DEPLOYING CONNECTION IN HYPERMESH

AIM:-To perform connection for the given component

PROCEDURE:-

• First, we need to import the geometry
• Then after we need to geometry cleanup
• Then after we need to mesh the part
• Then after we need to give connections

GEOMETRY CLEANUP

• Import the geometry into hypermesh optistruct
• To import the geometry we need to go import and select to import the cad
• Then select format the file and select the file and select the file to import

• We need to clean the geometry for every component
• But in this model, all component does not have geometrical issues

• The components are extracted mid components
• So no need to take the mid surface
• Directly we can go to meshing
• To mesh the part we need to go to 2D and select the auto mesh
• If any quality issues are there we must clear them

• Here they did not specify so we can any element size, my choice is 5mM
• Select the surface and mesh them
• By altering the nodes we can get the perfect mesh

• The major option for doing meshing is to perform the mesh if any flow issue is there we need to mesh

• For quality issues, we use the quality index

• PLACE NODE to move the nodes freely to reduce the quality
• Element optimizer will optimize the element quality
• Smooth will smooth the mesh flow and adjust concerning the min and max size
• Split edges are used to split the edge of the quads
• Drag tria which used to drag the trias from one point to another point
• combine trias it will combine two tria in a quad
• Parts that are been meshed

• Mesh is completed for all parts
• We need to perform connections

1. Right_Rail_2 & Front_truss_1:- Seam-Quad(angled+capped+L)

• For making connections we need to go to weld and select the connectors

• As per the given requirement, we need to make a seam weld with the respective type
• We need to go to connectors and select the seam option and select the type as seam-quad(angled+capped+L)

• If the nodes are in green then the connection is be realized

2. Left_Rail_2 & Front_truss_1:- Quad elements

• To perform this connection we need to goto seam and select the type as quad

• If the nodes are in green then the connection is be realized

3. Front_truss_2, Front_truss_1 & Right_Rail_1:- Spot weld with 3 Layers and 5 mm Diameter

• To perform this connection we need to go to 1D Select the connectors and select the spot
• In place of a number, layers specify them as 3
• Tolerance as 50 is search distance to deploy connections
• Types as weld

4. Front_truss_2, Front_truss_1 & Left_Rail_1:- Hexa (Adhesive)

• To deploy this connection we need to go seam and select the type as Hexa adhesive

5. Rear_truss_2 & Right_Rail_2 & Rear_truss_2 & Left_Rail_2:- Bolt Connector

• To perform this connection we need to go to connectors and select connections as a bolt
• Then we need to give diameter as five and select the nodes and select the component
• Give the spacing as 5 as per element size

• Make sure that we must select it to create a hole if the hole is not present

7. Right_Rail_1 & Right_Rail_2:- Spot-weld with Rigid Elements

• To perform this connection we need to select spot in connectors
• And select the type as rigid and select the nodes and select the components and click on create

8. Left_Rail_1 & Left_Rail_2:- Spot-weld with Spring Elements

• To perform this connection we need to select spot in connectors
• And select the type as rigid and select the nodes and select the components and click on create

9. Rest all the component left Join them with suitable connectors

• For all remaining connection, I had to give a spot with rigds
• Go to connections select the spot and select the rigids as type
• Then select the nodes and select the components and create connections

CONCLUSION:-

• Understood how to perform seam weld connections
• Understood how to deploy spot weld and bolt connections
• Understood how to perform bolt connections
• Understood how mesh must redefine while connection deployed