Merchant Ship Stability

Merchant Ship Stability

1st Edition - December 3, 1985

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  • Author: A.R. Lester
  • eBook ISBN: 9781483102443

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Description

Merchant Ship Stability presents the theory and application of methods for maintaining ship stability. It serves as a textbook for deck officers and first year degree students. The book discusses the methods of Simpson's rules for measuring ship form, the principle of floatation, finding the position of the center of gravity, and the effect of the center of gravity of the vessel not being on the centerline, the effect of having liquids within the vessel which are free to move and the effect of suspending weights. Topics on the assessment of stability of large angles of heel, regulations about merchant vessel stability, and dry docking and grounding are provided as well. Deck officers and merchant marine students will find the book very useful.

Table of Contents


  • Preface

    Chapter 1 Ship Form and Measurement

    Objectives

    Definitions

    Relationships Between Dimensions

    Measurement of Area

    Examples

    Moments of Areas and Volumes and Centroids

    Application of Simpson's Rules

    Questions on Simpson's Rules

    Answers

    Chapter 2 Flotation

    Objectives

    Pressure

    Archimedes' Principle

    Principle of Floatation

    Displacement

    Tonne Per Centimetre Immersion

    Examples

    Definitions

    Load Lines

    Questions on Hydrostatics

    Answers

    Questions on Load Line

    Answers

    Chapter 3 Determination of Position of Centre of Gravity

    Objectives

    Position of Centre of Gravity Relative to Keel and Centre Line

    Shift of Weight

    Adding or Removing a Single Weight

    Questions on KG

    Answers

    Chapter 4 Conditions of Equilibrium

    Objectives

    Conditions of Equilibrium

    Stable Equilibrium for a Ship

    Neutral Equilibrium for a Ship

    Unstable Equilibrium for a Ship

    Assessment of Initial Stability

    Transverse Metacentre of a Box Shaped Vessel

    Examples

    BM for a Ship Shape

    Examples

    Questions on GM

    Answers

    Chapter 5 List and Free Surface

    Objectives

    List

    Examples

    Effect of Suspending Weights

    Questions on List

    Answers

    Free Surfaces

    Effect of Longitudinal Subdivision

    Effect of Transverse Subdivision

    Examples

    Questions on Free Surfaces

    Answers

    Calculation of Initial KG—The Inclining Test

    Examples

    Unresisted Rolling in Still Water

    Questions on Inclining Test

    Answers

    Increase in Draft Due to Heel

    References

    Chapter 6 Stability at Large Angles of Heel

    Objectives

    Form of GZ Curves

    Features of GZ Curve

    Dynamical Stability

    Stability Requirements Under Load Line Rules

    Conditions of Equilibrium From GZ Curves

    Effect of Form on GZ Curve

    Effect of Shifting Weights Within the Vessel

    Examples

    Grain

    Examples

    Heel Due to Wind Loading

    Examples

    Chapter 7 Calculation of Righting Level and Assessment of Stability

    Objectives

    KN Curves

    Examples

    Questions

    Answers

    Wall-Sided Vessels

    Angle of Loll

    List When GM0=0

    Examples

    Questions on Wall-Sided Formula

    Answers

    Simplified Stability Information

    Examples

    Questions

    Answers

    Chapter 8 Longitudinal Stability—Trim

    Objectives

    Definition of Trim

    Effect of Loading Or Discharging a Weight at the Centre of Flotation

    Change of Trim

    Distribution of Trim

    Examples

    Mean Draft

    Examples

    Change of Trim Due to Change in Density

    Examples

    Calculation of Trim when Handling Large Weights

    Examples

    Determination of Displacement (Draft Survey)

    Examples

    Questions on Trim

    Answers

    Chapter 9 Dry Docking and Grounding

    Objectives

    Dry Docking

    Assessment of Reduction in KM

    Assessment of Rise in Effective KG

    Examples

    Grounding

    Examples

    Questions on Dry Docking and Grounding

    Answers

    Chapter 10 Bilging

    Objectives

    Flooding and Stability

    Permeability

    Examples

    Bilging of a Midships Side Compartment

    Bilging of an End Compartment

    Examples

    Questions on Bilging

    Answers

    Chapter 11 Bending Moment, Shear Force and Torsion

    Objectives

    Shear and Bending

    Examples

    Effect of Waves

    Bending Stress and Shear Stress

    Calculations of Shear Force and Bending Moment

    Questions on Bending Moment and Shearing Force

    Answers

    Torsion

    Chapter 12 Squat Interaction and Turning

    Objectives

    Squat

    Interaction

    Turning

    Directional Stability

    Heel while Turning

    Index

Product details

  • No. of pages: 326
  • Language: English
  • Copyright: © Butterworth-Heinemann 1985
  • Published: December 3, 1985
  • Imprint: Butterworth-Heinemann
  • eBook ISBN: 9781483102443

About the Author

A.R. Lester

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