Meshing of Floor Panel Project

Objective:

To entirely mesh the specified floor panel according to the specified quality criteria without any elemental failure.

Given Quality Criteria is

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:

Imported model

Figure. 1 shows the imported Floor Panel model in ANSA

Figure. 1. Imported Floor Panel model

Geometry Clean-up

The next essential stage is checking the model's geometry. This will assist us in eliminating all surface errors, undesirable Cons, as well as any disruptions made to the model. this is done by

Command: Tools+Checks + Geometry. 

For the Checks manager dialog box as shown in Figure. 2. Total Errors can be cleared automatically by 

Command: Right click + Fix.

In the Checks manager dialog box. Errors can be cleared manually by 

Command: Faces+Delete / New, Command: Faces+ Topo, Command: Faces+ Orient.

Figure. 2. Checks manager dialog box

Figure. 3. shows the Cleaned Geometry  of the model using Checks manager dialog box.

Figure. 3. Checks manager dialog box woth zero errors.

Mid – Surface Extraction

Manual mid surfaces are retrieved by selecting the faces of each component using the offset option and specifying the distance as half of the thickness or it is extracted using skin midsurface by

Command: Midsurface+ Skin.

as shown in Figure. 4. All the Mid – Surfaces are  again checked for errors.

Figure. 4. Midsurface.

Quality Criteria

Figure. 5. shows the Quality Criteria for meshing

Figure. 4. Quality Criteria.

Meshing

Before meshing choose

Command: Perimeters + Length

then choose the entire component and give the target length of the mesh value as 5. Mesh is generated by 

Command: Mesh Generation + Best Mesh 

then choose the entire component for generation as shown in Figure. 5.

Figure. 5. Generated Mesh Elements.

To produce clean mesh flow with acceptable quality parameters manually with

Command: Elements + Split , Command: Elements + Swap, Command: Grids + Paste, Command: Elements + Join

For element editing and

Command: Shell mesh + Reconstruct and Command: Shell mesh + Smooth 

For reconstructing and smooting the mesh and

Command: Shell mesh + Refine

For refining the mesh. the final mesh element is shown in Figure 6.

Figure. 6. Mesh Elements with Quality Criteria.

CONCLUSION :

The given Floor Panel Sheet Metal component successfully meshed and passed the geometrical errors with the given element Quality criteria.