Dynamic Structural Aeroelastic Stability Testing of the XV-15 Tilt Rotor Research Aircraft.

Abstract

For the past 20 years, a significant effort has been made to understand and predict the structural aeroelastic stability characteristics of the tilt rotor concept. Beginning with the rotor-pylon oscillation of the XV-3 aircraft, and the problem was identified and then subjected to a series of theoretical studies, plus model and full-scale wind tunnel tests. From this data base, methods were developed to predict the structural aeroelastic stability characteristics of the XV-15 Tilt Rotor Research Aircraft. This paper examines the predicted aeroelastic characteristics in light of the major parameters effecting rotor-pylon-wing stability; describes flight test techniques used to obtain XV-15 aeroelastic stability; presents a summary of flight test results; compares the flight test results to the predicted values; and presents a limited comparison of wind tunnel results, flight test results, and their correlation with predicted values.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1982
Accession Number
ADA123857

Entities

People

  • Laurel G. Schroers

Organizations

  • Ames Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Airframes
  • Airspeed
  • Computer Programs
  • Control Systems
  • Couplings
  • Data Analysis
  • Databases
  • Frequency
  • Helicopters
  • Oscillation
  • Research Aircraft
  • Research Facilities
  • Resonant Frequency
  • Tilt Rotor Aircraft
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Aerodynamics/Aeronautics.
  • Business Analytics