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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 aerodynamic parameter estimation step of air defense missile was designed and the reasonable criterion of aerodynamic parameter estimation was proposed. The necessary parameters needed for aerodynamic parameter estimation were studied. Based on the engineering design method, an antiaircraft missile aerodynamic parameter estimation method was proposed. This paper mainly studies the methods of estimating the key parameters such as the normal force coefficient, drag coefficient, centroid, moment of inertia, pressure center and damping torque coefficient of air defense missile, and realizes the estimation of the aerodynamic force and aerodynamic torque of a typical air defense missile. As an example, the simulation results verify the rationality of the method for estimating the aerodynamic parameters of air defense missiles provided in this paper.