Challenge

Week - 8 - Morphing

AIM : For the given models, various MORPHING methods is to be perfomed in ANSA and elaboration of the process in brief.

MORPHING :

It is a process used to RESHAPE CAD GEOMETRY as well as FE, user can easily manipulate the parent design in order to fulfill different requirement or to make it more efficient.
ANSA allows us to perform four general types of MORPHING, they are:

DOMAIN MORPHING ( BOX ) : In this type of morphing, the part or entity which is to be morphed is enclosed in a box and then USER DEFINED CONTROL POINTS are assigned. Then the enclosed entity can be morphed easily. This operation can be performed in both CAD as well as FE, in case of FE the elements can be RESHAPED or RECONSTRUCTED in SHELL MESH.
source : solutions (ANSA)
DIRECT MORPHING : This typr of MORPHING gives user the ability to efficiently modify a part locally WITHOUT BOX CREATION. This method is extremely useful in CREATING LOCAL MODIFICATIONS ON SINGLE PART,CREATING DEPRESSIONS, , MOVING FEATURES ALONG THE CONTOUR OF A SURFACE and also to FREEZE ELEMENTS during the MORPHING PROCESSES.
PARAMETRIC MORPHING : The desired morphing actions can be saved as parameters which can be accessed in batch mode. Users can enforce desired shape changes BY CHANGING NUMERICAL INPUT VALUE FOR THE APPROPRIATE PARAMETER This method of morphing is highly utilized for 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 ( DESIGN OF EXPERIMENT ) models.
source : solutions (ANSA)
GEOMETRY MORPHING : This type of morphing allows the user to utilize the inventory of all the familiar FE morphing functions to perform equivalent operations in a CAD ENVIRONMENT ON GEOMETRICAL ENTITIES.
source : solutions (ANSA)

MORPHING IN VARIOUS INDUSTRIES :

AUTOMOBILE INDUSTRIES : Morphing has its wide and quality applications in automobile industries. The preinstalled design is modified in order to meet the new requirements like change in load variations, various design constraints or to make in even more efficient in practical. Morphing is also the basis of shape shifting vehicles. Eg; Maruti Suzuki SWIFT is taken a sedan form of SWIFT DZIRE to adapt the new expectations of consumer, etc.
AVIATION AND GAS TURBINE INDUSTRIES : In order to enhance the AERODYNAMIC PROPERTY such that it withstand or to perform more efficiently with varying working environment. In order to avoid BOUNDRY LAYER SEPARATION ( STALLING ), etc.
MARINE ENGINEERING : In order to reduce cavitation in TURBINE BLADES, the blade designed are morphed and futher CFD analysis results in comparatively less cavitation.

INPUT - 1ST MODEL :

BEFORE AND AFTER OF GEOMETRY CLEANUP.

VARIOUS MORPHING OPERATION IS PERFORMED ON ABOVE SHOWN MODEL AND RESULTS ARE SHOWN BELOW ;

After geometrical cleanup, the CAD is forwarded to MORPH MODULE in MODULES.
Here we will perform the FREE FREE MODULE, which will be aligned to any direction defined by user.
BOX selection for the new morph can be selected in MORPH MODULE by BOXES > NEW > ORTHO.
The dialogue will appear like this,
The Geometry should be selected as we are performing MORPHING over a CAD.
The Geometry which is to be Morphed is selected and on middle mouse button confirmation, the box is created, shown as;
Now the axis is to be selected as well as the control points and then the points can be moved wrt a particular axis.
The box can now be deselected or can be deleted by using BOXES > DELETE.
Some other MORPHED GEOMETRIES of this components are;

INPUT - 2ND MODEL :

VARIOUS MORPHING OPERATION UPON HAND REST MODEL :

The height of dog houses and ribs to be incresed for the same.
The ORTHO BOX has been created in order to increase the length of the features asked.
The height of the dog houses and ribs are increased using BOX MORPHING > MOVE. And by selecting controlling node extruded up.

LEARNING OUTCOME :

We came to know about various kind of morphing nd their singnificance in today's industries.
Performed BOX MORPHING over the CAD of component provided, to increase their height.

CONCLUSION :

Ship work like this
in your own course.