Establishment of a Rotor Model Basis.

Abstract

Radial-dimension computations in the RSRA's blade-element model are modified for both the acquisition of extensive baseline data and for real-time simulation use. The baseline data, which are for the evaluation of model changes, use very small increments and are of high quality. The modifications to the real-time simulation model are for accuracy improvement, especially when a minimal number of blade segments is required for real-time synchronization. An accurate technique for handling tip loss in discrete balde models is developed. The mathematical consistency and convergence properties of summation algorithms for blade forces and moments are examined and generalized integration coefficients are applied to equal-annuli midpoint spacing. Rotor conditions identified as constrained and balanced are used and the propagation of error is analyzed. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1982
Accession Number
ADA117665

Entities

People

  • R. E. Mcfarland

Organizations

  • Ames Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Aerodynamic Forces
  • Aircrafts
  • Blade Tips
  • Computational Science
  • Computations
  • Computer Science
  • Computers
  • Data Acquisition
  • Databases
  • Differential Equations
  • Equations
  • Laser Diodes
  • Mathematical Models
  • Secondary Flow
  • Simulations

Readers

  • Aerodynamics.
  • Computational Modeling and Simulation
  • Parallel and Distributed Computing.

Technology Areas

  • Space