Challenge

Project - 2 - Meshing on the suspension Assembly

LLogeaswaran M24 Jun 2022

AIM:

The aim is to do the pre-processing on a given Suspension assembly model using ANSA.

Quality Criteria for Surface Meshing of Tyre and Rim (Element type: Tria) :

S.No	Quality Criteria	Value
1	Target/Average length	6.5
2	Minimum Length	5
3	Maximum Length	10
4	Skewness	45

Quality criteria for Surface Meshing of Non Uniform thickness components other than Tyre and Rim (Element type: Tria) :

S.No	Quality Criteria	Value
1	Target/Average length	4
2	Minimum Length	2
3	Maximum Length	6
4	Skewness	45

Quality Criteria for Volume meshing of all Non Uniform thickness components (Element type: Tetra Elements):

S.No	Quality Criteria	Value
1	Tet-collapse	0.2

Quality criteria for Mid surfacing of Uniform thickness part which has thickness less than 5 mm (Element type: Mixed elements) :

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

PROCEDURE:

The cad model is imported into the workspace by using file > open and select the CAD model.

The model will be imported into the workspace.

Initially the geometry cleanup has to be done, To check the geometrical errors go to check manager that is available at the tool bar, In the check manager select geometry and click execute.

If any error shown fix it and continue,

Then PID has to be created,

Now for extracting Mid surface various tools like Faces> offset, Faces > middle, Faces > mid surface > casting areused to create mid surface automatically and manually. The automatic mid surface extraction is not working in this case due to complex features present in the model. So in this case manual mid surface extracting tools like offset and middle is used.

To extract mid manually go to faces > offset, then select the cmponent and extract it.

Now 2D meshing has to be done,