Morphing

Report on Morphing

Aim: To perform morphing techniques on the given model and its uses in various industries.

Procedure:

1. Download the model from the Skill Lync database to which morphing techniques have to be applied.

2. The model is stitched together using topo command

3. Now the model is check for any geometry errors.

4. Geometry errors are solved either manually or auto fix.

6. The mid surface is extracted using faces offset command and mesh is generated using Batch mesh manager with a target length of 3mm and minimum and a maximum length of 1 and 5mm respectively.

5. To perform morphing on a feature morphing box has to be created. It can be done with new ortho command geometry under Boxes in morphing mode.

6. After the Morphing box has been created using the move command in Box morphing to modify the features as shown in the below figures.

7. In morphing mode features like stamps, fillets, holes can be altered or copied. Like in the figure shown below.

Learning Outcomes:

Box Morphing (Domain Morphing) :

Domain or Box morphing is performed via boxed that is created around a particular part or assembly that the user intends to morph. The movement of the morphing boxes' control points defines the morphing operations on the entities inside the morph box. This type of Morphing can be applied to both FE and Geometry based models.

Direct Morphing

ANSA’s Direct morphing features gives the user the ability to efficiently modify a part locally without having to create Morphing boxes. This method is extremely useful in creating local modification on single parts. Creation of depressions, surface fitting certain FE part features to new target geometry, moving selected features along the contour of a surface, and also the ability to freeze elements during the morphing process are some of the direct morphing abilities.

Parametric Morphing

The desired morphing actions can be saved as parameters that can be accessed in batch mode. Users can enforce desired shape changes by changing the numerical input value for the appropriate parameter. This method of morphing is highly utilized for the coupling of the morphing operations to an external optimizer. The scripting capability can be used in conjunction with ANSA’s parametric morphing functionality to deliver faster DOE models.

Geometry Morphing

ANSA brings to the CAE world it's one – of – a kind’ tool for CAD geometry morphing. This pioneering concept allows the user to utilize the inventory of all the familiar FE morphing functions to perform equivalent operations in a CAD environment on geometric entities.

Applications:

1. In aero-engineering, used in wing design, rotor blade angle, etc.
2. In CFD, such as the design of the outlet pipe in the turbo unit, etc.
3. And various fields such as Marine, powertrain, biomechanics, etc.

Results:

1. Basic morphing techniques have explored and performed on the given practice model.
2. The feature has been modified has been added to the model to explore additional modification techniques in Morphing mode in ANSA 19.1.2

Conclusions:

1. The ANSA morphing process supports vehicle exterior CFD, DOE and Optimization Studies
2. When morphing is applied to large deformations, the resulting mesh may be of poor quality. However, this can be easily corrected using the functionality of Reconstruction available within the MORPH menu and can be applied to morphing if required.
3. ANSA encompasses a full-fledged Morphing menu which is completely integrated with ANSA’s interface and doesn’t require any additional mode=ule installations or licenses. The functions of the Morphing menu can be used to efficiently reshaped both FE and Geometry based models.
4. Morphing is a useful tool when it is required to modify and optimized existing models to produce a new model.