ME 221, Section M002
ME 221, Section M2; Dynamics of Mechanisms, Spring 2015
ME 221: Dynamics of Mechanisms 3 credits
Prerequisites: MATH 125 + ME 210.
Description: Brief review of dynamics of a particle. Kinetics and kinematics of two and
three-dimensional mechanisms. Emphasis will include free body diagrams, vector methods,
and various coordinate systems. Newton's law and energy methods will both be used.
Hibbeler, Engineering Mechanics: Dynamics, 13th ed., Pearson; ISBN 978-0132911276
Dr. A. Heydari, CM 320C, Tel: 394-2200, Fax: 394-2405,
Office Hours: Tuesdays and Thursdays from 10 to 12pm (if the door was closed, feel free to
knock). Webpage:
MWF 10-10:50am, Electrical Engr-Physics, Room 251B
Students with special needs or requiring special accommodations should contact the
instructor, and/or the campus ADA coordinator, Jolie McCoy at 394-1924 at the earliest
Under Board of Regents and University policy student academic performance may be
evaluated solely on an academic basis, not on opinions or conduct in matters unrelated to
academic standards. Students should be free to take reasoned exception to the data or views
offered in any course of study and to reserve judgment about matters of opinion, but they are
responsible for learning the content of any course of study for which they are enrolled.
Students who believe that an academic evaluation reflects prejudiced or capricious
consideration of student opinions or conduct unrelated to academic standards should contact
the dean of the college which offers the class to initiate a review of the evaluation.
The objective of this course is to provide the working knowledge required to formulate and analyze
engineering problems related to bodies in motion. The course will also provide a number of
approaches to dynamics problems, enabling flexibility in the solution process
Upon completion of this course, the student should be able to:
1. Choose and/or set up coordinate frames for analysis
2. Generate free-body diagrams
3. Form equations of motion and solve force/acceleration problems
4. Apply the principle of work and energy
5. Apply the principle of impulse and momentum
ME 221, Section M002
Kinematics of Particles (Chapter 12)
Rectilinear Motion, Dependent Motion, Curvilinear Motion.
Kinetics of Particles (Chapters 13, 14, and 15)
Newton’s Second Law, Equations of Motion, Work and Energy, Impulse and
Momentum, Impact.
Planar Kinematics of Rigid Bodies (Chapter 16)
Planar Rigid Body Motion, Translation and Rotation, Absolute and Relative Motion
Analyses, Rotating Frames.
Planar Kinetics of Rigid Bodies (Chapters 17, 18, and 19)
Equations of Motion for Translation, Rotation, and General Plane Motion, Work and
Energy, Impulse and Momentum.
The final grade will be based on the following:
Homework and Quizzes*
Midterm Tests (2)
Final Exam
*You must receive a passing grade on the homework and quizzes to pass the course.
Grade Scale:
A (90-100)
B (80-90)
C (70-80)
D (60-70)
F (<60)
Homework: This course will use a mixture of online homework through
MasteringEngineering and written homework assignments. All written homework
assignments will be collected before the class starts on the due date; 20% off in written HW
grading for those submitted after the class starts; no credit once the solutions are posted
(typically at the start of the next class). I encourage you to work in groups on written HW,
but each individual needs to submit the assignment to get credit. Please note with whom
you worked at the top of your homework. Only neatly written problems will be graded.
Exams: All exams will be closed book; make-ups will be given only under extreme
circumstances determined at the discretion of the instructor. It is expected that the student
will contact the instructor sufficiently in advance of an exam; cheating/plagiarism will not
be tolerated and will result in the disciplinary procedures outlined in the SDSM&T student
code of conduct.
Grading: Although I will try my best to grade fairly, everyone makes mistakes. If you
believe that I’ve made a mistake in grading your test, you have 1 week from the date that
the graded item is returned to request a re-grade. Of course, I may find that I missed some
mistakes that you made, so your grade may go up or down on re-grading.
Cell Phone Usage: Cell phones are required to be off during the class.
Email policy: I will respond to email during normal business hours (9am-5pm on
weekdays). Emails received outside of normal business hours will receive responses the
next business day. In other words, if you start your homework the night before it is due,
you will likely receive no help from me. Please adjust your work schedules accordingly.