轴承摩擦力矩对智能引信控制效率的影响

Influence of Bearing Friction Torque on Control Efficiency of Smart Fuse

为了研究轴承摩擦力矩对修正弹智能引信控制效率的影响,作了如下分析:首先,通过对修正弹的受力分析,设计了相应的控制算法;其次,对所选择的弹体进行气动仿真;最后,通过建立适合修正弹的数学模型,对选择的不同轴承摩擦力矩进行控制效率分析。仿真结果表明,轴承摩擦力矩大于减旋力矩时对有效引信控制时间有影响,故在满足修正能力等基础上,尽量选择轴承摩擦力矩小的轴承。

In order to study effect of bearing friction torque on control efficiency of smart fuze of correction projectile, the following analyses were made： Firstly, through amendment to bomb stress analysis, the corresponding control algorithm was designed. Secondly, aerodynamic simulation for missile was done. Through establishment of a mathematical model suitable for correction projectile, control efficiency of fuze was analyzed. The simulation results show that greater bearing friction torque impacts effective fuze control time. So, when correction capa- bility and electrical requirements are met, try to choose bearing with smaller friction torque.