Week 3 - 2D meshing for sheet metal

• AIM:

The main aim of the challenge is to mesh the extracted mid surface of the given Hood model within a given quality criteria.

S.No	Quality Criteria	Value
1.	Target/Average Length	5
2.	Minimum Length	2
3.	Maximum Length	7
4.	Aspect	3
5.	Warpage	15
6.	Skewness	45
7.	Jocobian	0.7
8.	Minimum Quad Angle	45
9.	Maximum Quad Angle	135
10.	Minimum Tria Angle	30
11.	Maximum Tria Angle	120
12.	Tria percentage	15

• PROCEDURE:

1.Import the given Hood model and perform the topo clean-up (menu bar >> tools >> checks >> geometry)

This type of errors can be auto fixed or can be manually eliminated

2. Seperate the given hood model using not operator and store the corresponding model as

INNER EXTRACT:

OUTER EXTRACT:

LATCH EXTRACT:

HINGE EXTRACT:

3. MID SURFACE EXTRACTION

Initially measure the thickness of the each extraction and using (Faces>> offset) extract the mid surface of each extract.The purpose of the middle surface is to reduce the expenses of analysing the whole solid part and also it is easy for the meshing.

INNER MID SURFACE:

Since the obtained middle surface is symmetric in shape ,we have to delete the one half of the model using delete option

OUTER MID SURFACE:

LATCH MID SURFACE:

HINGE MID SURFACE:

4. Meshing

MESH PARAMETERS:

QUALITY PARAMETERS:

INNER MID SURFACE MESHING:

OUTER MID SURFACE MESHING:

LATCH MESHING:

HINGE MESHING:

When we combine all the meshed mid surface