In this article, a successive convexification algorithm is presented for real-time ascent trajectory replanning of a multistage launch vehicle experiencing nonfatal dynamic faults, including the faults of thrust, mass flow, and states. This problem presents a challenge for onboard real-time guidance applications due to its nonconvex constraints, such as the heat flux constraints, and the terminal orbit entry constraints, and to its nonlinearities introduced by atmospheric effects, multiphase mass-depletion dynamics, and free flight time. After proper convexification and relaxation, the general replanning strategy and algorithm of postfault multistage launch vehicle ascent trajectory replanning problems are presented, based on a compensation-based initialization method. Numerical simulations show that the presented algorithm converges reliably after only a small number of iterations, and has a good embedded performance, making it suitable for onboard real-time applications.


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    Title :

    Successive Convexification for Ascent Trajectory Replanning of a Multistage Launch Vehicle Experiencing Nonfatal Dynamic Faults


    Contributors:
    Miao, Xinyuan (author) / Song, Yu (author) / Zhang, Zhiguo (author) / Gong, Shengping (author)


    Publication date :

    2022-06-01


    Size :

    2217707 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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