Week - 8 - Morphing

AIM: To do morphing on the floor panel and hand rest model.

MORPHING:

Morphing is the technique used to modify the shape of the existing component without entering the numerical value.

The main advantage of morphing is it can be done not only on the CAD model but also on the FE model.

APPLICATIONS: 1) Morphing is widely is used in automotive industries whenever we need to do modifications in the existing car model. It saves time and cost.

2) Morphing also helps the design engineers in case of converting an existing hatchback model to a sedan or vice-versa. In that case front portion of the car remains same only rear portion is modified as per the requirement using different morph tools. Examples of morphing are Honda Brio(hatchback) and Honda amaze(sedan), which share similar design until b-pillar. Another example is Tata tigor (sedan) and Tata Tiago(hatchback).

MODEL 1: FLOOR PANEL.

PROCEDURE:

1) Open CAD model in ANSA.

2) Perform Topo and give the perimeter length as 1.

TOPO→FACES→TOPO→SELECT THE COMPONENT→CONFIRM

MESH→PERIMETER→LENGTH

Geometry Clean up

MORPHING OPERATION

Now we will perform box morphing. Box morphing is also known as ortho or free free morphing method.

In the above image we have to increase the height of the feature we can do it with reference of global coordinate or local coordinate. Yellow line represents local coordinate axis.

Step to increase the height of the feature:

Create a morph box.

MORPH→BOXES→NEW→ORTHO→GEOMETRY→SELECT THE FEATURE.

Now with the help of move option we will increase the height of the feature.

MORPH→BOX MORPHING→MOVE→NODES

Now, we will try to modify the shape of the entire floor panel component.

After morphing

MODEL 2: HAND REST MODEL

PROCEDURE:

1) Open CAD model in ANSA.

Geometry clean up and morphing operations are done to the model.

Similarly we perform the operation as the above morphed model, but then to increase only height we uncheck local z-axis to increase the height of the component.

After morphing

Hence, the height of the dog house and rib has been done.

LEARNING OUTCOMES:

1) What is morphing and its application.

2) Advantage of morphing.

3) Basic tools of morphing.

Thanks,

Vishal