Challenge

Week 9-Creation of 1D Connectors Challenge

KKarthik Kannan31 Jul 2022

AIM:

To extract midsurface and perform 2D meshing for the given components based on the given quality criteria and then perform connections based on the given criteria.

PROCEDURE:

Import the given geometry and then perform the geometrical check and prepare the geometry for meshing.
Now go to preferences>criteria file setting>enter the required criteria>click apply>click ok.
Now go to preferences>Parameters file setting>enter the required parameter values>click apply and click ok.
Now go to automesh select the component by select the surface and check align and size check box. Enter the element size as 5 and mesh type as fixed.
Similarly mesh all the compoenets and use cleanup tools to clear the elements failed for quality criteria.
Once you achieve zero percentage failed element then your mesh is perfect and now connection are need to be established between the components.
It is given that between Right rail 2 and front truss 1 we need to establish Seam-Quad(angled+capped+L). For that go to 2D connectors>seam>Select the type as eam-Quad(angled+capped+L)>select remesh> enter the tolerence value as 15> enter the spacing value as target element length i.e., 5>Now select the component both source and target component.
Now show only front truss 1 and left rail 2 and hide remaining component. Go to 2D>connectors>seam>select type as quads>select the components>enter spacing value as target element length '5'>enter the tolerence value as 15>change quad transition to remesh to avoid element failure.
For performing spot weld, first isolate the components that you need to perform the spot weld. Now go to 2D>connectors>spot>Select type as weld>enter the tolerence value as 15>enter the diameter as 5mm as given>select 2layer>select the components>instead of adjust realization select adjustmesh and select remesh>click create.
For hexa(adhesives) go to 2D>connectors>seam>select type as hexa(adhesives)>enter spacing as target element length>enter the tolerence value as 15>select the components>click create.
For bolt connectors go to 2D>connectors>bolt>Select the nodes>select type as bolt(general)>select the components>select the tolerence value as 15>instead of "considering existing hole only" select "create hole, if none"> select the number of layer>click create.
For creating spot weld with rigid elements go to 2D>connectors>spot>select type as rigid>select the components>enter the tolerence value>enter the weld diameter>instead of "adjust realization" select "adjust remesh"> click create.
For holes present in the component perform rbe2 connection before that we need to create the COG point for the hole for that go to geometry>nodes>arc centre>select the circle>click create.
Now go to 1D>rigids>select the COG point as independent node>select the nodes in the circle as dependent nodes>check all the degrees of freedom inorder to create rigid connection>click create.