Challenge

Week 9-Challenge

CONNECTIONS REPRESENTSTION OF FRAME ASSEMBLY

OBJECTIVES :

To mesh the frame assembly and make connection representation at specifed parts.

CONNECTIONS :

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

2. Left_Rail_2 & Front_truss_1:- Quad elements

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

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

5. Rear_truss_2 & Right_Rail_2:- Bolt Connector

6. Rear_truss_2 & Left_Rail_2:- Bolt Connector

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

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

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

PROCEDURE :

A. Meshing :

1. Import the frame_assembly_welding.hm to hypermesh under opistruct profile.

2. 2D > Automesh the component with 5mm as target elemet size as the midsurface is available.

B. Connections :

1. SEAM WELD CONNECTION

Hide all components except right rail 2 and front truss 1.
1D > connectors > seam type as seam-quad(angled+cappled+L)
Select the node list on front truss and components to connect, with remesh option.
Increase tolerance value to 10 and Click create and remesh the area for proper mesh flow.

2. QUAD ELEMETS

Hide all components except left rail 2 and front truss 1.
1D > Connectors > Seam and type as quads.
Create a property for quad elements and assign.
Select the node list on front truss and components to connect, with remesh option.
Increase tolerance value to 10 and Click create and remesh the area for proper mesh flow.

3. SPOT WELD

Hide all components except Front truss 2 , Front truss 1 and right rail 1.
1D > connectors > spot type as weld , diameter as 5mm.
Select the nodes to spot weld and components to connect with 3 layers.
Create a property for spot weld and assign. Click create with tolerance 20.

4. HEXA ADHESIVE CONNECTOR

Hide all components except Front_truss_2, Front_truss_1 & Left_Rail_1 .
1D > connectors > seam type as Hexa (adhesive).
Increase tolerance to 50 , select nodes in one component and select components to connect. Create.

5. BOLT CONNECTOR

6. Similar steps for BOLT connectors repeat for Rear_truss_2 & Left_Rail_2.

7. SPOT WELD WITH RIGIDS

Hide allo components except Right_Rail_1 & Right_Rail_2.
1D > Connectors > spot type as rigids select nodes to connect. Assign property.
Select components to connect after increasing tolerance to 50 and create.

8. SPOT WELD WITH SPRINGS

Hide all components except Left_Rail_1 & Left_Rail_2.
1D > Connectors > spot type as springs select nodes to connect. Assign property
Select components to connect after increasing tolerance to 50 and create.

9. Remaining components are connected using seam weld, spot weld by following above steps.

FIG : CONNECTIONS REPRESENTATION OF FRAME ASSEMBLY

CONCLUSION :

1. The Frame assembly is meshed.

2. The connections are represented as specified.

3. remaining components of frame assembly are connected by means of seam and spot welds.

LINK : https://drive.google.com/file/d/1qDDHEuSTQpSvSE1DVYynx_FZSDNw_Q3h/view?usp=sharing

Ship work like this
in your own course.