Week 6-Meshing of Hood Challenge

AIM: To create a meshing of hood check for the geometrical errors and mesh with the given element quality criteria. After meshing the component thickness has to be assigned.

OBJECTIVE: Follow the below mentioned quality criteria, mesh the component given below and assigned thickness.

Target Element Length = 5 Units

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	8 Units
7	Min angle Quad	45
8	Max angle Quad	135
9	Min angle Tria	20
10	Max angle Tria	120
10	Tria %	10

INTRODUCTION:

There are a few ways to handle the mesh flow.

The tria elements should never be opposite each other.

No tria elements should be connected back to back.

No tria elements should be on the edge of the geometry.

No tria elements should be near the holes.

No tria elements should be on the feature and the fillets.

Thereshould be less tria concentration, i.e., there should be a considerable distance between tria element.

PROCEDURE:

1. Open the model in hyprmesh before assigning the quality criteri, check for geometry issues and fix them. The above image shows green lines when I keep in topo mode is because I have deleted the solid from the given model. Now the geometry errors can be fixed by keeping it in wirefrae mode.
2. After geometry check extract mid surface for each part in the hood in the current model we have five parts latch, sheetmetal hood, hood frame, LHS Hinge, and RHS hinge.
3. Here I hsve used auto mid surface.
4. Now assign the quality criteria and in quality check and keep the model view in element quality so that the elements which are failing while meshing will be visible instantly. The above image is where the mesh flow and quality analysis is done in element quality view.
5. Aftermeshing the model check for fre edges ad try to make it equal to the mesh with automatic or try to fix it manually by place node option.

RESULT:

Few images below show th completed mesh model of hood parts as er the quality criteria.