B-52E CCV Flight Test Data Applicable to Parameter Estimation

Abstract

Flight test data and a test vehicle description are presented for dual purposes; (a) to provide a means of verifying predictive flexible airplane response computer programs, and ((b) to provide data for developing methods of parameter estimation suitable for such aircraft. The B-52 test data for five transient response maneuvers and three control surface frequency sweep conditions is available on digital computer tapes. A preliminary parameter estimation study introduces techniques for selecting and measuring state vectors, for permitting variations of rate and displacement aerodynamic derivatives with frequency, and for a specialized conversion of difference equation coefficients to differential equation coefficients. Good agreement of theoretical and test derived eigenvalues is shown for rigid body and six elastic modes for the case of aileron frequency sweeps.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1975
Accession Number
ADB011143

Entities

People

  • Donald L. Hull
  • Kenneth L. Roger

Organizations

  • Boeing

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Aerodynamic Configurations
  • Aircrafts
  • Airframes
  • Computer Programs
  • Computers
  • Control Surfaces
  • Control Systems
  • Difference Equations
  • Differential Equations
  • Equations Of Motion
  • Horizontal Stabilizers
  • Insensitive Explosives
  • Instrumentation
  • Measurement
  • Plastic Explosives
  • Test And Evaluation
  • Test Vehicles

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Computational Modeling and Simulation
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)