Assignment 1-2D Meshing Challenge

AIM:

To perform geometry cleanup, mid-surface extraction and meshing on the given models.

OBJECTIVE:

The objective of the assignment is to learn & get familiar with the hypermesh tool.

MODEL:

Part 1:

Part 2:

Part 3:

PROCEDURE:

Part 1:

First the model is imported using the import geometry command.

Then the model is kept in topo mode to view all the edges & geometry.

First, geometry/ topology cleanup is performed.

Missing surfaces are created or patched up.

Extra surfaces, if any, are trimmed up.

T-edges are checked by masking each surfaces separately to check if 3 surfaces meet at the edges. If any duplicates are found, they are deleted.

After geometry cleanup is completely done, the mid-surface is extracted.

Holes below 5mm can be ignored. So they are patched up.

Then the construction lines are re-arranged by toggling & creating new lines.

Once this is completed, meshing is started by meshing each surface one by one.

After meshing is completed, material & property cards are created & assigned.

Part 2:

First the model is imported using the import geometry command.

Then the model is kept in topo mode to view all the edges & geometry.

First, geometry/ topology cleanup is performed. If the geometry is perfect, the mid-surface is extracted.

Holes below 5mm can be ignored. So they are patched up.

After that, meshing is started by meshing each surface one by one.

After meshing is completed, material & property cards are created & assigned.

Part 3:

First the model is imported using the import geometry command.

Then the model is kept in topo mode to view all the edges & geometry.

First, geometry/ topology cleanup is performed. If the geometry is perfect, the mid-surface is extracted.

Then the construction lines are re-arranged by toggling & creating new lines.

Once this is completed, meshing is started by meshing each surface one by one.

After meshing is completed, material & property cards are created & assigned.

RESULTS:

Completed model:

Part 1:

Part 2:

Part 3:

Component collectors:

Part 1:

Part 2:

Part 3:

CONCLUSION:

The geometry cleanup, mid-surface cleanup & meshing is performed on the given models. Then the material & property cards are created & assigned accordingly.