Week 4

Aim:

For the given component, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned.

Write a detailed report on your meshing process and also mention which method you used to extract the mid-surface along with the reason.

S.No	Quality Criteria	Value
1	Target/Average length	1
2	Minimum Length	0.5
3	Maximum Length	3
4	Aspect	3
5	Warpage	15
6	Skewness	45
7	Jacobian	0.7
8	Minimum Quad Angle	45
9	Maximum Quad Angle	135
10	Minimum Tria Angle	30
11	Maximum Tria Angle	120
10	Tria Percentage	15

Solution:

Geometry Check :

Using the fix command , these errors are removed

Manual Mid Surfacing :

We will be creating the mid surface of the ribs as shown below :

The mid surface of upper part :

Using command such as offset , cons middle this middle surface on the outer side , for the inner side for ribs we have created curves as shown below :

We will use new cons command to create the mid surface of the rib as shown below :

Now these inner ribs are extended as shown below :

Outer Ribs:

As you can see the outer ribs need to stitched and extended as shown below :

The inner surfaces are created as shown below :

Using the rotate command we get all the inner parts as shown below :

The whole mid surface of the part is :

Meshing :

Setting the meshing criteria we get :

As you can see half mesh has been done which will be reflected on the other side

After reflecting we get :

Since there are few elements which do not satisfy the quality criteria we need to do element clean up as shown below :

Conclusion:

Hence the given component has been mid surfaced manually and meshed with the maximum element cleanup possible.