二维弹道修正弹修正机构气动布局研究

The Study of Aerodynamic Layout for Two-dimensional Trajectory Correction Projectile Canard Rudder Device

由于修正机构是二维弹道修正的执行部分,研究修正机构的合理气动布局是实现二维修正的基础。针对鸭舵式修正机构特点,建立不同气动布局下的舵机模型,并对其进行气动仿真。通过对修正弹弹道模型的仿真,得出鸭舵不同布局下的修正能力。仿真结果表明,鸭舵越靠近导引头端面,修正能力越大。因此,在满足全弹气动布局、飞行稳定、引信基本尺寸基础上,尽量使修正机构靠近导引头端面布置。

Correction mechanism is an operative part of the two-dimensional trajectory correction, the study of the reasonable aerodynamic layout of the correction mechanism is the basis of two-dimensional correction. In view of the features of the canard correction mechanism , the steering gears models were established and made the aerodynamic simulation under the different aerodynamic layouts. Through the cor- rection trajectory model simulation , the capability of correction was received under the different layouts of the duck rudder. The simulation results show that the correction capability is better when the canard is closer to the seeker face. To meet the whole shells aerodynamic lay- out, flight stability and fuse size, the correction mechanism is arranged close to the end face of the seeker.