Bottle Cap modelling using ANSA

AIM :

To perform a geometry clean up and shell mesh the given model of a bottle cap with the given quality criteria.

REQUIRED QUALITY :

S.No	Quality Criteria	Value
1	Target/Average length	1
2	Minimum Length	0.5
3	Maximum Length	3
4	Aspect	3
5	Warpage	15
6	Skewness	45
7	Jacobian	0.7
8	Minimum Quad Angle	45
9	Maximum Quad Angle	135
10	Minimum Tria Angle	30
11	Maximum Tria Angle	120
10	Tria Percentage	15

PROCEDURE :

1. The given model is opened in ANSA v19.1.5 and the model refined by selecting Length>>Perimeter in Mesh tools and putting the value to 1mm.
   
   
2. The model is then checked for Geometry Errors and cracks.
   
   
   
   
3. Measure the thickness of various regions of the model. Since the model is having varied thickness in different regions, the mid surface of various parts formed seperately using different techniques and saved as a new PID.
   
   
   
   
4. Different parts are saved as new PID and as follows :
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
5. The Mesh quality and Quality Criteria were set according to the requirements.
   
   
   
   
6. Mesh is then generated to Mid-Surface generated. The length of elements was set to 1mm by using mesh>>perimeter>>length.
7. The mesh is generated using Best option and it is then reconstructed to match the quality criteria.
   
   

RESULT :

• A geometry clean up done with given Bottle Cap Model.
• Mid-Surface was generated and refined.
• And it was then meshed according to the Quality Criteria given.
• Finished Mesh :
  
  
  
  
  
• Apply thickness to the mesh by enabling "draw shell as solid" option under Presentation parameters in Quality Criteria tool.
  
  
  
  FILE : Bottle_cap_file