Project 1 - Meshing of Floor Panel

                                                                  PROJECT 1: MESHING OF FLOOR PANEL

 

 

OBJECTIVE:

To conduct the following operations on the given CAD model of Floor Panel:

1. Geometry Cleanup.
2. Mid-surface extraction.
3. Meshing of the mid-surface maintaining quality criteria.
4. Assigning thickness for the mid-surface.

CAD MODEL:

              

                                                                  CAD Model of Floor Panel

PROCEDURE:

1. Importing CAD model:

• Open the geometry model. Use Topology option to clear the cons and check the model orientation using Entity Drawing Style in Menubar.

             

•  Check and assign PID and Materials from Lists menu (if required).

                           

2. Geometrical Clean-up:

• Check for geometrical errors using Checks Manager option. Execute the geometry after selecting the required options.

                              

• Clear the errors using auto-fix option in Checks Manager from Tools menu.

         

• If the errors still persist, then they have to be corrected manually using TOPO options.

          

• Here the highlighted regions in the model indicates faces or cons that needs to be corrected.
• Few of the errors and their cleanup procedure are shown below:

Example 1

       

      

       

       

Example 2

       

       

        

         

          

          

Example 3

           

          

         

         

• All similar errors are cleared at multiple regions of the model.
• Rerun the geometry check again for zero errors.

        

3. Creating Mid-surface:

• Check the model thickness at different spots using Measure option in Utilities menu.

            

• Store the measurement data in Database if required.
• The given model has uniform thickness of 1 unit (approx.) throughout as per the measurement data shown above.

            

• Extraction of mid-surface of the model can be done using Mid-Surface option from Topo menu. 

            

            

           

           

• Assign a new PID and thickness value for the created mid-surface.

            

• Store Lock the mid-surfaces and parent assembly model view separately.

4. Quality Criteria and Meshing:

• Change the Length Parameter to value 5 for both Perimeter and Macros.

               

•  Select and enter the values required in the Quality Criteria box from Utilities menu.

                  

• Input the required mesh length and minimum length in Mesh Parameters from Utilities menu.

                  

• Select Classical Mesh option from Mesh module.
• Mesh the features sequentially and use Shadow Drawing Style to view the mesh quality deviations.

             

             

            

              

• If similar features are found within the geometry, then we can use Transform (Copy) option from Utilities menu.

Note: Check and compare the dimensions of both the features. The topology of cons after copying can only be done if dimensions match.

                 

                 

                

                

•  Correct the mesh flow and quality using Mesh options.

               

5. Final Model:

                

RESULTS:

The given Floor Panel model has been completely meshed by assigning thickness and maintaining all the quality criteria.