Project - 2 - Meshing on the suspension Assembly

Report project 2 Meshing on the suspension Assembly

Provide Aim: create 3d mesh on suspension assembly, create appropriate connections

Procedure:

1.clean up geometry, devide parts into different properties

2.create 2d mesh in each properties based on quality standard

Rim&Tire:

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

Other parts:

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

There are parts thickness is less than 5mm, so they need to create middle surface for 2d mesh:

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

For spring, use CBAR element

3.Then create 3d mesh:

create volume list for each properties, use tetra rapid method to create 3d mesh.

Rim&Tire:

Whole parts:

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

4. create connection

RBE2 connections:

spotweld:

6. use symmetry to copy the other side of the suspesion:

Learning Outcomes: There are some new points in this project. I learned how to dicide and combine shell element and tetra elements together. I learned how to use CBAR element.

Conclusion: This is a good projects. It combines 2d mesh and 3d mesh. It also combine different connections: reb2 and spotweld connections. Finally use symmetry to display the whole parts.