滚转振荡指标在再入无人飞行器上的应用研究

Research of roll oscillation index application on reentry unmanned vehicle

深入研究了飞行品质规范中滚转振荡指标的物理意义,探讨了以侧滑相位描述滚转振荡指标的机理,分析了影响滚转振荡指标边界的三个因素。针对再入无人飞行器各飞行阶段,分析了滚转振荡指标的适用性。最后,基于方向舵交叉控制可以减小滚转速率振荡幅值比的控制策略,针对再入无人飞行器对滚转振荡指标的边界进行了初步拓展,为再入无人飞行器飞行品质指标的制定提供了一种思路。

The physical significance of roll oscillation indexes is analyzed in detail,and the principle of roll oscillation requirements which described by sideslip phase and three factors that affect the requirements boundary are discussed. Applicability of roll oscillations index on reentry unmanned vehicle for diverse flight phases got specific analysis as well in this paper. Finally,based on the roll rate oscillation amplitude ratio which can be diminished by rudder compensation control strategy,the boundary of roll oscillation indexs is preliminarily expanded for reentry unmanned vehicle,which provides an idea for the definition of flying qualities requirements of reentry unmanned vehicle.