Sound and Structural Vibration

By Prof. Venkata R. Sonti | IISc Bangalore

Learners enrolled: 315

About the Course:

The course teaches how vibrating structures radiate sound. The student intending to take the course must have a good background in vibrations of continuous systems (like plates and shells) and acoustics. The course involves mathematical derivations and physical explanations. The material and homeworks will involve solving problems from current journal papers.

INTENDED AUDIENCE: PhD students only
PREREQUISITES: A fundamental course in acoustics and a course in vibrations of continuous systems are definite pre-requisites.
INDUSTRY SUPPORT: Automobile, refrigeration and air-conditioning, all types of manufacturing industries, ship and submarine building companies, aircraft industry, washing machine industry.

Summary

Course Status :	Completed
Course Type :	Elective
Duration :	12 weeks
Category :	Mechanical Engineering
Credit Points :	3
Level :	Postgraduate
Start Date :	24 Jan 2022
End Date :	15 Apr 2022
Enrollment Ends :	07 Feb 2022
Exam Date :	24 Apr 2022 IST

Note: This exam date is subjected to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week 1: Introduction to Waves

Week 2: The coupled roots and the physics

Week 3: The coupled sound and vibration field

Week 4: The 2-D structural-acoustic waveguide

Week 5: Closed form derivations of coupled waves

Week 6: Vibrating rectangular plate backed by a cavity

Week 7: Sound radiation from a rectangular plate set in a baffle.

Week 8: Sound radiation from a baffled plate contd.

Week 9: Radiation resistance defined by Maidanik

Week 10: Transmission of sound through vibrating plates
Week 11: Structural acoustics in cylindrical geometry
Week 12: Fluid loading phenomenon in structural acoustics

Books and references

1.Sound and Structural Vibration by F. Fahy and Paolo Gardonio

2.Sound, Structure and their Interaction by Miguel Junger and David Feit.

3.Structure Borne Sound by L. Cremer and M. Heckl

Instructor bio

Prof. Venkata R. Sonti

IISc Bangalore

Prof. Venkata Sonti has a Ph.D. from Purdue University (Herrick labs., 1994) with a specialization in acoustics and vibrations. He has been a faculty at the Indian Institute of Science since 1999 in the Dept. of Mechanical Engineering. He has been conducting research and teaching courses in vibrations, acoustics, linear and nonlinear sound-structure interaction for the last 22 years.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.

The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).

Date and Time of Exams: 24 April 2022 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.

Registration url: Announcements will be made when the registration form is open for registrations.

The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.

Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.

Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup. It will have the logos of NPTEL and IISc Bangalore .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team