喷流控制飞行器气动参数辨识方法研究

Study on aerodynamic parameter identification method for aircraft with jet thruster control

研究了喷流控制飞行器的气动建模与参数估计方法,以某飞船返回舱飞行试验为例,通过辨识得到了返回舱再入过程中的气动导数、喷流力矩放大系数等重要气动参数。该方法是研究喷流干扰效应的一种有效途径,辨识结果有助于提高返回舱姿态控制的准确度。

The aerodynamic and jet control moment modeling and parameter identification method for spaceship reentry capsule is investigated.And take example for reentry capsule,the Aerodynamic moment parameters and jet control moment parameters are estimated using measured data in reentry capsule flight-test.This identification method is a feasible approach for researching the lateral jet interaction,and the results are helpful to increase the accuracy of flight control.