Implementation of a Trailing-Edge Flap Analysis Model in the NASA Langley Camrad.Mod1/Hires Program PDF Download
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781720577980
Category :
Languages : en
Pages : 82
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Book Description
Continual advances in rotorcraft performance, vibration and acoustic characteristics are being sought by rotary-wing vehicle manufacturers to improve efficiency, handling qualities and community noise acceptance of their products. The rotor system aerodynamic and dynamic behavior are among the key factors which must be addressed to meet the desired goals. Rotor aerodynamicists study how airload redistribution impacts performance and noise, and seek ways to achieve better airload distribution through changes in local aerodynamic response characteristics. One method currently receiving attention is the use of trailing-edge flaps mounted on the rotor blades to provide direct control of a portion of the spanwise lift characteristics. The following work describes the incorporation of a trailing-edge flap model in the CAMRAD.Mod1/FHUS comprehensive rotorcraft analysis code. The CAM-RAD.Mod1/HIRES analysis consists of three separate executable codes. These include the comprehensive trim analysis, CAMRAD.Mod1, the Indicial Post-Processor, IPP, for high resolution airloads, and AIRFOIL, which produces the rotor airfoil tables from input airfoil section characteristics. The modifications made to these components permitting analysis of flapped rotor configurations are documented herein along with user instructions detailing the new input variables and operational notes.Charles, BruceLangley Research CenterAERODYNAMIC CHARACTERISTICS; TRAILING EDGE FLAPS; AERODYNAMIC LOADS; DYNAMIC CHARACTERISTICS; NOISE POLLUTION; AIRFOILS; VIBRATION; CONTROLLABILITY; HIGH RESOLUTION; ROTARY WINGS
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781720577980
Category :
Languages : en
Pages : 82
Get Book Here
Book Description
Continual advances in rotorcraft performance, vibration and acoustic characteristics are being sought by rotary-wing vehicle manufacturers to improve efficiency, handling qualities and community noise acceptance of their products. The rotor system aerodynamic and dynamic behavior are among the key factors which must be addressed to meet the desired goals. Rotor aerodynamicists study how airload redistribution impacts performance and noise, and seek ways to achieve better airload distribution through changes in local aerodynamic response characteristics. One method currently receiving attention is the use of trailing-edge flaps mounted on the rotor blades to provide direct control of a portion of the spanwise lift characteristics. The following work describes the incorporation of a trailing-edge flap model in the CAMRAD.Mod1/FHUS comprehensive rotorcraft analysis code. The CAM-RAD.Mod1/HIRES analysis consists of three separate executable codes. These include the comprehensive trim analysis, CAMRAD.Mod1, the Indicial Post-Processor, IPP, for high resolution airloads, and AIRFOIL, which produces the rotor airfoil tables from input airfoil section characteristics. The modifications made to these components permitting analysis of flapped rotor configurations are documented herein along with user instructions detailing the new input variables and operational notes.Charles, BruceLangley Research CenterAERODYNAMIC CHARACTERISTICS; TRAILING EDGE FLAPS; AERODYNAMIC LOADS; DYNAMIC CHARACTERISTICS; NOISE POLLUTION; AIRFOILS; VIBRATION; CONTROLLABILITY; HIGH RESOLUTION; ROTARY WINGS
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 86
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Book Description
Author: Ronald O'Rourke
Publisher: DIANE Publishing
ISBN: 1437918778
Category : Technology & Engineering
Languages : en
Pages : 27
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Book Description
The V-22 Osprey is a tilt-rotor aircraft that takes off and lands vertically like a helicopter and flies forward like an airplane. DoD plans call for procuring a total of 458 V-22s. Contents of this report: (1) Intro.; (2) The V-22 In Brief; Intended Missions; Key Contractors; Total and Annual Procurement Quantities; Multiyear Procurement for FY2008-FY2012; Est. Total Program Cost; Prior-Year Funding; FY2010 Funding Request; Request for MV-22s; Request for CV-22s; Program History in Brief; Deployment to Iraq; Anticipated 2009 Deployment to Afghanistan; Foreign Military Sales; (3) Aircraft Reliability and Maintainability; Other Potential Issues; (4) Legislative Activity in 2009; May 21, 2009, Hearing on V-22 Program. Illustrations.
