Viewing Resulting Moment through "List resultant force" 2

[Svillefan08]

So here is a brief problem I am having that I hope someone can help me with.

For reasons that would be excessive to explain I want to be able to view the moment in on a face in a object I am designing in Solidworks. However, whenever I select the "List resultant force" option and use the "free body forces" option, the resultant moment in all direction is listed as zero.

I found this suspect so created a simple cantilever beam. This beam contain 2 blocks that are much longer than wide or thick. They are the exact same size and mated such that they appear as one beam. I did this so I would have a face in the middle of the beam to select.

Using a global contact of "bonded", and after fixing one end of the beam and applying force to the other end of the beam, I select the list resultant forces option, and select the face in the middle of the beam. However the resulting moment is listed at zero. This is despite the fact that I am confident that there should be a resulting moment in a cantilever beam. I even get no result on the fixed end. Anyone know why the resulting moment is being shown as 0?

Images of the set up are included

 

[kellnerp]

FEMAP and other higher end post processors will do this calculation. You can do it in Cosmo/M as well. There is no real API interface to Simulation to allow you do "roll your own" solution.

This is a perfectly reasonable thing to want to do.

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[Svillefan08]

Thanks, I had feared that was the case, and had started using Catia V5 as soon as I had posted that question as a back up.

This has lead to a new question:
I am trying to create a connection that is similiar to a "Pin" connection in Solidworks. IE a connection that allows an item with a hole to rotate freely about the hole of another item.

There is no preset option for this that i know of in Catia, and so I am using the "User defined distant connection" property. However, I do not understand the way the definition is set up. Could someone explain, or refer me to a document that does since I have been unable to find one, what "Start" "Middle" and "End" signifies, and what the difference in the options for these pull down menu's are. Particularly the difference between rigid and smooth.

Or if there is a preset for this type of connection, that would be very useful also.

Thanks

 

[Svillefan08]

Actually, since this is a Catia question, I will move it to a new thread under Catia.

Thanks!

 

[KevinDeSmet]

Don't be silly, SolidWorks does this but it's a bit of an elegant dance of the right selection to make it work. When I have a wee bit of time I'll see how it went and report back.

Certified SolidWorks Professional

 

[KevinDeSmet]

You need a point on the center of your face (Reference Geometry > Point > Center of Face) as well as a coordinate system aligned normal to your face (Reference Geometry > Coordinate System)

Then right-click on the results folder and List Result Force... select the Free Body Force option, select the point you made in the proper field and also your coordinate system and finally select your face in the big selection field. An elegant dance, but there you have it!

This won't work however for a mixed mesh study. The current workaround would be to temporarily exclude the mixed bodies from the analysis so your body of interest remains and then you have those options again for selecting a point, a cs and a face. From 2011 SP3 they changed this that it always works regardless of mixed mesh situations.

Got this from the SolidWorks World presentation from Julien Boissat (give credit where credit is due!)

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[Scheffers]

Works like a charm the way Kevin described! Thanks for sharing!