| 飞机最短时间爬升轨迹的格点搜寻算法 |
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| 引用本文： | 陈娅莉,董新民,陈勇.飞机最短时间爬升轨迹的格点搜寻算法[J].飞行力学,2009,27(6). |
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| 作者姓名： | 陈娅莉 董新民 陈勇 |
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| 作者单位： | 空军工程大学,工程学院,陕西,西安,710038 |
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| 摘 要： | 以飞机在垂直平面的运动方程为基础,采用线性时间负荷控制的飞行模式,提出了求解飞机最短时间爬升轨迹的格点搜寻算法.该方法视飞机为一质点,以此为基础计算出每个相邻格点的时间间隔,最后用h×Ma格点数搜寻法求出飞机最短时间爬升的最优轨迹.数字仿真表明,在规定的爬升范围内用格点搜寻算法可以实现快速的时间响应,得到的最优轨迹能够准确地跟踪设定的性能指标.
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| 关 键 词： | 线性时间负荷 最短时间爬升 最优轨迹 格点搜寻 |
Grid-Search Algorithm for Minimum Time-to-Climb Trajectory |
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| CHEN Ya-li,DONG Xin-min,CHEN Yong.Grid-Search Algorithm for Minimum Time-to-Climb Trajectory[J].Flight Dynamics,2009,27(6). |
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| Authors: | CHEN Ya-li DONG Xin-min CHEN Yong |
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| Institution: | CHEN Ya-li,DONG Xin-min,CHEN Yong(The Engineering Institute,Air Force Engineering University,Xi'an 710038,China) |
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| Abstract: | To solve the problem of minimum time-to-climb, building a dynamic model of motion in the vertical direction and taking the flight mode as the linear load control. Suggesting an adjacent grid arithmetic based on the mass point motion model of the aircraft, which is used for computing the time consume between two adjacent grids. Then, the minimum time for climbing is gained by the h×Ma grid-searing method. In conclusion, the computer simulation shows that, this method can acquire fast time respond in the designated climb scope, and the optimal trajectory can achieve a designed performance index perfectly. |
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| Keywords: | linear load factor minimum time-to-climb optimal trajectory grid-search |
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