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THE ROSETTA PROPULSION SYSTEM

机译:罗塞塔推进系统

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摘要

Rosetta is the European Space Agency’s mission which is aimed to comet Churyumov-Gerasimenko to perform a close inspection of its nucleus and of its coma. Its propulsion system is a bi-propellant system capable of providing both functions of attitude control and of V manoeuvring. The system is capable to deliver pure torques and pure forces for manoeuvring around the comet with a very weak gravitational field. The system operates mainly in blow-down mode, but it can be repressurised in flight twice for delivering with high efficiency and constant performance a total V of 2,300 m/s. This large V is required to rendezvous the comet and be inserted into its orbit. The wide range of operating conditions presented technical challenges from the standpoint of thrusters design as well as system configuration. In addition to the technical aspects, the programme presented also very challenging AIT aspects due to the one-year launch delay that imposed a re-scheduling of the entire mission.
机译:罗塞塔(Rosetta)是欧洲航天局的任务,其目的是对丘留莫夫-格拉西缅科彗星进行仔细检查,以检查其核和昏迷情况。它的推进系统是一种双推进系统,既可以提供姿态控制功能,又可以提供manV操纵功能。该系统能够以非常弱的引力场传递纯扭矩和纯力,以在彗星周围操纵。该系统主要在排污模式下运行,但可以在飞行中对其进行两次加压,以实现高效率和稳定的性能,总V为2,300 m / s。需要较大的V会合彗星并将其插入其轨道。从推进器设计以及系统配置的角度来看,广泛的运行条件提出了技术挑战。除了技术方面,该计划还提出了非常具有挑战性的AIT方面,因为一年的发射延迟迫使整个任务进行了重新安排。

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