翼型对舵翼气动特性的影响分析

Analysis of Influence of Airfoil on Aerodynamic Characteristics of Rudder

舵翼气动特性直接影响采用舵机修正的制导弹药弹道修正和控制品质,在满足结构限制条件的基础上,一般要求舵翼具有较大的升阻比,且舵翼压心位置变化较小。本文利用ANSYS Fluent软件对几种典型翼型的舵翼结构进行气动仿真,得出不同翼型的舵翼气动特性,为制导弹药用舵机的翼型选型和舵翼设计提供依据。

Aerodynamic characteristics of rudder and fin directly influence trajectory correction and control quality of guided ammunitions which apply actuator to correct. On the basis of satisfying structural constraint,it＇s generally required that the rudder have a larger lift-drag ratio,and pressure center location of rudder varies little. This paper uses ANSYS Fluent software to finish aerodynamic simulation on rudder structure of several typical airfoils,and then it obtains the aerodynamic characteristics of the rudder with different airfoils, which can provide basis for the airfoil selection and the rudder design of guided ammunition actuator.