SPIN DEFICIENCIES OF SPIN STABILISED PROJECTILES I-DIFFERENTIAL SPIN
In a dynamic firing trial involving carrier projectiles it was found that during launch the payload of some of the projectiles slipped with respect to the carrier body. Payload and carrier body locks at muzzle exit resulting in a lower projectile spin rate. The yaw of repose theory and a related simulation are used to link the different spin rates to the distinct differences in observed deflection values of the projectiles. Furthermore initial yaw frequencies differ for projectiles with different spin rates. It was possible using 6DOF simulation to closely match the yaw frequencies as observed for projectiles with different spin rates.
WJ Rossouw
Ballistics Research Group, Denel Land Systems, PO Box 7710, Pretoria 0001, South Africa
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
293-298
2010-05-17(万方平台首次上网日期,不代表论文的发表时间)