Instability of Aerostatic Journal Bearings with Porous Floating Bush at High Speeds
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 2008 Recently, demands of higher rotational speeds and rotational accuracy to aerostatic spindles used in machine tools such as a drilling machine for printed circuit board and a milling machine for manufacturing very small precise parts have been remarkably increasing.
MIYATAKE, Masaaki +3 more
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Air Film Temperature and Heat Partition Ratio in Aerostatic Journal Bearing
Journal of the Japan Society for Precision Engineering, Contributed Papers, 2005 主軸径60mmのエアースピンドルユニットを製作し, ハウジング, ブッシュ, ブッシュ・空気膜界面, 流入・流出空気などの温度を, 20000回転までの範囲で測定した. 測定結果をもとに, 有限要素法解析によって熱配分割合を求めるための熱モデルを構築した. 解析から得られた温度は実測値とよく一致し, 供試ユニットにおいては, 主軸, ブッシュ, 排気への熱配分割合はおよそ1/3ずつであった. また, 軸受すきまの増加が空気膜温度の低減に最も効果的であること, ハウジング外径が空気膜温度に及ぼす影響などを明らかにしている.
OHISHI, Susumu, MATSUZAKI, Yasushi
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Measurement and Characterization of Rotational Errors of Aerostatic Bearings in Subnanometer Accuracy. [PDF]
Micromachines (Basel), 2023 Wang P +5 more
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Study on Static Characteristics of Aerostatic Bearing Based on Porous SiC Ceramic Membranes. [PDF]
Membranes (Basel), 2022 Xiao X +6 more
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Research on Vibration Amplitude of Ultra-Precision Aerostatic Motorized Spindle under the Combined Action of Rotor Unbalance and Hydrodynamic Effect. [PDF]
Sensors (Basel), 2023 Wang W, Song P, Yu H, Zhang G.
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Neutron reflectometry under high shear in narrow gap for tribology study. [PDF]
Sci Rep, 2023 Yamashita N +3 more
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Identification of Stiffness and Damping Coefficients of Aerostatic Journal Bearing
, 2009 Paper deals with subject of identification of aerostatic journal bearings dynamic properties with use of Rotor Kit Bently Nevada superstructure. Different bearing types were experimentally investigated and their static and dynamic characteristics were identified.
Kozánek, Jan +3 more
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Dynamic Performance of Partially Orifice Porous Aerostatic Thrust Bearing. [PDF]
Micromachines (Basel), 2021 Sahto MP +4 more
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Design and Dynamic Control: A Free-Flying Space Robot Inspired by Water Striders. [PDF]
Biomimetics (Basel), 2023 Sai H, Xia C, Xu Z, Li H.
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The Stability of Spiral-Grooved Air Journal Bearings in Ultrahigh Speeds. [PDF]
Materials (Basel), 2022 Song L +4 more
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