In this paper, a trajectory optimization strategy for the hypersonic morphing aircraft is proposed, and the AMPI method is used to generate the online trajectory with initial state errors. Firstly, the aerodynamic model and propulsion model of the hypersonic morphing aircraft were established considering the wingspan and the scramjet. Secondly, the optimization strategy was proposed via Gauss pseudospectral method considering the control variables including angle of attack (AOA) and wingspan. The optimized trajectory met the final constraints and path constraints with the objective to minimize the time of the ascent phase. Then, the AMPI method was used to generate online trajectory without solving OCP or NLP on the base of trajectory database calculated by the optimization strategy. The simulation results indicate high accuracy of AMPI method and the final errors corresponding to different initial errors were acceptable. The mean value of the CPU time of the method was about 0.1 second, which shows real-time capability.


    Access

    Download


    Export, share and cite



    Title :

    Onboard Trajectory Generation of Hypersonic Morphing Aircraft


    Contributors:
    Chenxin Zhang (author) / Yankun Zhang (author) / Changzhu Wei (author)


    Publication date :

    2021




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





    Intelligent Morphing Decision of Hypersonic Aircraft Based on Neural Network

    Linfei, Hou / Honglin, Liu / Ting, Yang et al. | Springer Verlag | 2024


    Trajectory Optimization for Hypersonic Aircraft Guidance

    R. L. Schultz / M. J. Hoffman / A. M. Case et al. | NTIS | 1992


    Optimal Trajectory Control of Morphing Aircraft in Perching Maneuvers

    Wickenheiser, Adam M. / Garcia, Ephrahim | Wiley | 2012


    Trajectory Optimization for Hypersonic Aircraft Guidance

    Schultz, R. L. / Hoffman, M. J. / Case, A. M. et al. | British Library Conference Proceedings | 1992