在轨服务飞行器自动寻的段的接近策略分析

摘要

在轨服务飞行器在自主式在轨服务系统中发挥重要作用,实现在轨服务飞行器与目标服务对象间的交会是在轨服务任务过程的必要阶段.为优化交会过程自动寻的段的接近策略,对基于Hill方程的双冲量机动策略进行了分析,讨论了在轨服务飞行器的初始轨道参数和机动时间选择对接近过程的影响.运用典型算例,得出两航天器的轨迹、速度和机动消耗在不同坐标系的变化规律,指出了算例中机动消耗随在轨服务飞行器初始参数变化的特点.%An orbital service vehicle (OSV) plays an important role in the automatic on-orbit service (00S) system. The rendezvous and docking between the OSV and a service target is an inevitable process during the OOS mission. In order to optimize the auto-homing approaching strategy for rendezvous and docking, the double impulse maneuvering strategy based on Hill equation is analyzed, and the influence of different OSV initial parameters and different maneuvering periods on approaching process is discussed in this paper. According to a typical case, the variation rule of the trajectory, velocity and fuel consumption in different coordinates is induced, and the variation feature of fuel consumption with different OSV initial parameters is given in this paper.