Computer Aided Engineering Design

SUGGESTED PROJECTS 383

Figure P5 A scheme of surface patches for the automobile hood

levels of decomposition. The output shall be the quadtree data structure to the required levels. One
would need a robust point membership classification algorithm for 2D as a pre-requisite.

Project 10

Develop a modeling package incorporating various manufacturing operations required for sheet
metal applications. The software should model various operations like stamping, bending, welding
and sweeping. Develop a proper data structure, graphical user interface and rendering.

Project 11

Blank nesting is an important job in the tool and die industry. Any effort design stage to minimize
scrap be selecting interlocking figures or by using careful layouts may result in substantial material
savings. Develop a two-dimensional nesting algorithm for nesting 2D polygonal objects. Refer to the
following literature:

Nee A.Y.C., Computer aided layout of metal stamping blanks, Proceedings of Institution of Mechanical Engineers,
1984, Vol. 1, 98B, No. 10.
Prasad, Y.K.D.V. and Somasundaram S., CASNS: A heuristic algorithm for the nesting of irregular-shaped sheet-
metal blanks, Computer-Aided Engineering Journal, 1991.

Project 12

This project requires the study of how an expert taylor, with minimum number of measurements on
the human torso, creates the shirts, trousers and other apparels. The cut on the cloth-piece are free-
form curves optimally made so that various pieces can be accomodated on the standard width of the
cloth price.
Create a software to help the taylor in preparing a layout for various types of apparels.

y

x

z

Symmetry

plane

Primary surface 1

Primary surface 2

Triangular patch

Quadratic filllets

Primary surface 3