弹道修正火箭弹修正方案与射击精度研究  

Research on Correction Method and Firing Accuracy of Trajectory Correction Rocket

作　　者：宋谢恩 高敏 李超旺 王毅 吴汉洲 SONG Xieen;GAO Min;LI Chaowang;WANG Yi;WU Hanzhou(Shijiazhuang Campus,Army Engineering University,Shijiazhuang 050003,China)

机构地区：[1]陆军工程大学石家庄校区,河北石家庄050003

出　　处：《弹道学报》2020年第1期38-46,共9页Journal of Ballistics

摘　　要：为了提高弹药射击精度,采用脉冲推冲器和阻力板作为修正执行机构对弹道进行修正。针对不同修正方案,建立了各自对应的的六自由度弹道模型,设计了以落点预测为基础的控制策略。在分析、比较单一执行机构弹道修正特点的基础上,提出了组合修正方案。以某型火箭弹为应用对象,对不同修正方案的弹道修正效果进行了仿真实验。结果表明:脉冲推冲器对横向偏差修正效果明显,对纵向偏差修正能力不足;阻力板对纵向偏差修正效果明显,无法消除横向偏差;组合修正方案对横向偏差和纵向偏差都具有较好的修正效果,能将火箭弹的圆概率误差提高到28 m。最终通过飞行试验对上述结论进行了验证,结果验证了组合修正方案对弹道修正的有效性。In order to improve the firing accuracy of ammunition,impulse jets and drag brakes were used to correct the trajectory.Aiming at different correct methods,the 6-degrees of freedom trajectory equations corresponding to impulse jects and drag brakes were constructed.The control method was proposed based on impact point prediction.After analyzing impulse jets and drag brakes separately,a combined correction strategy was put forward.In view of a typical rocket projectile,Monte-Carlo simulations were performed to analyze the trajectory correction precision of different correction methods.Results show that the correction effect of impulse jet on lateral deviation is obvious,and the capacity of impulse jets correcting the longitudinal deviation is inadequate.The drag brake can reduce the longitudinal deviation significantly,and it can’t eliminate the lateral deviation.The combined method is the best choice to decrease both lateral and longitudinal deviation,and the circular probable error can be improved to 28 meters.The above conclusions were validated by flight tests.The result shows that the combined trajectory correction method is effective.

关 键 词：脉冲推冲器 阻力板 弹道修正弹 弹道仿真实验 飞行试验 落点散布 

分 类 号：TJ012.3[兵器科学与技术—兵器发射理论与技术]