飞行器横滚运动的优化方法

引言 轴对称飞行器为了产生一个适合导引规律的空间法向力,在其三通道的飞行控制系统中有一个通道的功用是使横滚运动保持稳定。无坐标变换装置的轴对称飞行器还要求倾斜角是无静差的。本文就此讨论了一个实用的自控非线性横滚运动的优化设计问题。

OPTIMIZATION METHOD FOR VEHICLES ROLL MOTION

In order to yield a space normal force suitable for guidance, the ideal roll motion of an axisymmetric vehicle should be of no static error. Based on the optimization theory for large systems, an optimization model for controllable nonlinear roll motion is established in this paper by coupling the moments and kinematics. The influences of the nonlinear coupling and the autopilot nonlinearity upon rolling static error is analysed comprehensively. By optimizing the multidimensional parameters such as aerodynamic, flight and autopilot ones using a simplex method, the optimal roll motion with practically zero static error can be obtained. A demonstration example on the optimization is given.