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Courses » Risk and Reliability of offshore structures

Risk and Reliability of offshore structures

ABOUT THE COURSE
 Considering the importance of offshore structures, one has to recognize that there are other intrinsic uncertainties such as material properties, analysis methods, design procedures etc, which are addressed rationally. A detailed knowledge of reliability of offshore structures using probabilistic tools becomes need of the hour for both industry and academia. Offshore activities, on one hand, lead to increase in societal wealth, and, on the other hand, make society vulnerable to risks. An offshore engineer is usually accountable for the decisions that he takes. A hallmark of professionalism is to quantify the risks and benefits involved. The present course aims to introduce the basics of the structural reliability analysis procedures. The Registrants would benefit from the course by learning the basics of reliability-based design and principles underlying code calibration, which would provide the groundwork to embark upon research in this field. Key focus will be on safety and reliability issues of offshore facilities during analysis and design, inspection and planning.

INTENDED AUDIENCE
 Engg faculty, students & researchers
Core course for branches of engg at PG level
Elective course for branches of engg at UG level
Elective at Diploma level

PRE-REQUISITES
 UG/PG/Ph.D of all engg branches and PG of applied sciences; Diploma students can also register

INDUSTRIES THAT WILL VALUE THIS
 All academic institutes, all consultancy organizations like Technip, L&T, DNV etc.

706 students have enrolled already!!

COURSE INSTRUCTOR


Srinivasan Chandrasekaran 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. Seven 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 Six web-based courses namely: i) Dynamic analysis of ocean structures (Both MOODLE and NPTEL); ii) Ocean structures and materials; iii) Advanced marine structures; and iv) Health, safety & Management in offshore and petroleum engineering (Both MOODLE and NPTEL). 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.
COURSE LAYOUT

 Module 1:
Concepts of probability
Sampling statistics
Types of uncertainties
Modeling random variables like loads, material properties etc
Introduction to classical reliability theories
Error estimation

Module 2:
Levels of reliability
Reliability estimates
FOSM, AFOSM and application problems
Codes of practice of safety check
Reliability bounds of structural systems
Treatment of geometric variables
Probabilistic methods of code calibrations

Module 3:
Application to offshore structures
Stochastic process
Gaussian process
Risk assessment
Hazard identification
ETA, FTA
Risk modeling and Risk picture
Probabilistic risk assessment


Certification Exam

The exam is optional. Exams will be on 24 April 2016 and 30 April 2016.
Time: 2pm-5pm

Tentative list of exam cities: http://nptel.ac.in/noc/pdf/Exam%20City-list.pdf

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 of approximately Rs 1000 needs to be paid.

Certificate

Certificate will be given to those who register and write the exam. Certificate will have your name, photograph and the score in the final exam.

It will have the logos of NPTEL and IIT Madras. It will be e-verifiable at nptel.ac.in/noc.


SUGGESTED READING

 a) Text books:
1. Almond R.G. An extended example for testing graphical belief, Technical Report No. 6.1992.
2. Chakrabarti, S.K. 1990. Non-linear Method in Offshore Engineering, Elsevier Science Publisher, The Netherlands.
3. Chakrabarti, S.K. 1994. Offshore Structure Modeling: World Scientific, Singapore.
4. Chandrasekaran, S. and Bhattacharyya, S.K. 2011. Analysis and Design of Offshore Structures. HRD Center for Offshore and Plant Engineering (HOPE), Changwon National University, Republic of Korea, pp. 285.
5. Cowell RG, Dawid AP, Lauritzen SL, Spiegelhalter DJ. Probabilistic networks and expert systems. New York: Springer; 1999.
6. Gelman A, Carlin JB, Stern HS, Rubin DB. Bayesian data analysis. London: Chapman & Hall; 1995. p. 1-526.
7. Halder, A. and Mahaderan, S., “First order and Second order Reliability Method” Probabilistic Structural Mechanics Hand Book, Edited by C. (Raj) Sundararajan, Chapman and Hall, PP. 27-52, 1995.
8. Jensen FV. Bayesian networks and decision graphs. New York: Springer; 2001.
9. Pearl J. Probabilistic reasoning in intelligent systems. San Francisco, CA: Morgan Kaufmann; 1988.
10. Srinivasan Chandrasekaran. 2014. Advanced Theory on Offshore Plant FEED Engineering, Changwon National University Press, Republic of South Korea, pp. 237. ISBN:978-89-969792-8-9
11. Srinivasan Chandrasekaran. 2015. Advanced Marine structures, CRC Press, Florida, ISBN 9781498739689
12. Srinivasan Chandrasekaran. 2015. Dynamic analysis and design of ocean structures. Springer. ISBN: 978-81-322-2276-7.
13. Srinivasan Chandrasekaran. 2016a. Offshore structural engineering: Reliability and Risk Assessment. CRC Press, Florida, ISBN:978-14-987-6519-0 

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