Instructor:
Professor Pan Michaleris
232 Reber Bldg
863-7273
pxm32@psu.edu
Office hours: Monday & Wednesday: 4:30-5:30 pm
Teaching Assistant: Lisa Domanowski
241 Reber Bldg
ldd128@psu.edu or domanowski@yahoo.com,
Office hours: Thursday 11:15-1:15 noon
Text:
Mechanical Vibrations by S.S Rao, 2nd and 3rd Edition.
Addl. Text: Theory of Vibration with
Applications by W.T Thompson an M.D. Dahleh, 5th Edition
Prerequisites: Math 220, and 251, E Mech 12 and 13, ME 50
Homework 25% (drop the worst)
Projects
10%
Midterms
40%
Final
25%
The course deals with determining the response of mechanical systems to time varying disturbances such as forces, moments, displacements, etc. The response is expressed in terms of varying displacements or stresses. The mechanical systems are represented (modeled) as combinations of energy storage and energy dissipative components such as springs, masses and dampers. Typical examples/applications of such systems include: car suspensions, aircraft landing gears, ship propulsion systems, machine tool drives, etc.
The course utilizes mathematical techniques covered in earlier mathematics
courses such as ordinary differential equations with constant coefficients,
Fourier analysis, Laplace transforms and the convolution integral.
We will utilize computers where appropriate to facilitate solutions of
more complex problems.
This is a tentative schedule and it should be used only as a guideline. This schedule may be changed and it is the student’s responsibility to be aware of any changes, which will be announced in the class.
Date Reading Topic Reading Problems
M 1/8
1.1-6 Introduction, Concepts
W 1/10 1.7-10
Elements of Vibratory Systems 1.1,2,4,5,12,13
F 1/12
2.1-2 Equations of Motion, Newton’s
Laws 1.19,24,25,28,29
M 1/15
notes Energy Methods
W 1/17
notes Differential Equations
Review
F 1/19
2.3-4 Free Vibration of Undamped
SDOF’s 2.1,4,5,6,8
M 1/22
2.5 Free Vibration
of Undamped SDOF’s 2.11,12,13-16,19,24,27,28
W 1/24
2.6-7 Free Vibration of Damped SDOF’s
2.49,52,55,60,62,79-84,97
F 1/26
3.1-3 Forced Vibration of Undamped
SDOF’s 3.1,2,6
M 1/29
3.4-5 Forced Vibration of Damped
SDOF’s 3.7,8-11,15-18
W 1/31
3.6 Base Excitation
3.21,22,24, 25
F 2/2
3.7 Rotating
Unbalance 3.27-32
M 2/5
3.8-10 Equivalent Viscous Damping 3.42,45,54,55
W 2/7
Examples
F 2/9
EXAM 1. (rescheduled for 2/15 6:30-7:45pm, 322 Sackett)
M 2/12
notes Assign Lab Project
W 2/14
1.11 Fourier Series
1.62-65,67-70
F 2/16
4.1-3 Fourier Series
4.1-4,6,8
M 2/19
notes Examples
W 2/21
4.4 Convolution
Integral 4.12,13
F 2/23
4.5 Convolution
Integral 4.17-21,22,23
M 2/26
Examples
W 2/28
4.7 Laplace
Transforms 4.46-47
F 3/2
Examples
M 3/5
Spring Break
W 3/7
Spring Break
F 3/9
Spring Break
M 3/12
Assign Computer Project 1
W 3/14
5.1-2 Multiple Degree of Freedom Sustems
F 3/16
5.3 Free Vibration of MDOF’s1
5.1,3
M 3/19
notes Matrix Review
W 3/21
5.3 The Eigenvalue Problem
5.5-7
F 3/23
5.4 Torsional Systems.
5.19,20
M 3/26
Examples
W 3/28
Examples
F 3/30
EXAM 2 (Rescheduled for 3/6 3:25-4:40pm, 203 EE West)
M 4/2
notes Free Vibration of Damped MDOF’s
W 4/4
Assign Computer Project 2
F 4/6
5.6 Forced Vibration
of Undamped MDOF’s 5.24,25-27,30,31
M 49
10.3 Vibration Measuring
Instruments 10.2,5,11-14
W 4/11
9.10 Vibration Absorbers
9.43,44,52,53
F 4/13
9.6-9 Vibration Control Strategies
M 4/16
8.1-8.2 Continuous Systems, Wave Equation 8.2,6
W 4/18
8.3-4 Vibrating Strings
8.19,21
F 4/20
8.5 Transverse
Vibration of Beams 8.33-34
M 4/23
Review
W 4/25
Review
F 4/27
Review
Homework 1
Homework 2
Homework 3
Homework 4
Homework 5
Homework 6
Homework 7
Lab Due 3/16
Computer Project 1 data
Computer Project 2 sample
2dof program
Single degree of freedom sytems
Matrix Review 1, 2,
3
Matlab sample files: Fourier series