Periodic Optimal Trajectories with Singular Control for Aircraft with High Aerodynamic Eeciency
نویسندگان
چکیده
Fuel minimum range cruise of aircraft with high aerodynamic ef-ciency is considered as an optimal periodic control problem. Optimality conditions for trajectories with singular arcs and state variable constraints are derived. Computation of periodic optimal trajectories in the case addressed presents strong requirements on the numerical algorithm. Computational diiculties become larger when aerodynamic eeciency is increased and wing loading is decreased. The speciic nature of the numerical problems encountered and the means used to overcome them are described.
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