Development and Testing of a 3-D-Printed Cold Gas Thruster for an Interplanetary CubeSat
Development and Testing of a 3-D-Printed Cold Gas Thruster for an Interplanetary CubeSat
复制标题
用于行星际立方体卫星的 3D 打印冷气体推进器的开发和测试
DOI：
10.1109/jproc.2018.2799898
复制
发表时间：
2018
影响因子：
20.6
通讯作者：
M. Sorgenfrei
中科院分区：
文献类型：
--
作者：
E. Lightsey;T. Stevenson;M. Sorgenfrei
本文描述了为生物哨兵航天器生产的冷气姿态控制推进器的研制和试验。生物哨兵航天器是一颗将在地球轨道外运行的立方体卫星。推进器将在展开后降低航天器的旋转速度，在剩余的任务中，它将定期从反作用轮上释放动量。推进器的大部分是一片3-D打印的添加剂材料，其中包括推进剂油箱、进料管和喷嘴。将这些元素组合在一起，可以更有效地利用可用容量，并减少泄漏的可能性。该系统使用高密度商业制冷剂作为推进剂，因为它具有高体积冲量效率，以及低毒性和低储存压力。已经为生物哨兵任务生产了两个工程开发单位和一个飞行单位。介绍了推进器系统的设计、研制和试验情况。
This paper describes the development and testing of a cold gas attitude control thruster produced for the BioSentinel spacecraft, a CubeSat that will operate beyond Earth orbit. The thruster will reduce the spacecraft rotational velocity after deployment, and for the remainder of the mission it will periodically unload momentum from the reaction wheels. The majority of the thruster is a single piece of 3-D-printed additive material which incorporates the propellant tanks, feed pipes, and nozzles. Combining these elements allows for more efficient use of the available volume and reduces the potential for leaks. The system uses a high-density commercial refrigerant as the propellant, due to its high volumetric impulse efficiency, as well as low toxicity and low storage pressure. Two engineering development units and one flight unit have been produced for the BioSentinel mission. The design, development, and test campaign for the thruster system is presented.