Results 11 to 20 of about 130 (116)
Modelling and Simulation of Aerostatic Thrust Bearings [PDF]
IEEE Access, 2020 This paper demonstrates the modelling and simulation comparison of the static characteristics of a porous, orifice, and multiple type aerostatic thrust bearings on the basis of load-carrying capacity(LCC) and stiffness.
Muhammad Punhal Sahto +5 more
doaj +3 more sources
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
wiley +1 more source
Fluid Film Bearings and CFD Modeling: A Review
Machines, 2023 This paper is a review of the literature about CFD modeling and analysis of journal, thrust, and aerostatic bearings; the advantages and disadvantages of each are specified, and the bearing problems that have been analyzed are discussed to improve their ...
Demetrio Pérez-Vigueras +6 more
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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
wiley +1 more source
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
wiley +1 more source
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
doaj +1 more source
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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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
openaire +1 more source
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
doaj +1 more source
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
wiley +1 more source