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Thursday, April 30, 2020 | History

2 edition of Establishment of a rotor model basis found in the catalog.

Establishment of a rotor model basis

R. E McFarland

Establishment of a rotor model basis

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  • 33 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va .
Written in English

    Subjects:
  • Rotors (Helicopters) -- Aerodynamics,
  • Rotors -- Models

  • Edition Notes

    StatementR.E. McFarland
    SeriesNASA technical paper -- 2026, AVRADCOM technical report -- 81-A-14
    ContributionsAeromechanics Laboratory, Ames Research Center, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
    The Physical Object
    Paginationviii, 84 p. :
    Number of Pages84
    ID Numbers
    Open LibraryOL14933158M

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Establishment of a rotor model basis by R. E McFarland Download PDF EPUB FB2

Note: Citations are based on reference standards. However, formatting rules can vary widely between applications and fields of interest or study. The specific requirements or preferences of your reviewing publisher, classroom teacher, institution or organization should be applied. The rotor model used was a 40% Mach scaled model of the MBB Bo of the German aerospace establishment DLR in Braunschweig.

The rotor consists of four hingeless blades with m chord length, rectangular blade planform, and -8° linear twist. The Cited by: The purpose of this article is to provide an overview of the state of the art on the rotor-casing contact phenomenon in rotor dynamics, describing aspects of different physical parameters such as Author: Sagheer Ahmad.

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Establishment of a rotor model basis book For the diagnosis of misalignment-rubbing coupling fault of rotor-rolling bearing system caused by misalignment fault, the mechanical model and finite element model of dual-disc rotor system with misalignment-rubbing coupling fault were established based on the nonlinear finite element method, rolling bearing force, equivalent misalignment Establishment of a rotor model basis book and contact theory in this paper.

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It is a non-political and non-religious organization open to all people regardless of race, color, religion, gender, sexual orientation / identity or political Headquarters: Evanston, Illinois, United States. An autogyro (from Greek αὐτός and γύρος, "self-turning"), also known as a gyroplane or gyrocopter, is a type of rotorcraft that uses an unpowered rotor in free autorotation to develop gloryland-church.comd thrust is provided independently, by an engine-driven gloryland-church.com similar to a helicopter rotor in appearance, the autogyro's rotor must have air flowing across the rotor disc to.

Reduced scale models based on similitude theory: A review up to isotropic plate subjected to circular moving loads, as well as, the lateral vibration characteristics of a rotor-bearing prototype, for free and forced vibration.

a suitably scaled model was designed and built on the basis of an extended application of the Buckingham Cited by: Abstract. Based on finite element (FE) method, a dynamic model of a single span blade-rotor-casing coupling system is established. The bearings, bladed rotor, discs and casing are simulated using spring-damping element, beam element, shell element and beam element suitable for curved beam separately (the casing stiffness and damping using spring-damping element).Cited by: 7.

A new kind of permanent magnet-biased hybrid magnetic bearing (MB) with magnet in rotor is developed in order to reduce the bearings volume and magnetic coupling between X and Y degrees-of-freedom. Its principle structure is introduced and magnetic circuit model is established, on the basis of which, the parameters such as maximum force, force to current ratio, force to displacement ratio and.

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Mathematical models of three-dimensional temperature field and thermal stress field of rotor magnetic poles are Author: Junqing Li, Luo Wang. Reference to this work may be found in Jones (), and the model provides the basis for the requirements in Def-Stan Opinions among experts differ, of course, but most importantly the flying qualities requirements in Def-Stan and in MIL.

An air-tunnel study of the establishment of the wake behind a disk at a Reynolds number of approximately 7 × 10 4 was undertaken. On the basis of the measured data, such a wake is fully established, that is, similarity profiles of the flow characteristics are formed, within 15 diameters of the disk, and approximately 95 percent of the transfer of energy from the mean motion to the turbulence Cited by: This revision supersedes AC A, "Aircraft Engine Type Certification Handbook,tt dated June 5, 3.

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Kohler engine identifi cation numbers (model, specifi cation and serial) should be referenced for effi cient repair, of, or back into rotor, in precise linear increments. When power is removed, actuator shaft remains in position.