Tool Test-2

AIM:

• To do a pre-processing on a given Rearview mirror component model using ANSA.

OBJECTIVE:

• To check the geometrical error on the Rearview 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 THE 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 geometrical errors.
• 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.

• After clicking on the check geometry the geometrical errors will display.
• The geometrical errors can be fixed manually or automatically.
• In our case we fixed the error automatically by right clicking on the error and click fix.
• Once the model has no error it will show green status in the above image and we can proceed further.

2D MESHING:

QUALITY CRITERIA:

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

• Then the values of mesh parameters are entered.
• For that go to mesh parameter tool that is available in the tool bar of ANSA.

• Then the meshing is done using mesh generation > spot mesh tool. This tool generates the mesh using the element type given.
• The curved faces are given the mesh element type as ortho tria and the flat surfaces are given the mesh element type as tria.
• Then the created mesh is refined using the shell mesh > improve > reconstruct, smooth, reshape tool in mesh module of ANSA.

VOLUME MESH:

• Now, we will provide the solid quality criteria as given in the problem statement.

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

• Once it is done the status on the volume mesh list will show meshed.
• Ensure there is no OFF elements in the quality.

LEARNING OUTCOMES:

• Learned how to mesh the given component using tria and ortho tria elements.
• Learned how to define the volume and apply volume meshing.
• Learned how to clear errors such as kink, dip and tet collapse elements.

CONCLUSION:

Geometry cleanup, 2D meshing and volume meshing of the given Rearview mirror model were successfully done.

TIME TAKEN - 5 hrs 30 mins