Politecnico di Torino
Politecnico di Torino
Politecnico di Torino
Academic Year 2010/11
Computer aided design
1st degree and Bachelor-level of the Bologna process in Automotive Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Romagnoli Vittorio ORARIO RICEVIMENTO     21 0 27 0 4
SSD CFU Activities Area context
ING-IND/15 4 B - Caratterizzanti Ingegneria meccanica
Objectives of the course
The module aims to teach the basic principles of the technologies applied in CAD systems, potential for integration, and the evolution of information systems used to support design and documentation activities.
Expected skills
Students will be expected to acquire operational skills in the use of a latest generation three-dimensional modelling system and the knowledge of the CAD-CAM process and its related technologies.
Students must have obtained credits in the Industrial Technical Drawing module before starting this course, and must be familiar with the fundamental concepts dealt with in the Basic Principles of Computer Science module.
Computer Aided Design and Computer Aided Manufacturing (CAD-CAM)
Design development process. General introduction to CAD-CAM systems. Physical objects, models and representations. Base technologies: Computer Graphics, Image Processing, Modeling, Pattern recognition.
Technologies to build physical objects: CAM process and Rapid Prototyping. Reverse Engineering technology.
Geometric Modeling
Parametric curves and surfaces. Bezier, Spline, B-spline and NURBS curves and surfaces.
3D geometric models; wire frame, B-Rep and CSG. Modeling evolution from geometry based to knowledge based: feature-based systems. Notes on non-rigid objects modeling.
Elements of Computer Graphics
Hardware: systems overview, input and output graphical devices. Software: interactive graphics packages evolution.
Introduction to basic algorithms for geometric transformations: translation, rotations and transformation of scale. Viewing techniques. Rendering techniques. Absolute and relative coordinate systems.
Integration Methods and Technologies
Issues of CAD-CAE-CAM integration. PDM systems, Digital Mock-up. Data exchange problems: the transfer of information between different CAD systems; IGES, STEP and SAT standards. Notes on process modelling.
Complementary subjects to industrial technical drawing
Tolerance chains. Overview on Geometric tolerance and applications. Overview on shaft - hub connections: keys and tangs. Representation of bearings, belt, pulleys and cog-wheels.
Laboratories and/or exercises
Modeling of mechanical components by using CAD feature-based systems. Assembly of components. Documentation of components and assemblies through two-dimensional drawing. Apply kinematic constraints to assemblies and their study.
Lecture notes
Summaries of Practical Work
Reference texts:
Foley, van Dam, Feiner, Hughes ' Computer Graphics: principles and practice, Addison-Wesley ' 1997
Jami J. Shah, Martti Mantyla ' Parametric and Feature-Based CAD/CAM ' John Wiley & Sons ' 1995
Michael E. Mortenson ' Geometric Modeling ' Second Edition ' John Wiley & Sons, 1997
H. Colin Simmons, Manual of Engineering Drawing, Elsevier
B. Griffith, Engineering drawing for manufacture, Kogan page science
C. Jensen, J. D. Helsel, Engineering drawing and design, Mc Graw-Hill
E. Chirone, S. Tornincasa, Disegno Tecnico Industriale, vol. I e II, ed. Il Capitello, ed 2004/6
Revisions / Exam
The exam consists of a practical test in a CAD laboratory and a written paper test. These tests will evaluate, respectively, the operational skills and the theoretical knowledge. To pass the exam students have to pass both the practical test and the written one.

Programma definitivo per l'A.A.2007/08

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