Results 11 to 20 of about 138 (128)
Lubricants, 2023 In the interest of analyzing the effect of the structural deformation root caused by gas pressure on the static features of aerostatic bearings, a fluid–structure interaction (FSI) model based on orifice-type aerostatic bearings is proposed that can ...
Yangong Wu +4 more
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Study on Static Characteristics of Annular Array Microporous Aerostatic Bearing
Shock and Vibration, Volume 2022, Issue 1, 2022., 2022 In this paper, an aerostatic bearing model in the form of microorifice annular array is designed to explore the static performance of aerostatic bearing when the orifice diameter and working air film thickness are of the same order of magnitude. Firstly, the simulation model of the new bearing is established, the pressure distribution of the bearing ...
Xiao-Long Zhao +4 more
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Advances in Mechanical Engineering, 2021 This study adopts the DMT(dynamic mesh technology) and UDF(user defined functions) co-simulation method to study the dynamic characteristics of aerostatic thrust bearings with equalizing grooves and compare with the bearing without equalizing groove ...
Ruzhong Yan, Haojie Zhang
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International Journal of Mechanical System Dynamics, Volume 1, Issue 1, Page 35-51, September 2021., 2021 Abstract As one of the most advanced and precise equipment in the world, a photolithography scanner is able to fabricate nanometer‐scale devices on a chip. To realize such a small dimension, the optical system is the fundamental, but the mechanical system often becomes the bottleneck. In the photolithography, the exposure is a dynamic process.
Yi Song +4 more
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International Journal of Rotating Machinery, Volume 2021, Issue 1, 2021., 2021 The gas‐lubricated thrust bearing is widely used in agriculture mechanical systems, and the groove shape plays an important role on the hydrodynamic behavior of spiral‐grooved thrust bearing (SGTB). Although the groove shape may change smaller, it is clear that the hydrodynamic response is very sensitive to the groove parameters.
Xianfei Xia +4 more
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Experimental Identification of an Aerostatic Thrust Bearing [PDF]
, 2016 Conventional approaches to design aerostatic bearings are based on their static characteristics. However, dynamic predictions are fundamental in order to obtain very precise positioning since air bearings are frequently subjected to dynamic load variations.
COLOMBO, FEDERICO +3 more
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Engineering Applications of Computational Fluid Mechanics, 2022 Under support forces from static pressure bearings, the solid deformations of static pressure spindle or slide systems will affect their performance, especially for those with high load-carrying capacity and stiffness.
Liang Liu +5 more
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Lubricants, 2022 All the static performance, dynamic characteristics, and stability are strongly associated with the flow field inside the aerostatic bearings. Therefore, a high-precision numerical method is beneficial for the detailed description of the bearing flow ...
Weijie Hou +6 more
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Applied Sciences, 2021 Aerostatic bearings are widely used in high-precision devices. Partial arc annular-thrust aerostatic porous journal bearings are a prominent type of aerostatic bearings, which carry both radial and axial loads and provide high load-carrying capacity, low
Pyung Hwang, Polina Khan, Seok-Won Kang
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Introduction—Up, down, round and round: Verticalities in the history of science
Centaurus, Volume 62, Issue 4, Page 595-611, November 2020., 2020 Abstract History of science's spatial turn has focused on the horizontal dimension, leaving the role of the vertical mostly unexplored as both a condition and object of scientific knowledge production. This special issue seeks to contribute to a burgeoning discussion on the role of verticality in modern sciences, building upon a wider interdisciplinary
Wilko Graf von Hardenberg, Martin Mahony
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