【摘要】 对发汗烧蚀问题的自校正控制进行了讨论 ;给出了一个基于实际观测的自校正控制算法 .根据内部测温及对烧蚀速度的观测 ,确定气动加热面边界热流密度 ;由热平衡方程及热阻滞函数的特性给出自校正控制律 .使受热介质以一定的速度烧蚀 ;数据试验显示此方法可以取得理想的控制效果更多还原

【Abstract】 Transpiration cooling control is an effective method to protect the structure in high temperature gas flow environment. In this paper, a self tuning control problem of transpiration ablation system with moving boundary is discussed. According to the observation of the temperature and the speed of ablation, the self tuning control input is obtained by using heat equilibrium equation and the characteristic of heat blockage function. The numerical simulation shows that the approach is valid in developing numerical technique.更多还原