最优控制

In this paper,we consider necessary conditions for optional control of second order ordinary differential equation with coefficient control and two point boundary value,thenobtain the inequality of variation.

在这篇文章中，我们考虑控制出现在最高阶系数上二阶常微分方程系统最优控制满足的必要条件，得到了最优控制满足的变分不等式。

Inthe first section,under the non-convex case we are devoted to investigate an optimalcontrol problem for a class of semilinear elliptic type equations which admit exactly twosolutions.By analyzing the property of a soltuion of the state equation and establishing the proper energy estimate,we prove the relaxed control method is fit for our problemand gain the Pontryagin\'s maximum principle.

第一节，在非凸情形下我们致力于一类只有两个解的半线性椭圆型方程的最优控制问题，通过对状态方程解性质的分析并建立适当的能量估计，我们证明了松弛控制方法对本问题的适用性并得到了最优对的Pontryagin\'s最大值原理。

Based on optimal control theory,we studied gliding control of guided bombs for optimizing a certain type of performance index with constraints on control variable and end states.

结合最优控制理论，研究了控制变量和末端状态均有约束的条件下，为了满足某个性能指标最优的要求，制导炸弹的滑翔控制问题。

In this paper, the optimal control problems of landing gear are investigated by using optimal control theory. A nonlinear mathematical model is established.

本文在最优控制理论的基础上，讨论了主动控制起落架的最优控制问题，并建立了一个非线性的数学模型。

The control system of a gas turbine represents a complicated non-linear system. Its optimum control can be reduced to a condition-constrained time-dependent optimal control issue, whose study involves a fairly high degree of difficulty.

燃气轮机控制系统是一个复杂的非线性系统，其最优控制是一个受状态约束的时间最优控制问题，对其研究的难度较大。

According to the principle of gear modification, this paper presented a new method, which determines the modification of spur gear using the dynamic system identification and optimum control theory.

摘 要：提出了一种利用动态系统辨识与最优控制理论相结合确定齿轮修形量的方法：在实际工况下，通过实验采集直齿轮传动系统实际动态信号进行系统辨识，然后求取系统的最优控制，将其转换为振动最小的修形量。

Based on the analysis of linear quadratic optimal system and PID control system,the paper develops a method for PID parameter optimizing,which is obtained from the principles of time-domain designs and optimization for linear quadratic optimal control system.

本文通过对基于时域状态空间描述的线性二次最优控制系统和基于输出反馈的频域PID控制系统的对比分析，提出一种由PID动态补偿网络实现线性二次最优控制的方法，仿真结果验证了该方法的合理性。

According to the principle of thermal equilibrium and considering the complexity of combustion system a new standpoint of representing coal-measurement by heat signal is put forward. Then a self-searching optimal control method for enhancing thermal efficiency is obtained through the optimal wind-coal ratio. Then a computer control system for economic combustion in coal-fired boiler is designed.

通过实现燃煤锅炉最佳风煤比，得出提高锅炉热效率的自寻优控制方案，设计出了用于燃煤锅炉经济燃烧的计算机控制系统。，提出了一种最优控制方案——效率自寻优方法。

Active vibration control to flexile plate were done, to prove calculated results and compare results of speed rate feedback and that of LQG. It is shown that LQG control could suppress more modes.

设计并实施了薄板型结构的振动主动控制试验，验证了计算结果并对速率反馈和最优反馈两种控制方法做了比较，结果表面最优控制比速率反馈对多阶模态的控制效果更好一些。

In view of the influence of perturbance, a discrete LQR optimal controller with constraint control vector to keep the chaser in the scheduled orbit was designed.

考虑到实际绕飞中受到各种摄动的影响，结合最优控制理论设计了控制向量受限的离散LQR最优控制器，将追踪器控制在预定的绕飞轨迹中。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。