Week 6

AIM : To make the connections of the front door is shown in details and the diiferent types of connection technique along different 1 D elements.

SOFTWARE REQUIRED : ANSA V 19.1.2 (V means version).

ABOUT ANSA : Ansa is developed by beta cae systems. ansa is a preprocessor which is used for meshing a component. ansa menas automatic net generation for structural analysis, here net generation menas meshing.

PHASES OF ANSA:

1) Import a cad geometry.

2) Geometry cleanup

3) Skin/mid surface generation.

4) Shell or solid meshing.

5) Elementary quality check up

6) Mesh improvement

7) Apply load and boundary comnditions

8) Export input file

If we observe the above image it is in nastran.it mainly about the connections stage.

here we observe to find the vehicle creates any noise , vibration, harshness.if any vehicle these technical aspects is very important because a vehicle undergo either noise or vibration or two the vehicle is not stable.controlling is also difficult.

they are few connections in nastron.

1) RBE2 many nodes.

2) RBE2 two nodes.

below figure represents the rbe2 two node connections.

3) C BUSH :

The c bush is the connection for movable window glass and a glass door. if we observe we can find that the weather bead or strip is placed at the end of glass window.

below figure represents the c bush connection.

The degree of freedom is also a very important for doing / making the connections for door handle.

The door moves in z direction the degree of freedom for door is 12345.

for making the c bush connection we have to select the end part of glass and create a curve on it and change it as a spot weld.

and then go to the connections and select that curve.

and then again click the middle click.

we have to select the connection type and give the search distance and p1,p2 ( p1,p2,..p4 indicates the surface selection).

the below figure indicates the search distance .

selection of p bush id.

RESULT: I have done the connections where is required and which one is required for what, how much load is sustained for door handle.we have to assign the load at door handle is 1e-4.

below figure represents the overall component with its connections.