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Variable thrust angle constant thrust collision avoidance maneuver under thrust failure

机译：推力失效下的变推力角恒推力防撞回旋

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This paper addresses the application of variable thrust angle (VTA) approach for constant thrust collision avoidance maneuver under thrust failure in the y-axis. In particular, the collision avoidance maneuver process is divided into in-plane motion and out-plane motion based on the relative motion dynamic model. For the in-plane motion, the calculation of thrust angle control lows is cast into a convex optimization problem by introducing a Lyapunov function subject to linear matrix inequalities, and the robust controllers satisfying the requirements can be designed by solving this optimization problem. For the out-plane motion, a new algorithm of constant thrust fitting is proposed through the impulse compensation and the fuel consumption under the theoretical continuous thrust and the actual constant thrust is calculated and compared by using the method proposed in this paper. At last, the proposed method has the advantage of saving fuel is proved and the actual constant thrust switch control laws are obtained through the isochronous interpolation method, an illustrative example is provided to show the effectiveness of the proposed control design method.
机译：本文讨论了可变推力角（VTA）方法在y轴推力失效下进行恒定推力避免碰撞机动的应用。特别地，基于相对运动动力学模型，避免碰撞机动过程分为平面内运动和平面外运动。对于平面内运动，通过引入线性矩阵不等式的Lyapunov函数，将推力角控制低点的计算转化为凸优化问题，并且可以通过解决该优化问题来设计满足要求的鲁棒控制器。对于平面外运动，通过脉冲补偿提出了一种新的恒推力拟合算法，并用本文提出的方法计算了理论连续推力下的油耗，并计算出实际的恒推力，并进行了比较。最后，本文提出的方法具有节省燃料的优点，并通过等时插值法获得了实际的恒定推力开关控制律，并通过实例说明了该控制设计方法的有效性。

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