Studies Of Ship Maneuvering Response To Propeller And Rudder Actions
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Studies Of Ship Maneuvering Response To Propeller And Rudder Actions
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Author :
language : en
Publisher:
Release Date : 1965
Studies Of Ship Maneuvering Response To Propeller And Rudder Actions written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with categories.
An attempt is made to extend ship-maneuvering analysis for application at low ship speeds. Captive-model experiments are made to investigate effects of non-equilibrium propeller speeds on rudder force and effective thrust. Other experiments are made to explore first-order effects of very large drift angles and pure yaw rotation on hull hydrodynamic reactions. The experimental results, together with previous rotating-arm data, are applied in motion equations, accounting for both extreme propeller actions and the occurrence of large drift angles and turning rates. Also included are propulsion and rudder time lags, and the influence of uniform water current on ship trajectory. The equations are programmed for computation, and ship response to a simple docking maneuver is predicted. The computation is repeated several times to examine sensitivity of ship motions and trajectory to variations of operating parameters, namely, maximum reverse propeller speed, engine response time, and water-current direction.
Response Of Slowly Moving Ship To Propeller And Rudder Actions
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Author : C. Lincoln Crane (Jr)
language : en
Publisher:
Release Date : 1966
Response Of Slowly Moving Ship To Propeller And Rudder Actions written by C. Lincoln Crane (Jr) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with categories.
An attempt is made to extend ship maneuvering analysis for application at low ship speeds. Experiments are made with captive-model to investigate effects of non-equilibrium propeller speeds on rudder force and effective thrust. Other experiments are made to explore first-order effects of very large drift angles and pure yaw rotation on hull hydrodynamic reactions. The experimental results, together with previous rotating-arm data, are applied in motion equations, accounting for both extreme propeller actions and the occurrence of large drift angles and turning rates. Also included are propulsion and rudder time lags, and the influence of uniform water-current on ship trajectory. The equations are programmed for computation, and ship response to a simple docking maneuver is predicted. The computation is repeated several times to examine sensitivity of ship motions and trajectory to variations of operating parameters; namely, maximum reverse propeller-speed, engine response time, and water-current direction. (Author).
Background And Review Of Ship Maneuvering Response Experiments
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Author : W. McIlroy
language : en
Publisher:
Release Date : 1982
Background And Review Of Ship Maneuvering Response Experiments written by W. McIlroy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Pilots and pilotage categories.
Response Of Slowly Moving Ship To Propeller And Rudder Actions
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Author : C. Lincoln Crane
language : en
Publisher:
Release Date : 1966
Response Of Slowly Moving Ship To Propeller And Rudder Actions written by C. Lincoln Crane and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Ships categories.
Maneuvering Response
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Author : P. Aranow
language : en
Publisher:
Release Date : 1983
Maneuvering Response written by P. Aranow and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Inland navigation categories.
Technical Abstract Bulletin
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Author : Defense Documentation Center (U.S.)
language : en
Publisher:
Release Date : 1967
Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Science categories.
A Comparison Of Ship Maneuvering Characteristics For Rudders And Podded Propulsors
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Author : Michelle K. Betancourt
language : en
Publisher:
Release Date : 2003
A Comparison Of Ship Maneuvering Characteristics For Rudders And Podded Propulsors written by Michelle K. Betancourt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Marine engineering categories.
A comparison of a high speed container ship using a rudder versus a podded propulsor is made to study replacing a rudder with a pod. A mathematical model is altered to simulate a ship operating with a rudder and with a pod to maneuver. The model incorporates the nonlinear maneuvering equations and couples the surge and sway forces, yaw and roll moment, and the roll angle induced during a steady turn with varying rudder and pod angles. The model uses the hydrodynamic derivatives and coefficients for a high speed container ship. The equations are numerically integrated in order to predict the roll angle, sway and surge velocities, and the ship's position in the xy-plane. Both transient and steady state results are utilized to quantify the relative efficiency of each system. The results are used as a preliminary study into replacing a rudder on a ship with a podded propulsor. The results indicate that the ship responds faster and has a shorter turning radius with the pod at lower initial speeds and pod angles, while the rudder responds better at high speeds regardless of angle. Further research is necessary to study the effects of changing the pod's position and increasing the number of pods used.
Hydrodynamics In The Ocean Environment
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Author : Milton Spinoza Plesset
language : en
Publisher:
Release Date : 1972
Hydrodynamics In The Ocean Environment written by Milton Spinoza Plesset and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Hydrodynamics categories.
Ship Maneuvering Response
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Author : William McIlroy
language : en
Publisher:
Release Date : 1983
Ship Maneuvering Response written by William McIlroy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with categories.
The Maritime Engineering Reference Book
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Author : Anthony F. Molland
language : en
Publisher: Elsevier
Release Date : 2011-10-13
The Maritime Engineering Reference Book written by Anthony F. Molland and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-10-13 with Technology & Engineering categories.
The Maritime Engineering Reference Book is a one-stop source for engineers involved in marine engineering and naval architecture. In this essential reference, Anthony F. Molland has brought together the work of a number of the world's leading writers in the field to create an inclusive volume for a wide audience of marine engineers, naval architects and those involved in marine operations, insurance and other related fields. Coverage ranges from the basics to more advanced topics in ship design, construction and operation. All the key areas are covered, including ship flotation and stability, ship structures, propulsion, seakeeping and maneuvering. The marine environment and maritime safety are explored as well as new technologies, such as computer aided ship design and remotely operated vehicles (ROVs).Facts, figures and data from world-leading experts makes this an invaluable ready-reference for those involved in the field of maritime engineering.Professor A.F. Molland, BSc, MSc, PhD, CEng, FRINA. is Emeritus Professor of Ship Design at the University of Southampton, UK. He has lectured ship design and operation for many years. He has carried out extensive research and published widely on ship design and various aspects of ship hydrodynamics. * A comprehensive overview from best-selling authors including Bryan Barrass, Rawson and Tupper, and David Eyres* Covers basic and advanced material on marine engineering and Naval Architecture topics* Have key facts, figures and data to hand in one complete reference book