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Identification of the optimal switching for range-optimal atmospheric flight trajectories

✍ Scribed by HANS SEYWALD

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
840 KB
Volume
18
Category
Article
ISSN
0143-2087

No coin nor oath required. For personal study only.

✦ Synopsis

The optimal switching structure associated with long-flight-time, range-optimal trajectories for a highperformance atmospheric flight vehicle is determined. The optimal solution, obtained from Pontryagin's minimum principle, consists of six arcs in total. Four arcs are riding the active dynamic pressure limit, one with singular control setting. Identification of the optimal switching structure was achieved with the direct optimization technique TODI (trajectory optimization via differential inclusion). Implemented in a loworder discretization scheme based on the trapezoidal rule, this code has only modest smoothness requirements and is well suited for problems with discontinuous control jumps at a priori unknown switching times.

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