基于Gauss伪谱法的平流层飞艇上升段航迹规划  

Ascent Trajectory Planning for Stratospheric Airship Based on Gauss Pseudospectral Method

作　　者：张礼学[1] 王中伟[1] 杨希祥[1] 宋庆雷 

机构地区：[1]国防科学技术大学航天科学与工程学院 [2]61541部队

出　　处：《上海交通大学学报》2013年第8期1205-1209,1216,共6页Journal of Shanghai Jiaotong University

摘　　要：引入净浮力计算方法,完善了平流层飞艇航迹规划问题的数学模型,并通过对其飞行过程的分析,得出了模型的目标函数和约束条件.基于Gauss伪谱法对时间最少和能量最省2种情况下的平流层飞艇上升段航迹进行了规划.仿真结果表明,飞艇的最短上升时间为2 913.6s,在时间允许的情况下飞艇可以实现零耗能升空.仿真结果可为平流层飞艇的总体设计提供有益参考.The trajectory planning model for stratosphere airship ascent was completed by introducing the net buoyancy calculate method. The objective function and constraints was deduced from the flight charac- teristic analysis of stratospheric airship ascent process. In addition, the minimum ascent time and minimum energy use were simulated based on the Gauss pseudospectral method. The results show that the minimum ascent time for airship is 2 913.6 s; and if the ascent time is abundant, stratospheric airship can fly to 20 km without exhausting any energy. The simulation results can provide useful reference for stratosphere airship integrated design and argument.

关 键 词：平流层飞艇 航迹规划 最优控制 GAUSS伪谱法 

分 类 号：V274[航空宇航科学与技术—飞行器设计]