Challenge

Week 2 Challenge : Surface meshing on a Pressure valve

Surface Meshing on a Pressure Valve

1. To check for the geometrical errors and perform Topology cleanup on the given model (Pressure Valve).

2. To set three different target lengths as three different cases and mesh the model.

Procedure:

Checks > Geometry

Note the highlighted errors (Specifically Single Cons) to excute the topological clearance and closing of the model before meshing.
Conversion of Single cons into Double cons and Triple Cons by creating faces using New option under Faces Section in three Surface Types ( Existing , Coons, Fitted)

Identify the insignificant faces and delete it .
Using Wireframe mode, verify the double cons and triple cons.
After the clearance is over, executing the Geometry Checks ( Note the errors other than triple cons as they are not errors truly)

Assign PIDs ( in PID MODE) using Properties > Right Click > New > PSHELL and customize

As the Topo operations are over, Next is the Mesh Operations using Mesh Deck
Select Mesh in the Mesh Deck to explore Meshing Options
Isolate the surafce using the boolean operations or Cross H mode and apply the target length using Length under Perimeters Section
Define the Mesh Parameters (target length and element type) and Quality Criteria ( min. length, max. lenth and target) for all PIDs
Apply mesh for all PIDs using show, hide and show only features

Result:

As per the Aim, on applying mesh target length 1mm,3 mm and 5mm it has been observed that

In 5mm case, the valve head curves surface and spring PID is meshed improperly as the target length is higher than those surafces (Spring dia : 3.3mm)

In 1mm & 3mm case, All the elements PIDs are meshed properly and has good results due to lesser target length compared to the element size parameters

Ship work like this
in your own course.