An Unsteady Helicopter Rotor PDF Download
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Author: Peter Frederick Lorber
Publisher:
ISBN:
Category : Helicopters
Languages : en
Pages : 134
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Book Description
Author: Peter Frederick Lorber
Publisher:
ISBN:
Category : Helicopters
Languages : en
Pages : 132
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Book Description
Author:
Publisher: DIANE Publishing
ISBN: 1428916601
Category :
Languages : en
Pages : 248
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Book Description
Author: Harry L. Runyan
Publisher:
ISBN:
Category : Helicopters
Languages : en
Pages : 28
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Book Description
Author: Peter F. Lorber
Publisher:
ISBN:
Category :
Languages : en
Pages : 117
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722940744
Category :
Languages : en
Pages : 130
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Book Description
A computational method was developed to treat unsteady aerodynamic interactions between a helicopter rotor, wake, and fuselage and between the main and tail rotors. An existing lifting line prescribed wake rotor analysis and a source panel fuselage analysis were coupled and modified to predict unsteady fuselage surface pressures and airloads. A prescribed displacement technique is used to position the rotor wake about the fuselage. Either a rigid blade or an aeroelastic blade analysis may be used to establish rotor operating conditions. Sensitivity studies were performed to determine the influence of the wake fuselage geometry on the computation. Results are presented that describe the induced velocities, pressures, and airloads on the fuselage and on the rotor. The ability to treat arbitrary geometries is demonstrated using a simulated helicopter fuselage. The computational results are compared with fuselage surface pressure measurements at several locations. No experimental data was available to validate the primary product of the analysis: the vibratory airloads on the entire fuselage. A main rotor-tail rotor interaction analysis is also described, along with some hover and forward flight. Lorber, Peter F. and Egolf, T. Alan Unspecified Center COMPUTATIONAL FLUID DYNAMICS; CONFIGURATION INTERACTION; INTERACTIONAL AERODYNAMICS; ROTARY WINGS; UNSTEADY AERODYNAMICS; UNSTEADY FLOW; AERODYNAMIC LOADS; FUSELAGES; HELICOPTER WAKES; HORIZONTAL FLIGHT; HOVERING; PRESSURE EFFECTS...
Author: James Anthony Sansone
Publisher:
ISBN:
Category : Rotors (Helicopters)
Languages : en
Pages : 98
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Book Description
Author: J. -J. Costes
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
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Book Description
Author: John D. Berry
Publisher:
ISBN:
Category : Helicopters
Languages : en
Pages : 262
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Book Description
Author: Morris P. Isom
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 40
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 28
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Book Description
