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Bramwell's helicopter dynamics / / A.R.S. Bramwell, George Done, David Balmford
| Bramwell's helicopter dynamics / / A.R.S. Bramwell, George Done, David Balmford |
| Autore | Bramwell A. R. S. |
| Edizione | [2nd ed.] |
| Pubbl/distr/stampa | Reston, VA : , : American Institute of Aeronautics and Astronautics |
| Descrizione fisica | 1 online resource (403 pages) |
| Disciplina | 629.133352 |
| Altri autori (Persone) | BramwellA. R. S |
| Soggetto topico |
Helicopters - Dynamics
Helicopters - Aerodynamics Helicòpters - Aerodinàmica |
| ISBN |
1-282-73715-5
9786612737152 0-08-052830-9 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Front Cover; Bramwell's Helicopter Dynamics; Copyright Page; Contents; Preface to the second edition; Preface to the first edition; Acknowledgements; Notation; Chapter 1. Basic mechanics of rotor systems and helicopter flight; Chapter 2. Rotor aerodynamics in axial flight; Chapter 3. Rotor aerodynamics and dynamics in forward flight; Chapter 4. Trim and performance in axial and forward flight; Chapter 5. Flight dynamics and control; Chapter 6. Rotor aerodynamics in forward flight; Chapter 7. Structural dynamics of elastic blades; Chapter 8. Rotor induced vibration
Chapter 9. Aeroelastic and aeromechanical behaviourAppendices; Index |
| Altri titoli varianti | Helicopter dynamics |
| Record Nr. | UNINA-9911004752403321 |
Bramwell A. R. S.
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| Reston, VA : , : American Institute of Aeronautics and Astronautics | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Rotary-wing aerodynamics / / W.Z. Stepniewski, C.N. Keys
| Rotary-wing aerodynamics / / W.Z. Stepniewski, C.N. Keys |
| Autore | Stepniewski W. Z (Wieslaw Zenon), <1909-> |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | New York : , : Dover Publications, Inc., , 1984 |
| Descrizione fisica | 1 online resource (1212 pages) |
| Disciplina | 629.132/3 |
| Collana | Dover Books on Aeronautical Engineering |
| Soggetto topico |
Helicopters - Aerodynamics
Mechanical Engineering Engineering & Applied Sciences Aeronautics Engineering & Astronautics Helicòpters - Aerodinàmica |
| ISBN |
9780486318516
1-5231-0956-4 0-486-31851-6 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Contents: 1. Basic theories of rotor aerodynamics : (with application to helicopters) / W.Z. Stepniewski – 2. Performance prediction of helicopters / C.N. Keys ; edited by W.Z. Stepniewski
Cover; Title Page; Copyright Page; Foreword; Volume 1; Preface; Notes on Metric System; Chapter I: Introduction; 1. Definition of Rotary-Wing Aircraft; 1.1 General; 1.2 Disc Loading; 2. Energy Consumption of Rotary-Wing Aircraft; 2.1 Hover; 2.2 Cruise; 3. Fundamental Dynamic Problems of the Rotor; 3.1 Asymmetry of Flow; 3.2 Asymmetry of Blade Loads; 3.3 Flapping Hinge; 4. Blade Flapping Motion; 4.1 Static Stability; 4.2 Dynamic Stability; 4.3 Effect of Flapping Hinge Offset; 5. Rotor Control; 5.1 Rotor Thrust Inclination through Cyclic Control in Hover; 5.2 Blade Flapping in Forward Flight 5.3 Control of the Thrust Vector Inclination6. Blade Lagging Motion; 7. Configurations; 7.1 Rotor Types; 7.2 Types of Helicopter Control; 7.3 Conventional Helicopter; 7.4 Tilt Rotor; References for Chapter I; Chapter II: Momentum Theory; 1. Introduction; 2. Simplest Model of Thrust Generation; 3. Actuator Disc; 3.1 Induced Velocity and Thrust in Axial Translation; 3.2 Contraction and Expansion of the Slipstream; 3.3 Ideal Power in Climb and Hovering; 3.4 Vertical Climb Rates; 3.5 Vertical Descent Rates; 3.6 Induced Velocity and Thrust in Nonaxial Translation 3.7 Power Required in Nonaxial Translation3.8 Thrust Tilt in Forward Flight; 3.9 Induced Power in Horizontal Flight; 3.10 Rate of Climb in Forward Flight; 3.11 Partial and Zero-Power Descent in Forward Flight .; 4. Flight Envelope of an Ideal Helicopter; 5. Effects of Downwash Characteristics on Induced Power; 5.1 Uniform Downwash - No Tip Losses; 5.2 Nonuniform Downwash and Tip Losses - The kind Factor; 5.3 Examples of kfncj Values and Types of Loading in Hover; 5.4 kind Values and Types of Span-Loading in Horizontal Flight; 6. Tandem Rotor Interference in Horizontal Flight; 6.1 The Model 6.2 Axial Flow Velocities and Induced Power6.3 Thzkmd Factor; 7. Induced Velocity Distributions Along Disc Chords; 8. Concluding Remarks re Momentum Theory; References for Chapter II; Chapter III: Blade Element Theory; 1. Introduction; 2. Axial Translation and Hovering; 2.1 Basic Considerations of Thrust and Torque Predictions; 2.2 Combined Blade-Element and Momentum Theory; 2.3 Nondimensional Coefficients; 2.4 Rotor Profile Power in Axial Translation; 2.5 Tip Losses; 2.6 Rotor Thrust and Power in Climb and Hovering; 2.7 Thrust and Induced Power of Intermeshing and Overlapping Rotors 2.8 Rotor Power, and Aerodynamic and Overall Efficiencies in Hover3. Forward Flight; 3.1 Velocities; 3.2 Thrust and Torque (General Considerations); 3.3 Downwash Distribution Along the Rotor Disc Chord; 3.4 Blade Profile Drag Contribution to Rotor Power and Drag (Simplified Approach); 3.5 Further Study of Blade Profile Drag Contribution to Rotor Power and Drag; 3.6 Contribution of Blade Element Induced Drag to Rotor Torque and Power; 3.7 Contribution of Blade Element Induced Drag to Rotor Drag; 3.8 Propulsive Thrust and Power Required in Horizontal Flight 3.9 Rotor and Helicopter Efficiency in Horizontal Flight |
| Record Nr. | UNINA-9911006703303321 |
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Stepniewski W. Z (Wieslaw Zenon), <1909->
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| New York : , : Dover Publications, Inc., , 1984 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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