火星探测无动力借力飞行轨道研究

对无动力情形的借金星引力辅助变轨进行了研究,并完成了火星探测轨道的设计;首先使用Jacobi积分得到了蒂塞朗准则,在利用速度矢量图对借力飞行轨道的特性进行分析后,得到了Williams提出的C3匹配法,证明了蒂塞朗准则和C3匹配的同一性;在搜索借力飞行的可行性转移轨道中,采用C3匹配对借金星引力的火星探测轨道进行了仿真,并对结果进行了分析,最后使用蒂塞朗准则对C3匹配的仿真结果进行了检验。

Unpowered Swing-by Flight Orbit Design for Mars Exploration

An unpowered Venus gravity assisted orbital transfer strategy for Mars exploration is researched and the Mars exploration orbit is designed.The Tisserand criterion is obtained by the Jacobi integral.According to the velocity vector diagram,the characteristics of swingby orbit are analysed,the C3 matching method proposed by Williams is gained and the identity of Tisserand criterion and C3 matching method is proved.In the process of searching feasible transfer orbit of gravity assisted flight,the C3 matching method is adopted and the results of Mars exploration orbit simulations by Venus gravity assisted flight are gained and analysed.The results of the C3 matching simulation by Tisserand criterion are validated.