Prediction of Rotor-Blade Deformations Due to Unsteady Airloads

Abstract

SOFIA, a computer code for aeroelastic computations, was applied to predict the rotor blade deformations due to unsteady airloads caused by BVI and to investigate appropriate control movements to minimize vibration and noise. The computation of the unsteady, compressible, inviscid flow about rotor-blades uses an Euler CFD code, while a quasi one-dimensional structural solver is used to compute the deformation of the rotor blades. BVI, Individual blade control, Aeroelasticity, Unsteady airloads, Euler CFD code, Timoshenko-beam theory.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 1994
Accession Number
ADA284467

Entities

People

  • J. Ballmann
  • S. Schlechtriem

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Aeroelasticity
  • Center Of Gravity
  • Computational Fluid Dynamics
  • Computations
  • Differential Equations
  • Elastic Properties
  • Equations
  • Experimental Data
  • Inviscid Flow
  • Mach Number
  • Mechanics
  • Pressure Distribution
  • Stress Waves
  • Verification
  • Waves

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Computational Fluid Dynamics (CFD)