EGN 3321 DYNAMICS
Fall 2011
(Class #: 81957 / 81958)
A. LOGISTICS
Instructor :
Dr. Ju Sun, Instructor
Office: EC 3254; Phone: 305-348-2067; email: sunju@fiu.edu
Office Hours :
Room: EC 3254; Monday and Wednesday, 2:00−4:30 pm (other times by
appointment).
Class Schedule:
Class # 81957: MoWeFr 10:00−10:50 am (Lecture), and We 11:00−11:50 am,
(Problem solving), EC 1112.
Class # 81958: MoWe 5:00−6:15 pm (Lecture), and Fr 5:00−6:15 pm (Problem
solving), EC 1112.
Textbook:
“Engineering Mechanics: Dynamics”, by R.C. Hibbeler, 12th edition, Prentice
hall, 2010.
Print: ISBN-10: 0-13-607791-9; ISBN-13: 978-0-13-607791-6.
eText: ISBN-10: 0-13-609201-2; ISBN-13: 978-0-13-609201-8.
TA:
TBA.
Course Web:
http://web.eng.fiu.edu/~sunju/egn3321/home.htm
Online Tutorial:
http://www.masteringengineering.com
B. CATALOG COURSE DESCRIPTION
Study of the motion of particles and rigid bodies applying a vector approach. Topics include: motion of a
particle; motion of a rigid body; relative motion; kinetics of translation, rotation, and plane motion; workenergy methods; impulse-momentum methods.
C. COURSE OBJECTIVES
1.
2.
3.
4.
5.
6.
7.
8.
9.
Understanding the concepts of Engineering Mechanics, Statics, and Dynamics.
Understanding Newton’s Laws.
Understanding Particles and Rigid Bodies.
Understanding the concept of Kinematics of particles and rigid bodies.
Understanding the concept of Kinetics of particles and rigid bodies.
Understanding the concepts of systems of particles.
Analyzing Plane Motion of Rigid Bodies using Forces and Acceleration method.
Analyzing Plane Motion of Rigid Bodies using Energy and Momentum methods.
Applying vector analysis to solve problems.
1
D. MECHANICAL ENGINEERING PROGRAM OUTCOMES
(A) Ability to apply knowledge of mathematics including statistics, multivariable calculus and
differential equations, science including physics, and engineering
(E) Ability to identify, formulate, and solve engineering problems
(I) Recognition of the need for, and a ability to engage in life-long learning
(K) Ability to use the techniques, skills and modern engineering tools necessary for engineering practice.
E. COURSE GRADING
Course-Work Evaluation
Quizzes (Pop-up)
Exam I
Exam II
Exam III
Homework + Attendance
Total
25%
25%
25%
25%
5% (Extra)
105%
Grading Scale:
GRADE
A
AB+
B
B-
SCORE RANGE
90 % & up
86 % & up
82 % & up
78 % & up
74 % & up
GRADE
C+
C
CD
F
SCORE RANGE
70 % & up
67 % & up
64 % & up
61 % & up
Below 58 %
Course Policies:
Homework: Homework will be assigned and solutions will be posted, all through an online tutorial
system “MasteringEngineering” (See Section F for details). It is very important that you perform
the homework on your own before you utilize the solutions to identify your errors. No late
homework submission will be accepted for any excuse.
Quizzes and Exams: Pop-up quizzes will be given in both regular lecture and problem solving
classes. No make-up quiz will be granted for any excuse. Excusable absence from the scheduled
exams is accepted only if the student informs the professor before the event such as illness and nonreschedulable prior appointment, or after the event such as last-minute medical or other
emergencies, within a reasonable time frame and with a valid documentary proof shown (e.g.,
medical memo from doctor, letter from employer, etc.). In all cases, academic honesty is expected.
Under this condition, a make-up test will be honored.
Class Attendance: It is required that every student attend both the lecture and the problem solving
sections on a regular basis. Attendance to the problem solving class will be checked and recorded
for extra credits.
No 4-C Policy: No Cell-phone, Computer (unless taking notes or test), Chatting, or Cheating is
allowed or accepted in this class.
Learning Strategy: Simply reading the solutions is absolutely the worst strategy for this course.
You need to practice as much as possible.
2
Calculators allowed in test (by National Council of Examiners for Engineering and Surveying):
Casio: All fx-115 models. Any Casio calculator must contain fx-115 in its model name. Examples of
acceptable Casio fx-115 models include (but are not limited to)
• fx-115 MS
• fx-115 MS Plus
• fx-115 MS SR
• fx-115 ES
Hewlett Packard: The HP 33s and HP 35s models, but no others.
Texas Instruments: All TI-30X and TI-36X models. Any Texas Instruments calculator must contain
either TI-30X or TI-36X in its model name. Examples of acceptable TI-30X and TI-36X
models include (but are not limited to)
•
•
•
•
•
•
•
•
TI-30Xa
TI-30Xa SOLAR
TI-30Xa SE
TI-30XS Multiview
TI-30X IIB
TI-30X IIS
TI-36X II
TI-36X SOLAR
Academic Misconduct: Florida International University is a community dedicated to generating and
imparting knowledge through excellent teaching and research, rigorous and respectful exchange of
ideas, and community service. All students should respect the right of others to have an equitable
opportunity to learn and honestly to demonstrate the quality of their learning. Therefore, all students
are expected to adhere to a standard of academic conduct, which demonstrates respect for
themselves, their fellow students, and the educational mission of the University. All students are
deemed by the University to understand that if they are found responsible for academic misconduct,
they will be subject to the Academic Misconduct procedures and sanctions, as outlined in the
Student Handbook.
Other: Academic dishonesty is a serious offense and will be treated according to the University
policy. The instructor will abide by the University’s policy on religious holidays.
F. INFORMATION REGARDING “MasteringEngineering”
“MasteringEngineering” is an online tutorial and homework system that accompanies the textbook listed
above in Section A. All homework will be assigned and graded through this system for this course. As a
student to register and access this online system, you need to have:
1. A valid e-mail address
Please sign up with a valid email address, by which the instructor can directly contact you.
2. Course ID
• For Class #81957 (morning section), the online course ID is “MESUN75995”.
• For Class #81958 (afternoon section), the online course ID is “MESUN13122”.
3. A valid online access code (provided by publisher as you purchase the textbook)
3
G. CONTENTS
Week
Chapter
1
12
2
12
3
12
13
4
13
5
14
6
15
7
15
12−15
8
16
9
16
16
10
11
12
17
17
18
16−18
13
18
14
19
15
19
16
12−19
Topics
Introduction to dynamics
Kinematics of a Particle: Rectilinear motion; Curvilinear motion
Rectangular components; Motion of a Projectile; Normal and tangential
components; Cylindrical components
Dependent motion of two particles; Relative motion of two particles
Kinetics of a Particle: Force and acceleration; Newton’s Second Law
Equation of motion (for a system of particles); Equations of motion
using different set of components
Kinetics of a Particle: Work and Energy
Principle of work and energy (for a system of particles); Conservative
force and potential energy; Conservation of energy
Kinetics of a Particle: Impulse and Momentum
Principle of linear impulse and momentum (for a system of particles);
Conservation of linear momentum; Impact
Angular momentum; Relation between moment of a force and angular
momentum; Principle of angular impulse and momentum
Exam I (3:30-4:45 pm, Oct 6th 2011, Thursday)
Planar Kinematics of a Rigid Body
Translation; Rotation about a fixed axis; Absolute motion analysis;
Relative-motion analysis: Velocity; Instantaneous center of zero
velocity; Relative motion analysis: acceleration
Relative motion analysis using rotating axes
Planar Kinetics of a Rigid Body: Force and Acceleration
Mass moment of inertia; Planar kinetic equations of motion;
Equations of motion for translation; Equations of motion for rotation
about a fixed axis; Equations of motion for general plane motion
Planar Kinetics of a Rigid Body: Work and Energy
Kinetic energy of a rigid body; Work of a force and a couple
Exam II (3:30−
−4:45 pm, Nov 10th 2011, Thursday)
Principle of work and energy; Conservation of energy
Planar Kinetics of a Rigid Body: Impulse and Momentum
Linear and angular momentum of a rigid body
Principle of impulse and momentum; Conservation of momentum
Exam III (2:15−
−4:45 pm, Dec 10th 2011, Saturday)
4