Week 4

OBJECTIVE-

For the given component, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component the thickness has to be assigned.

S.No	Quality Criteria	Value
1	Target/Average length	1
2	Minimum Length	0.5
3	Maximum Length	3
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-

STEP-1 EXTRACTION OF THE MODEL

FIG-1: MODEL EXTRACTED

STEP-2 EXTRACT MID SURFACE

EXTRACTION OF MID SURFACE HAS TWO SECTION , BECAUSE THIS IS A PLASTIC MODEL IT HAS VARIYING THICK FIRSTLY SEGREGATION OF PARTS WITH DIFFERENT THICKNESS TO HAVE MIDSURFACE BY SURFACE OFFSET AND AT PLACES WHERE THERE IS THREADING AND RIBS , MIDDLE CURVE EXTRATION AND NEW SURFACE FORMATION TECHNIQUE HAVE BEEN USED . SOME IMAGES ARE ATTACHED FOR REFFERENCE. EACH PART WITH VARIYING THICHNESS HAVE DIFFERENT PROPERTY TAB AND THICKNESS ASSIGNED FOR THE CONVENIENCE OF MESH GENERATION .

FIG-2 MIDSURFACE OF MODEL

FIG-3 MID SURFACE OF INNER CENTRE PART WITH INTERNAL THREAD

FIG-4 VARYING PROPERTIES ASSIGNED PARTS WITH VARYING THICKNESS

FIG-4 MID SURFACE UPPER PART ONLY

FIG-5 MID PLANE FROM BOTTOM VIW OF COMPONENTS SHOWING RIBS.

STEP-3 DO COMPLETE GENERATE MESH AND QUALITY CHECK AS PER REQUIRED SPECIFICATION ABOVE MENTIONED IN THE OBJECTIVE.

FIG-6 FINAL RESULT

CONCLUSION- THE OVERALL COMPONENT HAD MANY COMPLICATED PLACES AS ALL QUALITY CRITERIA ARE SATISFIED MANY NEW METHODS OF GENERATING MID PLANE AND MESH AT COMPLEX SPACES ARE LEARNING.