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首页> 外文期刊>IEEE Transactions on Applied Superconductivity >HTS bearings for space applications: reaction wheel with low power consumption for mini-satellites
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HTS bearings for space applications: reaction wheel with low power consumption for mini-satellites

机译：用于太空应用的HTS轴承：适用于小型卫星的低功耗反作用轮

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摘要

Superconducting bearings have very low coefficients of friction. It is promising to exploit this feature of HTS bearings in the construction of reaction wheel systems that consume meager power. Reaction wheel systems that consume little power are particularly suitable for use on mini-satellites where both energy and power are scarce resources. Thus, these mini-satellites can still have attitude control capabilities without prohibitive requirements for total volume and weight of hardware, and power consumption. Here, we will present the design and discuss the performance of a prototype with a 1.9 kg stainless steel wheel of diameter 82.5 mm, and height 75 mm, which can store 3.5 J-sec of angular momentum when it rotates at an angular speed of 15000 RPM. We have performed spin down tests from 7000 RPM down and measured the input power required to sustain rotational speed under a vacuum of 0.01 torr. Implications of the results are discussed.
机译：超导轴承的摩擦系数非常低。有望在消耗微弱功率的反作用轮系统的构造中利用HTS轴承的这一功能。消耗很少动力的反作用轮系统特别适合在能量和动力都稀缺的微型卫星上使用。因此，这些微型卫星仍然可以具有姿态控制功能，而对硬件的总体积和重量以及功耗没有不必要的要求。在这里，我们将介绍设计并讨论具有1.9千克直径82.5毫米，高度75毫米的不锈钢轮的原型的性能，当其以15000的角速度旋转时，它可以存储3.5 J-sec的角动量。 RPM。我们已经从7000 RPM降速进行了降速测试，并测量了在0.01托的真空下维持转速所需的输入功率。讨论了结果的含义。

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