Week - 4 - 2D meshing for Plastic components

AIM-

For the Plastic Bottle Cap model, check for geometrical errors and take the mid-surface using suitable mid-surfacing techniques. PID and Thickness assignment has to be done for all the mid surfaces. Mesh the same with the given element Quality criteria.

PROCEDURE

* Import the model into ANSA software

* Geometry clean-up has to be done to the given model and fix all the given geometric errors.

*Midsurfacing

Extracting the mid-surface by manual mid-surface technique, i.e, by the off-set tool.

Measure the thickness of each part and give the respective offset value for extraction of the mid surface.

By using the middle tool in surfaces, we can easily get the mid surface of an equal-thickness component

Setting thickness:

Set the individual thickness for each component by using Set PID tool

Meshing:

Press F11 and set the quality criteria values

Enter the perimeters and macros lengths (1)

Result:

Learning Outcomes, problems faced and Conclusion:

• Learned to obtain good mesh flow and extract mid-surface.
• Learned to extract mid surface of complex components and parts like below
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• Meshing of sharp or uneven edges was difficult to obtain
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