TEQIP Workshop on Modal Analysis: Theory in Practice · selection/placement considerations of sensors and actuators, and for system identification using modal parameter extraction

KNOWLEDGE INCUBATION FOR TEQIP

IIT KANPUR

TEQIP Workshop on Modal Analysis: Theory in Practice September 17-21, 2018

More Pictures: Here

https://www.teqipiitk.in/image-gallery/wid/64

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

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

http://home.iitk.ac.in/~ssgupta/

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

STATEWISE PARTICIPATION

UP22%

Gujrat5%

Jammu & Kashmir

10%

Maharashtra10%

Bihar20%

Jharkhand3%

Madhya Pradesh

2%

Chennai5%

Uttarakhand 7%

Kerela2%

Odisha2%

Haryana10%

Karnataka2%

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


2:00 – 3:30 PM Digital signal processing – 1

Dr. Mohit Law


4:00 – 5:30 PM Lab 1

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


2:00 – 3:30 PM Lab 2


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


2:00 – 3:30 PM Lab 3


4:00 – 5:30 PM Ground vibration testing of planes

Dr. Madhusudhan

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


2:00 – 3:30 PM Lab 4


4:00 – 5:30 PM Open discussion/ Closure

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

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

3. Quality of Lectures

4. Effectiveness of discussions

Excellent45%Good

55%

Ordinary0%

Excellent

Good

Ordinary

Excellent45%Good

55%

Ordinary0%

Excellent

Good

Ordinary

5. Effectiveness of learning experience

6. Workshop duration

Excellent17%

Good83%

Ordinary 0%

Excellent

Good

Ordinary

Appropriate45%Short

55%

Long0%

Appropriate

Short

Long

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

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

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

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

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

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

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

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

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

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



Excellent100%

Good0%

Ordinary 0%

Excellent

Good

Ordinary

Excelllent100%

Good0%

Ordinary0%

Excelllent

Good

Ordinary



Excellent60%

Good40%

Ordinary0%

Excellent

Good

Ordinary

Excellent40%

Good60%

Ordinary0%

Excellent

Good

Ordinary



Excellent0%

Good100%

Ordinary 0%

Excellent

Good

Ordinary

Appropriate0%

Short40%

Long60%

Appropriate

Short

Long



Definitely100%

Maybe 0%No

0%

Definitely

Maybe

No

Definitely100%

Maybe0%

No0%

Definitely

Maybe

No


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


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

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



Yes0%

No100%

Yes

No

Sufficient0%

Inadequate100%

Sufficient

Inadequate


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

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

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



Definitely100%

Maybe0%

No0%

Definitely

Maybe

No



Definitely100%

Maybe0%

No0%

Definitely

Maybe

No

Definitely100%

Maybe0%

No0%

Definitely

Maybe

No


areas/ topics?


12. How can TEQIP help improve your research? Updating in laboratory.

Definitely100%

Maybe0%

No0%

Definitely

Maybe

No

Yes100%

Maybe0%No0%

Yes

Maybe

No

SUMMARY of STUDENT FEEDBACK

Workshop



Excellent100%

Good0%

Ordinary 0%

Excellent

Good

Ordinary

Excelllent100%

Good0%

Ordinary0%

Excelllent

Good

Ordinary



Excellent100%

Good0%

Ordinary0%

Excellent

Good

Ordinary

Excellent78%

Good22%

Ordinary0%

Excellent

Good

Ordinary



Excellent78%

Good22%

Ordinary 0%

Excellent

Good

Ordinary

Appropriate44%Short

56%

Long0%

Appropriate

Short

Long



Definitely90%

Maybe 10%No

0%

Definitely

Maybe

No

Definitely100%

Maybe0%

No0%

Definitely

Maybe

No


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


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

14. Is the learning adequate?


Yes100%

No0%

Yes

No

Yes87%

No13%

Yes

No



Sufficient83%

Inadequate17%

Sufficient

Inadequate

Definitely100%

Maybe0%

No0%

Definitely

Maybe

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

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



Definitely100%

Maybe0%

No0%

Definitely

Maybe

No



Definitely100%

Maybe0%

No0%

Definitely

Maybe

No

Definitely100%

Maybe0%

No0%

Definitely

Maybe

No


areas/ topics?


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

Documents

TEQIP Workshop on Modal Analysis: Theory in Practice · selection/placement considerations of sensors and actuators, and for system identification using modal parameter extraction