一种基于反设计的气动参数估计方法

Estimate Method of Aerodynamic Parameters Based on Inverse Design

设计了防空导弹气动参数估计步骤,并提出气动参数估计合理的判别准则,研究了气动参数估计所需要的必要参数;结合工程设计方法,提出了一种基于反设计的防空导弹气动参数估计方法。主要研究了防空导弹法向力系数、阻力系数、质心、转动惯量、压力中心、阻尼力矩系数等关键参数的估算方法,实现对典型防空导弹气动力和气动力矩的估算;并以PAC-2导弹为例进行仿真,仿真结果检验了本文提供的防空导弹气动参数估计方法的合理性。

The problem of aerodynamic parameters estimate was focused on. The flow of the method was designed, and the rule judged the rationality was showed. An estimate method of surface to air missile aerodynamic parameters was researched based on engineering. The keys included normal force coefficient, drag coefficient, center of mass, moment of inertia, center of pressure, aerodynamic damping coefficient. The method estimated lift, drag, pitching moment, yawing moment and rolling moment of surface to air missiles. A case on PAC-2 missile was showed. And the result of simulation verified the method.