MESHING OF A BOTTLE CAP MODEL USING ANSA

MESHING OF A BOTTLE CAP MODEL USING ANSA

objective

• To create 2D mesh for a bottle cap model with given element quality criteria and to assign midsurface thickness to the shell element using ansa

METHODOLOGY:

• GEOMETRY CLEAN UP
• MIDSURFACE EXTRACTION
• MESHING AS PER CRITERIA
• ASSIGNING THICKNESS PROPERTY

QUALITY CRITERIA

PROCEDURE

• As the thickness of bottle cap model is very less .it is good to go for 2D meshing instead of 3D meshing

ORIGINAL GEOMETRY

1.GEOMETRY CLEANUP

• The given model is performed with to view the cons properly.then it is subjected to geomety clean up.
• the errors are checked and fixed as shown in figure.

the outer surface of the model is oriented in grey colour mode.

2.MIDSURFACE EXTRACTION

• The given model is complex and has variable thickness.hence different mid surface extraction methods are adopted.

1. offset method
2. middle option method

3.MESHING

• The given element quality condition is entered into the quality criteria tab and it is saved.
• Batch meshing algorithem is used and the element type is chosen and mixed.

Advantge of batch meshing

• batch mesh generation is a well organized way of meshing complex components.
• the mesh flow in batch meshing is perfect.
• feature capturing is perfectly done in batch meshing.

4.ASSIGNING THICKNESS PROPERTY

• while performing midsurface extraction ,midsurface parts and properties are set to auto create options.
• in the propert tab  the mid surface are selected and renamed according to their names
• the thicKness values of each part are entered.