低速滚转弹道导弹的气动弹性特性与稳定技术  

The Aero-Elastic Characteristic of the Low Speed Spinning Ballistic Missile and its Stability Design

作　　者：王志[1] 周军[1] 周凤岐[1] 

机构地区：[1]西北工业大学精确制导与控制研究所,陕西西安710072

出　　处：《测控技术》2007年第10期81-84,共4页Measurement & Control Technology

摘　　要：滚转是弹道导弹的一种新的突防手段,在主动段进行滚动飞行,可以减少强激光照射的驻留时间,有效对抗激光反导。滚转导致弹体气动弹性特性与以正常姿态飞行时相比发生重大的改变,突出表现在弹体固有横振频率以滚转角速度值降低,另一方面,刚性弹体姿态的测量装置与控制装置使弹性信号产生调制现象。由于导弹在飞行中滚速不能保持完全恒定,因此在稳定弹性振动时,必须引入变参数滤波网络以适应振动频率的变化。Spinning is a new kind of method for ballistic missile puncture. In order to survive from laser＇ s attacking, ballistic missile can spin to reduce the dwell time of a beam on a particular point on its surface during the first boosting phase. If the missile is spin- ning, its aero-elastic characteristic will change greatly, and the prominent change is that the frequencies of bending vibration decrease in value by spinning speed. On the other hand, the elasticity signals are modulated by the measurement and control components of rigid body. Because the spinning speed of the missile cannot be keep absolute constant in flight, the filter network with timevarying parameters wiU be applied to adapt the change of vibration frequency.

关 键 词：弹道导弹 滚转 气动弹性 稳定性 

分 类 号：V448.12[航空宇航科学与技术—飞行器设计]