Last edited by Zulkimuro
Sunday, August 2, 2020 | History

2 edition of Correlation of Puma airloads found in the catalog.

Correlation of Puma airloads

Correlation of Puma airloads

lifting-line and wake calculation

  • 330 Want to read
  • 27 Currently reading

Published by National Aeronautics and Space Administration, Ames Research Center, US Army Aviation Systems Command, Aviation Research and Technology Activity, For sale by the National Technical Information Service in Moffett Field, Calif, [Springfield, Va .
Written in English

    Subjects:
  • Lift (Aerodynamics),
  • Rotors (Helicopters),
  • Aerodynamic loads.,
  • Computational fluid dynamics.,
  • Flight tests.,
  • Helicopter performance.,
  • Lift.,
  • Nonlinear systems.

  • Edition Notes

    StatementWilliam G. Bousman ... [et al.].
    SeriesNASA technical memorandum -- 102212., USAAVSCOM technical report -- 89-A-006., AVSCOM technical report -- 89-A-006.
    ContributionsBousman, William G., Ames Research Center., United States. Army Aviation Research and Technology Activity.
    The Physical Object
    FormatMicroform
    Pagination26 p.
    Number of Pages26
    ID Numbers
    Open LibraryOL16137758M

    dtic ad in-flight measurement and correlation with theory of blade airloads and responses on the xha compound helicopter rotor. volume i. measurement and data reduction of airloads and structural loads by defense technical information center.   The calculated airloads differ significantly from the measurements for the UHA and BO Better correlation is obtained for the UHA and BO by using the multiple-trailer with consolidation wake model. In the high speed condition, the analysis shows generally good agreement with the research Puma flight data in both magnitude and phase.

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Blade flap and chord bending and torsion moments are investigated for six rotors operating at transition and high speed: H in flight and wind tunnel, SA (research Puma), SA /2, UHA full-scale, and BO model (HART-I). The measured data from flight and wind tunnel tests are compared with calculations.   Correlation of Puma Airloads Evaluation of CFD Prediction Methods, 14th European Rotorcraft Forum, Amsterdam, The Netherlands (September ) Google Scholar [14].

    A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. chord bending moment is observed for the research Puma and UHA. The poor correlation of the chord bending moment for the UHA appears to be caused by both the airloads model (at all radial locations) and the lag damper model (mostly at inboard locations). Nomenclature A rotor disk area, πR2 C T rotor thrust coefficient, T/ρA(R)2 c.


Share this book
You might also like
New commentaries on the laws of England

New commentaries on the laws of England

Fifty steps to the moon.

Fifty steps to the moon.

Techniques for Rapid Assessment of Seismic Vulnerability

Techniques for Rapid Assessment of Seismic Vulnerability

Jewish forerunners of Christianity

Jewish forerunners of Christianity

Western science and Asian cultures

Western science and Asian cultures

Pennsylvania criminal practice

Pennsylvania criminal practice

The crescent arises over the banyan tree

The crescent arises over the banyan tree

General lattice theory

General lattice theory

Bars of iron

Bars of iron

The College Board

The College Board

Testing the parametric specification of the diffusion function in a diffusion process

Testing the parametric specification of the diffusion function in a diffusion process

Authority and organization in German management.

Authority and organization in German management.

Quilt winders and pod shavers

Quilt winders and pod shavers

voice of the `Oud

voice of the `Oud

Parcs et réserves, Québec =

Parcs et réserves, Québec =

Correlation of Puma airloads Download PDF EPUB FB2

Get this from a library. Correlation of puma airloads: evaluation of CFD prediction methods. [Roger C Strawn; United States. Army Aviation Research and Technology Activity.; Ames Research Center.;].

Correlation of puma airloads. 19 p. (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: Roger C Strawn; United States. Army Aviation Research and Technology Activity.; Ames Research Center.

Get this from a library. Correlation of Puma airloads: lifting-line and wake calculation. [William G Bousman; Ames Research Center.; United States. Army Aviation Research and Technology Activity.;]. Correlation of Puma Airloads - Lifting-Line and Wake Calculation William G.

Bousman, Colin Young, Neil Gilbert, Frangois Toulmay, Wayne Johnson, and M. Riley q.m LC) DTIC ELECI E DEC'o Ila8 i'duvuliber S B D NASA flJASAY AVT10v National Aeronautics and SYSTEMS COMMAND AVIATION RESEARCH ANO Space Administration TECHNLOGY ACTIVITY v. comprehensive lifting-line aerodynamic predictions for the Puma flight-test cases and to assess the relative strengths and limitations of Correlation of Puma airloads book.

This paper and its companion paper “Correlation of Puma Airloads - Lifting-Line and Wake Calculation” will exam- ine the major questions that resulted from the workshop and summarize the substantial. An illustration of an open book. Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker.

Audio An illustration of a " floppy disk. Correlation of Puma airloads: Lifting-line and wake calculation by NASA Technical Reports Server (NTRS) Publication date Topics. Correlation of Puma airloads: Lifting-line and wake calculation.

wake methods and three CFD methods by comparing their predictions with the data obtained in flight trials of a research Puma. The Puma was tested in two configurations: a mixed bladed rotor with instrumented rectangular tip blades, and a configuration with four identical.

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

Correlation of puma airloads: (Book) 3 editions published in in English and held by WorldCat member libraries worldwide A m-diameter rotor model was tested in hover to examine the effects of structural flap-lag and pitch-lag coupling on isolated rotor blade lead-lag stability. The presented research validates the capability of a loosely coupled computational fluid dynamics (CFD) and comprehensive rotorcraft analysis (CRA) code to calculate the flowfield around a rotor and test stand mounted inside a wind tunnel.

The CFD/CRA predictions for the Full-Scale UHA Airloads Rotor inside the National Full-Scale Aerodynamics Complex (NFAC) by Foot Wind Tunnel at. correlation of puma airloads-lifting-line and wake calculation by william g.

bousman u.s. army aeroflightdynamics directorate moffett field, california, usa neil gilbert aeronautical research laboratory melbourne, australia wayne johnson johnson aeronautics palo alto, california, usa colin young royal aerospace establishment farnborough,england.

Correlation of Puma airloads: Evaluation of CFD prediction methods. By Judith Miller, Alan Jones, The program goal is to compare predictions with experimental data for flight tests of a research Puma helicopter with rectangular and swept tip blades.

Two topics are studied. First, computed results from three CFD codes are compared for. The calculated airloads differ significantly from the measurements for the UHA and BO Better correlation is obtained for the UHA and BO by using the multiple trailer with consolidation wake model.

In the high-speed condition, the analysis shows generally good agreement with the research Puma flight data in both magnitude and phase. An illustration of an open book.

Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. (NTRS) Blade Motion Correlation for the Full-Scale UHA Airloads Rotor Item Preview remove-circle Blade Motion Correlation for the Full-Scale UHA Airloads Rotor by NASA Technical Reports.

The poor correlation of the chord bending moment for the UHA appears to be caused by both the airloads model (at all radial locations) and the lag damper model (mostly at inboard locations. Correlation Of Airloads On A Two-Bladed Helicopter Rotor Authors / Details: Francisco Hernandez, NASA Ames; Wayne Johnson, Johnson Aeronautics Recently Viewed Items.

Correlation of puma airloads [electronic resource]: evaluation of CFD prediction methods / Roger C. Str NASA High-Speed Research Program Aerodynamic Performance Workshop [microform]: proceedings of a wo. Airloads Correlation of the UHA Rotor inside the by Foot Wind Tunnel Conference Paper (PDF Available) in International Journal of Aerospace Engineering (1) January with 79 Reads.

Correlation of airloads and stresses with theoretical results was generally good. a significant underprediction of chord bending moment is observed for the research Puma and UHA.

The poor. An illustration of an open book. Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio An illustration of a " floppy disk. Loads Correlation of a Full-Scale UHA Airloads Rotor in a Wind Tunnel by NASA Technical Reports Server (NTRS) Publication date.

"'Correlation of PUMA Airloads-Evaluation of CFD Prediction Methods," Fif-teenth European Rotorcraft Forum. Amsterdam, Sept. "Hernandez, F., and Johnson, W., "'Correlation of Airloads on a Two-Bladed Helicopter Rotor," International Specialist Meeting on.dtic ad in-flight measurement and correlation with theory of blade airloads and responses on the xha compound helicopter rotor.

volume 3. theoretical prediction of airloads and structural loads and correlation with flight test measurements by defense technical information center.Puma, and SA /2. Torsion moment correlation, in general, is fair to good for all the rotors investigated.

Better flap bending and torsion moment correlation is obtained for the UHA and BO rotors by using the multiple-trailer with consolidation wake model.

In the high speed condition, the analysis shows generally.