Week 6-Meshing of Hood Challenge

Aim:

Create the mid surface and mesh the given Hood components and clear the quality criteria.

Given data:

Follow the below-mentioned quality criteria, mesh the component given below and assign thickness:

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

Given CAD:

Procedure:

¬ Initially import the geometry into Hypermeash.

¬After that delete the solid parts.

¬ Then going to extract mid surface using autoextract method the Hood components.

Inner part:

¬ Now got o extract the mid suface for inner part.

¬ This extract midsurface for inner part.

¬ This is symetry components, so delete half portion.

Extracting the mid surface other parts:

Outer part mid surface :

Hinge part midsurface:

Latch part midsurface:

Meshing :

¬ Now going to mesh the components one by one .

¬ Start meshing closed area less free edged.

¬ Keep good mesh flow and less tria element.

¬ Take target element value as 5mm.

Inner part:

Outer part:

¬  Same procedure to the remaining parts.

 

Reflect:

¬ Then now use reflect option to symmetry the remaing half portion.

¬ Go to Tools - refelect - select element - displayed and take duplicate it.

¬ Then choose the N1 and N2 point where you want to reflect.

 

 

 ¬ join the two syemtry portion

¬ Go to tools - edges -window select- two joining area.

¬ select prev eqiv and select equivlance.

¬ Reflected parts are joined.

Mesh Result: 

¬ In this clearing the quality issues.

¬ complete the mesh good or not depends upon quality issue as given in question.

¬ Clear all the quality errors .

¬ Using the 2D - quality index option.

 Final components:

 

Conclusion:

¬ Learn to midsurface extraction and geometry clean up.

¬ Learn to split the area and meshing.

¬ learn to clear quality issues.

¬ Learn to Assign the geometry.