Meshing of HOOD

Objective: To mesh the given component as per the data provided.

Procedure:

1. First Imported the model file using the Import Geometry option under the Import.

2. Then deleted the solid part of the model using the Delete >Solids.

3. Now first selected one of the component of the model to work on by hiding all other component.

4. Created mid surface for the selected component using the mid-surface command in the Geometry tool menu.

5. Similarly created mid surfaces for the other components as well.

• Component 2(Outer Body)

Generated Mid-surface:

• Component 3(Hinges)

Generated Mid-surface:

• Component 4(Latch)

Generated Mid-surface:

6. Now used autocleanup to clean up the created mid surfaces geometry.

• Component 1(Inner Body)

• Component 2(Outer Body)

• Component 3(Hinges)

• Component 4(Latch)

7. Also created washer splits to the remaining holes/open surfaces of the mid surfaces using the quick edit option.

8. Now created mesh over the generated mid surfaces keeping the element size as 5mm and element type as mixed.

• Component 1(Inner Body)

• Component 2(Outer Body)

• Component 3(Hinges)

• Component 4(Latch)

9. Now edited the Quality criteria’s for the model using the quality index option under 2D tool menu to set them as required.

10. After this we can see the elements failing for the set criteria’s.

11. To cleanup/correct mesh elements failing for set Quality criteria’s:

• First selected the Inner component of the model to work on.
• By using the check element tool we observed the elements failing for the assigned values of the criteria’s and using Quality index to give list of element violating Quality Criteria Threshholds.

• After this used combination of automesh, smooth and Qualityindex to cleanup the element failing the criteria’s.

Result:

Similarly performed for the other components as well.

• 2^ndComponent

Result:

As shown in the image only element failing for min. size are left and as they are at fillet section it is difficult to rectify them. So i left it as it is.

• 3^rdComponent

Result:

• 4^thComponent

Result:

Conclusion: In this challenge we completed following tasks:

• Created mid surfaces for the components of model separately.
• Generating the mesh elements as per the assigned quality criteria’s.
• Learnt the use of various quality criteria’s in a model.
• Also learnt the use of various mesh cleanup tools i.e. smooth, Qualityindex.

Google Drive Link for the Hood file:

https://drive.google.com/drive/folders/1S7nsIRbStdQfGsa8J9SU4wOyQmGkn5Ym