Manual mid-surface extraction using hypermesh

Objective :

To import the given model and perform functions like extracting mid-surface ( manually ) , 2D mesh and then assign thickness

Procedure :

1. Import the given model and change the interface to RADIOSS
   
   
2. Split the parts and perform the functions similarly to each part of the component
3. Delete solids of the part before extracting mid-surface for it
   
   
4. Look for the minimum range of fillets and remove them using defeature option
   
   
   
   
   
5. After which extract mid-surface manually as follows
   
   - Measure the thickness of the surface in which you are going to extract mid-surface
   
   - Go to Surface Edit option choose Offset
   
   - Specify the offset value i.e., half the thickness of the surface you want to create mid-surface
   
   - Before performing offset , select the surface you want and Duplicate it
   
   - Select Reverse normal to change the direction of the offsetting surface
   
   
   
   
6. Split the part into two half if the part seems to be symmetrical , so that to save time
7. To split the part Use trim with Surf/Plane option
   
   
   
   
   
8. After you split the part , delete half the surface using delete option in the main menu bar
   
   
   
   
9. After which clean the surface manually for topological errors by using tools such as Toggle edge , Filler surface , Extend surface , add or remove points and replace points etc
   
   
   
   
   
   
   
   
   
10. After cleaning the surface , perform 2D mesh on the surface
    
    
    
    
    
11. After meshing , arrange and edit the mesh according to given quality criteria using quality index option
12. After which reflect back the other half using reflect option from Tool menu bar
    
    
    
    
    
13. After relect , check for the component's edge using Edges option form the Tool menu bar
    
    
    
    If there are no edges found in between , proceed to next step if not solve the edges using Equivalence
    
    
14. Next assign thickness in the tool tab area for the component
    
    
    
    
    
    
    

Result and conclusion :

The given model is imported , extracted mid-surface function manually , 2D meshed , and thickness assigned as mentioned in the procedure

Model :

Back door lower body - https://drive.google.com/file/d/1hPgmG5KonKgF8nIAny5VBniJLMAJ4iTZ/view?usp=sharing

Back door upper body : https://drive.google.com/file/d/1ddotYJEPuqpYvp-HIFo5kCZE468RRXqt/view?usp=sharing

Back door inner panel :

https://drive.google.com/file/d/1Hs9NueHyJn55spVVxIg-Ehr5v_ddrwHE/view?usp=sharing