一种低速滚转弹药脉冲发动机弹道修正方法  

Trajectory Correction Scheme Based on Pulse Jet for Low Speed Rolling Projectile

作　　者：张成[1] 曹营军[1] 杨树兴[1] 

机构地区：[1]北京理工大学宇航科学技术学院,北京100081

出　　处：《弹道学报》2008年第2期45-48,共4页Journal of Ballistics

基　　金：教育部跨世纪人才培养计划基金项目(100762021)

摘　　要：提出了一种脉冲发动机直接力控制的弹道修正方案,分析了启控时间的选择原则,推导了横向速度追踪导引律,介绍了纵向命中点预测导引律,分析了点火策略,给出了系统控制流程.通过数值仿真验证了控制方案的有效性,计算表明,采用本控制方案后,某型弹药的落点圆概率误差从131 m降低到42 m,有效提高了射击精度.A trajectory correction scheme of pulse jet based on direct force control was brought forward. The starting time selection principle was analyzed. The velocity vector tracing guidance law in horizontal plane was deduced, and the impact point forecast guidance law in the vertical plane was introduced. The fire logic of pulse jets was analyzed, and the control diagram was provided. By numerical simulation, the control scheme was validated. The calculation indicates that the circular probable error reduces to 42 m from 131 m, and the fire accuracy is improved effectively.

关 键 词：滚转弹 脉冲发动机 弹道 修正 

分 类 号：TJ012[兵器科学与技术—兵器发射理论与技术]