Swayam Central

Dynamics of Ocean Structures

By Prof. Srinivasan Chandrasekaran   |   IIT Madras
The course will give a brief overview of different types of ocean structures that are deployed in sea for exploiting oil, gas and minerals. While fundamentals of structural dynamics are discussed, detailed mathematical modeling of ocean structures and their dynamic analysis under waves, wind and current are highlighted with special emphasis to fluid-structure interaction. Introduction to stochastic dynamics of ocean structures is also discussed with lot of tutorials and sample papers that shall intuit self-learning through the course. Focus is on the explanation of fundamental concepts as addressed to graduate students..

INTENDED AUDIENCE       : Any interested learners.

Learners enrolled: 353


Course Status : Upcoming
Course Type : Core
Duration : 12 weeks
Start Date : 20 Jul 2020
End Date : 09 Oct 2020
Exam Date : 18 Oct 2020
Enrollment Ends : 27 Jul 2020
Category :
  • Ocean Engineering
  • Level : Undergraduate/Postgraduate
    This is an AICTE approved FDP course


    Week 1:  Introduction to offshore structures
            Environmental loads
    Structural action

    Week 2:  Single degree-of-freedom
    Equation of motion
    Free vibration of SDOF systems

    Week 3:  Damped and undamped forced vibration
    Damped forced vibration
    Response build up

    Week 4:  Numerical examples
    Numerical examples- MDOF

    Week 5:  Eigen value problems
    Orthogonality of modes
    Numerical methods in MDOF

    Week 6:  Influence coefficient method
    Stodla method
    Rayleigh method
    Modal response of MDOF

    Week 7:  Rayleigh damping
    Caughey damping
    Damping by super-positioning
    Duhamel integral
    Model super position and Truncation
    Missing mass correction

    Week 8:  Fluid structure interaction
    Retrofitting and Rehabilitation
    Earthquake forces

    Week 9:  Articulated towers
    Fluid structure interaction application in ocean structures
    Response control of compliant structures (MLAT)
    MLAT with passive damperss

    Week 10: Tension leg platforms
    Fluid-structure interaction
    Dynamic analysis for springing and ringing

    Week 11: Numerical integration
    Dynamic analysis offshore triceratops
    Stochastic process

    Week 12: Response spectrum
    Return period
    Fatigue damage




    Prof. Srinivasan Chandrasekaran

    IIT Madras
    Srinivasan Chandarsekaran is currently a Professor in the Dept. of Ocean Engineering, Indian Institute of Technology Madras, India. He has teaching, research and industrial experience of about 23 years during which he has supervised many sponsored research projects and offshore consultancy assignments both in India and abroad. His active areas of research include dynamic analysis and design of offshore platforms, Development of geometric forms of complaint offshore structures for ultra-deep water oil exploration and production, sub-sea engineering, Rehabilitation and retrofitting of offshore platforms, structural health monitoring of ocean structures, seismic analysis and design of structures and risk analyses and reliability studies of offshore and petroleum engineering plants. He has been also a visiting fellow under the invitation of Ministry of Italian University Research to University of Naples Federico II, Italy for a period of two years during which he conducted research on advanced nonlinear modelling and analysis of structures under different environmental loads with experimental verifications. He has about 110 research publications in International journals and refereed conferences organized by professional societies around the world. Four text books authored by him are quite popular amongst graduate students of civil and ocean engineering and recommended as reference material for class room studies and research as well. He also delivered four web-based courses namely: i) Dynamic analysis of ocean structures; ii) Ocean structures and materials; iii) Advanced marine structures; and iv) Health, safety and Management in offshore and petroleum engineering. He is a member of many National and International professional bodies and delivered many invited lectures and key note address in the international conferences, workshops and seminars in India and abroad.


    • 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: 18th October 2020, 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.

    • 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

    • 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 IIT Madras. It will be e-verifiable at nptel.ac.in/noc
    • Only the e-certificate will be made available. Hard copies will not be dispatched.