Ship Stabilizers

A Handbook for Merchant Navy Officers

1st Edition - January 1, 1966

Authors: W. Burger, A. G. Corbet

Editors: J. H. Clough-Smith, G. E. Earl

eBook ISBN:

9 7 8 - 1 - 4 8 3 1 - 8 0 9 3 - 9

Ship Stabilizers: The Design and Operation in Correcting the Rolling of Ships presents the working principles and operation of various types of gyrocompasses and automatic pilots.… Read more

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Ship Stabilizers: The Design and Operation in Correcting the Rolling of Ships presents the working principles and operation of various types of gyrocompasses and automatic pilots. This book discusses the fundamental principles of synchro systems and servomechanisms. Organized into 12 chapters, this book begins with an overview of the problem of the reduction of rolling. This text then explores the means of resisting rolling, which have been used or are still being used, including bilge keels, oscillating weights, anti-rolling tanks, gyroscopic stabilizers, and tilting fin systems. Other chapters consider the anti-rolling tanks that are divided into three types, including diversified tanks, free surface tanks, and U-tube tanks. This book discusses as well the small oscillations of a vessel in still water, which are simple harmonic in character. The final chapter deals with the stabilizing gear for smaller ships. This book is a valuable resource for marine engineers and naval architects.

PrefaceIntroduction—A Short Historical Review of Stabilizing Equipment up to the Present TimeChapter I—Rolling of Ships Rolling in Still Water Theory of Waves Rolling amongst Waves Rolling due to Yaw Measurements of Angles of RollChapter II—The Gyroscope Gyroscopic Inertia Precession Types of Gyroscopes Gyroscopic Angular AccelerometerChapter III—Anti-Rolling Devices in General Bilge Keels Oscillating Weights Anti-Rolling Tanks Sperry Gyro-Stabilizer Tilting Fin SystemChapter IV—Anti-Rolling Tanks Free Surface Tanks U-Tube Tanks Diversified TanksChapter V—Types of Stabilization in Tilting Fin Systems Simple Harmonic Motion Types of Stabilization Types of ControlsChapter VI—The Sensors and the Controlling Unit Synchros and Servomechanisms (Control Unit) Synchro Transmission Servomechanisms Summary Amplifying Devices (Control Unit) The Sensors ConclusionChapter VII—Denny-Brown Stabilizer Gyro and Control Unit The Fin Tilting Mechanism The Fin Extension and Retraction Mechanism SummaryChapter VIII—Denny-Brown AEG Stabilizer General Description The Fin Tilting Mechanism The Fin Rigging and Housing MechanismChapter IX—Denny-Brown Stabilizer Controls, Operation, Maintenance Controls Operation MaintenanceChapter X—Sperry Gyrofin General Description The Stabilization System The Control System Stabilizer Machinery The Hydraulic Circuit The Lubricating Oil System Addendum SummaryChapter XI—Sperry Gyrofin, Controls and Operation Controls Operation AddendumChapter XII—Stabilizers for Smaller Ships Gyro Control Unit and Hydraulic Amplifier Hydraulic Control for Fin Tilting The Fins or Fin Starting and Stopping Routine Inspections Hints on Maintenance Other Non-Retractable StabilizersAcknowledgments and Bibliography Acknowledgments BibliographyIndex