Using Pressure Sensitive Paint to Measure Aerodynamic Forces on a Rotor Blade in Hover
Author : Anthony Neal Watkins
Publisher :
Page : 52 pages
File Size : 34,35 MB
Release : 2018
Category :
ISBN :
Improvement of Fast Binary Pressure-Sensitive Paint Technology for Helicopter Rotor Blade Investigations
Author :
Publisher :
Page : 25 pages
File Size : 31,64 MB
Release : 2000
Category :
ISBN :
Book Description
The laboratory investigations of the characteristics of fast PSP are continued. In the first stage it was already investigated the spectra of emission and excitation, the calibration characteristics and the time response. In addition the spatial homogeneity of the covering is investigated. The scheme of experiment in T-105 wind tunnel using the helicopter devices MVP-5 and MVP-8 is developed and the supporting optical system is designed. The developed units and blocks to optical system are manufactured. The algorithms and programs of processing of the PSP images was enhanced to binary-type images. An units and techniques have been tested in TsAGI's T-125 wind tunnel at investigations of airfoil model with chord 100 mm, approximately equal to chord of model of the helicopter blade model under test.
Investigation of Helicopter Rotor Blade Flutter and Flapwise Bending Response in Hovering
Author : Frank A. DuWaldt
Publisher :
Page : 326 pages
File Size : 46,71 MB
Release : 1959
Category : Flutter (Aerodynamics)
ISBN :
Book Description
Scientific and Technical Aerospace Reports
Author :
Publisher :
Page : 704 pages
File Size : 37,24 MB
Release : 1995
Category : Aeronautics
ISBN :
Book Description
Compressibility Effects on Oscillating Rotor Blades in Hovering Flight
Author : W. P. Jones
Publisher :
Page : 42 pages
File Size : 21,63 MB
Release : 1968
Category :
ISBN :
Book Description
A theory is developed and used for determining the influence of compressibility on the aerodynamic forces acting on helicopter rotor blades when oscillating in hovering flight. The usual two-dimensional mathematical model of the flow is adopted in which a section of the reference rotor blade and its helical wake is replaced by an airfoil with a straight wake and a system of regularly spaced infinite wakes below, the amount of spacing depending on the downward flow induced by the rotor and the number of blades. (Author).
International Aerospace Abstracts
Author :
Publisher :
Page : 920 pages
File Size : 16,46 MB
Release : 1998
Category : Aeronautics
ISBN :
Book Description
Tables of Aerodynamic Derivatives of Oscillating Rotor Blades in Hovering Flight
Author : B. M. Rao
Publisher :
Page : 56 pages
File Size : 11,61 MB
Release : 1969
Category :
ISBN :
Book Description
A theory was developed for determining the influence of compressibility on the aerodynamic forces acting on helicopter rotor blades when oscillating in hovering flight. In this theory, the usual two-dimensional mathematical model of the flow was adopted in which a section of the reference rotor balde and its helical wake are replaced by an airfoil with a straight wake and a system of regularly spaced infinite wakes below, the amount of spacing depending on the downward flow induced by the rotor and the number of blades. In this report, the same theory is used to compute the aerodynamic derivative coefficients referred to the quarter-chord point on the airfoil. The results obtained are tabulated for single and two-bladed rotors for a range of values of the parameters involved. (Author).
Aeronautical Engineering
Author :
Publisher :
Page : 712 pages
File Size : 10,87 MB
Release : 1993
Category : Aeronautics
ISBN :
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)
Uncertainty Analysis of the Pressure Sensitive Paint Method for Aerodynamics Measurement
Author : Donald Robert Mendoza
Publisher :
Page : 82 pages
File Size : 24,22 MB
Release : 1995
Category :
ISBN :
Book Description
Rotary-Wing Aerodynamics
Author : W. Z. Stepniewski
Publisher : Courier Corporation
Page : 640 pages
File Size : 33,99 MB
Release : 2013-04-22
Category : Technology & Engineering
ISBN : 0486318516
Book Description
DIVClear, concise text covers aerodynamic phenomena of the rotor and offers guidelines for helicopter performance evaluation. Originally prepared for NASA. Prefaces. New Indexes. 10 black-and-white photos. 537 figures. /div
