Week- 5 - Solid meshing

REAR VIEW MIRROR

AIM:

For the given Rear view mirror component, check for the geometrical errors and mesh the Surfaces with the given 2D element Quality criterias and to Use tetra elements to mesh the Volumes defined in the model and check for the quality after Volume meshing.\

GIVEN:

CAD MODEL

2D QUALITY PARAMETERS:

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

SOLID QUALITY PARAMETERS:

S.No	Quality Criteria	Value
1	Tet collapse	0.2

METHODOLOGY:

• Model has to be clear Topology errors.
• Generating ORTHO TRIA OR TRIA mesh with the given element length and to pass the given 2D quality criteria.
• Convert 2d tria element into solid tetra mesh and to pass the given tet collapse.

PROCEDURE:

IMPORTING FILE:

• Import the give model Files ->open->Bottle Cap.Ansa

CHECK GEOMETRY:

• Check the geometry by selecting Tools_checks_geometry and clear the error

To clear these error we can go with Both manual and automatic fix,here I fixed with performing Topo in faces and automatic Fix option.

Model has been divided into four parts as we can generate mesh easily

PART 1:

PART 2:

PART 3:

PART 4:

MESH PARAMETER AND QUALITY PARAMETERS ARE UPDATED:

To Mesh the component Go to MESH button module and select SPOT MESH and mesh the component

For TETRA MESH there should not be any quad element present in the component

The element quality failure has been cleared by reconstruct or or by MV free in GRIDS

Go to volume mesh for tetra solid mesh we have create a property for volume mesh and it was done

VOLUME TETRA MESH ARE GENERATED:

Quality failure for tetra mesh has been cleared by fix quality and by MV free in GRIDS in 2D mesh

VOLUME TETRA MESH ARE VIEWED BELOW:

We are seeing that inside volume tetra mesh are not in a proper align so that only we are calling it as UNSTRUCTURED MESH.

FINAL OUTPUT:

LEARNING OUTCOMES:

At the end of this challenge I can able to:

• How to perform a volume mesh on a solid body.
• Difference between unstructured mesh and structured mesh.
• How to solve tetra mesh failure and surface dents.

CONCLUSION:

Hence the geometrical error and tetra mesh has been performed successfully.converted shell mesh into solid mesh and quality criteria has been cleared as per given quality parameters.