Week- 5 - Solid meshing

Aim:

To solve the given Rear view mirror component, check for the geometrical errors and mesh the Surfaces with the given 2D element Quality criterias given below and good volume mesh.

Given data:

2D Quality criteria:

S.No	Quality Criteria	Value
1	Target/Average length	1
2	Minimum Length	0.5
3	Maximum Length	2

3D Quality criteria:

S.No	Quality Criteria	Value
1	Tet collapse	0.2

Given CAD:

Procedure:

¬ First import cad geometry file into ANSA.

¬ Give complete topology

¬ Then check the geometry error .

¬ There are some triple cons error, fix the all errors.

¬ This rearview mirror have four components

¬ Going to assign Quality criteria in mesh parameter.

Mesh parameter:

Quality criteria:

¬ Then going to perfomed mesh the 2d surface with elements type tria and ortho tria.

¬ orto tria used for curve and fillets .

¬ Tria uesd for flat surface.

2D meshing:

¬ First mesh on fillet and curve using the ortho tria option.

¬ Then mesh flat surface using the Tria option.

Full 2D mesh

¬ complete the 2D mesh with good quality.

3D volume meshing:

¬ This is 3D meshing, create volume of the components and mesh using Tetra rapid.

¬ Go to volume mesh- Define the components its to be closed volume .

Full volume mesh:

Quality check:

¬ check all quality criteria to clear all quality issues in TET collapse.

cross section view:

Result:

¬ Cleared all geometry clean up.

¬ Performed tetra meshing with passing all quality criteria.

Learning outcomes:

¬ Learned to mesh for solid coponents using tria and orto tria.

¬ learn to create volume mesh and applying the tetra mesh over the selected volume mesh.

Conclusion:

¬ There are given Rearview mirror model is checked geometry errors meshed with elements as tria and orto tria as per given quality criteria.

¬ After meshing defined volume meshed the volume by using an unstructured mesh with the type of tetra rapid.

¬ The off elements also eliminated quality criteria are cleared in this model.