Using separation theorem of convex set and the time terminal value function equation, we obtain the determining method of optimal terminal time as well as the Maximum principle.
由凸集分离定理及终端时间阈值函数方程，我们获得了最大值原理及最优控制时间的确定方法。
The acceleration time response graphs at desired positions were presented under three load conditions: the maximum dynamic pressure, before separation, after separation.
给出了最大动压、一二级分离前和分离后三种工况下卫星结构的加速度响应历程。
应用推荐