Create connector and Attach the various parts of the given model

Create connector and Attach the various parts of the given model

Objective: To attach the parts in the given model with various connectors.

Connectors: connectors are Geometric entities that define connections between other entities.they are used for:

1. Used for welding, bolts, adhesives, etc.
   >Link geometry or FE entities
   >Can be “realized” into FE representations of welds, etc. for any supported solver
   >rigids, CWELDs, MAT100s, ACMs, etc
2. Connectors allow for easy and rapid:
   >Creation of FE welds, bolts, adhesives, etc.
   >interactively or from:
   >XML file
   > MCF (master connectors file ) >Spot welds only
3. Switching between different FE configurations ofwelds, bolts, adhesives, etc.
   >Part swapping and reconnection
   >Replacement by names or IDs.

Procedure:

We need to import the model into hypermesh and check the model free from topological errors.We need to mesh the parts before connect them using connectors.So we mesh the parts with 5mm as target length and element shape as quads.Now we able to connect the components.

1. At first we connect the right rail 2 and front truss 1 using Seam-Quad(angled+capped+L) connector. for making this connection we go to 2dpanel>connectors>seam>Seam-Quad(angled+capped+L)>select the nodes on right rail 2>give spacing>select the surfaces>give tolerance as 10mm>hit create.Then a connector is created if it is in green colour then it is realized if it is in red it is not realized.
2. Next is to connect the left rail 2 and front truss 1 using Quad elements connector. for making this connection we go to 2d mesh pannel>connectors>seam>quads>select the nodes>select the surfaces>give tolerance>hit create.Now the connector is created between left rail 2 and front truss 1.
3. Next is to connect the front truss 2, front truss 1 and right rail 1 using Spot weld with 3 Layers and 5 mm Diameter.for making this connection 2dmesh pannel>connectors>spot>weld>select the nodes>select the components>select no of layers as 3>set tolerance to 10>set diameter to 5mm>hit create. the connector of required type is created.
4. Next is to connect the Front_truss_2, Front_truss_1 & Left_Rail_1 using Hexa (Adhesive). for making this type of connection 2d mesh pannel>connectors>seam>hexa adhessive>select the nodes>select the components>set tolerance>set no of strips and coats>hit create. the connector of required type is created.
5. Next is to connect the Rear_truss_2 & Right_Rail_2 using bolt connectors.for making this type of connection 2d mesh pannel>connectors>bolt(general)>set the tolerance>set create hole if none>hit create.the connector of required type is created.the images for some of the connectors are:
6. Next is to connect the Rear_truss_2 & Left_Rail_2 using bolt connectors.for making this type of connection 2d mesh pannel>connectors>bolt(general)>set the tolerance>set create hole if none>hit create.the connector of required type is created.
7. Next is to connect the Right_Rail_1 & Right_Rail_2 using Spot-weld with Rigid Elements.for making this type of connection 2d mesh pannel>connectors>spot>set the type as rigid>select the nodes>select the components>set tolerance>hit create.the connector of required type is created.
8. Next is to connect the Left_Rail_1 & Left_Rail_2 using Spot-weld with Spring Elements.for making this type of connection 2d mesh pannel>connectors>spot>spring>select the nodes>select components>set tolerance>hit create.the connector of required type is created.
9. Rest all the component left Join them with suitable connectors like rbe2 links or using bolt connectors or spring etc.