The Aerodynamic and Aeroelastic Characteristics of a Full-Scale Rotor Operating at very High Advance Ratios and during Start/Stop Operation

Abstract

The purpose of this program was to study the aerodynamic and aeroelastic behavior of a rigid two-bladed rotor system operating at steady- state advance ratios up to approximately 15. Also to be investigated was the operation of this rotor during periods of acceleration and deceleration which were representative of the starting/stopping sequence of a stowable rotor. The objective of the program was accomplished by conducting wind tunnel tests in the NASA-Ames 40- x 80-foot wind tunnel on a full-scale rotor. Hub forces and moments, blade pressure distributions (chordwise and spanwise), and blade flatwise, chordwise and torsional moments were measured. The experimental results were used to correlate with existing theory.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1971
Accession Number
AD0727653

Entities

People

  • Andrew R. Trenka

Organizations

  • Calspan

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Aircrafts
  • Control Systems
  • Dynamic Response
  • Electrical Equipment
  • Gages
  • Measurement
  • Measuring Instruments
  • Pressure Distribution
  • Pressure Gages
  • Pressure Transducers
  • Recording Systems
  • Resonant Frequency
  • Test Equipment
  • Test Facilities
  • Transducers
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerospace Engineering