MEEN 459/659 – Sound & Vibration
Measurements – SPRING 2019
Dr.
Luis San Andrés
Last update: April
8, 2019 NEW : NOTES 10 and guest lectures (9&10)
Course Description:
Credit 3. Basic acoustics, review of
vibration theory, wave propagation in vibrating systems, sound radiation from
vibrating systems, sound and vibration sensors and instrumentation, data
acquisition systems, measurement techniques, spectral analysis, spatial FFT
analysis, design of experiments with vibro-acoustic
systems, and applications.
Prerequisites: MEEN 363, MATH 308.
OBJECTIVES: To review the fundaments of vibration
analysis (SDOF and MDOF) as applied to lateral, torsional and axial
displacements in mechanical structures, rotating in particular; to learn about measurement vibration
techniques (time and frequency domain) and sensors, including calculation of
uncertainty and variability for multiple I/O systems; experimental techniques
for identification of system parameters using recorded data in the frequency
domain; relationship between sound and vibration and calculation of sound wave
propagation speed, etc.
Class Time: T, R 8:00-9:15 am JCAIN 206 or
R 5:30-6:45 pm JCAIN 202 on selected
dates (see page 2)
Instructor: Dr.
Luis San Andrés, Phone 862 4744, LsanAndres@tamu.edu
Office hours: T 9:20-10:00 pm, MEOB 117, or by scheduled appointment (e-mail in advance).
References: MEEN
617 Class Notes (handouts),
L. San Andrés,
(To
be released) Lectures, tutorials and case studies published in the
Turbomachinery and Pump Symposia and various professional magazines. Find web
resources at end of syllabus.
Other: MEASUREMENT SYSTEMS: APPLICATION &
DESIGN, Doebelin, E., 5th ed, ISBN-13: 978-0072990720
Sound
Propagation: An
Impedance Based Approach,
Y.-H. Kim
Fundamentals
of Acoustics by L. E.
Kinsler, A. R. Frey, A. B. Coppens, and J. V. Sanders
SYLLABUS learn about grading policies, exam schedules,
and more. (revised Jan 25)
Class
Notes (handouts & worked examples)
Recommendation: Download handouts
as needed. The lecturer may update the notes as the semester progresses.
HOMEWORKS (Group work only: 3 to 6 students)
Due 02/05: Homework 1 (zip file) à analyze measured transient response and identify parameters
An
example useful for your homework
Due 02/19: Homework
2 à use modal analysis to build free-free modes of test rotor
Readme useful for homework
Due 03/21: Homework
3 à analyze vibration test data (X<Y) recorded during startup of a
turbocharger + DATA for hmk and my
key
Due 04/12: Homework
4 à reproduce torsional vibrations in a motor-compressor and learn
effect of electro-magnetic pull. For reference read
2016 FEESE and interesting
article.
Due 04/23:
Syllabus – Content (subject to change – except exams dates)
|
week |
Instructor
lectures / content or topics |
All
5:30 pm lectures in JCAIN 202 |
|
|
Tuesday |
Thursday |
|
1 |
01/15
Review of basic SDOF vibrations: basic
EOM for vibration system and physical parameters (mass, stiffness, damping),
natural frequency and damping ratio. |
Periodic
forced response and
uses of frequency response function to design and troubleshoot mechanical
systems |
|
2 |
01/22
Review of basic MDOF vibrations: Modal
analysis (Undamped and Damped): |
Modal coordinates and
orthogonality properties, mode shapes and periodic forced response. |
|
3 |
01/29
Instrumentation for vibration measurement. Displacement,
velocity and acceleration. Pros and cons including cost and accessibility.
FRF of typical sensors. Proper selection of instrumentation and DAQ system. |
01/31 5:30 pm Dustin Pavelek, Kelm Engineering LLC |
|
4 |
02/05
Rationale and principles of measurement Accuracy
and precision. Static & dynamic measurements. Sensor calibration. Simple
uncertainty analysis (SISO) |
02/07
5:30 pm Joe Moreno,
Lyondell Basell |
|
5 |
02/12
DFTs and vibrations. The
discrete Fourier transform and its applications. Spectra operations, cross
spectra and coherence. |
02/14 5:30 pm Manuel Marin,
Lyondell Basell |
|
6 |
02/19
Field identification of
physical parameters in mechanical systems using frequency domain methods |
02/21 5:30 pm John Kocur, Machinery
Specialist, Exxon Mobil R&E |
|
7 |
02/26
Quantification of
Uncertainty and Repeatability in measurements for SISO and MIMO (Single
or Multiple Input and Output) systems |
02/28 5:30 pm Yve Zhao, Field
engineer, BHP Billiton |
|
8 |
03/05 EXAM I Thursday March 07 in class |
|
|
9 |
Spring
Break March 10-15 |
Lecturer
to Malaysia |
|
10 |
03/19
8:00 am Vibrations in rotating machinery API recommendations and limits (LogDec and stability). Measurements for Rotor Balancing
and balancing of rotors. How to balance a rotor |
03/21 8:00 am Kristo Naude, Senior Engineer, Engineering
Services, NRG |
|
11 |
03/26 8:00 am Tae-Ho
Kim, Kookmin Univ. (S Korea) Case
studies of Vibration Problems in Oil Free Microturbomachinery |
03/28
8:00 am Ed
Wilcox, Chevron
ETC Machinery |
|
12 |
04/02
8:00 am, Torsional Vibrations |
04/04
5:30 pm, John
J. Yu, Technical Leader, Machinery Diagnostic Services, Bently Nevada, BHGE |
|
13 |
04/09
8:00 am Vibration of Continuum systems. Free vibrations of strings, elastic
bars, beams and plates. Properties of normal mode functions. The wave
equation. |
04/11
5:30 pm, Jeff
Moore, Rotating
Machinery Manager, SwRI |
|
14 |
04/16
8:00 am Vykram Palant, POLYTEC. Intro to
laser vibrometry. Review of basic sound analysis Equation for acoustic wave
propagation and the meaning of wave number, wave speed, and frequency, and
their relations. |
04/18
5:30 pm, Nicolas Peton, Global Director, Machinery
Diagnostics Services, Bently Nevada, BHGE (France) |
|
14 |
04/23
8:00 am The future today: The
Industrial Internet of Things (IIoT) Revolution,
Digital Twins, etc. |
04/25
8:00 am Delivery of Report/Demo on V&S APP usage & group
presentations |
|
15 |
05/03 Exam II May
3: 3:00-4:00 pm |
|
RESOURCES on the web (there are a million more, below is just a
minuscule sample)
Proceedings of the TL/TAMU
Turbomachinery and Pump Symposia
Search for conference papers (O&G
vibrations) www.Rotordynamics.org
Eddy current Sensors and Conditioning
Monitoring
GE Baker Hughes https://www.industrial.ai/solutions
https://www.gemeasurement.com/orbit/condition-monitoring-asset-management
Turbomachinery
International Magazine
National Instruments Tool kits & DAQ
conditioning monitoring solutions http://www.ni.com
Piezoelectric sensors accelerometers, microphones, load cells, etc.
https://www.pcb.com/Resources/Tech-Notes
https://www.pcb.com/Resources/Videos
https://www.pcb.com/Resources/White-Papers
Optical (Photo) metrology
https://trilion.com/photogrammetry/
https://trilion.com/vibration-analysis/
http://texas-surveys.com/photogrammetry.php
Laser vibrometers -
fiberoptics https://learn.polytec.com
The Industrial Internet of Things (IIoT) and Industry 4.0
RELATIONSHIP
OF COURSE OBJECTIVES TO ABET
2019/20 PROGRAM OUTCOMES:
|
|
ABET
Program Outcome |
|
ABET
Program Outcome |
|
x |
Ability to identify, formulate, and solve
complex engineering problems by applying principles of engineering, science,
and mathematics. |
x |
Ability to function effectively on a team
whose members together provide leadership, create a collaborative and
inclusive environment, establish goals, plan tasks, and meet objectives. |
|
|
Ability to apply engineering design to
produce solutions that meet specified needs with consideration of public
health, safety, and welfare, as well as global, cultural, social,
environmental, and economic factors. |
x |
Ability to develop and conduct appropriate
experimentation, analyze and interpret data, and use engineering judgment to
draw conclusions. |
|
x |
Ability to communicate effectively with a
range of audiences. |
x |
Ability to acquire and apply new knowledge
as needed, using appropriate learning strategies. |
|
x |
Ability to recognize ethical and
professional responsibilities in engineering situations and make informed
judgments, which must consider the impact of engineering solutions in global,
economic, environmental, and societal contexts. |
|
|
The handouts
and textbook used in this course are copyrighted. By "handouts," I
mean all materials generated for this class, which include but are not limited
to syllabi, quizzes, exams, lab problems, in-class materials, review sheets,
and additional problem sets. Because these materials are copyrighted, you do
not have the right to distribute freely the handouts, unless the author
expressly grants permission.
Send all
comments, corrections or questions to LSanAndres@tamu.edu