand the Modify drop-down and select Fillet.
02:49
The Fillet dialog displays.
02:52
In the canvas, select the edge of the inside corner of the elbow.
02:58
In the Specify radius values input field, enter . 5.
03:04
Back in the Fillets dialog, click OK.
03:07
Finally, shorten the length of the top arm.
03:12
Expand the Modify drop-down and select Press Pull.
03:17
The Press Pull dialog displays.
03:20
Select the face at the end of the arm to be shortened.
03:24
In the values input field, enter -1.0.
03:29
Back in the dialog, click OK.
03:33
Once the model has been simplified, from the Toolbar, select Finish Simplify.
03:38
Now you can solve the study again.
03:42
From the Toolbar, Solve panel, click Solve.
03:46
The Solve dialog displays.
03:48
Click Solve to confirm.
03:51
Solving a study updates the mesh as well as the results.
03:56
In the canvas, the new results display.
04:00
In the Results Details dialog, from the legend, expand the display drop-down and select Stress.
04:07
Then, ensure Von Mises is selected.
04:11
You can see that the area of high stress has been reduced.
04:15
From the toolbar, select Finish Results and ensure the file is saved.
Step-by-step guide
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