In this paper, the supporting capacity of a ferrofluids (FFs) ring bearing is investigated experimentally and numerically. The bearing consists of a floating plate, a substrate, and a FFs ring sandwiched between them. The FFs ring is formed and restrained by applying a ring magnet below the substrate. For a FFs ring with a thickness of 0.25 mm, the maximum supporting force is about 1.78 N. Numerical analysis reveals that, compared with the Laplace force, the magnetic force plays a dominating role in the total supporting force. Such a liquid ring support may give underlying applications for frictionless bearings or precision positioning systems.

中文翻译：

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铁磁流体轴承的支撑能力

本文通过实验和数值研究了铁磁流体轴承的支撑能力。轴承由一个浮动板，一个基板和一个夹在它们之间的FFs环组成。通过在基板下方施加环形磁体来形成并限制FFs环。对于厚度为0.25 mm的FFs环，最大支撑力约为1.78N。数值分析表明，与拉普拉斯力相比，磁力在总支撑力中起着主导作用。这种液环支撑件可为无摩擦轴承或精密定位系统提供基础应用。