Project 2 - 2D meshing on the instrumental Panel

AIM :

Mesh the component with given element Quality criteria. We have to maintain good mesh flow, After Meshing the component the thickness has to be assigned.

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

PROCEDURE :

• Import the cad model in ANSA software

• Intially check the geometry for errors or sharp edges or single cons or crack faces using checks-geometry. select all the errors and fix them.

• After fix the orientation sigle colour in grey colour, hrey is apositive colour

• Now check the geomentrical errors, In this is lot of geomentrical errors in my model

• Half of the errors only fixed in the auto , otherwise the fix the manually
• This ip console is half part only given , they are not proper to cut the half part then correct the parent geomentry in ip console

• Now clear the all geomentry cleanup in my model

• we are not create a midsurface, we can create the midelement with the help casting option and align manager
• Align manager with the help of align the surface or element
• Now select the midsurface casting option and give the mesh parameter and minimum thickness of the componentn i will give the 0.5mm

• After give the all parameters now click on ok to create the midelement, it will minimum 20 - 30 min
• After generated the midelement switch on the align manager
• Now check the surfaces are right or not sompare with parent geomentry, main check the all dog houses
• some dog house are fully correpted that dog house are delete created by manually

• Dog house are manually captured using curves create line and project the curves bottom surfaces and fill the elements and the join elements
• After create the dog house manually give the definitions areas and perimeters
• Flat surfaces definion are middle definition curves surafce are plane definition
• perimeters definitions are free edges are give the face definition attached surface are sive imprint are add to continuous the perimeter other the points and sharp

• other dog houses are small error, that errors fixed in align or give the proper definition
• And the cylinderical porsion are captured in plus symbole sign
• After correct the all surfaces, now check the any empty areas and perimeters
• iI the empty are present in my model correct the all emptys
• After finish all the surface now set the mesh perimeters and quality criteria
• Now correct the mesh flow and some of the construction are supressed
• They are no opposite trais
• Trais not touching each others
• They are no back to back trias
• Trias are not touching free edges and feature line
• Lot of triple are presented in model, i will be keep on the off elements near the triple cons

• Off elements are present in 227 (0.51%)

• after finishing the all assingining the thickneckness by using automatic method

LEARNING OBJECTIVE :

• To learn how to refine the dog house and how to create the dog house
• To learn how to align the surface and align the elements
• To learn how to fill the elements and attach the elements
• To learn how to assign the thickness in automatic method

Conclusion

successfully extracted mid-surface of IP substrate model capturing all features present in the geometry and meshed the model with given element quality criteria.