Week 6-Meshing of Hood Challenge

Aim-Mesh the compoments of the Hood like inner compoment of the Hood,outher compoment of the Hood anf latch and hinge compoment of the Hood and foolow thw quality criteria of Mesh as per given data,

Objective-1.Import the geometry file and checking for the solid surface and deleting the surface .

2.Extract the mid surafce of each compoment seperately and check the geometrical errors .

3.Meshing of the indivual compoment one by one and following the Quality creetia.

Procedure-

1.The geometry file is imported in the hypermesh.

2.After importing the geometry we need to check for the solid surafce for that we need to be on the shadow mode. and delete the solid surface.

fig-soild surface of the hood which would be deleted

3.After the deleting the solid surface we need to extract the mid surface.(Geo>midsurface>automid surface>surf).and we should ensue that resulating mid surface in the current compoment.

fig2- procedure for exteraction of the mid surface

fig3-extracted mid surface of the latch

4.After extracting the mid surafce we are to going to geometry clean up we check the areas where the mesh fails for the quality crriteria and acccording that we make changes in the geometry.

fig-geomeytry cleanup of the lines which results in failure of the elements.

5.After geometry clean up we going to start the meshing for meshing we have go to 2d>automesh here we are meshing with mixed type of elemnts so that we can aviod the rotaing quads and for the better mesh flow we split the large aeas in to smaller areas.

fig-5 - spliting of the surface for better mesh flow.

fig6- meshing 0f the compoment

6.During the meshing we got some element failure they are failing for the maximum length,minimum lenhth,wrapage,and the maximum length. the maximum length is solved bry draging tia elemnt ,minimum lenhth is solved by remeshing the elemnts and wrapage is solved by spliting the quad the element in to trias and draging one failed trias.

fig7- After clearing all the quality cretia issues,

7.similar producer is followed for other compoments since the outher compoment and the inner compoment are symmentrical hence we are meshing on one side of the commpoment and we reflect the the elments on the other side.

8.After meshing we check for the duplicate elemnts,free edges and the normals.

fig8-Meshing of ythe inner compoment and satsfying the quality cretreia.

fig9-Meshing of the Hinge and satfying all the quality creteria.

fig 10- Meshing of the ouher compoment and satsfying all quality creteia

Note- Due to excees of node limit the outher part is not reflected.

Learning outcomes

1.Learn how to mesh.

2.learn the rulrs to follow when doing meshing of the compnent.

3.Learn how do the element check.

4.Learn about different Quality criteria.

sa