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Low thrust gravity assist transfer trajectory design and optimization based on hybrid optimization method

机译：基于混合优化方法的低推力重力辅助转移轨迹设计与优化

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Low thrust gravity assist(LTGA) trajectory design and optimization is a key point in deep space trajectory design. The solution space of LTGA problem is complex and has many local minimum points. In this paper, a hybrid design method is brought. First the optimization model is brought based on discrete impulse and B plane model. Then global optimization methods are used for searching problem initial values. Last based on the former search, sequential quadratic programming is used for getting the accurate answer. Numerical simulations have demonstrated the effectiveness of the global optimization algorithm for getting the initial values of variables. Also reliability of the approach proposed can be validated.
机译：低推力重力辅助（LTGA）轨迹设计和优化是深度空间轨迹设计的关键点。 LTGA问题的解决方案空间是复杂的，并且具有许多局部最小点。本文带来了一种混合设计方法。首先，优化模型基于离散脉冲和B平面模型。然后，全局优化方法用于搜索问题初始值。最后基于以前的搜索，顺序二次编程用于获得准确的答案。数值模拟已经证明了全局优化算法用于获得变量初始值的有效性。还可以验证所提出的方法的可靠性。

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