Results 61 to 70 of about 215 (174)
LubricantsGas bearings have the advantages of small friction loss, wide applicable speed range, no pollution, etc., and have important application prospects in micro and small high-speed rotating machinery.
Zhimin Su +3 more
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New Start-up Method for a Closed-Cycle Compression System with Gas Bearings and Its Characteristics
Chinese Journal of Mechanical Engineering, 2020 Gas bearings, which have the advantages of low frictional resistance and power loss, high rotational speed and high temperature operation, and long life, are more suitable than are traditional liquid lubricated bearings because of their high precision ...
Huaqi Lian +3 more
doaj +1 more source
Modelling of Aerostatic Bearings with Micro-Hole Restriction
MachinesAerostatic bearings incorporating micro-hole restrictors with diameters on the order of tens of microns demonstrate superior static and dynamic stiffness characteristics, while significantly reducing air consumption, and are increasingly adopted in ...
Dehong Huo +4 more
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Kashf Journal of Multidisciplinary ResearchThis research presents a comprehensive numerical simulation study comparing the performance of porous-type and orifice-type aerostatic thrust bearings using ANSYS Fluent. Detailed 3D CAD models were developed to reflect realistic geometries, followed by high-quality meshing and parameterized simulations under varying air film thicknesses, restrictor ...
null Muhammad Punhal Sahto +7 more
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Spectral properties and identification of aerostatic bearings
Acta Mechanica Sinica, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kozánek, Jan, Půst, Ladislav
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MachinesAdvancements in manufacturing technology have facilitated the use of micro-orifice restrictors (MORs) in aerostatic bearings. However, the understanding of their effectiveness in journal bearings remains limited.
Siyu Gao +9 more
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Influence of T-shaped Pressure-equalization Grooves on Static Characteristics of Aerostatic Bearings under Offset Loads [PDF]
Journal of Applied Fluid MechanicsAerostatic thrust bearings are highly susceptible to tilting under offset loads, which can cause bearing failure. To enhance the load-carrying capacity and tilting moment resistance of bearings under tilted operating conditions, this study proposes a ...
X. Shan +11 more
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An infinite-stiffness aerostatic thrust bearing.
Journal of the Japan Society for Precision Engineering, 1990 筆者らが考案した静圧式自動調整絞りを組み込んだ空気静圧スラスト軸受を製作してその特性を解析した結果, 次の結論を得た。(1) 400Nの荷重範囲において軸受の静剛性を無限大とすることができた.(2) 主軸受との調整軸受への空気供給圧比を調節することで軸受剛性を正, 無限大, 負と広い範囲で変更できた.(3) ステップ応答における整定時間は5msであり, 圧電素子を用いた自動調整絞りと同程度である.(4) 周波数応答より, 動的コンプライアンスは2Hz以下で1nm/N以下, 10Hzでも3nm/N程度であることが確認された.(5) 供給圧の変動に注意すれぽ10nm程度の軸位置安定性を得ることができる.以上により, 改良された静圧式自動調整絞り付空気静圧軸受は広い荷重範囲において無限大の静剛性を示し ...
MIZUMOTO, Hiroshi +4 more
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Nonlinear vibrations and stability of aerostatic bearing [PDF]
Applied and Computational Mechanics, 2008 Bearings based on aerostatic principle belong to the new machine elements advantageous for low- and high-speed applications, but their dynamic and stability properties are not yet sufficiently known. This paper presents a new elaborated method and gained
Kozánek J., Půst L.
doaj
Aerostatic Porous Annular Thrust Bearings as Seals
Tribology InternationalPeer ...
Miettinen Mikael +2 more
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