EG 10111: Module 1 The Tower Builders

1. EG 10111: Module 1The Tower Builders Introduction to Engineering Systems Lecture 1 (8/28/2009) Prof. Andrés Tovar

2. Announcements Bring headphones/earphones to the Learning Center next week. Visit Concoursehttp://concourse.nd.edu/FA09-EG-10111 Using "Laws of Nature" to Model a System

3. People Dr. Liz Kerr, CE159 Fitz Dr. Andrés Tovar, AME371 Fitz Dr. Kerry Meyers, FYEP Dr. Leo McWilliams, FYEP Dr. Jay Brockman, FYEP Natalie Gedde, LC

4. About EG 10111 : Lectures • EG 10111 will give you the opportunity to determine if Engineering is right for you through: • Exposure to different fields • Meeting faculty and students from various disciplines • Meets on Mon and Fri

5. About EG 11111 : Learning Center • EG 11111 provides the opportunity for a hands-on experience in various engineering disciplines. • Meets on Tues., Wed., or Thurs. • Projects • Module #1: Tower Builder • Module #2: Programming Using MATLAB • Learning Center Materials posted on Concourse • Read & print before learning center

6. About EG 10111 and EG 11111 • Homework • Assigned as part of lecture • Available on Concourse every Monday • Due in Learning Center following week • Deliverables • Assigned in Learning Center • Located in text box at the end of each learning center • Due in Learning Center following week • Both due at Beginning of Learning Center • Group Work is encouraged, but… • Must turn in original individual work. Please cite any references and include others who you worked with. See Honor Code!

7. Exams • Two Exams • Non-cumulative • Exam 1: • October 14th • First Module Lectures & Learning Centers (Tower Builder) • Exam 2: • Final’s Week • Second Module Lectures & Learning Centers (MATLAB Programming)

8. Grade Distribution Midterm Exam (25% of final grade) Final Exam (25% of final grade) Homework (10% of final grade) Project 1 (15% of final grade) Project 2 (15% of final grade) Section (10% of final grade) Using "Laws of Nature" to Model a System

9. Resources Available • Faculty • Student Assistants • Classmates (study groups) • Other Contacts • Peer Mentors • First Year Advisor/Tutoring • Women’s Engineering Program • Minority Engineering Program

10. Survey 10 minutes

11. Engineering - What is it? http://www.merriam-webster.com/dictionary/engineering Mathematics (Language) Technology (Synthesis) Science (Analysis) The application of science and mathematics by which the properties of matter and the sources of energy in nature are made useful to people. Engineers are creative problem-solvers!

12. Science, Mathematics, and Engineering The world is filled with two kinds of things: natural things and artificial (man-made) things (H. Simon, 1968, The Sciences of the Artificial). Scientists investigate natural phenomena. “Science” derives from the Latin scientia, which means knowledge. Engineers create artificial things. “Engineering” derives from the Latin ingenium, which refers to to one’s ability to design or create things. Mathematicians seek out patterns and establish truth by rigorous deductions. “Mathematics” derives from the Greek mathema, which means learning. Using "Laws of Nature" to Model a System

13. Scientific method vs. Engineering process Scientific method • State your question • Do background research • Formulate your hypothesis • Design experiment • Test your hypothesis by doing an experiment • Analyze your results & draw conclusions • Present results Engineering process • Identify your need • Do background research • Formulate your design problem • Prepare initial design • Build and test a prototype • Test & redesign as necessary • Present results http://www.sciencebuddies.org/science-fair-projects/project_engineering.shtml

14. An engineering problem Newton (1643-1727) Archimedes (287BC-212BC) 1st Law (inertia): An object at rest tends to stay at rest and that an object in uniform motion tends to stay in uniform motion unless acted upon by a net external force. 2nd Law (classical mechanics): F=ma 3rd Law: For every action there is an equal and opposite reaction. Give me a place to stand on, and I will move the Earth.

15. An engineering problem How to lift an object heavier than a person can carry? P = W/2 P = W P = W/2 P = W W W W W

16. An engineering problem How to lift an object heavier than a person can carry? http://www.swe.org/

17. Where and when do we learn the theories? • Chemical Engineering • Chem. & Biomol. Analysis • Computer Methods • Thermodynamics • … • Aerospace Engineering • Mechanics I & II • Intro to Aeronautics • Thermodynamics • … • Computer Science • Fund. of Computing • Discrete Mathematics • Logic Design • … • All engineering majors take a common core of math and science courses (taught by the College of Science) • Each engineering major has a required set of engineering science courses (taught by College of Engineering departments) • often have topics in common with science courses, but context/emphasis on modeling real-world systems • Example sophomore courses:

18. Where and when do we learn to use the tools? Mechanical engineering seniors working on their RoboFootball squad • Each engineering department has sophomore-level courses where you learn the basics of modeling, analysis, and design using relevant computer tools • often as part of a course where you also learn the theory • Senior design courses give you the opportunity to take on some impressive challenges

19. Engineering disciplines • Aerospace Engineering • Agricultural Engineering • Architectural Engineering • Bioengineering Engineering • Chemical Engineering • Civil Engineering • Computer Engineering • Computer Science • Electrical Engineering • Electronic Engineering • Engineering Technology • Environmental Engineering • Industrial Engineering • Materials Science and Engineering • Mechanical Engineering • Mining Engineering • Nuclear Engineering • Petroleum Engineering • Software Engineering http://www.careercornerstone.org/

20. Aerospace Engineering Structural design Guidance, navigation, and control Instrumentation and communication Production methods -- Commercial airplanes Military jets Helicopters Spacecraft Missiles and rockets

21. Chemical Engineering Pharmaceuticals Pulp and paper Petrochemicals Food processing Polymers Biotechnology Environmental health and safety

22. Computer Science Algorithms Artificial Intelligence Architecture Bioinformatics Databases Graphics and visualization Systems and networking Programming languages Scientific computing

23. Civil Engineering Structural Environmental Geotechnical Water Resources Transportation Construction Urban Planning

24. Electrical Engineering Electronic Circuits Telecommunications Control systems Electronic Materials and Devices Nanoelectronics Optoelectronics -- Generation Transportation Distribution

25. Mechanical Engineering Design Manufacturing Materials Fluids and Thermal Science -- Industrial machines Biomechanics Robotics and Mechatronics Automotive industry Naval and aerospace industry

26. Engineering disciplines: average salary http://www.careercornerstone.org/ Aerospace Engineering: $87.6K Chemical Engineering: $78.8K Civil Engineering: $68.6K Computer Science: $93.9K Electrical Engineering: $75.9K Mechanical Engineering: $69.8K

27. Our engineering problem • Performance Objective: • Limit deflection of tower to defined limit under a specified load using bracing • Design should be as efficient as possible (use least amount of material) • Major Constraints: • Tower height is fixed • Tower plan (shape) is fixed • Fixed amount of materials • Functional constraints on bracing Slide courtesy of Dr. Kijewski-Correa

28. DESIGN STAGE CONSTRUCTION & VERIFICATION Investigate Designs using Model Construct Design Optimize Design Experimentally Verify Behavior Predict Behavior Our engineering design process MODEL DEVELOPMENT Gather Data Develop Model Verify Model • Five M paradigm • Measure • Model • Manipulate • Make

29. For next class • Read Chapter 1 from Brockman’s book. • Check Matlab videos http://www.screencast.com/usersIntroEngineering/folders/MATLAB Using "Laws of Nature" to Model a System