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2010•Aerospace Control and ApplicationRequires access

Trajectory Optimization of Spacecraft Aero-Assisted Orbital Transfer Problem

Xie Wei-nan

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Abstract

Aiming at the aero-assisted orbital transfer(AOT)problem,a Gauss-pseudospectral method is used to convert an original AOT problem to a discrete nonlinear programming problem,and then the SNOPT algorithm is applied to solve it,thus getting optimal state trajectories.At the same time,variations of spacecraft's flight trajectory,velocity and heat-flow peak value are analyzed when the inclination changes.

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What this paper is about

Aiming at the aero-assisted orbital transfer(AOT)problem,a Gauss-pseudospectral method is used to convert an original AOT problem to a discrete nonlinear programming problem,and then the SNOPT algorithm is applied to solve it,thus getting optimal state trajectories.At the same time,variations of spacecraft's flight trajectory,velocity and heat-flow peak value are analyzed when the inclination changes.

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Available abstract

Aiming at the aero-assisted orbital transfer(AOT)problem,a Gauss-pseudospectral method is used to convert an original AOT problem to a discrete nonlinear programming problem,and then the SNOPT algorithm is applied to solve it,thus getting optimal state trajectories.At the same time,variations of spacecraft's flight trajectory,velocity and heat-flow peak value are analyzed when the inclination changes.

Key concepts: Spacecraft, Trajectory, Orbital maneuver, Trajectory optimization, Control theory (sociology), Gauss pseudospectral method, Transfer problem, Gauss

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