About Book:
We are pleased to bring out our fully revised sixth edition “COMPUTER AIDED DESIGN” book for Engineering and Technology studies. This book is based on the latest syllabi prescribed by the Anna University Chennai, Trichy, Coimbatore & Tirunelveli for 5th Semester Mechanical engineering students of its affiliated colleges.
Almost all the engineering industries are benefited in several ways by the integration of computers into the product design, development and manufacturing CAD technology makes use of the computer to create drawings of parts and assemblies on computer files which can be further utilized for analysis and manufacturing purposes. The various features of the product can be evaluated during design stage itself by using computers. This has been made possible through the use of design workstations or CAD terminals, and graphics and analysis softwares which help the designer to optimize the design. Thus, for a design engineer, it is essentially required to have the knowledge of CAD.
Unit 1 deals with the fundamentals of computer graphics in which in which product cycle, design process, sequential and concurrent engineering, CAD system architecture, computer graphics, coordinate systems,2D and 3D transformations, homogeneous coordinates, line drawing, clipping, and viewing transformation are discussed. Elaborate treatment of analytical and theoretical nature is provided in all topics.
Unit 2 has an in-depth dealing of geometric modeling. The topics covered in this unit are representation of curves, Hermite curve, Bezier curve, B-spline curves, rational curves techniques for surface modeling, surface patch, Coons and bicubic patches, Bezier and B spline surfaces. It also covers solid modeling techniques such as CSG and B-rep.
Visual realism techniques such as hidden line, surface and olid removal algorithms, shading, colouring, and computer animation techniques have been discussed in Unit 3.
Unit 4 deals with the assembly modeling, inference of positions and orientation, tolerance analysis, mass property calculations, mechanism simulation and interference checking.
Standards for computer graphics, Graphical Kernel System (GKS), standards for exchange images. Open Graphics Library (OpenGL), data exchange standards such as IGES, STEP, CALS etc. and communication standards are treated elaborately in Unit 5.
Important solved problems and questions have been added in each unit which will enable the students to score high marks in the University examinations. In addition to this, two mark questions and answers are added at the tail end of each unit.
