Week 6 - Creating connection for Rear door.

CONNECTIONS REPRESENTATIONS OF REAR DOOR OBJECTIVE:- To perform the connections of the rear door of the car with different connections .

CONNECTIONS REPRESENTATIONS OF REAR DOOR.

OBJECTIVE:- To perform the connections of the rear door of the car with different connections techniques.

PROCEDURE:-

• Input the files rear door to ANSA

• Set seperate PID's for different spot welding parts

for holes there bolt is used,give a COG points to the holes in parts that need to be connected.convert the COG point to a bolt.use the connection manager and connect the parts by selecting BOLT FEATURE.

NASTRAN MODULE>ELEMENTS>RBE2>MANY NODES can be used to create a custer element for bolt holes when there are no different properties defined to parts.

create ZONE CUT for bolt holes which is not connected to many parts ,create RBE2 connections along with the washer element around the hole.

for the door hinge connections create RBE2 cluster elements in order to make the movement of rear door towards one directons delete the six degree of freedom under NASTRAN>ELEMENT>INFO.

For connections involved in SPOT WELDING

• select the nodes and convert it into spot weld point
• RBE3-HEXA-RBE3 is the representation for spot welding.

handle connections are made using RBE2 elements along with CONMi>CONM2>NODES in order to give mass representation of the handle as tonnes.

connections for windows

• create curve around the perimeter of the window.
• transform them into spot lines.
• select the lines after opening CONNECTIONS MANAGER RBE3-CBUSH-RBE3 is used to represent Window Connections because windows are connected with soft bending to absorb shocks.

• Assign parts for connections of CBUSH elements.
• Repeat this for another window.
• change the co-ordinate to 0 in CBush Properties so it gets globally aligned towards one direction.

CONCLUSION:

• Rigid body element are connected.
• Spot welding component connections are made.
• CBUSH element are represented
• Mass of Handle is represented
• Degree of freedom assigned for hinges.