Challenge

Making connection on the Rear Door Assembly by using ANSA Pre-processor

AIM:

The main objective of the challenge is the given Door assembly has to been connected as per the requirements.

COMPONENTS:

The Main components present in Door assembly is,

PROCEDURE:

Open the latest version of ANSA software in your system.
Open the given cad/Nastran deck file.
Assign PID’s for every single component.
Identify the bolt connection areas, and using Nastran deck element RBE2-Many nodes by the way of selecting nodes as loops.
The door handle will be connected separately as RBE2 – many nodes and then master nodes are connected by RBE2 – two nodes and assign the mass as 100g through CONM2-nodes and the mass should be entered in Tonnes.
Overlapping parts should as connected as spotweld.
For the Hinge, the DOF should release at Z-axis, DOF – 12345 only.
For the windows, we use weatherstrip as the connection for smooth performance.

TYPES OF CONNECTION:

GIVEN MODEL:

The Door connection was given as a single property type.

Assign the PID's for every single part.

Create the bolt connection by using the manual method.

Identify the connection, where the bolt has to be made.
Create the Cog at any one of the part centers.
Convert the point into the bolt through the convert option in the Assembly tab.
By using the connection manager from the Assembly tab, input the required details like P1 P2 & P3 as per the below image.
Input the search dist. as 10 for the bolt connection.

Create the stem of the bolt by connecting the two master nodes of both RBE2 connections.
RBE2 > Two nodes > select both master nodes > Release the DOF from the z-axis of Rotation.

Door handle connection.

The door handle, which needs two rigid support from two sides.
By using the RBE2 method from the NASTRAN deck, select the nodes by using the loops method for instant selection. Don't forget the loop is not used in every area.
After creating the slave and master nodes, input the mass at the center of the handle by using the CONM2 > node method.
Put the mass of 100g in tonnes in the M tab.

Spotweld Connection:

These types of connections are used in overlapped areas without any proper holes to make.
Create a COG point at the place where the welding has to occur.
Convert the 3D point as the spotweld point through the Convert option in the Assembly tab.
Now create the Connection by using the connection manager in the assembly tab.

Window slider connection:

The slider is connected to the window glass for up/down movement.
Add the surface by using MV free in the elements tab and mesh the entity by applying 9 as the average length.
By using the RBE2 method, add the connection between the mirror and the slider.

Weathershield connection:

Create the curve by using the Feat2curve option in the element tab.
After creating, Convert the curve into the spotline in the assembly tab.
After converting, open the connection manager in the assembly tab, select the spot line.

Modify all the bushes on the same cord as zero, which makes the alignment of the bushes a neat look.
Change, the vector into the cord as orient.
Input CID as zero.

The alignment looked like the below image.

CONCLUSION:

After all the connection was made as per the requirements and areas, the given Rear door looked like the below figure.

Learning Outcome:

Google Drive Link:

Ship work like this
in your own course.