Dynamics of Ocean Structures

INTENDED AUDIENCE: Any interested learners.

COURSE OUTLINE: The course will give a brief overview of different types of ocean structures that are deployed in the 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 on fluid-structure interaction. Introduction to stochastic dynamics of ocean structures is also discussed with a lot of tutorials and sample papers that shall intuit self-learning through the course. The focus is on the explanation of fundamental concepts as addressed to graduate students.

ABOUT INSTRUCTOR: Prof. Srinivasan Chandrasekaran is an Assistant Professor of Ocean Engineering Department, IIT Madras.

Mod-01 Lec-01 Introduction to different types of ocean structures I.
Mod-01 Lec-02 Introduction to different types of ocean structures II.
Mod-01 Lec-03 Introduction to different types of ocean structures III.
Mod-01 Lec-04 Types of Compliant towers.
Mod-01 Lec-05 New Generation offshore and Coastal structures.
Mod-01 Lec-06 Environmental forces.
Mod-01 Lec-07 Wave forces, Current.
Mod-01 Lec-08 Introduction to Structural dynamics.
Mod-01 Lec-09 Characteristics of single degree - of- freedom model.
Mod-01 Lec-10 Methods of writing equation of motion.
Mod-01 Lec-11 Free and forced vibration of single degree - of - freedom systems.
Mod-01 Lec-12 Undamped and damped systems I.
Mod-01 Lec-13 Undamped and damped systems II.
Mod-01 Lec-14 Undamped and damped systems III.
Mod-01 Lec-15 Comparison of methods.
Mod-01 Lec-16 Examples.
Mod-01 Lec-17 Numerical problems in single degree - of - freedom systems.
Mod-01 Lec-18 Two degrees - of - freedom systems.
Mod-01 Lec-19 Eigenvalues and Eigenvectors.
Mod-01 Lec-20 Orthogonality of modes.
Mod-01 Lec-21 Study of Multi degrees - of - freedom systems.
Mod-01 Lec-22 Equations of motion.
Mod-01 Lec-23 Natural frequencies and mode shapes.
Mod-01 Lec-24 Stodla, Rayleigh - Ritz and influence coefficient methods, Dunkerley.
Mod-01 Lec-25 Continuous system.
Mod-02 Lec-01 Structural action of offshore structures.
Mod-02 Lec-02 Fluid - Structure interaction I.
Mod-02 Lec-03 Fluid - Structure interaction II Dynamic analysis of offshore jacket platforms.
Mod-02 Lec-04 Steps of analysis using software.
Mod-02 Lec-05 Steps of analysis using software (contd..).
Mod-02 Lec-06 Dynamic analysis of articulated towers.
Mod-02 Lec-07 Iterative frequency domain I.
Mod-02 Lec-08 Iterative frequency domain II.
Mod-02 Lec-09 Multi - legged articulated towers.
Mod-02 Lec-10 Response control of multi-legged articulated towers using tuned mass.
Mod-02 Lec-11 Development of Tension Leg Platforms and geometric optimization.
Mod-02 Lec-12 Dynamic analyses of TLPs.
Mod-02 Lec-13 Development of Mass, stiffness and damping matrices of TLP from first principles.
Mod-02 Lec-14 Estimate of classical damping.
Mod-02 Lec-15 TLPs under seismic excitation.
Mod-02 Lec-16 Direct Integration method.
Mod-02 Lec-17 Development of new generation offshore structures.
Mod-03 Lec-01 Introduction to stochastic dynamics of ocean structures.
Mod-03 Lec-02 Response spectrum.
Mod-03 Lec-03 Narrow band process.
Mod-03 Lec-04 Return period, Fatigue prediction.
Mod-03 Lec-05 Modal response method, Modal mass contribution.
Mod-03 Lec-06 Missing mass correction, Example problems.
Mod-03 Lec-07 Duhamel's integrals.