Week 3 - 2D meshing for sheet metal

Objectives:- For the given Hood model, Take the mid surface for all the components after checking the geometrical errors and mesh the mid surface with the given element Quality criteria.

Procedure:-

→ Import model

→ open the given model in ANSA, model consist of 4 components of different thickness.

→ After importing the model give the length as 1 unit(mesh mode⮑perimeter⮑length).

→ Then go to geometry check for all components and fix all errors using auto-fix methods.

→ After checking geometry, extract mid surface using the automidsurface skinn option.

→ After mid-surface extraction and clean up goes to mesh mode and set the length perimeter as 5 units.

→ For Hing, the outer panel and inner panel mesh the half part and transform it to the other part(only symmetry components can be transformed).

→ Assign the mesh parameter and quality criteria to mesh the components.

NOTE- For the hemming portion draw a line on the middle part and suppress the other two lines.

→ Trias can be resolved by either reconstruction or by the split method.(if trias are long away from each other paste option can be used to resolve the issue).

→ Mark the hot points so that no. of nodes gets fixed.

Result:-

After applying the drawn shell as a solid

Learning outcomes:-

→ Basics tools of ANSA software.

→ Geometry checks and fixes errors.

→ Mid surface extraction using skin option.

→ Based on the given quality criteria mesh the component with less concentration of trias.