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Helicopter Theory.

Author: Wayne Johnson
Publisher: Newburyport : Dover Publications, 2012.
Series: Dover Books on Aeronautical Engineering.
Edition/Format:   eBook : Document : EnglishView all editions and formats
Summary:
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  Read more...
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Details

Genre/Form: Electronic books
Material Type: Document, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Wayne Johnson
ISBN: 0486131823 9780486131825 1621986535 9781621986539 1306340659 9781306340656
OCLC Number: 1058651181
Language Note: English.
Description: 1 online resource (1441 pages).
Contents: 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. 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.
Series Title: Dover Books on Aeronautical Engineering.

Abstract:

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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