Week 6-Meshing of Hood Challenge

Aim :- Mesh a hood model with mentioned quality criteria.

OBJECTIVE:

• Extract the mid surface
• Geometry cleanup
• Meshing given hood model using the given quality criteria checks
• Good mesh flow.
• Assign thickness

PROCEDURE :

• Import the component and click F to see the component in the GUI area as shown below.

• Delete the solid so that we can work on the surface.

Inner extract :-

Outer Extract :-

hinge reinforcement extract :-

Latch reinforcement extract :-

• Generate Mid-surface & geometry clean-up for all parts, saved in diff. components :-
• view in topo mode for looking for any free edge present in model
• Geom-midsurface

1. Mid-surface of Inner extract :-

• add construction line for better mesh flow
• Geom-Quick edit-split surf line
• Geom-Quick edit-split node
• Geom-Quick edit-toggle edge
• Geom-Quick edit-delete surf
• Geom-Quick edit-filler surf

As inner ectract is symmentric about X-axis we can delete half section for reduce time

option used - Delete-surf

For better mesh flow toggle some lines as shown in snap :-

2. Outer Extract :-

• add construction line for better mesh flow
• Geom-Quick edit-split surf line
• Geom-Quick edit-split node
• Geom-Quick edit-toggle edge
• Geom-Quick edit-delete surf
• Geom-Quick edit-filler surf

As outer ectract is symmentric about X-axis we can delete half section for reduce time.

For better mesh flow toggle some lines as shown in snap :-

Mid-surface hinge reinforcement extract :-

• add construction line for better mesh flow
• Geom-Quick edit-split surf line
• Geom-Quick edit-split node
• Geom-Quick edit-toggle edge
• Geom-Quick edit-delete surf
• Geom-Quick edit-filler surf

1. Mid-surface Latch reinforcement extract :-

• add construction line for better mesh flow
• Geom-Quick edit-split surf line
• Geom-Quick edit-split node
• Geom-Quick edit-toggle edge
• Geom-Quick edit-delete surf
• Geom-Quick edit-filler surf

• add construction line for better mesh flow
• Geom-Quick edit-split surf line
• Geom-Quick edit-split node

• Before meshing the qiality criteria requirements can be filled by the command: preferences + criteria file settings

• Now meshing the parts one by one

1 Inner Panel meshing :-

Option used :-

• 2D- automesh -surf
• 2D - rebuilt
• 2D - qualityindex - all options
• 2D - edit element
• Geom - node edit

Some Meshing Snap

Next step is to reflect the elements to complete capture of inner hood model

• Tools - reflect - elements

1 Outer Panel meshing :-

Option used :-

• 2D- automesh -surf
• 2D - rebuilt
• 2D - qualityindex - all options
• 2D - edit element
• Geom - node edit

Some Meshing Snap :-

Next step is to reflect the elements to complete capture of inner hood model

• Tools - reflect - elements

3) Meshibf of hinge reinforcement extract :-

Option used :-

• 2D- automesh -surf
• 2D - rebuilt
• 2D - qualityindex - all options
• 2D - edit element
• Geom - node edit

4) Meshing of Latch reinforcement extract :-

• 2D- automesh -surf
• 2D - rebuilt
• 2D - qualityindex - all options
• 2D - edit element
• Geom - node edit

Next step is to assign thickness to all parts :-

Checks for free edges and normals after meshing :-

Tools - edges elements

Normals check for al elements :-

CONCLUSION:

The mid surface has been extracted for the given hood panel and the mesh was generated within the given quality criteria.