Learning Forum

[Uniform]

I am a university student in my second year and am running a static structural analysis on a brake rotor. Im wondering how I can improve the my quality of my mesh. It seems like I can only improve the quality through decreasing element size. Currently I am about .85 in quality at a .01 inch element size. What is a more efficient meshing technique to get the same or better quality mesh? In the uploaded file I have deleted to mesh as the archived file was too large to upload.

[peteroznewman]

Go back to CAD and simplify the geometry some more. Also, when you create an archive, check the box to include External Geometry files so it includes the Parasolid file.

The goal is to have sweepable bodies.

On the buttons, remove the lips so they are just cylinders.

On the Carrier Mockup, remove the chamfer edge on the ID. Merge the faces on the two sides so the body is sweepable.

The Rotor is not sweepable, but Multizone mesh method works on it, which is good enough.

At a 1 mm element size, the Rotor alone has a minimum Element Quality of 0.258, and an average quality of 0.65, which is sufficient. Start out with a relatively coarse mesh until you see the contact solving.

[Uniform]

When using multizone mesh, how would I be able to check the convergence of my results to show that the value's im getting are correct?

[peteroznewman]

Put a Coordinate System near the area of highest stress then use a Sizing Constraint on the body, Type = Sphere of Influence, then you can set the element size over a radius that is large enough to cover the high stress gradients.