05545nam 22007213u 450 991100707920332120230802010921.00-486-13182-31-62198-653-5(CKB)2550000001185938(EBL)1894902(SSID)ssj0000956081(PQKBManifestationID)12420370(PQKBTitleCode)TC0000956081(PQKBWorkID)10964448(PQKB)11136968(MiAaPQ)EBC1894902(Au-PeEL)EBL1894902(CaONFJC)MIL565316(OCoLC)868274081(EXLCZ)99255000000118593820141222d2012|||| u|| |engur|n|---|||||txtccrHelicopter Theory1st ed.Newburyport Dover Publications20121 online resource (1441 p.)Dover Books on Aeronautical EngineeringDescription based upon print version of record.0-486-68230-7 1-306-34065-9 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 EffectChapter 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 Motion5-12 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 - DESIGN7-1 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 Motion9 - 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 Wing10 - 8 Vortex-Induced Velocity 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 helicopterDover Books on Aeronautical EngineeringHelicoptersHelicoptersMechanical EngineeringHILCCEngineering & Applied SciencesHILCCAeronautics Engineering & AstronauticsHILCCHelicopters.Helicopters.Mechanical EngineeringEngineering & Applied SciencesAeronautics Engineering & Astronautics629.133/352629.133352Johnson Wayne383964AU-PeELAU-PeELAU-PeELBOOK9911007079203321Helicopter Theory471922UNINA