Results 41 to 50 of about 130 (116)
International Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.The finite element method was used in this study to explore the impact of surface roughness and thermal characteristics on slider bearings with non‐Newtonian power‐law fluid flow lubricant. One‐dimensional transverse and longitudinal surface roughness models were considered under the stochastic assumption that roughness has a Gaussian random ...
Girma Desu Tessema +3 more
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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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LubricantsTo investigate the effect of recess structures on the static and dynamic performance of aerostatic thrust bearings and to explore superior designs, this study analyzes the load-capacity theoretical model, identifying that the throttling effect and ...
Fangjian Yuan +6 more
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Journal of the Japan Society for Precision Engineering, 1992 This paper proposes a new type of aerostatic thrust bearing in order to achieve the maximum stiffness, about ten times as large as that of a conventional bearing. The proposed aerostatic bearing can operate in a bearing clearance of less than 1μm. In this bearing, the porous restrictor with 1-3 mm diameter is employed instead of a conventional feeding ...
Shigeka YOSHIMOTO +2 more
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Study on the Influence of Inertial Force on the Performance of Aerostatic Thrust Bearings
LubricantsFirstly, the Reynolds equation considering gas inertia force is theoretically deduced in the cylindrical coordinate system, and then a mathematical model of aerostatic thrust bearing with three degrees of freedom (3-DOF) is constructed.
Shuo Jia, Chenhui Jia, Yanhui Lu
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Applied SciencesA study was conducted to develop a porous aerostatic rectangular thrust bearing model, with the aim of assessing how different operational conditions and geometric factors influence its static capabilities.
Ke Zhang, Xiaojiao Zhang, Ruiyu Zhang
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Analysis of Flow Models for Aerostatic Thrust Bearings with Porous Material
Journal of Mechanics Engineering and Automation, 2020 Abstract The numerical determination of static characteristics of bearings allows a cost-efficient and fast pre-design. In this study, two flow models for aerostatic thrust bearings with pressurized porous material are presented and analyzed.
A. Schimpf, Y. Gu, M. Böhle
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The steady performance of a porous and compliant aerostatic thrust bearing [PDF]
, 1987 Recent developments in aerostatic thrust bearings have included: (a) the porous aerostatic thrust bearing containing a porous pad and (b) the inherently compensated compliant surface aerostatic thrust bearing containing a thin elastomer layer. Both these developments have been reported to improve the bearing load capacity compared to conventional ...
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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.
europepmc +1 more source
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.
europepmc +1 more source