某型旋转制导炸弹自旋频率设计

Design of Self-spin Frequency for Rotating Guided Bomb

关键词:  自旋频率  制导炸弹  旋转炸弹

Key words:  Self-spin frequency  Guided bomb  Rotating bomb

摘要:

提出了将旋转导弹单通道控制原理应用于制导炸弹控制系统设计的构想，并对旋转制导炸弹自旋频率设计进行了初步的探索。主要结合制导炸弹的运动特性，通过分析影响自旋频率设计的主要因素，给出了自旋频率的设计原则：避免产生滚转共振，在飞行过程中保持动态稳定和考虑继电式舵机的换向频率。在此基础上，以某旋转制导炸弹为例，计算了其动力系数、固有频率，最后得出了满足设计要求的自旋频率上限和下限。该设计方法也可应用于再入旋转机动弹头的自旋频率设计。

Abstract:

In this paper，the principle of the single channel control of rotating missile is applied to the design of the control system in guided bomb，and the self-spin frequency for rotating guided bomb is designed.By analyzing the main influencing factors on self-spin frequency design combine with the characteristics of guided-bomb movement，the design principles are given in this paper：avoiding roll resonance，maintaining dynamic stability during the process of flight and considering the reversing frequency of the relay control actuator.On this basis，this paper takes a rotating guided bomb as an example of designing self-spin frequency，calculating its dynamic coefficient，natural frequency and giving its self-spin frequency of upper and lower limits finally.The method in this paper can also be used in designing the self-spin frequency of the reentry rotating maneuvering warhead.