Week 6 - Creating connection for Rear door

Creating Connections of a Rear Left Side Door in Nastran Deck by Using ANSA

OBJECTIVE = The main objective of this project is to connect the FE model of the Rear Left Side Door of a car in NASTRAN deck for NVH Analysis.

PROCEDURE =

• Import Cad Geometry = File - Open - Select Geometry.
• The given CAD Geometry imported in ANSA workbench and orientation checked.
• Image 1. Imported CAD Model (Rear Side Door)
• PID Creation: Seperate Part IDs Created for all Individual parts.
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• Image 2: PID Creation
• Seperate PID Created for Each part.
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• Image 3: PID Creation 2
• Connections: To create Connections Topo - Curves - Cons2Curve is used to create the curves from Cons.
• Image 4: Creation of Curves
• Then, Assembly - Convert - Curves - Seam Line is used to convert curves to seam line connections.
• Image 5: Modal Browser
• Then, Assembly - Connection's tab used to define the RBE2 - Many Nodes.
• Image 6: Two Nodes Connections
• RBE2 - Two Nodes used to create Bolt Connections from NASTRAN Deck Element - RBE2 nodes.
• Image 7: Rigid Connections
• Image 8: RBE2 Connections
• Overlap - Shell used as a FE representation type.
• Image 9: Door Handle Connection
• Spot Weld Connections = Topo - Points - On Cog - Select Quad Element.
• Image 10: Spot Weld Connections
• RBE3 - Hexa - RBE3 connections defined by the connection manager followed by the creating new Psolid ID.
• Overlap Shell Connections = To create Connections Topo - Curves - Cons2Curve is used to create the curves from Cons.
• Image 11: Overlap Shell Connections.
• Image 12: Seam Weld Connections
• Then, Assembly - Convert - Curves - Seam Line is used to convert curves to seam line connections.
• Image 13: Seam Weld Connections 2
• CBUSH Connection: Mesh - Perimeters - Feat2Curve - To Convert Curves.
• Image 14: CBUSH Connections Glass 1
• Image 15: CBUSH Connections Glass 2
• Image 16: PBUSH ID Creation
• Image 17: CBUSH Connections 2
• RESULTS = The appropriate connections are provided for Rear Left Side Door by using NASTRAN - NVH Analysis.
• CONCLUSION = From this challenge I learned about Rear Left Side Door CAD model import, New PID Creation for each Individual parts, Creating connections such as RBE3 - CBUSH - RBE3, OVERLAP SHELL, RBE3 - HEXA - RBE3, Rigid Connections, Bolt Connections, Seam line Connections, Spot Weld Connections etc.