Meshing a interior plastic component of a side door

Objective:

Mesh the interior plastic component of the side door of a passenger vehicle with given quality criteria. After meshing assign thickness and check if the geometry is captured properly.

1. Take the mid-surface manually, mesh the geometry with quality.

2. Take auto mid-surface and mesh the geometry with quality.

3. Use the combination of both auto mid-surface and manually mid-surface and then mesh the geometry with quality.

Procedure:

1. Clean the geometric errors:

* Open the plastic component of the side door into ansa.

* Check for topological errors for the given model through geometry checkup in the utility window or turn off the shadow mode(use ctrl+shift to turnoff shadow mode temporarly) to see single cons and triple cons(which tends to errors).

* Use NOT, Universal delete, coons, fitted, HOT POINTS (by spilting the surfaces), PROJECT, INTERSECT,CUT, PROJ CUT commands to clear all the topological errors.

2. Assign the mesh and quality parameters:

* Assign the mesh and quality parameters as follows

Target Element Length-4mm

S.N	Quality Criteria	Value
1	Aspect Ratio	3
2	Skewness	45
3	Warping	15
4	Taper	0.5
5	Min. Length	2mm
6	Max. Length	6mm
7	Min angle Quad	45
8	Max angle Quad	135
9	Min angle Tria	30
10	Max angle Tria	110
10	Tria %	15

3. Extract the mid surface:

* Extract the mid surface of the entire component by following any of the three steps:

a) Using mid surface:

* Follo.w the path FACES-> MIDSURFACE-> CASTING and select the entire model.

* By doing so the entire model is mid skinned and meshed in the FE mode but formed FE has abrupt surfaces with less time.

* Check the mid surface formed by following the path

FACES->MIDSURFACE->CHECK MIDDLE SURFACE

* To apply appropriate PID\'s and thickness to the model use following path

FACE->MIDSURFACE-> CALCULATE THICKNESS

b) Using offset and middle:

* Using offset and middle options midsurface is extracted. The formed surfaces are accurate and extracting the surfaces is more time.

* Mesh the entire model using BEST option in MESH GENERATION.

c) Mixing above both option:

* As the mesh generated using autogen mode is in FE mode, follow the path to change the mesh FE into Geometry.MESH->ELEMENTS-> To SURFACE.

* Now abrupt surfaces are changed by using OFFSET option and using EXTEND and INTERSECT join the surfaces.

4. Correct geometric errors:

* Using RECONSTRUCT, SWAP, SPLIT, MVSURF, PASTE options correct all the geometric errors.

to

CONCLUSION:

The interior plastic component of the side door of a passenger vehicle with given quality criteria is meshed.

LINK:

https://drive.google.com/file/d/1eFJMFNINq9Vkhl1CGeVHSDi0XG0yESzD/view?usp=sharing