Week 5

AIM

TO genarate unstructured volume mesh for rareview mirror

The cad component imported in to ansa work bench and the component has no connections with the entities

I run topology for overall component so that the component can regain its original connections with entities

I checked for geometrical errors and errors found are cleared by auto fixing the errors

and the geometry is clean for meshing process

MESHING

As the component is casting component triangular elements should be used

To create volume mesh we need to create tetra/Hexa mesh

I have done some adjustments on the cad so the Tetramesh will not fail for minimum or maximum length

MESHING PARAMETERS

I have created hexa mesh by using otho tria and tria options is the mesh deck in spot mest tool in the curved faces i used ortho tria option as it gives better feature capturing of the entity

And in the flat surfaces I used tria mesh

MESHING CRITERIA

The following criteria is used for creating volume mesh

After creating tetra mesh on the component

VOLUME MESH

After creating tetra mesh on the component we need to create volume mesh to create volume mesh we need to change from mesh deck to volume mesh deck

in this deck entities are converted from pshell to psolid compnents where the properties are shown in list if no component is detected in list

we can define by using define tool in volumes manually are auto detect option

After volumes detected in lists we create volume mesh

by right clicking on the volume trere is option remesh we can create Tetra rapid or Tetra fem mesh

I havve used Tetra fem mesh as it gives better result compared to tetra rapid

volume is filled with unstructured tera elements so as to create a solid component

I checked for any failing elements tetra elements are failing for minimum and maximum length and we can ignore minimum and maximum element failure

No Element is failing for collaps in both tetra rapid and tetra fem but number of off elements are more which are failing for minimum and maximum length

OUT COME

By this challeng i have understand how to create tetra/volume mesh

CONCLUSION

in this component i created tetra rapid and tetra fem volume mesh i get better results in tetra fem i used tetra fem meshing