Description: The course exposes students to geometric and solid modeling, finite elements, optimization and rapid-prototyping. To accomplish this, students design an artifact, represent it on the computer, analyze it using FEA then optimize it before producing a prototype. The course emphasizes the use of computer-based tools for engineering design. The web is used for reporting.
Textbook: None required
Course Instructors: Dr. Georges M. Fadel, e-mail:
fgeorge@clemson.edu, office: 202 EIB. url:http://www.clemson.edu/me/credo/people/faculty/fadelDr. Gregory M. Mocko,email:gmocko@clemson.edu,office: 243 EIB. url:http://people.clemson.edu/~gmocko
Prerequisites: Numerical methods and programming experience.
References (Outside Reading):
• Computer Aided Design by Dean L. Taylor, Addison Wesley, 1992.
• Foundations of Computer Aided Design by Onwubiko, West publishing, 1989
• I-DEAS student tutorial guide. SDRC
• Pro-E Training Guide, Parametric Technologies
• Geometric Modeling, M. Mortenson, Wiley, 1985
• Mathematical Elements for Computer Graphics, Rogers & Adams, McGraw Hill, 1990
• Computer Graphics & Geometric Models for Engineers, by V. Anand, Wiley, 1993.
• Rapid Prototyping and Manufacturing - Fundamentals of Stereolithography, by P.
Jacobs, SME 1992.
• The Finite Element Method is Mechanical Design, by C. Knight, PWS Kent, 1993.
Objective: To provide the students with a foundation in computer aided design. To produce knowledgeable users of CAD systems, and to make the students aware of the capabilities and limitations of computer design tools for engineers.
Topical outline:
• The Design Process
• Matrix and Numerical Techniques
• CAD - Wire frame and surface modelers - Surfaces of revolution - Free Form surfaces
- Solid modeling (B-rep and CSG) - Features
• FEM - 1D, 2D, (3D), Energy methods
• Optimization
• Rapid Prototyping - Processes (Stereolithography, Selective Laser Sintering, etc..)
- Software - Materials.
• Software tutorials
Assignments: You are required to solve several problem sets. These problems must be solved either by hand or using a computer. The assignments must be performed on an individual basis, and must be turned in on time. 10 points will be deducted from the grade for each day an assignment is overdue. After four days, no credit will be given to a late assignment. A weekend counts as one day.
A project will be assigned around the end of the first month. This team project aims to integrate the material taught in class into one complete design process. You will represent the selected artifact on a CAD modeler (IDEAS), analyze it, or part of it, on a finite element program (IDEAS, ANSYS, ABAQUS), possibly apply some optimization algorithm to improve the artifact, and then prototype it (either virtually or physically).
Project reports will be turned in on the web. No paper output will be required, but you
will have to develop your web pages with all the results discussions, graphics, etc.
Grading: Assignments 30%, Semester project 30%, quizzes 20% (2), final 20%. Graduate students: Assignments 25%, Semester project 30%, presentation 5%, quizzes 20% (2), Final 20%
Graduate students. In addition to the regular homework and project,
graduate students will have additional assignments. Such assignments will require the use
of optimization to modify the design subject to one or more objectives and the possible
verification of FEA results, using stress visualization methods on the prototypes.
HANDOUTS
Chapter 0 - Introduction to the course
Chapter 1 - The Design Process
Chapter 2 - Review of Mathematics
Assignment 2. Gauss elimination on tridiagonal matrices
Chapter 3 - Geometric modeling (not available yet)
Chapter 4 - Finite Elements Methods (not available yet)
Assignment 4 - Finite elements