鸭舵形状及位置对制导榴弹气动特性的影响

为提升固定式鸭舵全弹的气动效率,对制导榴弹弹道修正组件进行结构设计以及气动特性分析.基于155 mm口径榴弹设计3种不同形状的鸭舵,利用数值仿真软件对3种舵片进行气动仿真,通过3种设计方案滚转力矩以及升阻比的对比进行优选,并对不同安装位置对气动特性的影响进行分析,得出气动效率相对较好的鸭舵形状以及轴向布局.结果表明:该设计具有一定的工程应用价值,可为基于鸭式舵的简易制导榴弹气动设计提供参考.

Influence of Canard Rudder Shape and Position on Aerodynamic Characteristics of Guided Grenade

In order to improve the aerodynamic efficiency of the fixed duck rudder bomb, the structure design and aerodynamic characteristics analysis of the guided grenade trajectory correction component are carried out. Based on the 155 mm caliber grenade, three types of canard rudders are designed, and the three types of rudder blades are simulated by numerical simulation software. The three design schemes are compared with the rolling torque and lift-drag ratio for optimization, and the influence of different installation positions on the aerodynamic characteristics is analyzed, and the duck rudder shape and axial layout with relatively good aerodynamic efficiency are obtained. The results show that the design has certain engineering application value and can provide a reference for the aerodynamic design of simple guided grenade based on the canard rudder.