Optimal low thrust trajectories using differential inclusion concepts

Details Optimal low thrust trajectories using differential inclusion concepts Optimal low thrust trajectories using differential inclusion concepts

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jansc..42..379c&link_type=abstract

Journal of the Astronautical Sciences (ISSN 0021-9142), vol. 42, no. 4, p. 379-393

Computer Science

Performance

Electric Propulsion, Interplanetary Spacecraft, Interplanetary Trajectories, Low Thrust, Optimal Control, Gravitational Effects, Mathematical Models, Nonlinear Programming, Optimization

Scientific paper

A direct optimization method based on differential inclusion concepts has been developed and used to compute low thrust trajectories. This new formulation removes explicit control dependence from the problem statement thereby reducing the dimension of the parameter space of the resulting nonlinear programming problem. A simple example of a two-dimensional gravity-free trajectory involving a maximum velocity transfer to a rectilinear path is discussed. Three interplanetary trajectory examples, an Earth-Mars constant specific impulse transfer, an Earth-Jupiter constant specific impulse transfer, and an Earth-Venus-Mars variable specific impulse gravity assist, are also included. An evaluation of the technique's performance is provided.

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