The invention discloses a method for quickly generating a feasible trajectory of pneumatic auxiliary orbit descending maneuver, which belongs to the field of aerospace and comprises the following steps: establishing a polar coordinate dynamic model and an extraatmospheric flight dynamic model of a Mars probe flying in the Mars atmosphere; generating a target orbit height sequence, and using the generated target orbit height sequence to carry out sequence dichotomy to solve a collaborative pulse quantity; constructing a nonlinear mapping relation between the collaborative pulse and an outlet telecentric point; solving a univariate nonlinear equation about the pulse delta Vn through a bisection method; and according to the steps S4 and S3, a feasible multi-circle pneumatic auxiliary orbit descending track and a state profile are obtained. By the adoption of the quick generation method for the feasible trajectory of the pneumatic auxiliary orbit descending maneuver, pneumatic task planning of any number of turns can be achieved, the calculation speed is high, and the method can be applied to the task requirement of online trajectory planning; the trajectory result can be combined with an existing nonlinear programming algorithm, and the optimality of the trajectory is further improved.

    本发明公开了一种气动辅助降轨机动可行轨迹快速生成方法,属于航空航天领域,包括建立火星探测器在火星大气中飞行的极坐标动力学模型和大气外飞行动力学模型;生成目标轨道高度序列,使用生成的目标轨道高度序列进行序列二分法求解协同脉冲量;构建协同脉冲与出口远心点非线性映射关系;通过二分法求解关于脉冲ΔVn的单变量非线性方程;根据S4和S3得到可行的多圈气动辅助降轨轨迹和状态剖面。本发明采用上述的一种气动辅助降轨机动可行轨迹快速生成方法,不仅能够实现任意圈数的气动任务规划,而且计算速度快,可应用于在线的轨迹规划的任务需求;轨迹结果可与现有的非线性规划算法结合,进一步提升轨迹的最优性。


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    Titel :

    Method for rapidly generating feasible trajectory of pneumatic auxiliary orbit descending maneuver


    Weitere Titelangaben:

    一种气动辅助降轨机动可行轨迹快速生成方法


    Beteiligte:
    QIAO DONG (Autor:in) / FENG XIANGDONG (Autor:in) / HAN HONGWEI (Autor:in)

    Erscheinungsdatum :

    12.11.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B64G Raumfahrt , COSMONAUTICS



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