Accession Number : AD0870704

Title :   Nonlinear Motion of a Missile with Slight Configurational Asymmetries.

Descriptive Note : Memorandum rept.,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Murphy, Charles H.

Report Date : MAY 1970

Pagination or Media Count : 33

Abstract : The quasi-linear analysis which has been successfully applied to the nonlinear angular motion of symmetric missiles is extended to include the nonlinear motion of slightly asymmetric missiles. This analysis indicates the existence of three special spin rates - zero spin, resonant spin, and approximately three times resonant spin. The exact solution for the small amplitude motion about a large trim angle of a nonspinning missile with a cubic static moment is obtained and the quasi-linear relations are shown to agree well with this exact result. Relations for a cubic damping moment and a cubic lift force are derived. (Author)

Descriptors :   (*FIN STABILIZED AMMUNITION, AERODYNAMIC CHARACTERISTICS), PITCH(MOTION), YAW, FREE FLIGHT TRAJECTORIES, ANGLE OF ATTACK, EQUATIONS OF MOTION, OSCILLATION, DAMPING, MATHEMATICAL ANALYSIS.

Subject Categories : Ammunition and Explosives
      Armor
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE