飞行器再入轨迹优化是一类最优控制问题。
Spacecraft reentry trajectory optimization is a kind of optimal control problem.
轨迹优化是高超声速滑翔式飞行器关键技术之一。
Trajectory optimization is a key technology of hypersonic glide vehicle.
研究了求解有限推力轨迹优化问题的直接打靶方法。
The direct shooting method solving finite thrust trajectory optimization is studied.
而且，总结了基于能量状态近似法的飞行轨迹优化算法。
In addition, the flight path optimization algorithm based on energy state approximation is summarized.
因此，直接配点法对于再入轨迹优化问题的求解是可行的。
Therefore, the direct collocation method is a viable approach to the reentry vehicle trajectory optimization problem.
因此，直接配点法对于再入轨迹优化问题的求解是可行的。
Therefore, the direct collocation method is a viable approach to lunar probe soft landing trajectory optimization problem.
第四部分研究了复杂曲面上喷涂机器人喷枪轨迹优化问题。
In the fourth part, trajectory optimization of painting robot for complex curved surfaces is studied.
应用轨迹优化方法研究了高性能战斗机机动动作的最优控制问题。
Optimal control of tactical maneuver for a high-performance aircraft is investigated in flight trajectory.
第二部分提出了平面和规则曲面上喷涂机器人喷枪轨迹优化方法。
In the second part, generating paint gun trajectories for plane and regular surfaces are discussed.
轨迹优化是新型高超声速滑翔式再入飞行器方案设计的关键技术之一。
Trajectory optimization is one of the key factors in scheme planning of the new type of hypersonic gliding reentry vehicles.
应用地应力分布指导钻井轨迹，为井眼轨迹优化提供了新的研究方法。
Geostress distribution is used to guide drill track, offering a new method to optimize well track.
数控切削加工工艺参数及刀具运动轨迹优化是发挥数控加工设备生产效率的有效途径。
The optimization of NC machining process parameters and the cutting tool path is the available approach of exerting the NC machining equipment productivity.
比较了这几种方法的特点，同时总结了它们应用于战术飞行轨迹优化时共同存在的问题。
It was found that they have the same shortcomings for trajectory optimization in tactical flight.
研究了利用机构输出特性的谐波特征参数进行带有预定时标连杆轨迹优化尺度综合的方法。
The method of optimal dimension synthesis for path generation with prescribed timing by using harmonic characteristic parameters of the planar linkage's output properties is developed in this paper.
在运载火箭概念设计阶段，总体参数的确定结合轨迹优化设计能最大程度地提高设计性能。
The system parameter design combining with the trajectory optimization design can efficiently improve the whole design performance of launch vehicle during its preliminary design.
提出一种适用于钢坯修磨轨迹优化问题的改进蚁群算法，给出一种修磨轨迹优化问题的实用数学模型。
An improved Ant Colony Algorithm (ACA) is presented that can be used to search shortest grinding path for the grinding machine and the grinding path optimization mathematical model is given.
以涡轮和火箭冲压组合动力的工作模式以及飞行器飞行航迹角、迎角等为调参量，构造空天飞行器爬升轨迹优化流程。
The flow chart of optimizing ASP climb track is designed by adjusting some parameters of Euler angle, attack angle, turbine and rocket-ramjet combined cycle work models, etc.
数控系统的快速性、驱动优化和刀具轨迹的充分处理会获得快速精确的程序执行效果，可用于复杂形状加工。
The sum of the control quickness, drive tuning and efficient handling of the tool path is said to yield fast and accurate program execution even when working with complicated shapes.
采用沿约束轨迹的推演计算方法及优化原理对航天飞机自动着陆飞行轨迹进行优化设计。
This paper applies the technique of constrained trajectory propagation and optimal theory to design the autolanding trajectory for a space shuttle.
采用迭代法求解该优化方程来逼近运动轨迹任意处伪活动标架的旋转变换矩阵。
An iteration method is presented to solve the optimization function for approximating the rotation transformation part of the pseudo moving frame at any position of the motion trajectory.
主要关键技术包括参数化特征建模、数控加工切削参数优化、刀具轨迹规划等。
Adopting the main key technologies including feature-based modeling, optimization of cutting parameter, layout of the cutters tracks etc.
主要关键技术包括参数化特征建模、数控加工切削用量优化、刀具轨迹规划等。
Adopting the main key technologies including feature-based modeling, optimization of cutting parameters, layout of the cutters tracks etc.
针对圆(近圆)轨道航天器相对运动的固定时间状态转移问题，提出了一种基于导航点的多脉冲优化轨迹生成策略。
An optimal trajectory generation strategy based on way-points is presented to solve the fixed-time state transition for spacecraft relative motion in a circular orbit.
根据飞剪剪切机构的工作特点，综合考虑连杆运动轨迹、速度和位置角，建立多目标优化模型。
Based on the working feature of flying shear mechanisms and considering the motion track, velocity and position Angle of connecting rod, a multi-objective optimization model is built.
并在运动轨迹的优化与平滑方面进行了探讨。
And a discussion is made in optimization and smoothness of motion path as well.
走刀轨迹的优化对复杂型面的高速高精度加工起着十分关键的作用。
Optimization of cutting path in complex shape machining of CNC machine tools under high speed and accuracy condition is a crucial problem.
最后通过一个“电话上盖凹模加工”实例实现刀具轨迹的优化。
Finally, the tool path optimization has been realized through the example of "a telephone's top head concave mold processing".
归航轨迹的设计和优化对实现翼伞系统的精确空投至关重要。
Design and optimization of homing trajectory is essential for accurate aerial delivery of parafoil system.
采用在初始位置延迟最小时间的方法，获得了双机器人时间优化的无碰撞轨迹。
Adopting the method of delaying minimum time in initial position, the time-optimal and collision avoidance track of dual robots was obtained.
采用在初始位置延迟最小时间的方法，获得了双机器人时间优化的无碰撞轨迹。
Adopting the method of delaying minimum time in initial position, the time-optimal and collision avoidance track of dual robots was obtained.
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