关键词: 流体力学 , 滑翔增程弾 , 飞行弹道 , 弾道特性

Abstract: The gliding flight of projectile is an efficient extended range technique. The flight process of gliding extended range projectile was explained. The whole flight trajectory was divided into three seg?ments and the ballistic model of every segment was established. The characteristics of the whole flight trajectory were studied. The result shows that the characteristics of climbing trajectory are same, while the characteristics of falling trajectory have obvious difference between gliding trajectory and or?dinary trajectory. The control strategy oi little step walk is adopted in rolling control segment and the open loop control is used in gliding control segment. The simulative results show that the control method is feasible and the conclusion is the same as the designed ideas. It can be used for the design of gliding extended range projectile in the future.

Key words: fluid mechanics , gliding extended range projectile , flight trajectory , characteristic of tra?jectory