鸭式布局二维修正双旋弹角运动及转向响应特性分析  

Analysis of Angular Motion and Swerving Response Characteristics of Dual-spinning Two-dimensional Correction Projectile with Canard Layout

作　　者：李红云 申强[1,2] 邓子龙 LI Hongyun;SHEN Qiang;DENG Zilong(School of Mechatronical Engineering,Beijing Institute of Technology,Beijing 100081,China;Chongqing Innovation Center of Beijing Institute of Technology,Chongqing 401120,China)

机构地区：[1]北京理工大学机电学院,北京100081 [2]北京理工大学重庆创新中心,重庆401120

出　　处：《兵工学报》2024年第6期1866-1876,共11页Acta Armamentarii

基　　金：国家自然科学基金项目(61973033)。

摘　　要：为研究鸭式布局双旋弹受控状态下的动态响应规律,对弹丸角运动特性及转向响应特性进行理论分析。基于7自由度刚体弹道模型,求解弹丸受控状态下的攻角瞬态及稳态解析解,并推导弹丸瞬态及稳态转向响应解析表达式。研究控制指令更新周期、射角、转速及初速对转向响应特性的影响。研究结果表明:输入控制力方向对转向响应相移角影响较小;控制指令更新周期较短时,在弹道顶点相移角瞬态解与稳态解相差较大,采用瞬态解修正后弹丸横纵向耦合程度较低,随着指令更新周期的增大,转向响应相移角瞬态解逐渐趋于稳态解;相移角稳态解随转速增加而减小,随初速增加而增加。通过实验数据验证了理论的正确性。研究结果可为鸭式布局双旋弹二维修正控制系统分析设计提供理论依据。In order to study the dynamic response law of dual-spinning projectile with canard layout in the state of control,the angular motion and swerving response characteristics of it are analyzed theoretically.Based on the seven degrees of freedom rigid body ballistic model,the transient-state and steady-state analytical solutions of the angle of attack of projectile are solved,and the analytical expressions of projectile s transient-state and steady-state swerving responses are derived.The effects of control command update period,elevation angle,spin rate and initial velocity on swerving response characteristics are explored.The results show that the direction of control force has little influence on the phase shift angle of swerving response.When the update period of control command is short,the transient-state and steady-state solutions of phase shift angle differ greatly at the ballistic apex,and the transverse-longitudinal coupling of projectile is low after using the transient solution correction.With the increase in update period,the transient-state solution of phase shift angle of swerving response gradually approaches to the steady-state solution.In addition,the steady-state solution of phase shift angle decreases with the increase in rotational speed and increases with the increase in projectile velocity.The correctness of the theory is verified by experimental data.This research provides some theoretical basis for the design and analysis of two-dimensional correction control system of dual-spinning projectile with canard layout.

关 键 词：二维弹道修正弹 鸭式布局 角运动特性 转向响应特性 瞬态响应 

分 类 号：TJ012.3[兵器科学与技术—兵器发射理论与技术]