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Record Nr. |
UNINA9911007079203321 |
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Autore |
Johnson Wayne |
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Titolo |
Helicopter Theory |
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Pubbl/distr/stampa |
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Newburyport, : Dover Publications, 2012 |
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ISBN |
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0-486-13182-3 |
1-62198-653-5 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (1441 p.) |
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Collana |
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Dover Books on Aeronautical Engineering |
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Disciplina |
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Soggetti |
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Helicopters |
Mechanical Engineering |
Engineering & Applied Sciences |
Aeronautics Engineering & Astronautics |
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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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Description based upon print version of record. |
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Nota di contenuto |
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Title Page; Copyright Page; Table of Contents; ACKNOWLEDGMENTS; NOTATION; Chapter 1 - INTRODUCTION; 1-1 The Helicopter; 1-2 History; 1-3 Notation; Chapter 2 - VERTICAL FLIGHT I; 2-1 Momentum Theory; 2-2 Figure of Merit; 2-3 Extended Momentum Theory; 2-4 Blade Element Theory; 2-5 Combined Blade Element and Momentum Theory; 2-6 Hover Performance; 2-7 Vortex Theory; 2-8 Literature; Chapter 3 - VERTICAL FLIGHT II; 3-1 Induced Power in Vertical Flight; 3-2 Autorotation in Vertical Descent; 3-3 Climb in Vertical Flight; 3-4 Vertical Drag; 3-5 Twin Rotor Interference in Hover; 3-6 Ground Effect |
Chapter 4. - FORWARD FLIGHT I4-1 Momentum Theory in Forward Flight; 4-2 Vortex Theory in Forward Flight; 4-3 Twin Rotor Interference in Forward Flight; 4-4 Ground Effect in Forward Flight; Chapter 5 - FORWARD FLIGHT II; 5-1 The Helicopter Rotor in Forward Flight; 5-2 Aerodynamics of Forward Flight; 5-3 Rotor Aerodynamic Forces; 5-4 Power in Forward Flight; 5-5 Rotor Flapping Motion; 5-6 Examples of Performance and Flapping in Forward Flight; 5-7 Review of Assumptions; 5-8 Tip Loss and Root Cutout; 5-9 Blade Weight Moment; 5-10 Linear Inflow Variation; 5-11 Higher Harmonic Flapping Motion |
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5-12 Profile Power and Radial Flow5-13 Flap Motion with a Hinge Spring; 5-14 Flap Hinge Offset; 5 - 15 Hingeless Rotor; 5 - 16 Gimballed or Teetering Rotor; 5 - 17 Pitch-Flap Coupling; 5 - 18 Helicopter Force, Moment, and Power Equilibrium; 5 - 19 Lag Motion; 5 - 20 Reverse Flow; 5 - 21 Compressibility; 5 - 22 Tail Rotor; 5 - 23 Numerical Solutions; 5 - 24 Literature; Chapter 6 - PERFORMANCE; 6-1 Hover Performance; 6-2 Forward Flight Performance; 6-3 Helicopter Performance Factors; 6-4 Other Performance Problems; 6-5 Improved Performance Calculations; 6-6 Literature; Chapter 7 - DESIGN |
7-1 Rotor Types7-2 Helicopter Types; 7-3 Preliminary Design; 7-4 Helicopter Speed Limitations; 7-5 Autorotational Landings after Power Failure; 7-6 Helicopter Drag; 7-7 Rotor Blade Airfoil Selection; 7-8 Rotor Blade Profile Drag; 7-9 Literature; Chapter 8 - MATHEMATICS OF ROTATING SYSTEMS; 8 - 1 Fourier Series; 8 - 2 Sum of Harmonics; 8 - 3 Harmonic Analysis; 8 - 4 Fourier Coordinate Transformation; 8 - 5 Eigenvalues and Eigenvectors of the Rotor Motion; 8 - 6 Analysis of Linear, Periodic Systems; Chapter 9 - ROTARY WING DYNAMICS I; 9 - 1 Sturm-Liouville Theory; 9 - 2 Out-of-Plane Motion |
9 - 3 In-Plane Motion9 - 4 Torsional Motion; 9 - 5 Hub Reactions; 9 - 6 Shaft Motion; 9 - 7 Coupled Flap-Lag-Torsion Motion; 9 - 8 Rotor Blade Bending Modes; 9 - 9 Derivation of the Equations of Motion; Chapter 10 - ROTARY WING AERODYNAMICS I; 10-1 Lifting-Line Theory; 10-2 Two-Dimensional Unsteady Airfoil Theory; 10-3 Near Shed Wake; 10-4 Unsteady Airfoil Theory with a Time-Varying Free Stream; 10-5 Two-Dimensional Model for Rotary Wing Unsteady Aerodynamics; 10 - 6 Approximate Solutions for Rotary Wing Unsteady Aerodynamics; 10 - 7 Unsteady Airfoil Theory for the Rotary Wing |
10 - 8 Vortex-Induced Velocity |
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Sommario/riassunto |
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The history of the helicopter may be traced back to the Chinese flying top (c. 400 BC) and to the work of Leonardo da Vinci, who sketched designs for a vertical flight machine utilizing a screw-type propeller. In the late 19th-century, Thomas Edison experimented with helicopter models, realizing that no such machine would be able to fly until the development of a sufficiently lightweight engine. When the internal combustion gasoline engine came on the scene around 1900, the stage was set for the real development of helicopter technology.While this text provides a concise history of helicopter |
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2. |
Record Nr. |
UNINA9910959853303321 |
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Titolo |
Growing points in developmental science : an introduction / / edited by Willard W. Hartup and Rainer K. Silbereisen |
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Pubbl/distr/stampa |
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ISBN |
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1-135-42561-2 |
1-135-42562-0 |
1-280-14686-9 |
0-203-98926-0 |
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Edizione |
[1st ed.] |
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Descrizione fisica |
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1 online resource (385 p.) |
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Altri autori (Persone) |
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HartupWillard W |
SilbereisenR. K <1944-> (Rainer K.) |
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Disciplina |
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Soggetti |
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Developmental psychology |
Psychology |
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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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Description based upon print version of record. |
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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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Book Cover; Title; Copyright; Contents; Figures; Tables; Contributors; Preface; 1 Motor development as foundation and future of developmental psychology; 2 The early experience assumption: Past, present, and future; 3 Behavioural genetics in the 21st century; 4 Nutritional deficiencies as a biological context for development; 5 Prospects for research on the quality of pre-school experience; 6 Development of children's knowledge about the mental world; 7 Domain-specific constraints of conceptual development; 8 Research on memory development: Past and present |
9 Mindreading, emotion understanding, and relationships10 Lifespan personality development: Individual differences among goal-oriented agents and developmental outcome; 11 Perspectives on gender development; 12 Agency in development; 13 The development of aggressive behaviour during childhood; 14 Cross-cultural views on human development in the third millennium; 15 Transitions in adolescent research; 16 The impact of longitudinal studies on understanding development from young adulthood to old age; 17 Growing points in developmental science: A summing up; Author index; |
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Sommario/riassunto |
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Growing Points in Developmental Science is an ISSBD publication based on the millennium symposia papers published in the International Journal of Behavioral Development in 2000. This collection of overview chapters summarises the state of the art and the way forward for this discipline.Experienced researchers as well as younger, cutting-edge scientists have contributed to this international collection. The topics range from early experience to old age, and include issues in both social and cognitive development. Particular interests are investigated, such as the biologica |
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