Week 6-Meshing of Hood Challenge

Aim: To perform 2D meshing on the Hood model 

Objective: To extarct the mid surface of the hood model and perform 2D meshing on the surface with the given quality criteria 

Target Element Length = 5 Units

S.N	Quality Criteria	Value
1	Aspect Ratio	5
2	Skewness	45
3	Warping	15
4	Taper	0.5
5	Min. Length	2 Units
6	Max. Length	8 Units
7	Min angle Quad	45
8	Max angle Quad	135
9	Min angle Tria	20
10	Max angle Tria	120
10	Tria %	10

Procedure: 

Step 1: The model was downloaded as a HM file and and after that geo was checked for free edges and damaged surface's 

Step 2: The Mid was extarcted each part and then meshed simultanesous

Step 3: First of all the mid was extracted for Latch then after that manual clean up was done on the surface such as unneccessary points were removed and the edge less than 2mm was toggled

                                        

Fig : Mid Latch after Manual clean up                             Fig : Meshed Latch part 

Step 4: The latch was meshed using mixed elements and further the same were cleared which were failing for quality criteria and rebuilding the mesh help in reducing tria elements 

Step 5: The mid of hinge was extracted and manual cleanup was done on the model and after that meshing was done on the model 

                                                

Fig : Mid hinge (Manual cleaned)                                             Fig: Meshed hinge part 

Step 6: The Inner extrat was meshed after manual clean up and the element clean up was done on the model 

Step 7: The fillet region on the inner extarct was having lots of failed element which were cleaned using clean up tools  and finally the proper mesh was attained and then rebuilding of mesh was done surface by surface and finnally the model was ready 

                                   

    Fig:Mid Inner extract                                            Fig: Meshed inner extract

Step 8: The property was assigned to each part with material 

                        

    Fig: Mid outer extract                                Fig: Meshed outer extract

Conclusion: Hence the model was meshed with the given QC and proper mesh flow was attained

Learning outcomes: got an idea how to extarct mid and manually clean it for  proper mesh flow.

learned how to mesh fillet regions and defeature the fillet's