Assignment 1-2D Meshing Challenge

AIM: 2D Meshing and Assigning Thickness
OBJECTIVES: Carrying out the geometry cleanup operation, Midsurface, 2D Meshing, assigning thickness by creating a generic property on the given 3 files.
(1). Practice (Part 1)
(2). Mounting Bracket (Part 2)
(3). Clip Repair (Part 3)

Following Criteria should be followed in all three of the models Creating 2D mesh with target length 5mm, min 3.5mm max 7mm.
>Clean the geometry.
>Extracting midsurface.
>Clean mid surface geometry.
>Ignore holes less than dia 5mm.
>Assigning proper thickness, by creating a generic property.
>There should not be any free edges.

IMPORTANT PROCEDURES REQUIRED TO PERFORM IN ALL ABOVE THREE MODELS:
STEP 1: Duplicate the parent surface model to another collector to keep the parent surface safe.

STEP 2: Organise the parent surface to another component collector and duplicate the surface and move
*Tool>Organise>surface>set current component>select dest component>Duplicate>move.

STEP 3: We can see that there are many free edges,unsplit surfaces and surfaces are missing, to fix that we can go through following commands of quick edit
panel
*F11>toggle edges>select lines
*F11>replace points>points>retain
*F11>surface delete
*Geom>surfaces>ruled>select line list 1>select line list 2>create
*Geom>surface edit>trim with surface>select surface 1>select surface 2>trim both
*F2>surface>select surface>delete entity

STEP 4:We can ignore dia less than 5mm as per given question
*F11>unsplit surface>select all holes

STEP 5: Toggle lines of geometry so that elements will not fail for minimum element length.
*F11>toggle edges>select lines

STEP 6: Measuring thickness of the component by projecting nodes on two opposite surface
*Geom>temp node>nodes>select surface>add
*Tool>project>to surface>nodes>select node>duplicate>select surface>project
*Geom>distance(F4)>two node>select nodeN1>select node N2

STEP 7: Extracting the mid surface of the component, this component is less complex and we can go through auto midsurface command.
*Geom>midsurface>auto mid surface>surface>displayed>extract

STEP 8: 2D mesh on the component
*2D>auto mesh>surface>select surface>element size(5mm)>mesh type(mixed)>mesh

STEP 9: Correcting Failed elements after setting up 2D element criteria file setting *Menu Bar>preferences>Criteria file setting

STEP 10: Assigning thickness to elements by creating property.
-Right click on graphic area of model tree>create>properties
-Rename that particular collector with same name as mid surface and thickness
-Select component>mid surface>right click to assign>select property>apply

learnings:

>Projecting nodes and lines to surface.
>Measuring thickness of surfaces.
>Geometry cleanup using a quick edit panel
>2D Meshing
>Setting up criteria file
>Fixing failed elements using a quality index panel and remesh.
>Projecting element’s nodes to feature surfaces.
>Finding free edges of elements and fixing it
>Assigning thickness by property.