Stress due to Rotation

[kscott9709]

Pls can somebody advise if Fusion 360 Simulation has the ability to calculate the Hoop Stress in a circular body due Rotation about it's axis?  The screencast show my particular application, which I consider comes under the criteria of a Thin Shell. 

[kscott9709]

Struggling above to attach my screencast.  Here goes again:-  https://knowledge.autodesk.com/community/screencast/705c0ac1-c1a6-49ec-a944-8fec9fef9ca3

[tyler_henderson · Accepted solution]

Yes, you can do this with Fusion 360 Simulation.  Use the "Angular Global Load" and apply the rotation velocity and acceleration, if applicable, to the circular frame.  Use the "Axis" Direction Type and select the outer or inner circular face of the frame.  It would be best to exclude all other components from the simulation to simplify it.

It's also important to properly constrain the rotating component using a Pin constraint.  You likely want to constraint it axially and tangentially, but not radially.

You mentioned that the circular frame is a good candidate for thin shell elements, but Fusion Simulation doesn't have that capability yet.  It should still solve fine with Tet elements, just make sure the mesh is fine enough so that you have a minimum of 3 elements through the thickness of the geometry.

[kscott9709]

Many thanks Tyler for the comprehensive reply. I've not had a chance to
try it yet - but really good to know that now it's down to me.

[kscott9709]

Thanks Tyler - after some experimenting with the surface needed for the Pin constraints - pleased to report that I got the Rotational Analysis working on my hoop 😊 

However, removal of the stator part (using Simplify) has corrupted a previous simulation for the hoop Bending between roller contact points. 

It wasn't convincing me (so I was going to re-run anyway) - but can I set a model up so it's possible to run multiple simulations with alternative geometry?     I need to assess bending with stator pitch over a range of running angles, and to do parametric study of the effects on Bending, Rotation (& Vibration), with variations on my lightening holes (which are causing a higher stress concentration than I want to accept). 

[tyler_henderson]

Yes, you can absolutely do this.

When you go to "Simplify", on the "Create" panel, click "New Simulation Model".  A new Sim Model will appear in the browser and activated.  Then you can modify the geometry how you want and create new Studies on that Sim Model.

If you already have created Studies that you want to try on different geometry/simplifications, then while in "Simplify" you can right-click on a Simulation Model in the browser and choose "Clone Simulation Model".  This will give you the option of also cloning any Studies you already created for a Sim Model.  This is a nice way to run the same Studies on different geometry variations of the model or with different physical materials.

I hope this helps.