Week 3 - Geometry simplification of an Electronic enclosure assembly

Power board assembly Geometry clean up

Aim

• To convert the power board assembly into ICEPAK bodies using ANSYS spaceclaim.

Objectives:

• Use space claim commands to defeature the power board assembly
• Use ICEPAK commands to convert CAD shapes into ICEPAK primitive shapes
• Save geometry as ICEPAK project file
• Open the saved geometry in ICEPAK
• Check the geometry in ICEPAK

Workflow:

Original geometry

Total number of bodies: 24

Step 1:

• Split the enclosure (Fig.4) using split body command (Fig.3)

Step 2:

Power board assembly components are split using the split body command

Step 3:

• After splitting goto workbench in the toolbar and use Identify objects to identify icepack bodies
• 179 bodies were identified as ICEPAK bodies

Step 4:

• Convert other unidentified geometries using ICEPAK simplify
• For the connector geometry used Level 2 (Polygon fit) with splitting options checked in

• For capacitor, geometry’s used Level 1 (cuboid, Cylinder fit)

• For heat sink used level 2 (polygon fit)

• For box used level 2 (polygon fit)

• Used grille option to air-inlet regions in the enclosure

Step 5:

• After converting all the components as Icepak bodies save the geometry as ICEPAK project file
• Final simplified Icepak bodies

• Open the converted Icepak geometry in Icepak environment from workbench graphical area

Step 6:

• Skeleton of imported Icepak project file

• Enclosure geometry in Icepak

• Support members between PCB board and enclosure

• Internal components with cabinet boundary

Conclusion

• As per the objective, Powerboard assembly simplified using ANSYS Spaceclaim
• Components were converted to Icepak objects using Icepak simplify
• Converted file saved as Icepak project file
• Icepak project file opened in Icepak environment and checked for geometry integrity.