Week 5

AIM:-performing geometry clean up and solid meshing or tetrahedral meshing of a given rear view mirror model as per given quality criteria.

GIVEN QUALITY CRITERIA

MIN LENGTH 0.5

MAX LENGTH 2

TET COLLAPSE 0.2

SOLID MESHING:-

solid meshing is a 3d meshing where we can use this meshing if thickness of the component is above 5 mm similarly 2d mesh is for component which have below the 5 mm thickness.here we can fill entire volume with the mesh thats why it is called as the volume mesh.volume mesh requires more computational rather than shell mesh.

there are two types of solid mesh:-

1.STRUCTURAL MESHING:we are having only the quad elements in mesh there is no elements rather than the hexa elements.

2.UNSTRUCTURED MESHING:we are having mixed of tria elements and ortho tria elements namely called as tetra elements.

GEOMETRY CLEANUP:-

• after downloading the model we have to give topo to stich the entire component.
• then for checking of the model and to fix the errors we have to check the geometry.

SURFACE MESHING:-

• here we have to mesh the surface using spotmesh commands with the help of both ortho trias and normal trias specially used in curved areas .
• before we going into the mesh we have to set the quality criteria and meshig parametrs.
• in presentation parameters enable the the tick to the %of elemnts and put the details of demand effect to all details.
• in mesh parameters we should give the the target element length,min length and max length as shown below image.

IMAGES OF INDIVIDUAL SURFACE MESHING:-

VOLUME MESH:-

after surface meshing we have to do the volume mmeshing but at first we have to define volume fr that.

• Then we have to remesh the volume either in the form of tetra rapid or as tera FEM algorathim as per our requirement.
• before going through the volume mesh we have to enable the tet collapse and set the value to 0.2

LEARNING OUTCOME:-

• i understand how to generate the volume mesh or tetrahedral mesh in this challange.
• i learned where i have to used normal trias and ortho trias.
• how to fix tet collapse in this model.

CONCLUSION:-

THE given rear view mirror component checked for geometrical issues and meshed with tetrahedral mesh with given quality criteria with no tet collapse