悬浮子弹降落与悬浮过程弹道特性动力学分析

Dynamic Analysis on Ballistic Characteristic of Suspended Projectile's Falling and Floating Process

为研究悬浮子弹从母弹中抛撒出以后至悬浮稳定之间的降落与悬浮过程弹道特性,在对旋翼下降过程动力学分析基础上,建立了悬浮子弹刚体弹道模型,并利用四元数替代欧拉角的方法进行解算。根据在一定的驱动能量下,使悬浮子弹更快的减速减旋、更长时间的处于悬浮阶段的原则,通过改变相关参数得到了悬浮子弹工作过程中的最佳驱动方式和驱动力矩大小。该研究为后续悬浮弹的悬浮机构设计以及控制策略的研究打下一定的基础。

To investigate ballistic characteristics of the suspended projectile＇s falling and floating during thrown from carrier shell to stable suspension,the suspended projectile＇s rigid body trajectory model which based on dynamic analysis of the falling process of the rotor was build. Then calculation was conducted by quaternion other than Euler angle. According to the principle that with certain driving energy, make the suspended projectile decelerate and despin faster,and be in suspension stage for longer time,the best driving mode and the size of the driving torque can be got by changing relative parameter. The research lays a foundation for the following design and control strategy of the suspended projectile＇s floating mechanism.