Perform Meshing Of Washer with Meshing Guidelines

Aim : To Perform Meshing Of Washer

Objective : To Perform Meshing of Washer applying zone cut and using meshing guidelines using dia = 1.5 to 2 for 1st case and dia = 1.75 to 2 for 2nd case

Geometry Preparation

• Import our Cad Geometry

After importing the raw geometry, the first thing we should check are the units.

We can perform this step under Tools -> Settings -> Resolution/Tolerance/Units

Then we should check for resolution (perimeter). If the raw geometry has distortion, it can be fixed by changing its perimeter.

We can perform this operation under Mesh -> Length -> Perimeter ->Select the whole geometry -> Length Parameters -> 1 mm

• Measure the Geometry Thickness

• Here the thickness is 8 mm which meant that we can go for 2d Meshing Operation
• For sheet metal operation the thickness is taken to be in between 3 mm to 8 mm

Mid Surface Extraction

Faces -> Mid Surface -> Skin -> Select the Geometry -> Thickness -> 10mm( > 8 mm) -> Confirm Selection.

Now we need to put the washer in the holes..for that we need to zone cut operations

Zone Cut

For for calculating the First Washer Diameter = [ (1.5 D) - D ]/2 = (24-16)/2 = 4 mm

Diameter of the hole is = 16 mm

For for calculating the Second Washer Diameter = [ (2 D) - D ]/2 = (32-16)/2 = 8 mm

Diameter of the hole is = 16 mm

Similarly for the Second Washer

We need to take 1.75D and 2D Zone cut width is 6 mm and 8 mm

Meshing of the Geometry

• Here, we will be using Batch Mesh Process for meshing
• We will be Quad Elements for the Meshing
• Target Length -> 3 mm
• Distortion Angle -> 20
• Distortion Distance -> 20

Final Output

Conclusion

• For sheetmetal components we should use element size between 3mm-8mm for relatively short parts.
• Distortion Angle and Distortion Distance of 20 helped us in removing the tria elements