Project 1 - 2D meshing on the instrumental Panel

Project 1: 2D MESHING ON THE CARS INSTRUMENTAL PANEL

Objective: The Main Objective of this Project 1 is to Mesh the Instrumental Panel as per the given Quality Criteria and Assign the Thickness.

Quality Criteria: Quality Criteria shown in table no. 1

Table 1. Quality Criteria Table

Sr. No.	Quality Criteria	Value
1.	Target/Average Length	4
2.	Minimum Length	2
3.	Maximum Length	6
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
12.	Tria Percentage	15

Procedure:

• Import Cad Geometry = File - Open - Select Geometry.
• The given CAD Geometry imported in ANSA workbench and orientation checked.
• Image 1: Imported CAD Model (Instrument Panel)
• Geometry Clean-UP = Tools - Checks - Geometry. Errors are resolved automatically by using fix command in geometry.
• Image 2: Before Geometry Clean-up
• Topo - Faces - Topo Command used to clear issues with the orientation
• All geometrical errors are cleared using auto FIX option.
• Image 3: After Geometry Clean-up
• Thickness Measurement : Thickness measured using Utilities - Measure. As this is a Plastic Component (Instrumental Panel) It has a same thickness throughout the model as shown in Image 4.
• Image 4: Thickness Measurements
• PID Creation: Separate Property ID Created for all different part IDs.
• Image 5: PID Creation
• Mid Surface Generation:
• The resolution of CONS improved using Mesh - Length - Perimeters - Macros.
• Topo - Faces - Offset, Topo - Faces - Middle used to find the mid surface.
• Also, Topo - Faces - New / Cut, Topo - Cons - Project, Transform - Copy - Rotate Commands used to find the mid surface.
• Image 6: Mid Surface
• Mesh Generation : The perimeter elemental length is set using Mesh - Perimeter - Length, Mesh - Perimeter - Macro option.
• Image 7: Quality Criteria - Presentation Parameters
• The Quality Criteria Shown in table no. 1 are applied to the model using utilities - Quality Criteria
• Mesh Parameters are applied using Utilities - Mesh Parameters.
• Image 8: Mesh Parameters
• F11 Function Key is a shortcut for Quality Criteria - Presentation Parameters.
• Mesh is done using Mesh - Mesh Generation - Spot Mesh.
• Image 9: Mesh Generated
• For better results of mesh Mesh - Shell Mesh - Reconstruction used.
• Image 10: Mesh Generated as per Quality Criteria
• Mesh Improvement is done using Reconstruct, Smooth, Split, Swap, Paste, Cut, Join etc under Mesh tab.
• The surfaces are split to get better mesh flow using Mesh -Macros -Cut.
• Image 11: Draw Shell as a Solid Command
• Image 12: Thickness Assign to the Meshed Component

• Result : The given Instrumental Panel is meshed as per the given quality criteria. The thickness assigned to the meshed Instrument Panel.
• Conclusion : From this challenge I learned about Instrument Panel CAD model import, Geometry clean-up, New PID creation, Mid surface extraction, setting up Quality Criteria, Mesh generation, Reconstruction of mesh using quality criteria, Assigning Thickness to Meshed Model.