Theory And Design Of Air Cushion Craft

Author: Liang Yun
Publisher: Elsevier
ISBN: 9780080519067
Size: 79.71 MB
Format: PDF
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This definitive text describes the theory and design both of Air Cushion Vehicles (ACV) and Surface Effect Ships (SES). It begins by introducing hovercraft types and their development and application throughout the world in the last three decades, before going on to discuss the theoretical aspects of ACV and SES craft covering their hovering performance, dynamic trim over calm water, resistance, stability, manoeuvrability, skirt configuration and analysis of forces acting on the skirts, ACV and SES seakeeping, and the methodology of scaling aerodynamic and hydrodynamic forces acting on the ACV/SES from model test data. The latter chapters describe a design methodology, including design criteria and standard methods for estimating craft performance, lift system design, skirt design, hull structure, propulsion systems and power unit selection. Much technical information, data, and references to further work on hovercraft and SES design is provided. The book will be a useful reference to engineers, technicians, teachers, students (both undergraduate and postgraduate), operators etc. who are involved in ACV/SES research, design, construction and operation. Guides the reader on how to perform machinery and systems selection within ACV and SES overall design For teachers, students (both at under- and post-graduate level), engineers and technicians involved in ACV/SES

Wig Craft And Ekranoplan

Author: Liang Yun
Publisher: Springer Science & Business Media
ISBN: 9781441900425
Size: 40.21 MB
Format: PDF, ePub, Mobi
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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.

Introduction To Radio Control Hovercraft

Author: Kevin Jackson
Publisher:
ISBN: 9780975341414
Size: 49.54 MB
Format: PDF, ePub
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For the first time, this comprehensive tutorial brings together all the information required to design and build a successful radio controlled Hovercraft model. The book introduces the construction of Hovercraft models and the concept of their operation. Written by two leading authorities in RC Hovercraft design, Kevin Jackson and Mark Porter take you through both the theoretical and practical aspects of the design and construction process. Covering design, construction techniques, materials, motor selection, radio systems, electrical wiring and craft operation it addresses some of the common difficulties experienced by newcomers to RC Hovercraft.

Basic Ship Theory

Author: KJ Rawson
Publisher: Elsevier
ISBN: 0080499856
Size: 33.45 MB
Format: PDF
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Rawson and Tupper's Basic Ship Theory, first published in 1968, is widely known as the standard introductory text for naval architecture students, as well as being a useful reference for the more experienced designer. The fifth edition continues to provide a balance between theory and practice. Volume 1 discusses ship geometry and measurement in its more basic concepts, also covering safety issues, structural strength, flotation, trim and stability. Both volumes feature the importance of considering the environment in design. Basic Ship Theory is an essential tool for undergraduates and national vocational students of naval architecture, maritime studies, ocean and offshore engineering, and will be of great assistance to practising marine engineers and naval architects. Brand new edition of the leading undergraduate textbook in Naval Architecture Provides a basis for more advanced theory Over 500 examples, with answers

The Maritime Engineering Reference Book

Author: Anthony F. Molland
Publisher: Elsevier
ISBN: 9780080560090
Size: 73.24 MB
Format: PDF, ePub, Mobi
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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

High Performance Marine Vessels

Author: Liang Yun
Publisher: Springer Science & Business Media
ISBN: 1461408695
Size: 38.49 MB
Format: PDF, ePub, Docs
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High Performance Marine Vessels (HPMVs) range from the Fast Ferries to the latest high speed Navy Craft, including competition power boats and hydroplanes, hydrofoils, hovercraft, catamarans and other multi-hull craft. High Performance Marine Vessels covers the main concepts of HPMVs and discusses historical background, design features, services that have been successful and not so successful, and some sample data of the range of HPMVs to date. Included is a comparison of all HPMVs craft and the differences between them and descriptions of performance (hydrodynamics and aerodynamics). Readers will find a comprehensive overview of the design, development and building of HPMVs.

Hydrodynamics Of High Speed Marine Vehicles

Author: Odd M. Faltinsen
Publisher: Cambridge University Press
ISBN: 1139447939
Size: 72.68 MB
Format: PDF, Kindle
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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.

Hovercraft Technology Economics And Applications

Author: J.R. Amyot
Publisher: Elsevier
ISBN: 1483290859
Size: 68.17 MB
Format: PDF, Kindle
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The amphibious versatility, marine speed and low footprint pressure have given the hovercraft a role in specialized applications. Among them are search and rescue, emergency medical services, military and arctic operations, icebreaking, patrol, law enforcement, ferries, and recreational activities such as racing. To meet these demands, the hovercraft has undergone considerable development since its inception. A comprehensive and timely review of the analysis, design, operation, economics and applications of hovercraft is presented in this volume by a team of highly qualified experts. The topics covered range from first principles to the state-of-the-art, with extensive references to current literature. The overall presentation is intended not to exceed the final year level of undergraduate engineering. The introduction and summary sections of all chapters are intended to give a qualitative grasp of the material covered without having to read all the technical portions. In varying degrees, the volume will appeal to managers, decision-support staff, operators, technologists, undergraduate students, and anyone entering the hovercraft field or seeking an introduction to it. It will also be of interest to design engineers, researchers and graduate students. Thus, this volume can serve as an up-to-date reference on several important aspects of hovercraft for a wide range of readers.

Soviet And Russian Ekranoplans

Author: Sergey Komissarov
Publisher: Crecy Pub
ISBN: 9781857803327
Size: 15.58 MB
Format: PDF, Mobi
View: 6919
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Over the years, many new developments have taken place in this particular strand of aviation, both in Russia and in other countries. New projects have emerged; some of them have been built and tested in prototype form, while others represent prospective studies awaiting their implementation. This brilliant book examines many of these new projects, as well as revealing new information of historical character that has become available in the recent years. Beginning with a brief outline of the basic concept of wing-in-ground effect (WIG) vehicles or ekranoplans, further chapters provide a short review of the development of this concept from theory to viable technical solutions. This section of the book also gives a historical survey of the development of WIG research and construction in Russia (the Soviet Union) on the background of the country's industrial and political development. Problems associated with the incorporation of WIG vehicles into the existing system of world transport are also be dealt with at some length. A large part of the book focuses upon the type-by-type description of specific designs of ekranoplans developed in the Soviet Union and present-day Russia in the course of half a century. Special emphasis is put upon the activities of Rostislav Alekseyev, who has played an enormous role in the development of this new technology. WIG vehicles created by the Alekseyev-led design bureau include the KM-1, dubbed the 'Caspian Monster', the Orlyonok and the Loon' ekranoplans which remain unsurpassed to this day in terms of size and payload. Other special chapters deal with ekranoplans developed in several other major design bureaux, notably those led by Sukhoi, Bartini and Beriyev. Research into WIG vehicle technology was pursued in the Soviet Union both by well-established scientific institutions and by enthusiasts, especially within aeronautical colleges by members of the so-called student design bureaux. This had produced a large number of projects and real prototypes. As distinct from the progeny of the 'big' design bureaux, the machines created by enthusiasts were modest in size, often in the category of ultra-light aircraft. These designs are also described individually. Finally, economic and political transformations following the break-up of the Soviet Union led to the emergence of privately owned design bureaux engaged in the design of aircraft and, in some cases, of ekranoplans. It is these firms that are pursuing the development of WIG craft in Russia now, given the apparent lack of interest on the part of the military and the State to this branch of transport technology. Packed with a variety of artwork and drawings, there will also be detailed descriptions of rare designs developed by private firms. Other highlights include examples of similar technology developed in other countries of the world including USA, Germany, China. This is the definitive volume on the subject and will be eagerly awaited by aviation enthusiasts worldwide.