TETRA MESH FOR REAR VIEW MIRROR 

                                                           TETRA MESH FOR REAR VIEW MIRROR 

AIM: Tetra meshing for the rear view mirror by using ANSA

PROCEDURE:

    STEP 1 : Geometry cleanup.

    STEP 2 : Defeaturing.

    STEP 3 : Ortho Tria Meshing.

    STEP 4 : Volume Defining.

    STEP 5 : Check for TETCOLLAPSE.

GIVEN QUALITY CRITERIA :

STEP 1:

    Geometry cleanup

        In this step we need to do geometry cleanup for the given model 

    Geometrical error's are cleared by using con's release,new face's,applying topo etc 

    In the above figure it is showing some triple con's error's that we need to fix it by using release cons's and AUTO FIX.

Geometrical Erro's are Fixed 

STEP 2:

    Defeaturing 

        Before going to defeaturing give mesh length 

        MESH MODE>PERIMETER>LENGTH 

        After assinging the mesh length remove the line's which is less than minimum length .

MIRROR STAND

MIRROR FRAME

STEP 3:

    MESHING 

        Before going to mesh assign mesh parameter and quality criteria as shown in figure

MESH PARAMETER

QUALITY CRITERIA 

PRESENTATION PARAMETER'S

    After assinging quality criteria and mesh parameter now move to mesh 

    In mesh there are many type's like mixed,quad,tria,ortho tria etc

    Here we are using ortho tria and tria 

    Ortho tria in Fillet region for better mesh flow 

    tria in Flat region 

MIRROR FRAME

MIRROR

FRAME ROTATING BALL

MIRROR STAND

 STEP 4:

    Volume defining

        Once mesh is done we need to define the volume under volume mesh>Define>Auto

        ANSA will automatically define the volume of all 4 Part's 

        After define we need to do remesh the volume part's by using Tetra Rapid or tetra FEM, here we are using Tetra Rapid 

        Tetra meshing ia an unstructured mesh Tetra rapid and Tetra FEM are commonly used mesh in volume mesh 

        Tetra Rapid: In this type of mesh , this mesh algorithm mesh's volume with tetra element's

        Tetra FEM: In this algorithm mesh create a tetra hydral mesh inside the selected volume

        This is widely used in structural application's.

MIRROR STAND

FRAME ROTATING BALL

MIRROR FRAME

MIRROR

STEP 5:

    Check for TETCOLLAPSE

         After defining the volume under volume mesh we need to check for Tetcollapse error's

         If any tetcollapse error's will be their mean's we need to fix those error's by using MV free, Fix quality 

RESULT:

    All part's of REAR VIEW MIRROR is succesfully meshed as per the given quality criteria.

LEARNING OUTCOME'S:

1. Learned how to fix the geometrical error's.
2. Learned how to create ortho mesh.
3. Learned how to slove off element's in 3D mesh.
4. Learned how to define a volume.
5. Learned how to assign solid property.
6. Learned how to generated a volume mesh in the given model by using tetra rapid.
7. Learned how to fix tetcollapse error's for vo;ume mesh.

CONCLUSION:

     Tetra mesh is created for the REAR VIEW MIRROR as per the given quality criteria by using ANSA.