轨迹

In this paper, shooting methods based on an initial variable guess technique are proposed to solve the TPBVP, and the optimal landing trajectory is obtained.

本文利用一种基于初值猜测技术的打靶法求解这个两点边值问题，得到软着陆最优轨迹。

The simulation results demonstrate that an optimal reentry trajectory which satisfies the constraint conditions can be generated in 10 seconds and verifies the validity, robustness and feasibility of the algorithm.

仿真结果表明，这样处理只需10 s左右的时间便能产生一条满足约束条件的再入优化轨迹，验证了模型处理和算法的有效性、鲁棒性和可行性。

The optimal climbing trajectory is obtained by keeping the lift control at optimal lift-to-drag ratio.

爬升轨迹则是以控制变数维持在最佳升阻比状态下爬升。

Simulation results indicate that genetic algorithm can solve this problem and find the global optimal value efficiently ,and it's insensitive to the initial guess. The optimal reentry trajectory can meet the requirements of attitude, heat flux and velocity.

仿真结果表明提出的方法能够较快地搜索到全局最优解，对初始猜测值不敏感，能够方便用于RLV的再入轨迹方案选择和优化设计。

He probability of low altitude penetration can be highly improved by the TF/TA optimal trajectory planning.

F/TA最优轨迹规划技术可以在很大程度上提高突防飞行器的突防概率，是实现飞行器低空突防飞行的关键技术。

A parametric approach is proposed for the optimal trajectory tracking control problem of space rendezvous by using the eigenstructure assignment and the model reference method of linear systems.

基于线性系统的特征结构配置和模型参考方法，提出了一种空间最优交会轨迹跟踪控制的参数化方法。

Keywords horizontal well;optimal design;trajectory control;technical measure;drilling fluid

超深水平井；优化设计；轨迹控制；技术措施；钻井液

Although the study doesn't find the optimal climbing trajectory, the attempts and the associated observations are listed in the thesis for the further researches.

本文列出所有的尝试，期能参考本文中的经验找出更好的方法，进而找出符合最佳化理论的最佳爬升轨迹。

This dissertation study the machining method for multi-axis NC high speed milling, tool path generation calculation and interference treatment and optimum programming.

本文研究了多坐标数控高速铣加工中的加工方法、刀具轨迹生成计算以及干涉处理和优化计算方法。

Due to the dragging force, trajectories of spacecraft circling planetoid can departure from the standard taper curve orbit which is obtained by the two-body hypothesis.

绕小行星运行的航天器由于受到摄动力的影响，运行轨迹会偏离二体假设下的圆锥曲线轨道。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。