High Speed Small Craft

Author: Peter Du Cane
Editor:
ISBN:
Size: 13,27 MB
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Power Prediction Modeling Of Conventional High Speed Craft

Author: Dejan Radojčić
Editor: Springer Nature
ISBN: 3030306070
Size: 19,37 MB
Format: PDF, ePub
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The proposed book addresses various power prediction methods, a principal design objective for high-speed craft of displacement, semi-displacement, and planing type. At the core of the power prediction methods are mathematical models based on experimental data derived from various high-speed hull and propeller series. Regression analysis and Artificial Neural Network (ANN) methods are used as extraction tools for this kind of models.The most significant factors for in-service power prediction are bare hull resistance, dynamic trim, and the propeller’s open-water efficiency. Therefore, mathematical modeling of these factors is a specific focus of the book. Furthermore, the book includes a summary of most of the power-prediction-relevant literature published in the last 50 years, and as such is intended as a reference overview of the best high-speed craft modeling practices.Once these mathematical models have been developed and validated, they can be readily programmed into software tools, thereby enabling the parametric analyses required for the optimization of a high-speed craft design. The proposed book is intended primarily for naval architects who design and develop various types of high-speed vessels (yachts, boats etc.), as well as for students who are interested in the design of fast vessels. The book includes useful Excel Macro Codes for the outlined mathematical models. Moreover, software for all considered models is provided.

Reflections On Power Prediction Modeling Of Conventional High Speed Craft

Author: Dejan Radojčić
Editor: Springer
ISBN: 3319948997
Size: 10,68 MB
Format: PDF, ePub
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This SpringerBrief focuses on modeling and power evaluation of high-speed craft. The various power prediction methods, a principal design objective for high-speed craft of displacement, semi-displacement, and planing type, are addressed. At the core of the power prediction methods are mathematical models for resistance and propulsion efficiency. The models are based on the experimental data of various high-speed hull and propeller series. The regression analysis and artificial neural network (ANN) methods are used as an extraction tool for this kind of mathematical models. A variety of mathematical models of this type are discussed in the book. Once these mathematical models have been developed and validated, they can be readily programmed into software tools, thereby enabling the parametric analyses required for the optimization of a high-speed craft design. This book provides the foundational reference for these software tools, and their use in the design of high-speed craft. High-speed craft are very different from conventional ships. Current professional literature leaves a gap in the documentation of best design practices for high-speed craft. This book is aimed at naval architects who design and develop various types of high-speed vessels.

Small Craft Design Guide

Author: Joseph G. Koelbel
Editor:
ISBN:
Size: 18,73 MB
Format: PDF
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High Speed Marine Craft

Author:
Editor:
ISBN: 1107090415
Size: 13,28 MB
Format: PDF, ePub
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Hydrodynamics Of High Speed Marine Vehicles

Author: Odd M. Faltinsen
Editor: Cambridge University Press
ISBN: 1139447939
Size: 20,66 MB
Format: PDF, ePub
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Hydrodynamics of High-Speed Marine Vehicles, first published in 2006, discusses the three main categories of high-speed marine vehicles - vessels supported by submerged hulls, air cushions or foils. The wave environment, resistance, propulsion, seakeeping, sea loads and manoeuvring are extensively covered based on rational and simplified methods. Links to automatic control and structural mechanics are emphasized. A detailed description of waterjet propulsion is given and the effect of water depth on wash, resistance, sinkage and trim is discussed. Chapter topics include resistance and wash; slamming; air cushion-supported vessels, including a detailed discussion of wave-excited resonant oscillations in air cushion; and hydrofoil vessels. The book contains numerous illustrations, examples and exercises.

The Aden Effect

Author: Claude G. Berube
Editor: Naval Institute Press
ISBN: 1612511104
Size: 15,72 MB
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Alpha team was gone, dead to a man. A few crewmen from Bravo team had been blown overboard. Stark reentered the pilothouse and checked the radio hoping to get out one last mayday, but the radio, like the crew, was dead…. Connor Stark was a pariah, a man without a country, a former naval officer whose career came to an unceremonious end after a court-martial resulted in a dishonorable discharge. At home and at peace in Scotland, he was determined to leave his past behind until murder, politics, and Middle East instability prompted his unexpected recall to active duty. . Set against a background of modern piracy in the Gulf of Aden, the story begins as the new American ambassador to Yemen, C. J. Sumner, is assigned to negotiate access to the oil fields off the island of Socotra and enlists Stark’s help countering pirates who are capturing ships at will off the Horn of Africa. Meeting with resistance to her diplomatic overtures, Sumner recruits Stark, who has become a mercenary after being dishonorably discharged, as her defense attaché, because he knows the region. When Stark sets up a meeting with the owner of a Yemeni shipping company and the ruling

The Naval Architecture Of Small Craft

Author: Douglas Phillips-Birt
Editor:
ISBN:
Size: 19,51 MB
Format: PDF, Mobi
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Wig Craft And Ekranoplan

Author: Liang Yun
Editor: Springer Science & Business Media
ISBN: 9781441900425
Size: 12,40 MB
Format: PDF, Docs
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In the last half-century, high-speed water transportation has developed rapidly. Novel high-performance marine vehicles, such as the air cushion vehicle (ACV), surface effect ship (SES), high-speed monohull craft (MHC), catamaran (CAT), hydrofoil craft (HYC), wave-piercing craft (WPC) and small water area twin hull craft (SWATH) have all developed as concepts, achieving varying degrees of commercial and military success. Prototype ACV and SES have achieved speeds of 100 knots in at calm con- tions; however, the normal cruising speed for commercial operations has remained around 35–50 knots. This is partly due to increased drag in an average coastal s- way where such craft operate services and partly due to limitations of the propulsion systems for such craft. Water jets and water propellers face limitations due to c- itation at high speed, for example. SWATH are designed for reduced motions in a seaway, but the hull form is not a low drag form suitable for high-speed operation. So that seems to lead to a problem – maintain water contact and either water propulsion systems run out of power or craft motions and speed loss are a problem in higher seastates. The only way to higher speed would appear to be to disconnect completely from the water surface. You, the reader, might respond with a question about racing hydroplanes, which manage speeds of above 200 kph. Yes, true, but the power-to-weight ratio is extremely high on such racing machines and not economic if translated into a useful commercial vessel.