MESHING THE BACKDOOR GEOMETRIES OF DIFFERENT CARS USING HYPERMESH.

The main objective is to mesh the backdoor component according to the quality criteria given below.

Target Element size - 5mm

S.N	Quality Criteria	Value
1	Aspect Ratio	5
2	Skewness	45
3	Warping	15
4	Taper	0.5
5	Min. Length	4mm
6	Max. Length	7mm
7	Min angle Quad	45
8	Max angle Quad	135
9	Min angle Tria	30
10	Max angle Tria	110
10	Tria %	15

Procedure:

• Imported the file.
• Deleted the solid materials.
• Extracted the mid surface using the auto and manual extraction method.
• Performed topology cleanup.
• Edited the surface using the options like toggle edges, split surface using nodes and lines.
• Added and removed some points using the quick edit option.
• Meshed the split surfaces one by one.
• Changed the mesh density for the even mesh flow.
• Changed the mesh style according to the split surfaces.
• Used some options like node edit, edge edit, and edit elements.
• Performed the quality of meshing using the option quality index and check elements.
• Checked the quality until it satisfies the given criteria.
• Checked for any free edges presence.
• Used the reflect option to reflect the mesh elements to the body 2.
• saved the file.

Images of the model:

Inner panel:

Upper panel:

Lower panel:

LINK TO VIEW THE MODEL: 1.BACK DOOR OF A CAR

2. Element quality criteria:

S.N	Quality Criteria	Value
1	Target Element Length	5
2	Aspect Ratio	3
3	Skewness	45
4	Warping	30
5	Taper	0.5
6	Min. Length	3mm
7	Max. Length	7mm
8	Min angle Quad	45
9	Max angle Quad	135
10	Min angle Tria	30
11	Max angle Tria	110
12	Tria %	15

Procedure:

• Imported the file.
• Organized the components separately by selecting the surfaces one by one.
• Performed topology cleanup for the surfaces.
• Extracted the mid surface.
  1.used skin offset option for the inner panel midsurfacing.
  2.used manual method for the upper and lower panel midsurfacing.
• again performed topology cleanup for the midsurfaces.
• split the surfaces to attain proper mesh flow.
• meshed the split surfaces one by one.
• Changed the mesh style according to the split surfaces.
• Used some options like node edit, edge edit, and edit elements.
• Performed the quality of meshing using the option quality index and check elements.
• Checked the quality until it satisfies the given criteria.
• Checked for any free edges presence.
• Used the reflect option to reflect the mesh elements to the body 2.
• saved the file.

Images of the model:

Upper panel:

inner panel:

lower panel:

Result:

Hence, the backdoor components are meshed according to the given quality criteria.

LINK TO VIEW THE MODEL: 2.BACKDOOR OF A CAR