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E-grāmata: Theory and Design of Air Cushion Craft

(Shell International Exploration and Production, The Netherlands), (Professor and Deputy Chief Naval Architect, Marine Design & Research Institute of China (MARIC))
  • Formāts: PDF+DRM
  • Izdošanas datums: 26-May-2000
  • Izdevniecība: Butterworth-Heinemann Ltd
  • Valoda: eng
  • ISBN-13: 9780080519067
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  • Formāts: PDF+DRM
  • Izdošanas datums: 26-May-2000
  • Izdevniecība: Butterworth-Heinemann Ltd
  • Valoda: eng
  • ISBN-13: 9780080519067
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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

Papildus informācija

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
Preface xi
Acknowledgements xiii
Introduction to hovercraft
1(47)
Hovercraft beginnings
1(8)
ACV and SES development in the former UK
9(13)
ACV and SES development in the former USSR
22(3)
US hovercraft development
25(7)
ACV and SES development in China
32(7)
SES and ACV developments in the 1990s
39(2)
Applications for ACV/SES
41(4)
The future
45(1)
SES and ACV design
46(2)
Air cushion theory
48(36)
Introduction
48(2)
Early air cushion theory developments
50(5)
Practical formulae for predicting air cushion performance
55(11)
Static air chusion characteristics on a water surface
66(5)
Flow rate coefficient method
71(2)
The `Wave pumping' concept
73(3)
Calculation of cushion stability derivatives and damping coefficients
76(8)
Steady drag forces
84(52)
Introduction
84(1)
Classification of drag components
84(2)
Air cushion wave-making drag (Rw)
86(10)
Aerodynamic profile drag
96(1)
Aerodynamic momentum drag
96(1)
Differential air momentum drag from leakage under bow/stern seals
97(1)
Skirt drag
98(6)
Sidewall water friction drag
104(7)
Sidewall wave-making drag
111(4)
Hydrodynamic momentum drag due to engine cooling water
115(1)
Underwater appendage drag
115(2)
Total ACV and SES drag over water
117(4)
ACV skirt/terrain interaction drag
121(3)
Problems concerning ACV/SES take-off
124(6)
Effect of various factors on drag
130(6)
Stability
136(51)
Introduction
136(1)
Static transverse stability of SES on cushion
137(15)
SES transverse dynamic stability
152(11)
Calculation of ACV transverse stability
163(5)
Factors affecting ACV transverse stability
168(5)
Dynamic stability, plough-in and overturning of hovercraft
173(12)
Overturning in waves
185(2)
Trim and water surface deformation under the cushion
187(18)
Introduction
187(3)
Water surface deformation in/beyond ACV air cushion over calm water
190(7)
Water surface deformation in/beyond SES air cushion on calm water
197(3)
Dynamic trim of ACV/SES on cushion over calm water
200(5)
Manoeuvrability
205(27)
Key ACT and SES manoeuvrability factors
205(2)
Introduction to ACV control surfaces
207(10)
Differential equations of motion for ACV manoeuvrability
217(7)
Course stability
224(3)
ACV turning performance
227(5)
Design and analysis of ACV and SES skirts
232(41)
Introduction
232(3)
Development and state of the art skirt configuration
235(15)
Static geometry and analysis of forces acting on skirts
250(8)
Geometry and analysis of forces in double or triple bag stern skirts
258(2)
Geometry and forces for other ACV skirts
260(1)
Analysis of forces causing the tuck-under of skirts
261(6)
Skirt bounce analysis
267(3)
Spray suppression skirts
270(1)
Skirt dynamic response
271(2)
Motions in waves
273(69)
Introduction
273(6)
Transverse motions of SES in beam seas (coupled roll and heave)
279(15)
Longitudinal SES motions in waves
294(14)
Longitudinal motions of an ACV in regular waves
308(14)
Motion of ACV and SES in short-crested waves
322(2)
Plough-in of SES in following waves
324(4)
Factors affecting the seaworthiness of ACV/SES
328(14)
Model experiments and scaling laws
342(11)
Introduction
342(1)
Scaling criteria for hovercraft models during static hovering tests
343(5)
Scaling criteria for tests of hovercraft over water
348(4)
Summary scaling criteria for hovercraft research, design and tests
352(1)
Design methodology and performance estimation
353(24)
Design methodology
353(2)
Stability requirements and standards
355(8)
Requirements for damaged stability
363(1)
Requirements for seaworthiness
364(1)
Requirements for habitability
365(9)
Requirements for manoeuvrability
374(2)
Obstacle clearance capability
376(1)
Determination of principal dimensions of ACV/SES
377(28)
The design process
377(1)
Role parameters
378(1)
Initial weight estimate
379(5)
First approximation of ACV displacement (all-up weight), and estimation of weight in various groups
384(13)
Parameter checks for ACV/SES during design
397(2)
Determination of hovercraft principal dimensions
399(6)
Life system design
405(28)
Introduction
405(2)
Determination of air flow rate, pressure and lift system power
407(6)
Design of fan air inlet/outlet systems
413(7)
Lift fan selection and design
420(13)
Skirt design
433(25)
Introduction
433(1)
Skirt damage patterns
433(2)
Skirt failure modes
435(2)
Skirt loading
437(4)
Contact forces
441(1)
Selection of skirt material
442(5)
Selection of skirt joints
447(2)
Assembly and manufacturing technology for skirts
449(2)
Skirt configuration design
451(7)
Structural design
458(29)
ACV and SES structural design features
458(3)
External forces on hull-introduction to the strength calculation of craft
461(4)
Brief introduction to the structural calculation used in MARIC
465(2)
Calculation methods for strength in the former Soviet Union
467(6)
Safety factors
473(1)
Considerations for thickness of plates in hull structural design
474(2)
Hovercraft vibrations
476(11)
Propulsion system design
487(90)
Introduction
487(20)
Air propellers
507(8)
Ducted propellers and fans
515(5)
Marine propellers
520(16)
Water jets
536(28)
Power transmission
564(10)
Surface contact propulsion
574(3)
Power unit selection
577(35)
Introduction
577(8)
Powering estimation
585(3)
Diesel engines
588(8)
Gas turbines
596(8)
General design requirements
604(2)
Machinery space layout
606(1)
Systems and controls
607(1)
Operation and maintenance
607(5)
References 612(6)
Index 618