Wind Tunnel Spin Data Reduction to Obtain Aerodynamic Spin Damping Coefficients by Using Nonlinear Equation of Motion

Abstract

A compute program, SPINFIT, is designed for extracting the linear and nonlinear spin damping coefficients by fitting calculated values to the observed wind tunnel spin data. The approach used in this program is the technique developed by Chapman and Kirk of Ames, NASA. The example given in this report showed significant improvement in fitting with the nonlinear spin damping term in the equation of motion when compared to this exponential fit.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1992
Accession Number
ADA253880

Entities

People

  • Chiu H. Ng
  • Seungeuk Han

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • C4I
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Artillery
  • Coefficients
  • Command And Control
  • Computer Programs
  • Computers
  • Differential Equations
  • Engineering
  • Equations
  • Molecular Dynamics
  • Munitions
  • Steady State
  • Test And Evaluation
  • Weapons
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Fluid Dynamics.
  • Regression Analysis.