In-flight operation of the Hayabusa2 ion engine system on its way to rendezvous with asteroid 162173 Ryugu
In-flight operation of the Hayabusa2 ion engine system on its way to rendezvous with asteroid 162173 Ryugu
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Hayabusa2 离子发动机系统在前往与小行星 162173 Ryugu 交会途中的飞行中运行
DOI：
10.1016/j.actaastro.2019.10.005
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发表时间：
2020
影响因子：
3.5
通讯作者：
H. Kuninaka
中科院分区：
文献类型：
--
作者：
K. Nishiyama;S. Hosoda;R. Tsukizaki;H. Kuninaka
日本第二颗小行星探测器Hayabusa2于2014年12月3日成功发射，将在2020年之前从小行星162173琉球返回样本。四个基于电子回旋共振放电的氙离子推进器在航天器进入太空的第一年里推动了547 h。Hayabusa2于2015年12月3日完成了地球重力辅助，随后分别完成了第798和2593 h的离子推进器操作，分别称为Delta-V的第一和第二转移阶段。Deltav的第三转移阶段于2018年1月10日至2018年6月6日进行，在此阶段中，在与琉球交会之前执行了最后的2475h离子推进器操作。4种离子推进器的累计工作时间分别为6,450，11，5,193和6418 h。本文总结了产生1015 m/S增量v的离子发动机系统6515h的飞行，从推进器性能的变化，不同离子推进器组合产生的滚转力矩，以及用位于推进器附近的两个石英晶体微天平测量的航天器表面侵蚀历史。在进行太空飞行的同时，自2012年以来，微波放电中和器的一个工程模型一直在地面上进行长期测试。截至2019年3月15日，它已经积累了55,170 h的二极管模式操作。
Japan's second asteroid explorer Hayabusa2 was successfully launched on Dec 3, 2014, to return a sample from asteroid 162173 Ryugu by 2020. Four xenon ion thrusters based on electron cyclotron resonance discharge propelled the spacecraft for 547 h during its first year in space. Hayabusa2 completed an Earth gravity assist on Dec 3, 2015, followed by 798 and 2593 h of ion thruster operation, called the first and second transfer phases of delta-v, respectively. The third transfer phase of delta-v was conducted from Jan 10, 2018, to Jun 6, 2018, in which the final 2475-h ion thruster operation was executed before the rendezvous with Ryugu. The cumulative operating times for the four ion thrusters are 6,450, 11, 5,193, and 6418 h. This paper summarizes the 6515-h powered flight by the ion engine system, which produced 1015 m/s delta-v, in terms of thruster performance change, roll torques generated by various combinations of ion thrusters, and spacecraft surface erosion history measured by two quartz crystal microbalances located near the thrusters. In parallel with the space flight operation, an engineering model of the microwave discharge neutralizer has been under long-duration testing on the ground since 2012. It has accumulated 55,170 h of diode-mode operation as of Mar 15, 2019.
DOI：
10.2514/6.2010-6862
发表时间：
2010-07
期刊：
--
影响因子：
--
作者：
K. Nishiyama;S. Hosoda;H. Koizumi;Y. Shimizu;I. Funaki;H. Kuninaka;M. Bodendorfer;J. Kawaguchi;D. Nakata
通讯作者：
K. Nishiyama;S. Hosoda;H. Koizumi;Y. Shimizu;I. Funaki;H. Kuninaka;M. Bodendorfer;J. Kawaguchi;D. Nakata