Multidisciplinary Optimization of Aerocapture Maneuvers

A multidisciplinary‐multiobjective optimization of aerocapture maneuvers is presented. The proposed approach allows a detailed analysis of the coupling among vehicle′s shape, trajectory control, and thermal protection system design. A set of simplified models are developed to address this analysis a...

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Bibliographic Details
Published in:Journal of artificial evolution and applications 2008-01, Vol.2008 (1)
Main Authors: Armellin, Roberto, Lavagna, Michèle
Format: Article
Language:English
Subjects:
Aerospace engineering
Algorithms
Atmosphere
Efficiency
Mars
Optimization
Ordinary differential equations
Studies
Vehicles
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Summary:A multidisciplinary‐multiobjective optimization of aerocapture maneuvers is presented. The proposed approach allows a detailed analysis of the coupling among vehicle′s shape, trajectory control, and thermal protection system design. A set of simplified models are developed to address this analysis and a multiobjective particle swarm optimizer is adopted to obtain the set of Pareto optimal solutions. In order to deal with an unconstrained multiobjective optimization, a two‐point boundary value problem is formulated to implicitly satisfy the constraints on the atmospheric exit conditions. The trajectories of the most promising solutions are further optimized in a more refined dynamical system by solving an optimal control problem using a direct multiple shooting transcription method. Furthermore, a more complete vehicle control is considered. All the simulations presented consider an aerocapture at Mars with a polar orbit of 200 km of altitude as target orbit.
ISSN:1687-6229
1687-6237
DOI:10.1155/2008/248798