EM 313
DYNAMICS
FALL, 2015
1. Basic Information
Time and Place: TR 9:30am-10:45am, RGAN 207
Instructor: T. W. Wu
Office: RGAN 169, (859) 218-0644
Office Hours: MWF 10:00am-11:00am or by appointment or anytime you can catch me.
E-mail: timwu@engr.uky.edu
Class Website: http://www.engr.uky.edu/~timwu/em313_frame.htm
Textbook:
Engineering Mechanics Dynamics, 8th Edition, by Meriam, Kraige, and
Bolton, Wiley, 2015.
Course
Description:
To study the motion of particles and rigid bodies under the action of
forces.
Concepts to
be Introduced
Kinematics: Cartesian and polar coordinate systems; normal and
tangential components; translating and rotating reference frames. Kinetics of
particles and rigid bodies: laws of motion; work and energy; impulse and
momentum; vibration.
Prerequisites:
1. Have passed EM221; Concurrent with MA214.
2. Be enrolled in the College of Engineering or have consent of the Chairman
Grading:
Exam I (28%)
Exam II (28%)
Final Exam (30%)
Sep. 29
Nov. 3
Dec. 14, 10:30am
Homework (10%)
Class Attendance (4%, Note: X2 on each day missed)
A = 90, B = 80, C = 70, D = 60, E=below 60
A grade of zero will be given for all unexcused absences from quizzes and
exams. Late homework will not be accepted.
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2. Cheating:
Cheating and/or plagiarism on graded materials will not be tolerated. Copying HW from the
solution manual or from the screen while I am going over the HW in class will result in a very
serious charge of cheating. Discussion and assistance are permitted on homework assignments.
However, homework submitted must be the student's own work.
3. Make-up Exams
If you can not take the exam due to emergencies, you must notify the instructor by phone or in
person immediately (emails will not be accepted). You will need to provide a written statement
(from the doctor, for example) to prove it. Note that common cold without a fever or
complications can not be used as an excuse, even if you go to see a doctor. A general term called
“viral infection” can not be used either. Technically, anyone can go to a doctor’s office on any
particular day and get a receipt or stamp. That will not work in this class. Your doctor will need
to provide very specific reasons (such as high fever) justifying why you have to miss the exam on
that particular day. Car break-down can not be used as an excuse either. The make-up exam
should be taken as soon as possible. For each day you miss, you will need to provide a written
proof. Depending on how credible your excuse is, the make-up exam could be harder than the
regular exam.
4. Class Attendance
Class attendance will be taken regularly. When you have had 25% or more absences
(excused or unexcused) or have turned in less than 50% of the homework assignments, no
make-up exams will be given, even if you have a good excuse on that day. Good class
attendance and homework records will enhance your credibility for the excuses you provide, in
case that you have an emergency on the exam day.
5. Student Interaction
5.1 Students are expected to maintain communication with the instructor through various means:
Personal Meetings (by arrangement or during scheduled office hours)
E-mail or Phone
These interactions are expected to be conducted in a professional manner. It is essential that
students check e-mail on a daily basis. The UK e-mail address will be used by default, so
students must activate e-mail forwarding if they prefer another primary e-mail address.
5.2 The instructor will normally respond to e-mail or phone calls (received during normal office
hours) within four hours of receipt.
5.3 Students are expected to be familiar with, and have internet access, along with access to
software for document creation and editing. This access is provided at a number of on-campus
locations.
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6. Submission of HW Assignments
Assignments will be collected at the beginning of each class (within the first 15 minutes). If you
come into the class a little late (within the first 15 minutes), the first thing you do is to turn in
your HW. No one is allowed to copy HW from the screen while I am going over the solution and
then turn in the copied HW. If you can not come to class on a certain day, email me the HW
before the class.
7. Classroom and Learning Accommodations
UK Students requiring such accommodation should provide documentation of the need prior to
the first week of class. The Disability Resource Center certifies the need for and specifies the
particular type of such accommodations on a student-by-student basis.
8. Technical Support
If you have any difficulty related to the class website, contact the instructor immediately.
9. ABET Learning Outcomes
1.
Derive, understand, and convert expressions for position, velocity, and acceleration in
appropriate coordinate systems, using graphical and vector methods.
2.
Find velocities and accelerations using translating and rotating reference frames.
3.
Solve particle motion problems using Newton’s Second Law, work-energy, and impulse
momentum.
4.
Express kinematic relations between translational and angular quantities for rigid bodies.
5.
Analyze the motion of translating and rotating rigid bodies using Euler’s equations and
work-energy.
6.
Analyze situations of particle and rigid body free and damped vibration.
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10. ME313 Fall 2015 TENTATIVE COURSE SCHEDULE
Class
Date
1 (online) Aug
2
Sep
3
4
5
6
27
1
3
8
10
15
Day
R
T
R
T
R
T
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
17
22
24
29
Oct 1
6
8
13
15
20
22
27
29
Nov 3
5
10
12
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
T
R
24
25
26
17
19
24
T
R
T
27
28
29
30
Dec 1
3
8
10
T
R
T
R
Topic
Homework due
Introduction, 1-D kinematics
1-D kinematics, 2-D Kinematics x-y
n-t
Polar
Relative Motion
Constrained Motion
Sep 16 Last day to drop
Constrained Motion
Kinetics of Particles, x-y
Kinetics of Particles, n-t, polar
Exam I
Work and Energy
Work and Energy
Impulse and Momentum
Impulse and Momentum
Direct Central Impact
Direct Central Impact
Angular Momentum
Rigid-Body Kinematics, 3D Rotation, Absolute Motion Analysis
Relative Motion Analysis (velocity and acceleration)
Exam II
Instantaneous Center
Rotating Axes
Rotating Axes
Nov 13 Last day to withdraw
Rigid-Body Kinetics, Translation, Rotation
Rigid-Body Kinetics, General-Plane Motion
Work and Energy for Rigid Bodies
Nov. 25-28 Thanksgiving Holidays
Work and Energy for Rigid Bodies, Vibration
Vibration
Vibration
Vibration
Dec 14, Monday, 10:30am, Final Exam
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