再入飞行器的鲁棒设计技术研究

Robust Design of a Re-Entry Vehicle

本文将鲁棒最优设计技术应用于再入飞行器被动式滚转控制问题 ,分别建立了二次滚转共振和滚转过零问题的鲁棒设计定义和数学模型 ,通过对关键小不对称量 (如rcg,Cl0 ,Cm0 )的容许偏差的限制 ,确保二次滚转共振和滚转过零概率在设计者期望的范围之内。本文给出了一个实际的设计例子 ,并用MonteCarlo随机抽样方法进行验证。结果表明 ,本文的思路是正确的 ,方法是可靠的。

The robust optimal design method is applied to control the roll anomalies for a re entry vehicle in this paper. The ballistic response may be located in the design specifications with a definable probability by optimal allocation of controllable tolerance range of small asymmetries. The method is proved to be reliable to some extent with a design example verified by Monte Carlo sampling.