High-fidelity trajectory optimization for aeroassisted vehicles using variable order pseudospectral method

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dc.contributor.authorChai, Runqi
dc.contributor.authorTsourdos, Antonios
dc.contributor.authorSavvaris, Al
dc.contributor.authorChai, Senchun
dc.contributor.authorXia, Yuanqing
dc.date.accessioned2021-02-16T16:58:19Z
dc.date.available2021-02-16T16:58:19Z
dc.date.issued2020-08-15
dc.description.abstractIn this study, the problem of time-optimal reconnaissance trajectory design for the aeroassisted vehicle is considered. Different from most works reported previously, we explore the feasibility of applying a high-order aeroassisted vehicle dynamic model to plan the optimal flight trajectory such that the gap between the simulated model and the real system can be narrowed. A highly-constrained optimal control model containing six-degree-of-freedom vehicle dynamics is established. To solve the formulated high-order trajectory planning model, a pipelined optimization strategy is illustrated. This approach is based on the variable order Radau pseudospectral method, indicating that the mesh grid used for discretizing the continuous system experiences several adaption iterations. Utilization of such a strategy can potentially smooth the flight trajectory and improve the algorithm convergence ability. Numerical simulations are reported to demonstrate some key features of the optimized flight trajectory. A number of comparative studies are also provided to verify the effectiveness of the applied method as well as the high-order trajectory planning model.en_UK
dc.identifier.citationRunqi CH, Tsourdos A, Savvaris A, et al., (2021) High-fidelity trajectory optimization for aeroassisted vehicles using variable order pseudospectral method.Chinese Journal of Aeronautics, Volume 34, Issue 1, January 2021, pp. 237-251en_UK
dc.identifier.issn1000-9361
dc.identifier.urihttps://doi.org/10.1016/j.cja.2020.07.032
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/16355
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectVariable orderen_UK
dc.subjectTrajectory designen_UK
dc.subjectSix-degree-of-freedomen_UK
dc.subjectRadau pseudospectral methoden_UK
dc.subjectAeroassisted vehicleen_UK
dc.titleHigh-fidelity trajectory optimization for aeroassisted vehicles using variable order pseudospectral methoden_UK
dc.typeArticleen_UK
dcterms.dateAccepted2020-07-11

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