Effect of Near-Zero Spin on Instability of Controlled Projectiles in Ascending or Descending Flight

Abstract

Lloyd and Brown have shown that constant-amplitude horizontal and vertical side forces applied to a spinning projectile can cause dynamic instability. A subsequent ARRADCOM report (AD-A072 808) removed some of the limitations of the Lloyd-Brown work and gave somewhat more general results. Unfortunately, these results were applied in the report to a case for which they were unsuitable; a nonspinning statically stable missile. The present report derives correct results for the zero-spin case and shows that the results of the earlier report are valid for spin rates greater than about five times the resonant spin value.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1980
Accession Number
ADA086775

Entities

People

  • Charles H. Murphy
  • James W. Bradley

Organizations

  • Ballistic Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aeronautical Engineering
  • Aeronautics
  • Angular Motion
  • Coordinate Systems
  • Engineering
  • Equations
  • Frequency
  • Instability
  • Jet Propulsion
  • Military Research
  • Physics Laboratories
  • Projectiles
  • Quadratic Equations
  • Resonance
  • Terminal Guidance
  • Universities
  • Weapons

Fields of Study

  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Control Systems Engineering.
  • Mathematics or Statistics