Tool Test 1

MID SURFACE EXTRACTION AND MESHING OF SWITCH PANEL AND FLOOR PANEL MODEL USING ANSA

OBJECTIVE:

1. To check for the geometrical errors and to perform geometry cleanup.
2. To mesh the given component with the required element Quality criteria.
3. To assign thickness after meshing the component.

QUALITY CRITERIA:

S.No	Quality Criteria	Value
1	Target/Average length	4
2	Minimum Length	2
3	Maximum Length	6
4	Aspect	3
5	Warpage	15
6	Skewness	45
7	Jacobian	0.7
8	Minimum Quad Angle	45
9	Maximum Quad Angle	135
10	Minimum Tria Angle	30
11	Maximum Tria Angle	120
10	Tria Percentage	15

GIVEN MODELS:

Component 1: Switch Panel

Component 2: Floor Panel

PROCEDURE:

1. Assign perimeter length of 4 mm and use the topo option on the geometry.
2. Now use the geometry check option to check for the geometrical irregularities.
3. Repair the geometrical errors use the auto fix option and also by manual cleanup.
4. Now remove the unwanted hot points using the delete option.
5. Start extracting the mid surface using the offset and middle options.
6. Use extent and intersect options to connect and remove the surfaces.
7. Use the create curve option to create curves which can be used to create the mid-surface for the thread like geometry.
8. After extracting the mid surface, check for the geometrical errors.
9. Repair the geometrical errors and maintain the connectivity.
10. Remove the double cons which does not satisfy the quality criteria.
11. Assign perimeter length of 1 mm since our target length is 1 mm.
12. Now mesh the mid surface.
13. Use reconstruct, reshape, smooth and fix quality options to repair the elements that does not satisfy the quality criteria.
14. After the successful meshing, create properties for the surfaces and assign thickness.
15. Use draw shells as solids option to see the thickness assigned to the elements.

MID-SURFACE GENERATED FOR COMPONENT 1-SWITCH PANEL:

MID-SURFACE GENERATED FOR COMPONENT 2-FLOOR PANEL:

MESH GENERATED ON COMPONENT 1- SWITCH PANEL:

MESH GENERATED ON COMPONENT 2-FLOOR PANEL:

PROPERTIES CARD CREATED FOR COMPONENT 1- SWITCH PANEL:

PROPERTIES CARD CREATED FOR COMPONENT 2-FLOOR PANEL:

THICKNESS GENERATED ON COMPONENT 1-SWITCH PANEL:

THICKNESS GENERATED ON COMPONENT 2-FLOOR PANEL:

TRIA PERCENTAGE ON COMPONENT 1:

TRIA PERCENTAGE ON COMPONENT 2:

Link to the meshed models: https://drive.google.com/open?id=18wM0di0xekbAjCB8VqgiO5i6D2Ybpeey

CONCLUSION:

1. The geometry cleanup and mid-surface extraction has been completed successfully.
2. The given geometry has been meshed satisfying the given quality criteria
3. Successfully created property cards and assigned thickness to the surfaces.
4. Time taken for the successful meshing of the first component is 5 hrs and for the second component is 2 hrs