PHYS 332 Engineering Mechanics--Dynamics SPRING 1997
Textbook: Engineering Mechanics --
Dynamics
(2nd ed.)
by W. F. Riley and L. D. Sturges ( John
Wiley 1996)
Instructor: Dr. Mesgun Sebhatu. Office: Sims 203. Office Hours: MWF
10:00--10:50AM.
Available
at other times by appointment.
Phone: 323-2113x235, e-mail: sebhatum@winthrop.edu
Prerequisite: Statics (PHYS 331). Recommended Software: Dynamics
Software for Students.
Brief Description
of the Course: Engineering mechanics consists of statics (PHYS 331) and
dynamics (PHYS 332). Statics is the study of the effect of forces on
systems of particles and rigid bodies in equilibrium. Dynamics deals
with the fundamental principles of kinematics and kinetics of particles and
rigid bodies. Kinematics is a mathematical description of motion while
kinetics is the study of the relationship of motion and the forces that
cause it. Vector analysis and calculus are used extensively in engineering
mechanics. The major objective of engineering mechanics is to help the student
understand basic mechanics principles and apply them in the solutions of a
variety of problems. Solving problems
plays a highly significant role in the understanding and application of
dynamics concepts and principles. A student should make a serious effort to
solve all the assigned problems and ask questions about them in and outside
class. It also helps to work with classmates and use the recommended
tutorial software.
Tentative Course Outline and Test Schedule
I. Introduction:
General
Principles (Ch. 12); Kinematics of Particles (Ch. 13);
and
Kinematics of Rigid Bodies (Ch. 14)
Test
#1: Ch. 12, 13, and 14 Friday, February 7
II. Newton's Laws of Motion:
Newton's Laws
of Motion and their Application in Kinetics of Particles (Ch. 15)
and Kinetics of
Rigid Bodies (Ch. 16)
Test
#2: Ch. 15 and 16 Friday, March 7
III. Work and Energy:
Work and Energy
Methods and their Application in Kinetics of Particles(Ch. 17)
and Kinetics of
Rigid Bodies( Ch. 18).
Test #3: Ch. 17
and 18 Friday, April 4
IV.
Impulse and Momentum:
Impulse
and Momentum Principles and their Application in
the Kinetics of
Particles (Ch. 19) and Kinetics of Rigid Bodies (Ch. 20)
Mechanical
Vibrations: Undamped, Damped and Forced Vibrations (Ch. 21)
Test #4: Ch.
19,20 and 21 Friday, April 25
A comprehensive
Final Exam on Parts I to V. See
Final Exam Schedule
Computation of Final Grade:
The final grade will be based on:
The total homework Grade :
10%
The average of the best three test grades : 60%
The comprehensive final exam grade: 30%
-------------------------------------------------------------------------
Total G % 100%
-------------------------------------------------------------------------
Assignment of the letter grades depends
on the numerical grade distribution.
Usually letter grades are assigned as
follows:
G% > 90 "A"
80 ‑ 89 "B"
70
‑ 79 "C"
60
‑ 69 "D"
G%< 60 "F"
Make Up Tests: A student who
misses a test will obtain a "0" for it and will lose the opportunity
to have the lowest test grade dropped. The missed test becomes the lowest
grade. As soon as a student
contemplates missing a test, it is
preferred that the student make his reasons clear to the instructor so arrangements
for taking a test, preferably early, can be made. It will be highly risky to
miss more than one test.
Class Attendance Policy: The
attendance policy followed in this course is the same as that which appears in
the 1996‑97 Winthrop University Catalog.
Briefly, "If a student's absences in a course total 25% or more of
the class meetings for the course, the student will receive a grade of N, F, or
U, which ever is appropriate." Please read your catalog for details.
Students who leave early or come
excessively late will be marked absent despite the appearance of their
signature on the class roll. If an emergency forces a student to be late or to
get up and leave, it is polite and proper to let the instructor know. Students
will be encouraged to ask questions and participate in class discussions.
However, carrying lengthy conversation, reading or writing materials external to the course during the class
period is intolerable and considered disruptive. Such students will get some
warning and if they persist, they will be marked absent.
PHYS 332 COURSE
SCHEDULE SPRING 1977
Date Topics Sections
General
Principles (Ch. 12)
1/15 Introduction
to Dynamics, Newton's Laws, Fundamental
Quantities 12.1-12.3
1/17 Units
of Measuremnet, Dimensions, Methods of
Problem Solving 12.4-12.5
1/17 Significance
of Numerical Results 12.6
Kinematics
of Particles(Ch. 13)
1/21 Rectilenear
Motion 13.1-13.3
1/21 Relative
Motion in a strait Line 13.4
Homework1A: 13.1-13.4
13.7-13.10 13.12 13.13-13.16
13.26 13.37 13.47
13.51 13.56 13.63 13.73
13.80
1/23 Plane
Curvilinear Motion 13.5
1/23 Relative
motion in a Plane and in Space 13.6-13.7
Homework1B:
13.87 13.94 13.94 13.99
13.103 13.116 13.126
13.137 13.147
13.159 13.162 13.168 13.172 13.180 13.185
Kinematics of Rigid Particles (Ch. 14)
1/25 Introduction,
Translation, Planar Motion 14.1-14.3
1/28 Rotation
About a Fixed Axis 14.4
Homework1C:
14.2
14.6 14.13 14.20
14.27 14.39
1/31 General
Plane Motion 14.5
2/3
Motion Relative to Rotating Axes 14.6
2/5 Three-Dimnsional
Motion of a Rigid Body 14.7
Homework1D: 14.44
14.47 14.49 14.59 14.60
c14-67 14. 72 14.75
14.67 14.89 14.91 14.95
14.111 14.112 14. 118
14.121 14.128 14.140
14.142
14.146 14.154
2/7 Homework
1 due before test #1 starsts
2/7 Test
#1 on Chapters 12, 13 and 14
2/9 Discussion
of test #1
Kinematics of Particles: Newton's Laws (Ch. 15)
2/11 Introduction,
Equations of Motion, Rectilinear Motion 13.1-13.3
Homework2A: 15.2
15.8 15.11 15.15
15.21 15.29 15.33 15.39 15.43
2/13 Curvilinear Motion, Central Force
Mption 15.4-15.5
Homework2B 15.79
15.82 15.85 15.93
15.96 15.102 15.103 15.111 15.121
Kinematic
of Rigid of Bodies: Newton's Laws (Ch.
16)
2/15 Introduction,
Equations for Plane Motion, Moment and Products of Inertia 16.1-16.3
2/18 Translation,
Rotation, and General Plane Motion of Rigid Bodies 16.4
2/21 Three-Dimensional
Motion of A Rigid Body, 16.5
2/23 d'Alem\bert's
Principle-Reversed effective Forces 16.6
Homework2C: 16.1 16.7 16.15 16.25
16.27 16.31 16.36
16.42 16.46 16.51 16.55
16.62 16.73 16.75 16.85
16.92 16.111 16.115
2/25 Homework2
due before Test #2 starts:
2/25 Test
#2 on Chapters 15 and 16
2/28 Discussion
of Test #2
Kinematics
of Particles: Work and Energy Methods (Ch.17)
3/2 Introduction; Force, Distance, and
Velocity; Kinetic Energy; Work 17.1-17.4
Homewok3A: 17.2
17.4 17.8 17.8
17.16 17.18
3/5 Principle
of Work and Kinetic Energy 17.5-17.6
Homework3B: 17.21
17.25 17.34 17.42
17.45 17.56 17.51 17.59 17.63
3/8 Conservative
Forces and Potential Energy, General
Principles of Work and Energy 17.7-17.8
Homework3C: 17.69 17.73 17.76 17.82 17.88 17.91 17.94
17.107 17.110
3/10 - 3/15 ****SPRING
BREAK*******
Kinematics of Rigid Bodies: Work and Energy
Methods (Ch. 18)
3/18 Introduction,
Work of Forces and Couples Acting on Rigid Bodies, Kinetic Energy of Rigid bodies in plane motion. 18.1-18.3
3/20 Principle
of Work and Energy for the Plane Motion of Rigid Bodies, Power 18.4-18.5
Homework3d: 18.1 18.3 18.9
18.11 18.14 18.17
18.21 18.36 18.48
18.58 18.66 18.71 18.77 18.88
3/22