服务型航天器在轨机动窗口

航天技术的发展与应用使在轨服务成为可能,由于各种限制因素的制约,服务航天器需要选择适当的时机,并在一定的时间范围内实施机动以提供在轨服务.提出并界定了机动窗口的概念,分析了机动窗口的制约因素,重点探讨了在机动能量制约下圆轨道之间的机动窗口计算问题.根据服务任务的紧急程度,分别研究了最省能量的漂移式机动窗口和节省时间的快速机动窗口.计算结果表明,共轨部署的服务航天器在能量有限、而时间不限的情况下,比其他部署方式有更多的机动时机,机动能量是制约机动窗口的关键因素.

On orbital maneuver window for servicing spacecraft

The development and implement of space technology made the on-orbital service be possible. On account of kinds of constraints-affection, the maneuver time and time period should be chosen carefully for the servicing spacecraft (SSC) to provide on-orbital services. The concept of maneuver window was put forward and defined, also its constraints was analyzed. The calculation of the maneuver window between circular orbits under the energy limit was discussed with emphasis. The energy-save drifting maneuver window and the time-saving quick maneuver window were studied separately according to the emergency degree of the service mission. Simulation results indicate, under the condition of limited energy and unlimited time, that the co-orbit deployment has more maneuver opportunity than the other modes, and maneuver energy is the key constraint for maneuver window.