Results 11 to 20 of about 137 (128)
IEEE Access, 2021 This paper presents the nonlinear analysis of stability and dynamic rotational accuracy of an unbalanced rotor supported by aerostatic journal bearings.
Tengfei Yin +3 more
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Advances in Mechanical Engineering, 2022 To improve the static characteristics of orifice-compensated aerostatic journal bearings (OCAJBs) under high gas supply pressures, governing equations considering inertial forces are established based on the shear stress transport (SST) k - ω turbulence ...
Li Shusen, Cui Wei
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Applied Sciences, 2021 Active aerostatic bearings are capable of providing negative compliance, which can be successfully used to automatically compensate for deformation of the machine tool system in order to reduce the time and improve the quality of metalworking.
Vladimir Kodnyanko +6 more
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Advances in Mechanical Engineering, 2022 To solve the problem of performance degradation caused by supersonic phenomena under high gas supply pressures in orifice-compensated aerostatic journal bearings (OCAJBs), a double-row gas supply micron-groove-orifice aerostatic journal bearing (MGOAJB ...
Shusen Li, Wei Cui
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Experimental and Numerical Dynamic Identification of an Aerostatic Electro-Spindle
Applied Sciences, 2021 This paper proposes a method to experimentally identify the main modal parameters, i.e., natural frequencies and damping ratios, of an aerostatic spindle for printed board circuit drilling. A variety of methods is applied to the impulse-response function
Federico Colombo +4 more
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Application of multi-leaf foil bearings in high-speed turbo-machinery
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2020 Foil bearings, featuring various advantages (such as high-speed, good operation stability, low friction, long life, strong adaptability, wide temperature range, and oil-free), are promised to have good development prospects and application in high-speed ...
Yu GUO +4 more
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Dynamic Characteristics of Air Cycle Machine Rotor System
Shock and Vibration, Volume 2018, Issue 1, 2018., 2018 Parameters optimization in the critical speed region has the important influence on operational stability of an air cycle machine. Effects of bearing stiffness and unbalanced exciting force on critical speed and response characteristics are investigated by the modal method and harmonic response analysis.
Dongjiang Han +3 more
wiley +1 more source
Effects of Surface Waviness on the Nonlinear Vibration of Gas Lubricated Bearing‐Rotor System
Shock and Vibration, Volume 2018, Issue 1, 2018., 2018 This paper presents the effects of the surface waviness on the nonlinear dynamic performance of a gas bearing‐rotor system. The coupled vibration with the elastomer is taken into consideration to fit the actual engineering application. The effects of the directions, the amplitudes, and the numbers of waves to the nonlinear dynamic performance are ...
Jian Li +4 more
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International Journal of Rotating Machinery, Volume 2017, Issue 1, 2017., 2017 Foil bearing provides compliant support and moderate Coulomb friction for rotor‐bearing system, which is conducive to stability and reliability of high speed rotating machinery. In this paper, both hydrodynamic lubricated foil journal and foil thrust bearings are applied in a 150 m3·h−1 turboexpander for air separation.
Tianwei Lai +5 more
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Ultrahigh-Speed Micro-Milling End Mill with Shank Directly Supported by Aerostatic Bearings
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012 Recently, high-speed micro-milling has attracted considerable attention for effectively manufacturing fine and precise machine components with lower cutting resistance.
Fumitaka NISHIKAWA +2 more
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