Week- 5 - Solid meshing

AIM :

To do a pre-precessing on agiven Rear View Mirror component model using ANSA.

OBJECTIVE :

• To check the geometrical error on the Rear View Mirror model.
• To generate 2D mesh on the components based on the quality criteria given.
• To generate volume mesh on the component using tetra elements.

PROCEDURE :

Importing CAD Model :

• 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.
• In ANSA we can import all types of CAD software file formats.

GEOMETRY CLEANUP :

• Before working on the model we need to check whether the model has any geometerical errors.
• To check the geometerical errors go to check manager that is avaliable at the tool bar.
• In the check manager select geometry and click execute.

• After clicking on the check geometry the geometerical errors will display.

• The geometerical errors can be fixed automatically.
• Click ctrl+A and select all , hit right click the auto fix.
• 100% excecution will be done.

2D MESHING :

• First the model is splitted into 4 components based on the property. The four different components are shown below.

QUALITY CRITERIA :

• Go to quality that is avaliable is tool bar.
• The criteria that is given in the question are selected and given the value and clicked apply and ok.

• The the values of mesh parameters are entered.
• For that go mesh parameter tool that is avaliable in the tool bar of ANSA.

Now start the the meshing of curved surface one by one by using spot mesh->ortho tria.

VOLUME MESH :

Now we need to give the solid quality ceriteria for volume meshing.

• Then the volume is defined by using the define option in volume mesh module.
• Then the solid property is created.
• Now do to list option and right click on the solid property and click remesh and select the volume type as tetra rapid to obtain the volume mesh.

The volume Mesh is now generated.

LEARNING OUTCOMES :

1. Learned how to mesh the given component using ortho tria and trias.
2. Learned how to clear kinks,dip and tet collapse.
3. Learned how to perform volume meshing.

CONCLUSION :

Geometry cleanup , 2D meshing and volume meshing of the given Rear View Mirror model were successfully performed.