深空探测器飞行动力学计算与参数优化分析

根据航天(宇航)动力学理论,建立了深空探测器在空间复杂力场作用下的动力学方程;编制了探测器与空间各星体间相对位置和相对运动的管理软件;对空间各星体的引力进行了实时分析与计算;并以土星探测器为例,研究了其飞行参数的优化设计以及飞行轨道的计算机仿真。仿真结果与国外某土星探测器的飞行轨道及飞行时间基本吻合,从而证明所建立的计算模型是正确的,数值计算方法和程序是可行的。

Computing of Flying Dynamics and Analyzing of Parameters Optimization of a Deep Space Probe

This paper investigates the dynamic modeling,the equations solving,and the optimization of flying parameters of a deep space probe.First,the authors establish the motional differential equations of the probe in complex force fields according to the flying dynamics;Then,they compile the network managing software of relative positions and relative motions between the probe and each heavenly body,and make the analyzing and computing to gravitational coefficients of all of the planets in real time;Lastly,taking the Saturn's probe as on example,the authors finish numerical value solving to the dynamic equations of the probe,and develop parameter optimization method and computer imitation technology on the basis of computing results.The computation and imitation results are well agree with the flying orbit and the time of the Saturn's probe abroad.These also show the correctness and the reliability of above-mentioned method.The method in the paper is of very important theoretical significance and reference value for our national deep space exploration engineering.