航空学报 > 1994, Vol. 15 Issue (11): 1298-1305

用参数最优化方法计算最优飞行轨迹

刘同仁   

  1. 北京航空航天大学509教研室,北京,100083
  • 收稿日期:1992-02-25 修回日期:1993-04-01 出版日期:1994-11-25 发布日期:1994-11-25

A CALCULATION OF OPTIMAL FLIGHT TRAJECTORY USING THE PARAMETERIZED OPTIMIZATION METHOD

Liu Tongren   

  1. Faculty 509 of Beijing University of Aeronautics and Astronautics,Beijing 100083
  • Received:1992-02-25 Revised:1993-04-01 Online:1994-11-25 Published:1994-11-25

摘要: 介绍了如何应用参数最优化方法将具有状态变量不等式约束和控制变量不等式约束以及终端等式约束的最优控制问题转化为静态非线性规划问题,并提出了将求解静态约束最优化问题的系贯加权因子法,即SWIFT(SequentialWeight-IncreasingFactorTechnique)法推广为求解动态约束最优化问题的增广SWIFT法。最后用计算美国航天飞机的返回最优轨迹说明了该法的可行性。

关键词: 最优控制, 参数最优化方法, 非线性规划, 最优飞行轨迹

Abstract: An introduction is given to the transfonnation of optimal control problem with state inequality constraints,control inequality constraints and tenninal constraints into static nonlinear programming problem with parameterized optimization method, and a new augmented-SWIFT is also presented.The SWIFT(Sequential Weight-Increasing Factor Tech-nique)is used in static constrained optimization problem whereas the new auginented-SWIFT is extended to calculate dynamic constrained optimal control problem,Finally,the feasibility of this algorithm is certified by an example of a reentry optimal trajectory.

Key words: optimal control, parameterized optimization method, nonlinear programming, optimal flight trajectory

中图分类号: