Project 1 - 2D meshing on the instrumental Panel

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	4
2	Minimum Length	2
3	Maximum Length	6
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:

We have the following part :

Now after using topo we get :

We will measure the thickness:

Now we will do geometry check :

After fixing it we get :

Now we will check the thickness :

Hence we will create the mid surface :

We have used offset command rather than skin offset and casting as it lead to better mid surface generation , using other methods would lead to a mid surface which would create a lot of bad surfaces , hence offset surface is the best method .

Now we will do defeaturing :

After using dach command we have defeatured all fillets as shown below :

Now we will set the element length as shown below :

Now we will set the element quality criteria :

We have put the quality criteria as shown :

Before we have to clean up few surfaces as shown :

As you can see the from the original component there is not gap in the surface but during the creation of mid surface :

If we look at the positive side of the middle surface we get the :

Now we have used middle surface and deleted the unwanted faces as shown below :

We will repeat the same for all the faces .

 After using middle surface command and filling the gaps by using the new face command we  get the following :

Now we will get the middle surface of the following :

 

Using middle surface command :

 

 

Now the middle circular section will cause bad mesh hence we will have to remove it :

The gaps will be filled using the new face command as shown below :

We have used curves and extend command as shown to create these kinds of ribs.

Now we will be heading for the meshing :

We will mesh all the surfaces in one go and later on clean the areas which are failing meshing quality:

After mesh clean up we get the following :

Conclusion :

Therefore we have meshed the given component and the mesh cleanup

 

Link for model :

https://drive.google.com/file/d/1DwCedFDx4qiOqZAt1p_ITJSMR2jS392J/view?usp=sharing