Project 1-Meshing of Rear Wheel Holder challenge

                                                                       PROJECT-1: MESHING OF REAR WHEEL HOLDER

AIM:

For the given model, extract the mid-surface and generate its mesh maintaining the required quality criteria.

CAD MODEL:

            

PROCEDURE:

• Open the model and view in By Topo mode. Check the surfaces for geometric errors or edge connectivity . 

         

• Delete deformed surfaces from the geometry.
• Use Quick Edit panel to toggle the edges (release the attached edges).

         

• Create new surfaces if required using Filler surf option feom Quick edit panel. 

            

• View the geometry using Wireframe mode to check edges and Toggle them if required.

           

• Replace points to eliminate stray points and toggle the edges.

            

• Repeat the correction methods for other surfaces and edges.

            

         

• Create new surfaces using Ruled option from Surface panel or Spline option from 2D menu if other methods does not provide satisfying results. 

                

        

• Clear all geometrical errors or deformations inorder to get better result during mid-surface extraction.
• Select the Offset option from Extraction options.

         

• Check and compare the obtained mid-surface and the model for surface features.

         

• Usually we use Autocleanup panel for clearing mid-surface errors but due to the geometric complexity, the software crashes.
• Manual method is used to correct the surfaces.  

           

          

          

• Certain features are removed inorder to avoid its interference with quality criteria and mesh flow.

           

• Apply washer around holes to control the mesh flow.

        

• Toggle the lines to suppress (green lines to dotted blue lines) unnecessary construction lines or the feature lines that might affect the quality criteria of the mesh.

       

        

        

• Use Trim option from Surface edit panel to capture the bead line for features as shown below.

           

• Input the required values in the Criteria file settings. 

         

• Set the mesh parameters in the Mesh settings.

        

• Mesh the entire surfaces maintaining the quality criteria and mesh flow.
• Defeaturing of geometry is necessary to maintain the mesh quality.
• Check for free edges and normals of the elements after meshing.      

Final Model:

        

RESULT:

The given Rear wheel holder model has been meshed by generating mid-surface and the quality criteria is satisfied.