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Stress analysis of moving assembly

12 REPLIES 12
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Message 1 of 13
Anonymous
1053 Views, 12 Replies

Stress analysis of moving assembly

Anonymous
Not applicable

Just a simple question on the workings of IV. If i put a motion constraint, say a pipe tangential to the inside of a larger one, and make that an assembly, then create a new assembly of a bracket that the larger pipe welds to, will the inner pipes movelment still be available for stress? I know that when you bring an assembly into another one it becomes a rigid single object, but is it the same as far as stress goes or does the alalysis run deep into the sub assemblies and acquire their constraints?

 

Thanks in advance

0 Likes

Stress analysis of moving assembly

Just a simple question on the workings of IV. If i put a motion constraint, say a pipe tangential to the inside of a larger one, and make that an assembly, then create a new assembly of a bracket that the larger pipe welds to, will the inner pipes movelment still be available for stress? I know that when you bring an assembly into another one it becomes a rigid single object, but is it the same as far as stress goes or does the alalysis run deep into the sub assemblies and acquire their constraints?

 

Thanks in advance

12 REPLIES 12
Message 2 of 13
JDMather
in reply to: Anonymous

JDMather
Consultant
Consultant

If I follow your problem description for Motion Loads you need Environments>Dynamic Simulation - from this export the Motion Load to FEA for the part of interest.


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Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


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If I follow your problem description for Motion Loads you need Environments>Dynamic Simulation - from this export the Motion Load to FEA for the part of interest.


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


Message 3 of 13
Iman.Emam
in reply to: JDMather

Iman.Emam
Explorer
Explorer

Is it possible to select a welded assembly instead of a part when we want to transfer dynamic solution to FEA?

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Is it possible to select a welded assembly instead of a part when we want to transfer dynamic solution to FEA?

Message 4 of 13
JDMather
in reply to: Iman.Emam

JDMather
Consultant
Consultant

Derive the Welded Assembly into a single part.


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


Derive the Welded Assembly into a single part.


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


Message 5 of 13
Iman.Emam
in reply to: JDMather

Iman.Emam
Explorer
Explorer

Now it is a welded assembly. How could I derive it to a single part?

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Now it is a welded assembly. How could I derive it to a single part?

Message 6 of 13
Iman.Emam
in reply to: JDMather

Iman.Emam
Explorer
Explorer

I found it, thank you.

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I found it, thank you.

Message 7 of 13
Iman.Emam
in reply to: JDMather

Iman.Emam
Explorer
Explorer

New problem

 

I derived it to a single part and made dynamic simulation. Then exported to FEA, but in FEA it couldn't make the mesh. I think the problem is with the weldments in the part. How could I solve this?

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New problem

 

I derived it to a single part and made dynamic simulation. Then exported to FEA, but in FEA it couldn't make the mesh. I think the problem is with the weldments in the part. How could I solve this?

Message 8 of 13
TheCADWhisperer
in reply to: Iman.Emam

TheCADWhisperer
Consultant
Consultant

Attach file here. 

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Attach file here. 

Message 9 of 13
Iman.Emam
in reply to: TheCADWhisperer

Iman.Emam
Explorer
Explorer

I have attached the part and a zip file which is made by pack & go.

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I have attached the part and a zip file which is made by pack & go.

Message 10 of 13
Iman.Emam
in reply to: Iman.Emam

Iman.Emam
Explorer
Explorer

files

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files

Message 11 of 13
JDMather
in reply to: Iman.Emam

JDMather
Consultant
Consultant

Which assembly in your zip folder is the top level assembly file?


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Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


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Which assembly in your zip folder is the top level assembly file?


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


Message 12 of 13
Iman.Emam
in reply to: JDMather

Iman.Emam
Explorer
Explorer

Sorry,

 

I should mention it.

 

Test\Workspaces\Workspace\_S-Ritningar\S40-Stand accessories\S401

 

The file name is S40118-02A - test2

 

Thanks

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Sorry,

 

I should mention it.

 

Test\Workspaces\Workspace\_S-Ritningar\S40-Stand accessories\S401

 

The file name is S40118-02A - test2

 

Thanks

Message 13 of 13
JDMather
in reply to: Iman.Emam

JDMather
Consultant
Consultant

To aid in meshing - the first thing I would do is Edit the derived Component and remove boundaries (seams).

JDMather_0-1605109113710.png

 

If I do a Section view through the pins - I see that there are gaps.

(This might be realistic, but might also cause issues in creating the mesh.)

I would go back and edit the part files to remove the gaps. (Be sure to work on a back-up set of files, not the originals.)  (These gaps could also be removed only in the Derived Component with Delete Face - Void option, but this starts to get into expert level experience.  (But this is probably how I would remove the gaps.))

JDMather_0-1605109606504.png

 

 

 


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


0 Likes

To aid in meshing - the first thing I would do is Edit the derived Component and remove boundaries (seams).

JDMather_0-1605109113710.png

 

If I do a Section view through the pins - I see that there are gaps.

(This might be realistic, but might also cause issues in creating the mesh.)

I would go back and edit the part files to remove the gaps. (Be sure to work on a back-up set of files, not the originals.)  (These gaps could also be removed only in the Derived Component with Delete Face - Void option, but this starts to get into expert level experience.  (But this is probably how I would remove the gaps.))

JDMather_0-1605109606504.png

 

 

 


-----------------------------------------------------------------------------------------
Autodesk Inventor 2019 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional


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