Tool Test-2

INTAKE MANIFOLD MODELING USING TETRA MESH IN ANSA:

AIM:

To perform volume mesh using tetra elements for an engine intake manifold model.

METHODOLOGY:

• Geometry cleanup.
• Shell meshing for outer surfaces.
• Volume mesh.

QUALITY PARAMETERS:

S.NO	QUALITY CRITERIA	VALUE
1	TARGET/AVERAGE LENGTH	5
2	MINIMUM LENGTH	3
3	MAXIMUM LENGTH	7
4	TET COLLAPSE	0.2

PROCEDURE:

The engine intake manifold is imported into the ANSA.

GEOMETRY CLEANUP:

• A topo operation is performed on the model to view the attached edges.
• The model is oriented in such a way that outer surface is grey in colour and inner surfaces are yellow in colour.
• The model is checked for its geometrical errors.
• The errors such as single, triple cons are fixed using auto-fix option.
• After clearing all the errors geometry check was rerun to confirm whether all the errors are corrected.

SHELL MESH:

• All the construction lines are rearranged in order to capture the features perfectly and to get a good flow of mesh.
• All the outer surfaces are meshed using trias.
• The curved regions and circular regions are meshed using otho tria elements for perfect capturing of the feature.
• The quality checks are done and minimize the errors.
• Some of the regions, the errors are compromised for better feature capturing.

VOLUME MESH:

• The first step is to define the volume.
• It can be done using define option under volume module button in v.mesh module.
• Using tetra fem the volume is meshed.
• The quality check is done for checking collapse errors.
• The tet collapse errors are fixed by using move grids and fix quality options.
• The quality check run to check any quality errors in volume mesh.
• Then, check for kinks or dips on the surface.
• These errors are fixed by using move grids option.

CONCLUSION:

The intake manifold is volume meshed using ansa with satisfying the quality conditions.

LEARNING OUTCOMES:

• Solid parts meshing.
• Removing quality errors in the mesh.
• Volume defining and meshing.

NOTE:

It took me around 5hrs to mesh the entire model.