SHELL MESH AND MID SURFACE EXTRACTION ON FLOOR PANNEL

AIM:-To perform meshing in the floor panel

PROCEDURE:-

• Import the model into a hyper mesh

• Assign the quality and mesh parameters

• For geometry cleanup, we need to go to geometry and select quick edit

• To split the surface we use split with node and split with line
• To reduce the concentration at the hole we need to select the washer
• To unsplit surface, we need to use unsplit surface
• To paste or to trim we use toggle edges
• The raw geometry has the missing surface to fill the surface we need to use the filler surface
• To delete surface we use delete surf
• To replace or combine the points we need to use replace point
• To add or remove a point we need to use the add/remove point
• Mid surface after cleaning the geometry

• To extract the mid surface we need to go to geometry and select the mid surface in the column of surface
• We need to change the options of auto mid surface we need to goto extract option and we need to set the option as skin offset

• As the part is sheet metal we can take auto mid surface extraction

• There are more geometrical issues are there by using the geometry clean up tool we had completed cleaning the surface

• The major option for doing meshing is to perform the mesh if any flow issue is there we need to mesh

• For quality issues, we use the quality index

• PLACE NODE to move the nodes freely to reduce the quality
• Element optimizer will optimize the element quality
• Smooth will smooth the mesh flow and adjust with respect to the min and max size
• Split edges are used to split the edge of the quads
• Drag tria which used to drag the trias from one point to another point
• combine trias it will combine two tria in a quad
• Parts that are been meshed

• It will reduce the quality and gives the mesh
• But it does not give the option to change the number of nodes

• It refines the mesh and gives good mesh flow
• But by using this we will have lot of connectivity issues

• F3 is used to paste the nodes of the mesh which are not in connectivity

• It is used to refine the size of the mesh when it is been distorted

• If the mesh has quality issues it will cover all sort of errors
• Component after completion of mesh

• And after meshing we need to assign the thickness of every subcomponent
• To assign we need to create the property and assign thicknesses
• And another method is to assign the thickness automatically

• The final evaluation is to check free edges

CONCLUSION:-

• We must clean the geometry of mid surface before entering into the mesh
• We must avoid trias that are facing opposite and back to back
• We must provide a perpendicular construction line that enhances the quality of the mesh
• Avoiding trias in a certain area is difficult then we must give space between them
• While comparing tria vs quality, we must give importance to quality first
• By understanding the symmetrical structure of the part we can minimize the time