Week 12:Project-1-Meshing of Door Inner Panel Challenge

AIM :

To extract mid-surface, geometry clean up and create the shell (two-dimensional) mesh for the given side door inner panel according to the given quality criteria by using HYPERMESH.

S.N	Quality Criteria	Value
1	Aspect Ratio	5
2	Skewness	45
3	Warping	15
4	Taper	0.5
5	Min. Length	2 Units
6	Max. Length	6 Units
7	Min angle Quad	45
8	Max angle Quad	135
9	Min angle Tria	20
10	Max angle Tria	120
10	Tria %	10

PROCEDURE:

* Extract the side door panel model into Hyperworks

* Do the geometry cleanup and remove all the filets and clean the surface before extracting the mid-surface Geometry > defeature >surf fillets

* Check the thickness of the various surfaces of the component Geometry > distance > two points

* Extract the mid-surface manually due to the variable thickness of the component Geometry > surface edit > offset

* Capture the ribs and dog houses from the model in 2D form.

* Extend the surfaces by using the extend tool Geometry> surface edit > extend

* Make a washer split around the holes where ever it is needed

* After extracting the mid-surfaces, mesh the surface 2D > automesh > size

* Apply the given Quality Criteria values and save it for later as well.

* Use clean up tools 2D > qualityindex > clean up tools

* Use rebuild mesh to improve the quality of mesh

* At the end check for connectivity by Tool > edges, select the elements, and click preview equivalence.

BEFORE AFTER

Assigning Thickness:

* Sice different surfaces have a different values of thickness, assign the thickness property of each component

* Then create property cards for all the thicknesses and assign it to the respective components

* Assign thickness automatically by going to Mesh > Assign > Midmeshh Thickness

* Assign the parent geometry in surfaces and mid mesh in elements and hit calculate thickness

RESULT:

* The given is a meshed property with the given quality criteria requirements and the correct thickness is assigned to the respective elements.