Week 6 - Creating connection for Rear door

Aim:-

For the given Rear door FE model, need create and apply different PIDs for different components. By using the "Set PID" option from the "TOPO" module, need to perform suitable connections.

Procedure:-

1. Create seperate PID for every component avaialable in the model, using "Set PID" from the TOPO module.

2. Create "Rigid connection" for the all the hole shown in the model using "RBE2" from the "NASTRAN DECK" module.

3. Create a seperate Group for all the connection and save every new connection in that group as a set.

4. For the bolts connection use "RBE2<Many Nodes", and create the connection.

5. In case of connecting tow seperate connections, use "RBE2<2 Nodes", and create the connection.

6. In case of the moving parts, the movable axis (x,y,z) need to be set free using the "info" tab at that connection.

7. Where there is a spot weld, "COG" has to be generated and the "3D point" is need to be converted into "Spot" and the connections need to be done. Connections are done using "RBE-HEXA"mode.

8. In case of the seam weld, curves are generated and converted in "Seam weld". Then the connection is established using "RBE3-CBUSH" mode.

9. For connecting the seam weld for the surfaces which are parallel to each other use "Overlap shell" command.

10. For connecting the seam weld for the surfaces which are perpendicular to each other use "Y-Joint" command.

Learning Outcomes:-

1. I have learned how to create connections for various typer od joints, i.e Seam weld, Spot weld, Rivets, Bolts.

2. I have learned how to how to constraint or free the "Degree of freedom" for translational and rotational motion, wherever required.

3. I have learned what are the master nodes and slave nodes.

Conclusion:-

1. Connection for the given model is established as per the model's requirement.

2. Rotational degree of freedom is also not constraint at the z-axis, for the door hinges.