Tool Test-2

Aim:

To extract the middle surface of the component and mesh it as per the quality criteria provided.

Procedure:

Import the model intake manifold into ansa topo tab.

Check for the topological errors through the checks manager-> geometry.

Select the errors and use the auto fix option to fix the errors.

In case of unfixed errors, go with the mannual fixing options in order to remove the errors such as overlapping faces, triple cons, unchecked faces,etc,.

Use the lock option to save and control the view of as required.

The component is first shell meshed, with 2d elements and then the tetra mesh is carried out.

The 2d meshing is carried out face by face inorder to obtain a fine mesh flow.

Since this is hollow mould component the inner enitites of the structure should also be meshed.

Now insert the quality cretria values in the quality crietria tab.

Go to mesh parameters and set in the values.

The elemental length for the entire component is set by selecting the component and giving the value as 3mm in the perimeters-> length options.

Use the spot mesh option under mesh generation slot to obtain a better mesh.

Use the tria elements to capture the mesh at flatter regions and ortho tria elements at curved region.

Ortho tria elements helps is better capturing of convergence

The mesh is carried out in the face by face order.

In case of deviated mesh use the reconstruct option on the same slot to fine tune the mesh.

Use the smooth option after every mesh operation inorder to obtain a fine mesh flow.

After meshing the shell entities with 2d mesh, the volume that needs to be 3d meshed is defined using the volume-> define option

Select the volume manually and remesh using the tetra fem option to obtain a volumetric mesh.

The cross section of 3d mesh is shown below.

Elements with fail for min, max & tet collapse are highlighted.

It is then rectified using the fix quality, reconstruct and smooth options, which are provided under the improve slot under the v.mesh tab.

the PSHELL property shows the shell element ie., the parent entity and the PSOLID shows the terta mesh element.

Result:

Thus the given component is tetra meshed as per the required quality.