摘要
为了研究基于"预置质量块"式弹道修正力系下的某低旋尾翼修正弹的飞行稳定性,对弹丸进行修正力系作用下的受力过程进行分析。通过建立其6D弹道模型以及复攻角运动方程,对推力作用下的弹箭追随稳定性以及动态稳定性进行了理论及仿真分析。分析结果表明,在δ_(2P)<δ_(pm)条件下,弹箭追随稳定性满足要求;考虑缓变系数影响,二圆运动阻尼系数均小于0条件下,弹箭动态稳定性得到保证。证明基于"预制质量块"的弹道修正弹满足飞行稳定性要求。
In order to study the flight stability of the new "pre-set mass" low-spinning fin-stabilized correction projectiles under the correction force system,and analyze the process of projectile under the corrective force. By establishing the 6D ballistic model and the complex angle of attack equations of motion,the tracking stability and dynamic stability of the projectile are analyzed under the thrust force in the way of theoretical and simulation analysis. The analysis results show that under the condition of |δ2P|<δpm,the projectile meets the tracking stability. And considering the influence of the gradual change of coefficient,the dynamic stability of the projectile is guaranteed when the damping coefficients of epicyclic motion are all less than 0. It is proved that the trajectory correction projectile based on the "pre-set mass" meets the flight stability requirements.
作者
邢炳楠
张志安
高光发
雷晓云
盛娟红
XING Bing-nan;ZHANG Zhi-an;GAO Guang-fa;LEI Xiao-yun;SHENG Juan-hong(Key Laboratory of Intelligent A mmunition Technology,School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)
出处
《火力与指挥控制》
CSCD
北大核心
2019年第3期96-101,共6页
Fire Control & Command Control
基金
国家自然科学基金资助项目(1772160)
关键词
弹道修正
预置质量块
角运动
飞行稳定性
trajectory correction
preset mass
angular motion
flight stability
