为提高末敏子弹稳态扫描段的整体性能,设计一种由旋转伞和圆形减速伞构成的组合伞系统。基于ADAMS软件,对2种旋转伞-末敏子弹系统进行多体动力学建模,计算零初速自由下落过程,并通过伞塔试验验证模型的正确性。模拟2种系统的稳态扫描过程,得到弹道特性并进行对比分析。结果表明:双伞-子弹系统具有更好的整体运动性能,稳态落速低,滞空时间长,在地面形成更密集的扫描轨迹。

To increase the whole performance of terminal-sensitive submunition during steady scanning stage, a compound parachute system composed of a circle drag parachute and a rotating parachute was designed. Based on ADAMS software, the dynamic models of two multibody systems were set up, and the falling process with O initial velocities was simulated. Parachute tower test was designed to verify the dynamic models. Then the two models were used to simulate the steady scanning process, and the ballistic characteristics were obtained, and their kinetic performances were analyzed contrastively. The results show that the double parachute system has better kinetic performance comparatively, for its stable falling velocity is low and could stay in the air for a longer time, and the ground scanning trace is denser