NORTH CAROLINA STATE UNIVERSITY DEPARTMENT OF MECHANICAL AND AEROSPACE ENGINEERING MAE 208: ENGINEERING DYNAMICS DR. GREGORY D. BUCKNER FALL 2014 Classroom: 2124 EBIII Office: 3260 EBIII Schedule: MW 12:50-2:05 PM Office Hours: MW 2:05-3:30 PM Website: www.mae.ncsu.edu/buckner/courses/mae208 (and by appointment) E-mail: [email protected] Message Board: https://piazza.com/ncsu/fall2014/mae208/home COURSE DESCRIPTION An introduction to kinematics and kinetics of particles in rectangular, cylindrical, and curvilinear coordinate systems; energy and momentum methods for particles; kinetics of systems of particles; kinematics and kinetics of rigid bodies in two and three dimensions; motion relative to rotating coordinate systems. COURSE OBJECTIVE To provide students with a fundamental understanding of the theory and applications of engineering dynamics PREREQUISITES MAE 206 with a grade of C or better, MA 242 REQUIRED TEXTS R.C. Hibbeler, Engineering Mechanics: Dynamics, any recent edition, Prentice-Hall G.D. Buckner, Fall 2014 Course Notes: MAE 208 Principles of Engineering Dynamics, NCSU Bookstores (Isaac Pomper, [email protected], 919-515-3915) GRADING Midterm Exams (2) 40% Homework 20% (Due at beginning of class, 2 lowest scores dropped, late homework will not be accepted) Pop Quizzes 10% (First 5 minutes of class, 2 lowest scores dropped) Project 10% Final Exam 20% GRADING SCALE (REQUIRED %) A+ A A- B+ B B- C+ C C- D+ D D- 98 92 90 88 82 80 78 72 70 68 62 60TENTATIVE SCHEDULE Week Topics Reading Aug 20 Aug 25, 27 Course Introduction Particle Kinematics Straight line motion 12.1-12.3 Sep 3 (Sep 1 Labor Day Holiday) Curved path motion Dependent and Relative motion analysis 12.4-12.8 12.9-12.10 Sep 8, 10 Particle Kinetics: Newton’s Laws Newton’s laws of motion 13.1-13.3 Sep 15, 17 Equations of motion: straight line Equations of motion: curved path 13.4 13.5-13.6 Sep 22 Midterm Exam Review Sep 24 Midterm Exam #1 Sep 29, Oct 1 Particle Kinetics: Work and Energy Work and energy 14.1-14.3 Power and efficiency 14.4 Oct 6, 8 Conservation of energy Particle Kinetics: Impulse and Momentum Linear impulse and momentum 14.5-14.6 15.1-15.2 Oct 13, 15 Conservation of linear momentum 15.3 Impact Angular impulse and momentum 15.4 15.5, 15.7 Oct 20, 22 2D (Planar) Rigid Body Kinematics Translation Rotation 16.1-16.2 16.3 Oct 27 Midterm Exam Review Oct 29 Midterm Exam #2 Nov 3,5 Oct 29, 31 Projects Assigned General motion: absolute motion analysis Relative motion analysis: velocity and acceleration 16.4 16.5-16.7 Nov 10, 12 2D (Planar) Rigid Body Kinetics Equations of Motion (EOM) Mass moments of inertia 17.2 17.1 Translation, rotation, and general plan motion 17.3-17.5 Nov 17, 19 Nov 24 (Nov 26 Thanksgiving Holiday) Dec 1 3D Rigid Body Kinematics Rotation about a fixed axis General motion Relative motion analysis: velocity and acceleration 3D Rigid Body Kinetics Angular momentum, inertia tensor 20.1 20.3 20.4 21.1, 21.2 EOM Gyroscopic Motion 21.4 21.5 Dec 3 Projects, Homework Due Final Exam Review Dec 8 Final Exam: 1:00-4:00 PM, 2124 EBIII (Tentative)NOTES  This course deals extensively with the fundamentals of problem solving… class attendance and attention to homework are highly recommended.  Homework is due at the beginning of class, and late homework will not be accepted.  Academic dishonesty rules, as outlined in the NCSU Code of Student Conduct, will be strictly enforced. Any suspected act of academic misconduct will be immediately referred to the NCSU Office of Student Conduct.  Students are encouraged to work in small groups and use additional reference materials for the solution of homework assignments and design projects. However, copying and submitting the work of other students as your own is a violation of the NCSU Code of Student Conduct, and will be treated as such.  Note: copying figures, equations, or text from other sources without properly referencing these sources is plagiarism: a violation of the NCSU Code of Student Conduct that will be referred to the NCSU Office of Student Conduct.  Students wishing to eat, sleep, surf the internet, read newspapers, talk on cellphones, etc. are encouraged to do so outside of the classroom.  Any student with a disability who is registered with the NCSU Disability Services Office (DSO) should schedule an appointment with Dr. Buckner at the beginning of the semester to discuss academic accommodations. More information on DSO services and procedures can be found at http://www.ncsu.edu/dso.  As members of the NC State Wolfpack community, we share the responsibilities of expressing concern for fellow classmates and ensuring that the classroom remains a safe environment for learning. If the behavior of a fellow classmate concerns or worries you, please report this to the NC State Students of Concern website: http://studentsofconcern.ncsu.edu/. Although you may report anonymously, it is recommended that you share your contact information for follow-up purposes.  Online class evaluations will be available for students to complete during the last two weeks of the fall term. Students will receive an email message directing them to a website where they can login using their Unity ID and complete evaluations.  Evaluation website: https://classeval.ncsu.edu/  Student help desk: [email protected]  More information about ClassEval: http://www.ncsu.edu/UPA/classeval/HOMEWORK SUBMISSION GUIDELINES  Use standard size (8 ½” by 11”) Engineering Paper (green or yellow), not notebook paper, sheets from a spiral notebook, or the back side of previously used paper.  Emphasize accuracy and readability. Please do not scribble, cross out errors, or write in the margins.  Label each page with your name, and staple all pages in the top left corner. Please do not fold homework submissions.  Draw correct free-body diagrams whenever appropriate.  Indicate the method of solution and any assumptions or approximations made.  Identify answers clearly by enclosing them within a box.  Engineering solutions are not complete without appropriate units.  The goal of attempting homework is to arrive at a correct solution using an appropriate method, not to invent a method that produces the answer listed in the back of the book (they are frequently