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Record Nr. |
UNINA9910457310403321 |
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Autore |
Watkinson John <1950-> |
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Titolo |
Art of the helicopter [[electronic resource] /] / John Watkinson |
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Pubbl/distr/stampa |
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Oxford ; ; Burlington, MA, : Elsevier Butterworth-Heinemann, 2004 |
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ISBN |
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1-280-96648-3 |
9786610966486 |
0-08-047203-6 |
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Descrizione fisica |
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1 online resource (405 p.) |
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Disciplina |
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Soggetti |
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Helicopters |
Helicopters - Aerodynamics |
Helicopters - Control systems |
Helicopters - Electric equipment |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Nota di contenuto |
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front cover; copyright; table of contents; front matter; Preface; Acknowledgements; body; 1 Introduction to rotorcraft; 1.1 Applications of the helicopter; 1.2 A short technical helicopter history; 1.3 Types of rotorcraft; 1.4 Rotor configurations; 1.5 The essential elements; 1.6 The airframe; 1.7 Engine and transmission; 1.8 The fuel system; 1.9 The landing gear; 1.10 Oleos and ground resonance; 1.11 The rotors; 1.12 The control system; 1.13 Electrical and hydraulic system; 1.14 Instruments and avionics; 2 Technical background; 2.1 Introduction to mechanics; 2.2 Mass and density |
2.3 Force and acceleration2.4 Strength and rigidity; 2.5 Resultants and components offorces; 2.6 Moments and couples; 2.7 Work,energy,power and momentum; 2.8 Efficiency; 2.9 Gases and the atmosphere; 2.10 Sound; 2.11 The mechanics ofoscillation; 2.12 The mechanics ofrotation; 2.13 Sidebands; 2.14 Fourier analysis; 2.15 Centrifugal and Coriolis forces; 2.16 Rotating masses and precession; 2.17 The gyroscope; 2.18 Piezo-electric and laser gyroscopes; 2.19 Feedback; 3 Introduction to helicopter dynamics; 3.1 Creating and controlling lift; 3.2 The centre of pressure; 3.3 The coefficient of lift |
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3.4 Collective control3.5 In the hover; 3.6 Forces on the blades; 3.7 Rotor coning; 3.8 Torque and thrust in rotors; 3.9 The rotor as an actuator; 3.10 Blade element theory; 3.11 Disc loading; 3.12 Figure of merit; 3.13 Blade twist and taper; 3.14 Swirl; 3.15 Vertical autorotation; 3.16 Tip loss and the vortex ring; 3.17Ground effect; 3.18 Cyclic control; 3.19 Basic manoeuvres; 3.20 In translational flight; 3.21 Inflow and coning roll; 3.22 Rotor H-force; 3.23 Blade stall and compressibility; 3.24 The speed limit; 3.25 Harmonic blade motion; 3.26 Sources of vibration; 3.27 Vibration control |
3.28 Harmonic pitch control3.29 Blade design; 4 Rotors in practice; 4.1 Introduction; 4.2 Why articulated rotors are used; 4.3 Axes galore; 4.4 Flapping; 4.5 Droop stops; 4.6Introduction to dragging; 4.7 Order of hinges; 4.8 Types of rotor head; 4.9 Zero-offset heads; 4.10 Dangers of zero-offset heads -negative g; 4.11 Rotor response; 4.12 Feathering; 4.13 Pitch control; 4.14 Cyclic trim; 4.15 Tilting heads; 4.16 Dragging dynamics; 4.17 Ground resonance; 4.18 Air resonance; 4.19 Dynamic rollover; 4.20 Some rotor head examples; 4.21 Blade construction; 4.22 Blade tracking; 4.23 Blade folding |
5 The tail5.1 Introduction; 5.2 Balancing the torque; 5.3 The conventional tail rotor; 5.4 Tail rotor location; 5.5 Tail rotor performance; 5.6 The tail plane; 5.7 The stabilator; 5.8 Fins; 5.9 The tail boom; 5.10 The fenestron; 5.11 NOTAR; 5.12 Tail rotor failure; 6 Engines and transmissions; 6.1 Introduction; 6.2 Choice of engine; 6.3 A piston-engine installation; 6.4 A turbine installation; 6.5 Correlators and governors; 6.6 The gasoline engine; 6.7 The ignition system; 6.8 The starter; 6.9 The oil system; 6.10 The carburettor; 6.11 Fuel injection; 6.12 The turbocharger |
6.13 Gasoline engine instruments |
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Sommario/riassunto |
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The modern helicopter is a sophisticated device which merges a surprising number of technologies together. This wide range of disciplines is one of the fascinations of the helicopter, but it is also makes a complete understanding difficult.Those searching for an understanding of the helicopter will find The Art of the Helicopter invaluable. John Watkinson approaches every subject associated with the helicopter from first principles and builds up in a clearly explained logical sequence using plain English and clear diagrams, avoiding unnecessary mathematics.Technical terms and |
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2. |
Record Nr. |
UNINA9910824470403321 |
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Titolo |
A companion to Chinese history / / edited by Michael Szonyi |
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Pubbl/distr/stampa |
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Chichester, West Sussex, England : , : Wiley-Blackwell, , 2017 |
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©2017 |
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ISBN |
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1-118-62457-2 |
1-118-62454-8 |
1-118-62458-0 |
1-118-62459-9 |
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Descrizione fisica |
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1 online resource (478 pages, map) |
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Collana |
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Wiley Blackwell Companions to World History Series |
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Disciplina |
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Soggetti |
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Història |
Historiografia |
Llibres electrònics |
China History |
China Historiography |
Xina |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Notes on Contributors -- Acknowledgments -- Chapter One Introduction Conventions -- Part I States of the Field: Chapter Two How Do We Know What We Know about Chinese History? -- Chapter Three Chinese History in China: The State of the Field (1980s-2010s) -- Chapter Four Chinese History in Japan: The State of the Field -- Chapter Five Chinese History in Europe: The State of the Field -- Chapter Six Chinese History in the Era of the China Dream -- Chapter Seven Chinese History in World History -- Part II Chronologies: Chapter Eight Early China in Eurasian History -- Chapter Nine Was Medieval China Medieval? (Post-Han to Mid-Tang) -- Chapter Ten A Tang–Song Turning Point -- Chapter Eleven Periods of Non-Han Rule -- Chapter Twelve Song to Qing: Late Imperial or Early Modern? -- Chapter Thirteen Nineteenth-Century China: The Evolution of American Historical Approaches -- Chapter Fourteen Republican History -- |
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Chapter Fifteen Rethinking the History of Maoist China -- Chapter Sixteen The Reform Era as History. |
Part III Themes and Approaches -- Chapter Seventeen Women, Gender, the Family, and Sexuality -- Chapter Eighteen History of Premodern Chinese Literature -- Chapter Nineteen Modern Chinese Literature -- Chapter Twenty The Environmental History of China: Past, Present, and Future -- Chapter Twenty-One Science, Technology, and Medicine -- Chapter Twenty-Two Legal History -- Chapter Twenty-Three Ethnicity, Nationalism, and Identity in the Study of Modern China -- Chapter Twenty-Four The Religious Core of Local Social Organization -- Chapter Twenty-Five Beyond the Great Divergence: Current Scholarship on the Economic History of Premodern China -- Chapter Twenty-Six Taiwan: Margin, Center, Node -- Chapter Twenty-Seven Chinese Migrations -- |
Chapter Twenty-Eight China in the World: Beyond the Tribute System -- Glossary of Selected Terms -- References -- Index. |
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Sommario/riassunto |
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A Companion to Chinese History presents a collection of essays offering a comprehensive overview of the latest intellectual developments in the study of China's history from the ancient past up until the present day. Covers the major trends in the study of Chinese history from antiquity to the present day. Considers the latest scholarship of historians working in China and around the world. Explores a variety of long-range questions and themes which serves to bridge the conventional divide between China's traditional and modern eras. Addresses China's connections with other nations and regions and enables non-specialists to make comparisons with their own fields. Features discussion of traditional topics and chronological approaches as well as newer themes such as Chinese history in relation to sexuality, national identity, and the environment. |
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