THE DYNAMICS OF SPINNING BODIES AT LARGE ANGLE OF ATTACK
Abstract
A theoretical study was conducted to determine the motion of nonstabilized rolling and spinning bodies at very large angles of attack. From numerical integration of the non-line r sixdegrees-of-fre dom equations of motion it was found that a rolling cone-cylinder body couldACHIEVE A SELF-SUSTAINED SPINNING MOTION FOR LARGE RANGES OF BOTH CENTER-OF-GRAVITY POSITION AND Reynolds number. The stability of the autorotative motion was investigated using linear theory. For configuratio s representative of current small missiles descent velocities as low as approximately 100 ft/sec were achieved with spinning motion. Stable spins could be ini i ted from small angle of attack either by supplying a pitch impulse or effecting aerodynamic destabilization. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1962
- Accession Number
- AD0275437
Entities
People
- J.e. Brunk
- R.w. Rakestraw
- W.l. Davidson