teqip workshop on modal analysis: theory in practice · selection/placement considerations of...
TRANSCRIPT
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KNOWLEDGE INCUBATION FOR TEQIP
IIT KANPUR
TEQIP Workshop on Modal Analysis: Theory in Practice September 17-21, 2018
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ABOUT
Modal analysis has a wide range of applications, from aerospace
engineering to food technology and almost everything one can think
of. This 5-day workshop aimed at introducing the science and practice
of modal analysis as a technique to solve vibration related problems
through rigorous theory and lab sessions. Teachers, students and
people from industry attended this workshop. This workshop
provided a comprehensive review of vibration theory with focus on
the practical implementation of experimental modal analysis testing
which widened participant’s understanding of vibrations. Concepts of
digital processing of measurements, excitation and measurement
techniques, details and functioning of vibration measuring
instruments and detailed analysis of measured data were the main
focus of this workshop. There were 16 lab sessions planned in this
event to provide instructive guidelines for dynamic testing,
selection/placement considerations of sensors and actuators, and for
system identification using modal parameter extraction methods.
Objectives
To review the basics of the theory and practice of modal
analysis
To introduce experimental methods in modal analysis
To introduce and review digital signal processing of
measurements
To introduce estimation and extraction of modal parameters
(natural frequencies, damping and mode shapes) from measured
data
To introduce construction of mathematical models from
extracted modal parameters
To introduce advanced topics on dynamic substructuring, modal
reduction, modal expansion, model updating, and vibration
testing of weakly nonlinear structures
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WORKSHOP ORGANIZERS
1. Dr. Shakti Singh Gupta
Associate Professor
Department of Mechanical Engineering
Indian Institute of Technology Kanpur
http://home.iitk.ac.in/~ssgupta/
2. Dr. Mohit Law
Assistant Professor
Department of Mechanical Engineering
Indian Institute of Technology Kanpur
http://home.iitk.ac.in/~mlaw/
LIST OF SPEAKERS
1. Dr. Madhusudan Padmanabhan, ADA Bangalore
2. Dr. Mohit Law, IIT Kanpur
3. Dr. Pradeep Kumar, IIT Kanpur
4. Dr. Shakti Singh Gupta, IIT Kanpur
5. Dr. Suparno Mukhopadhyay, IIT Kanpur
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PARTICIPATING INSTITUTES
S.
No.
Institutes Number of
Participants
1 Nalanda College of Engineering, Nalanda,
Bihar
03
2 Baba Ghulam Shah Badshah
University,Rajouri ,J&K
01
3 S.V. N.I.T. , Surat, Gujarat. 02
4 Aligarh Muslim University, Aligarh (UP) 03
5 IIT Madras 02
6 Darbhanga College of Engineering,
Darbhanga, Bihar
02
7 Visvesvaraya national institute of
technology, Nagpur
03
8 IIT Roorkee 01
9 National Institute of Technology, Calicut 01
10 LNJPIT Chapra 02
11 Dr Babasaheb Ambedkar Technological,
University
01
12 Muzaffarpur Institute of Technology,
Muzaffarpur
01
13 Shri G. S Institute of Technology &
Science, Indore
01
14 MMMUT Gorakhpur (UP) 02
15 Govind Ballabh Pant University of
Agriculture & Technology, Pantnagar
02
16 F.E.T, M.J.P. Rohilkhand University,
Bareilly, U.P
01
17 U.P Textitle Technology Institute 01
18 Dumka engineering college 01
19 Islamic University of Science and
Technology
03
20 National Institute of Technology,
Rourkela
01
21 Institute of Engineering and Technology,
Bundelkhand University, Jhansi
02
Industry participants
UFI Filters India 02
Pranav Vikas India Pvt. Ltd. Faridabad 02
Ace Designers Limited 01
Grand Total 41
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STATEWISE PARTICIPATION
UP22%
Gujrat5%
Jammu & Kashmir
10%
Maharashtra10%
Bihar20%
Jharkhand3%
Madhya Pradesh
2%
Chennai5%
Uttarakhand 7%
Kerela2%
Odisha2%
Haryana10%
Karnataka2%
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SCHEDULE
Day-1, September 17, Monday
Time Event
8:30 – 9:00 AM Registration
9:00 – 10:30 AM Introductions and overview of workshop
Dr. Shakti Gupta/Dr. Mohit Law
10:30 – 11:00
AM
High Tea
11:00 – 12:30
AM
Theoretical basis of modal analysis (SDOF)
Dr. Shakti Gupta
12:30 – 2:00 PM Lunch Break
2:00 – 3:30 PM
Theoretical basis of modal analysis
(MDOF)
Dr. Shakti Gupta
3:30 – 4:00 PM Tea Break
4:00 – 5:30 PM Frequency response functions
Dr. Mohit Law
Day-2, September 18, Tuesday
Time Event
9:00 – 10:30 AM Measurement considerations
Dr. Mohit Law
10:30 – 11:00
AM
High Tea
11:00 – 12:30
AM
Fourier Analysis
Mr. Pradeep Kumar
12:30 – 2:00 PM Lunch Break
2:00 – 3:30 PM Digital signal processing – 1
Dr. Mohit Law
3:30 – 4:00 PM Tea Break
4:00 – 5:30 PM Lab 1
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Day-3, September 19, Wednesday
Time Event
9:00 – 10:30 AM Digital signal processing – 2
Dr. Mohit Law
10:30 – 11:00
AM
High Tea
11:00 – 12:30
AM
Modal parameter extraction
Dr. Mohit Law
12:30 – 2:00 PM Lunch Break
2:00 – 3:30 PM Lab 2
3:30 – 4:00 PM Tea Break
4:00 – 5:00 PM Lab 2
5:00 – 6:30 PM Dr. Shakti Gupta
Day-4, September 20, Thursday
Time Event
9:00 – 10:30 AM Modal parameter extraction (residue)
Dr. Mohit Law
10:30 – 11:00
AM
High Tea
11:00 – 12:30
AM
Modal parameter extraction (time domain)
Dr. Suparno Mukhopadhyay
12:30 – 2:00 PM Lunch Break
2:00 – 3:30 PM Lab 3
3:30 – 4:00 PM Tea Break
4:00 – 5:30 PM Ground vibration testing of planes
Dr. Madhusudhan
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Day-5, September 21, Friday
Time Event
9:00 – 10:30 AM Modal analysis for continuous systems 1
Dr. Shakti Gupta
10:30 – 11:00
AM
High Tea
11:00 – 12:30
AM
Modal analysis for continuous systems 2
Dr. Shakti Gupta
12:30 – 2:00 PM Lunch Break
2:00 – 3:30 PM Lab 4
3:30 – 4:00 PM Tea Break
4:00 – 5:30 PM Open discussion/ Closure
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OUTCOME
This workshop encouraged solutions for testing, monitoring and diagnosis of
common vibration related problems found in Academia and in Industries.
Participants got familiar with theoretical and practical aspects of structural
dynamics
They were introduced to the ideas on how to develop the ability to plan for
experimental testing of structural vibrations
Participants had a better idea on how to solve their specific problem in this
area after attending the event.
Participants gained understanding of sensor and actuator selection and
placement
They got better understanding of the importance of digital signal processing
of measurements, and its impact on quality of measured data
Their ability to reconstruct mathematical models describing the structure
based on experimental modal analysis was improved.
After attending the workshop participants could appreciate role of modal
analysis in system identification, model updating, and condition monitoring.
Course Webpage http://www.teqipiitk.in/workshop/2018/modal-
analysis/
Pictures https://www.teqipiitk.in/image-gallery/wid/64
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SUMMARY of FACULTY FEEDBACK
Workshop
1. Clarity of communication about workshop
2. Organization of the sessions
Excellent73%
Good27%
Ordinary 0%
Excellent
Good
Ordinary
Excelllent91%
Good9%
Ordinary0%
Excelllent
Good
Ordinary
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3. Quality of Lectures
4. Effectiveness of discussions
Excellent45%Good
55%
Ordinary0%
Excellent
Good
Ordinary
Excellent45%Good
55%
Ordinary0%
Excellent
Good
Ordinary
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5. Effectiveness of learning experience
6. Workshop duration
Excellent17%
Good83%
Ordinary 0%
Excellent
Good
Ordinary
Appropriate45%Short
55%
Long0%
Appropriate
Short
Long
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7. Would you like to have more such sessions?
8. Would you like e-lectures by experts on special topics?
Definitely91%
Maybe 9%No
0%
Definitely
Maybe
No
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
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9. Suggest Specific topic that you would like additional expert lectures on
Non contact type micrometer
Flow induced vibrations
Random vibrations (any ground acceleration data )
Non- linear systems (2)
Tuned mass damper (1)
Recent trends in (3) vibration measurement Isolation
Finite element analysis modal analysis detailed lectures
Process- scheduling optimization and control
Statistical tools, software’s , optimization , tools and control
Effect of vibration of engine mounting in defect mode .
Finite element method , Manufacturing process , ECAP [ equal channel angular prosing]
10. Additional Suggestions
Computational analysis should also be included
Any session on Mat Lab based programming will help us
Try to solve 1 or 2 numerical class or give as assignment / problem sheet & later discuss them or give answers in PDF
or hard copy
The laboratory session should have more time than the theory session
Teaching
1. Do you have additional support for teaching (tutors, graders, teaching, assistants,
etc)?
Yes10%
No90%
Yes
No
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2. Do you give class projects for UG classes?
3. Do you give class projects for PG classes?
Yes90%
No10%
Yes
No
Yes100%
No0%
Yes
No
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4. Do you have sufficient resources for laboratory courses?
5. Is the library/journal/e-connection support adequate?
Yes0%
No100%
Yes
No
Sufficient25%
Inadequate75%
Sufficient
Inadequate
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6. Would you like to have common (TEQIP) repository of course material?
7. Would you like to visit IITK to participate in and develop course material (existing
or new)?
Definitely75%
Maybe25%
No0%
Definitely
Maybe
Definitely89%
Maybe11%
No0%
Definitely
Maybe
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8. Would you like to participate in creation of the repository material (course file/lab
Manuals/question bank etc.)?
9. How can IITK effectively help you prepare for teaching?
10. Which Subject do you teach?
Structural dynamics , machine foundation
Theory of machine
Dynamics of Machinery
Process control instrumentation, food engines
Food engg.
Definitely75%
Maybe25%
No0%
Definitely
Maybe
e-courses39%
Workshops44%
Content17%
None0%
e-courses
Workshops
Content
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Automotive Mechanics
Mechanics of M/C
11. What is average student to teacher ratio in your institute?
1:18
27:1
28:1
1:9
21:1
23:1
25:1
12. How TEQIP can improve your teaching?
Allow us to pursuer PhD from the IIT’s there by improving the quality of teacher internship will
improve the quality of students
After doing M.Tech from IIT, foreign us to do Ph.D from NIT’s is injustice with us
By arranging workshop
Collaborative research
Proper material for teaching for all the branches which is with is TEQIP – III recruitment process.
E- lecture of different closer
By providing the chance to enhance our academic education through P.hD enrolment in any IIT’s
Research
1. Would you like to visit an IIT for a short visit/internship/post-doctoral stint, if
offered (via TEQIP)?
Definitely90%
Maybe10%
No0%
Definitely
Maybe
No
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2. Would you like to share/use research infrastructure at IITK, if made available?
3. Would you like to conduct collaborative research with IITK faculty?
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
Definitely90%
Maybe10%
No0%
Definitely
Maybe
No
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4. Would you like lectures by experts (Indian and International) on niche research
areas/ topics?
5. Do you want special-topic conferences?
6. How can TEQIP help improve your research?
To help to develop dynamics lab at our institute (MMMUT,GKP)
By conducting these kind of workshops as well as making the labs accessible to all students
Help in setting labs for research work & providing adequate training
By providing access to IIT’s Lab
Definitely90%
Maybe10%
No0%
Definitely
Maybe
No
Yes100%
Maybe0%No0%
Yes
Maybe
No
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Conducting workshops on specials topics
Availability of central research facility at IIT Kanpur where faculties can come perform their research work.
Providing some special workshop on topic. Specific workshop.
By providing lab Assistant to our labs and providing workshop on laboratory sessions in premier Institute like IIT’s/
NIT’s and also providing workshop software use like A analysis, etc.
SUMMARY of INDUSTRY FEEDBACK
Workshop
1. Clarity of communication about workshop
2. Organization of the sessions
Excellent100%
Good0%
Ordinary 0%
Excellent
Good
Ordinary
Excelllent100%
Good0%
Ordinary0%
Excelllent
Good
Ordinary
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3. Quality of Lectures
4. Effectiveness of discussions
Excellent60%
Good40%
Ordinary0%
Excellent
Good
Ordinary
Excellent40%
Good60%
Ordinary0%
Excellent
Good
Ordinary
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5. Effectiveness of learning experience
6. Workshop duration
Excellent0%
Good100%
Ordinary 0%
Excellent
Good
Ordinary
Appropriate0%
Short40%
Long60%
Appropriate
Short
Long
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7. Would you like to have more such sessions?
8. Would you like e-lectures by experts on special topics?
Definitely100%
Maybe 0%No
0%
Definitely
Maybe
No
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
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9. Suggest Specific topic that you would like additional expert lectures on
Frequency responses for a automotive application
Study of any vibration standard
Structural failure of plastics in dynamic conditions
Composite structure failure
Explanation of industry standards like JIS 1601
Vibration standards for automobiles . eg. JIS1601 D
Engine order- which components at which order w.r. to engine frequency
Labs were good if would help a lot if at least discussion on the basis of lab was more interlined
Modal analysis in many FEM approach
Modal analysis for non linear materials
10. Additional Suggestions
Modal study by using approach
This is a topic, which has direct implication in industry. This workshop is of very short duration to
understand it completely. So, there must be short term courses of 15 days, one month or two month
for this course
And more examples from automotive industry
Share lecture material (ppt, videos of lecture delivered ) if possible. In future a workshop on motor
dynamics is organised it will help me and many.
Random vibrations (PSD) and its application, measurement
Teaching
1. Do you have additional support for teaching (tutors, graders, teaching, assistants,
etc)?
Yes0%
No100%
Yes
No
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2. Do you give class projects for UG classes?
3. Do you give class projects for PG classes?
Yes100%
No0%
Yes
No
Yes100%
No0%
Yes
No
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4. Do you have sufficient resources for laboratory courses?
5. Is the library/journal/e-connection support adequate?
Yes0%
No100%
Yes
No
Sufficient0%
Inadequate100%
Sufficient
Inadequate
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6. Would you like to have common (TEQIP) repository of course material?
7. Would you like to visit IITK to participate in and develop course material (existing
or new)?
Definitely100%
Maybe0%
No0%
Definitely
Maybe
Definitely100%
Maybe0%
No0%
Definitely
Maybe
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8. Would you like to participate in creation of the repository material (course file/lab
Manuals/question bank etc.)?
9. How can IITK effectively help you prepare for teaching?
Definitely100%
Maybe0%
No0%
Definitely
Maybe
e-courses34%
Workshops33%
Content33%
None0%
e-courses
Workshops
Content
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10. Which Subject do you teach?
Machine design, Dynamic of m/K
11. What is average student to teacher ratio in your institute?
20:1
12. How TEQIP can improve your teaching?
By providing resources and manpower.
Research
7. Would you like to visit an IIT for a short visit/internship/post-doctoral stint, if
offered (via TEQIP)?
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
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8. Would you like to share/use research infrastructure at IITK, if made available?
9. Would you like to conduct collaborative research with IITK faculty?
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
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10. Would you like lectures by experts (Indian and International) on niche research
areas/ topics?
11. Do you want special-topic conferences?
12. How can TEQIP help improve your research? Updating in laboratory.
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
Yes100%
Maybe0%No0%
Yes
Maybe
No
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SUMMARY of STUDENT FEEDBACK
Workshop
1. Clarity of communication about workshop
2. Organization of the sessions
Excellent100%
Good0%
Ordinary 0%
Excellent
Good
Ordinary
Excelllent100%
Good0%
Ordinary0%
Excelllent
Good
Ordinary
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3. Quality of Lectures
4. Effectiveness of discussions
Excellent100%
Good0%
Ordinary0%
Excellent
Good
Ordinary
Excellent78%
Good22%
Ordinary0%
Excellent
Good
Ordinary
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5. Effectiveness of learning experience
6. Workshop duration
Excellent78%
Good22%
Ordinary 0%
Excellent
Good
Ordinary
Appropriate44%Short
56%
Long0%
Appropriate
Short
Long
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7. Would you like to have more such sessions?
8. Would you like e-lectures by experts on special topics?
Definitely90%
Maybe 10%No
0%
Definitely
Maybe
No
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
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9. Suggest Specific topic that you would like additional expert lectures on
OMA Finite element updating
Detailed discussion on system identification techniques
Vibration in gear box
Vibration in prosthetic & orthotics devices
Manufacturing power plant automobile etc.
Structural vibrations with soli parts foundation dynamic of special proposes
How to co-relate of non-orthogonal non- homogeneous math is modal analysis
It’s more a kind of mechanical engg. Workshop
3-D Metal printing, random excitation
Modal parameter excretion , sub structuring
10. Additional Suggestions
More practical session can be included
Study the vibration in human muscle and now to reduce the noise
Visiting any power plant and manufacturing process eg. Gear mfg.
I need this kind of workshop for foundation dynamics Industry needs to solve complex problems
from interdisciplinary activities
Please put all details of course on main page of your site.
Lab sessions should be of more duration
Learning
13. Do you get enough class projects?
Yes100%
No0%
Yes
No
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14. Is the learning adequate?
15. Do you have sufficient resources for laboratory courses?
Yes100%
No0%
Yes
No
Yes87%
No13%
Yes
No
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16. Is the library/journal/e-connection support adequate?
17. Would you like to have common (TEQIP) repository of course material?
Sufficient83%
Inadequate17%
Sufficient
Inadequate
Definitely100%
Maybe0%
No0%
Definitely
Maybe
![Page 42: TEQIP Workshop on Modal Analysis: Theory in Practice · selection/placement considerations of sensors and actuators, and for system identification using modal parameter extraction](https://reader030.vdocuments.mx/reader030/viewer/2022041003/5ea5e97c7e89a50bf22a6a57/html5/thumbnails/42.jpg)
18. Would you like to visit IITK to attend specialized courses?
19. Would you like MOOCS/e-resources based courses?
Definitely100%
Maybe0%
No0%
Definitely
Maybe
Definitely100%
Maybe0%
No0%
Definitely
Maybe
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20. What is your area of specialization?
Structural engg., manufacturing , mechanical engg.
Medal parameter estimation of composite
Design of medical device (prosthetics & orthotics ) & machine tools
Structural dynamics / dynamics off share structure/ geo tech engg.
New generation bottom based structures
Model analysis system identification
More hands- on experience on modal analysis
21. How can TEQIP help improve your learning?
Putting lectures & specially laboratory experiments online
Organizing workshops & sheet tam courses where people working in normal field can interact
& share ideas
The TEQIP improve my learning by helping me to visit the vibration lab to do my experiment
TEQIP provided to me path for this course
Research
1. Would you like to visit an IIT for a short visit/internship/post-doctoral stint, if
offered (via TEQIP)?
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
![Page 44: TEQIP Workshop on Modal Analysis: Theory in Practice · selection/placement considerations of sensors and actuators, and for system identification using modal parameter extraction](https://reader030.vdocuments.mx/reader030/viewer/2022041003/5ea5e97c7e89a50bf22a6a57/html5/thumbnails/44.jpg)
2. Would you like to share/use research infrastructure at IITK, if made available?
3. Would you like to conduct collaborative research with IITK faculty?
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
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4. Would you like lectures by experts (Indian and International) on niche research
areas/ topics?
5. Do you want special-topic conferences?
6. How can TEQIP help improve your research?
Putting lectures & specially laboratory experiments online
If collaborative research with IITK faculties are possible
The TEQIP improve my research by improving the learning and helping me to get more
information in my based on area research
By learning in going higher order mathematics for vibration theory of SDOF/MDOF systems
Definitely100%
Maybe0%
No0%
Definitely
Maybe
No
Yes100%
Maybe0%No0%
Yes
Maybe
No