转速闭锁对远程弹箭的影响  

Effect of Roll Locking on Long-range Missile

作　　者：李臣明[1] 刘怡昕[1] 

机构地区：[1]解放军炮兵学院南京分院,南京211132

出　　处：《弹道学报》2010年第1期45-48,共4页Journal of Ballistics

摘　　要：针对远程弹箭研制过程出现的飞行不稳定现象,研究了远程弹箭诱导滚转力矩与诱导侧向力矩的形成机理,推导了在诱导滚转力矩与诱导侧向力矩作用下转速闭锁与似月运动的形成条件,对转速闭锁的形成进行了数值仿真验证.结果表明,转速闭锁的存在使火箭无法达到设计转速,使远程弹箭做较长时间的大振幅锥形运动,全弹道阻力增大、射程减小,严重时会造成飞行失稳.通过减小诱导滚转力矩和发射初始扰动、适当增大导转力矩等方法可对其进行抑制.Aiming at the unstable problem during the development process of long-range missile,the forming mechanisms of revulsive roll moment and revulsive side moment were studied.The forming conditions of roll locking and similar-moon movement were studied under the effects of revulsive roll moment and revulsive side moment.In order to validate the roll locking and similar-moon movement of the missile,the simulation was carried out.The results show that the rocket can t reach the design rotate speed because of roll...

关 键 词：高空弹道 远程弹箭 转速闭锁 似月运动 

分 类 号：TJ760.1[兵器科学与技术—武器系统与运用工程]