Week 5

AIM:

   To apply the volume mesh for the given element by using TETRA ELEMENTS MESHING process using ANSA software.

PROCEDURE:

    * Import the document by downloading the model.

    * Apply TOPO for geometric cleanup

    * Click CHECKS manager and FIX all the errors.

    * Go to MESH Mode and Give LENGTH and GIVE 1 for both perimeters and macros.

Shell mesh:

    * Apply the quality parameters in the given question

    *  Enable the ranges percentage and decrease the DETAILED DEMAND EFFECT, And fix the mesh parameters as given in the question and assign as ORTHO TRIA mesh.

    * Apply SPOT MESH in TRIA mode in flat surfaces and in order to get more proper mesh, give

   RECONSTRUCTION in order to achieve proper mesh

    * Repeat the same process in ORTHO TRIA mode in curved surfaces, in order to achieve the proper mesh in curves without getting distorted.

    * Make sure that the mesh flow should be proper and more trias, and also reduce the OFF ELEMENTS by giving RECONSTRUCTION option.

    * And also there should be no quad elements in the model.

VOLUME MESH:

   Now, its time for going to VOLUME MESH.

   * Go to VOLUME MESH mode and define the material properties.

   * Then give DEFINE>> AUTO DETECT. The deduction automatically detects the components into four parts, and its status do show as UNMESHED.

   * Enable the quality criteria in VOLUME MESH as COLLAPSE and give the value as 0.2.

   * Give every parts in the manager and give as REMESH>>TETRA RAPID MESH and so, the hollow volume in this particular part will be meshed by filling the volume.

   * Repeat the same in the other parts and so the volume of the component will be meshed so far.

   * If any collapsed elements exist there, then Give MOVE GRIDS and select the particular grid and move according to the axis direction.

   * Make sure that all the volume meshed elements should be in trias, not in quads.

   * For viewing the volume mesh, give BOUND option, so the mesh will be appeared in red colour.

   * In order to view the volume, Turn off the CAD mode, and turn on the VOLUME MODE.

LEARNING OUTCOMES:

 From this challenge, I have learnt that the volume mesh can be used for the hollow objects, in which taking the mid surface taking is impossible. So, in order to achieve the volume, Volume mesh is applied.

And also I have learnt that spot meshing is done to bring the better mesh rather than mixed mesh, and ortho tria mode can be used to bring out the proper mesh in the curved regions, without distotring its shape and geometry.

The trias can be used rather than quads, hence the best mesh flow can be brought in the given material.

CONCLUSION:

Hence, from the given challenge model, the proper meshing and the volume mesh is done using ANSA software.