Ocean - Seakeeping & Manoeuvring

Overview

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COURSE OUTLINE:

Seakeeping: Regular water waves – definition of ship motions – single degree of freedom motions in regular waves – uncoupled heave, pitch and roll motions – coupled heave and pitch motions – irregular waves - description of long crested waves by 2D spectrum – ship motions in 2D irregular waves – description of short-crested sea – ship motions in 3D irregular waves – dynamic effects – deck- wetness, slamming, relative motions, sea-sickness etc. – added resistance in waves – roll stabilization

Manoeuvring: Types of directional stability - linear equations of motions in horizontal plane – hydrodynamic derivatives – stability index – standard manoeuvres – turning circle, zigzag, pullout and spiral manoeuvres – roll during turn – experimental determination of hydrodynamic derivatives – straight-line, rotating arm and PMM experiments – description of control surface (rudder) – control derivatives

Syllabus

Mod-01 Lec-01 Regular Water Waves - I.
Mod-01 Lec-02 Regular Water Waves - II.
Mod-01 Lec-03 Definition of Ship Motions and Encounter Frequency.
Mod-01 Lec-04 Single Degree of Freedom Motions in Regular Waves.
Mod-01 Lec-05 Uncoupled Heave,Pitch and Roll - I.
Mod-01 Lec-06 Uncoupled Heave,Pitch and Roll - II.
Mod-01 Lec-07 Uncoupled Heave,Pitch and Roll - III.
Mod-01 Lec-08 Uncoupled Heave,Pitch and Roll - IV.
Mod-01 Lec-09 Uncoupled Heave,Pitch and Roll - V.
Mod-01 Lec-10 Coupled Motions.
Mod-01 Lec-11 Irregular Waves.
Mod-01 Lec-12 Description of Irregular Waves by Spectrum.
Mod-01 Lec-13 Theoretical Wave Spectrum.
Mod-01 Lec-14 Ship Motion in Irregular Waves - I.
Mod-01 Lec-15 Ship Motion in Irregular Waves - II.
Mod-01 Lec-16 Ship Motion in Irregular Waves -III.
Mod-01 Lec-17 Description of Short-Crested Sea.
Mod-01 Lec-18 Motions in Short-Crested Sea.
Mod-01 Lec-19 Derived Responses & Dynamic Effects - I.
Mod-01 Lec-20 Derived Responses & Dynamic Effects - II.
Mod-01 Lec-21 Derived Responses and Dynamic Effects - III.
Mod-01 Lec-22 Seakeeping Considerations in Design.
Mod-01 Lec-23 manoeuvring: Introduction & Basic Equations.
Mod-01 Lec-24 Dynamic Equations of Motion - I.
Mod-01 Lec-25 Dynamic Equations of Motion - II.
Mod-01 Lec-26 Hydrodynamic Derivatives.
Mod-01 Lec-27 Controls-Fixed Stability.
Mod-01 Lec-28 Stability & Cotrollability: Definitive Manoeuvres.
Mod-01 Lec-29 Definitive Manoeuvres - I.
Mod-01 Lec-30 Definitive Manoeuvres - II.
Mod-01 Lec-31 Definitive Manoeuvres - III.
Mod-01 Lec-32 Non-Linear Equations of Motion.
Mod-01 Lec-33 Non-linear Equations & Model Tests.
Mod-01 Lec-34 Capative Model Tests and Experimental Determination of Hydrodynamic Derivatives.
Mod-01 Lec-35 PMM Tests - I.
Mod-01 Lec-36 PMM Tests - II.
Mod-01 Lec-37 Rudder and Control Surfaces -I.
Mod-01 Lec-38 Rudder & Control Surfaces - II.
Mod-01 Lec-39 Theoretical Determination of Hydrodynamic Derivatives - I.
Mod-01 Lec-40 Theoretical Determination of Hydrodynamic Derivatives - II.