摘要
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 muhi- body systems were set up, and the failing process with 0 initial velocities was simulated. Parachute tower test was designed to verify the dy- namic 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
出处
《弹箭与制导学报》
CSCD
北大核心
2015年第6期33-36,40,共5页
Journal of Projectiles,Rockets,Missiles and Guidance
基金
国家自然科学基金(11102088)
江苏省研究生培养创新计划项目(CXLX12-0210)资助
关键词
伞-弹系统
拉格拉日方法
多体动力学
伞塔试验
parachute-submunition system
Lagrange method
multi-body dynamics
parachute tower test
