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The orbit deployment strategy of OOS system for refueling near-earth orbit satellites

机译:OOS系统为近地轨道卫星加油的轨道部署策略

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Extend lifetime of near-earth orbit satellites by on-orbit refueling has significant economic benefits, while the orbit deployment strategy of the on-orbit servicing (OOS) system which implements the refueling task directly affects the efficiency of on-orbit refueling mission. Three orbit deployment modes were proposed, including ground deployment, low earth orbit (LEO) deployment and the same orbit deployment. For the client satellites to be refueled on near-earth orbit including LEO, medium earth orbit (MEO) and geosynchronous orbit (GEO), the three deployment modes were compared quantitatively based on two evaluation indicators: the refueling response time and the economic benefits. The comparing results showed that for MEO and GEO client satellites, it is appropriate to adopt the same orbit deployment mode, while for LEO client satellites, ground deployment mode is more suitable. As the maximum economic benefits can be earned to refuel GEO client satellites, the orbit deployment scheme of OOS system for refueling GEO client satellites was further studied. A new architecture of OOS system called "1 +N" consist of 1 fuel storage station and N refueling vehicles was proposed. The fuel storage station carries a great deal of fuel, running on orbit steadily. The refueling vehicles maneuver on GEO and implement the refueling operations for GEO client satellites. If the vehicles run out of fuel, they arrive at the station to be refueled. The weight and orbital altitude of fuel storage station, the number, weight, orbital altitude and orbital phase of refueling vehicles are the key parameters of the orbit deployment scheme. The mathematical model for optimizing the scheme was constructed, which takes shorten the refueling response time and lower the cost of OOS system as multi-objective. The calculation process of the optimization was explained. By analyzing the optimization results, the optimal orbit deployment scheme of OOS system containing 1 fuel storage station and 4 to 6 refueling vehicles was proposed.
机译:通过在轨加油来延长近地轨道卫星的寿命具有显着的经济效益,而执行加油任务的在轨服务(OOS)系统的轨道部署策略直接影响着在轨加油任务的效率。提出了三种轨道部署模式,包括地面部署,低地球轨道(LEO)部署和同一轨道部署。对于要在近地轨道上加油的客户卫星,包括LEO,中地球轨道(MEO)和地球同步轨道(GEO),根据两个评估指标对三种部署模式进行了定量比较:加油响应时间和经济效益。比较结果表明,对于MEO和GEO客户卫星,宜采用相同的轨道部署方式,而对于LEO客户卫星,地面部署方式更为合适。由于可以为GEO客户卫星加油而获得最大的经济利益,因此对OOS系统为GEO客户卫星加油的轨道部署方案进行了进一步研究。提出了一种新的OOS系统架构,称为“ 1 + N”,它由1个燃料存储站和N个加油车组成。燃料储存站运送大量燃料,并在轨道上稳定运行。加油车在GEO上进行机动,并为GEO客户卫星实施加油操作。如果车辆燃料不足,它们将到达加油站。加油站的重量和轨道高度,加油车的数量,重量,轨道高度和轨道相位是轨道部署方案的关键参数。建立了优化方案的数学模型,缩短了加油响应时间,降低了OOS系统的多目标成本。说明了优化的计算过程。通过对优化结果的分析,提出了一个包含1个加油站和4至6辆加油车的OOS系统的最优轨道部署方案。

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