Results 1 to 10 of about 137 (128)
Multi-Field Coupling Dynamics Modeling of Aerostatic Spindle [PDF]
Micromachines, 2021 The aerostatic spindle in the ultra-precision machine tool shows the complex multi-field coupling dynamics behavior under working condition. The numerical investigation helps to better understand the dynamic characteristics of the aerostatic spindle and ...
Guoda Chen, Yijie Chen
doaj +2 more sources
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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Theoretical and Numerical Investigations on Static Characteristics of Aerostatic Porous Journal Bearings [PDF]
Machines, 2022 To investigate the static characteristics of aerostatic journal bearings with porous bushing, the flow model—in which the compressibility of lubricating gas is considered—is established based on the Reynolds lubrication equation, Darcy equation for ...
Yandong Gu +4 more
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Ceramic matrices applied to aerostatic porous journal bearings: material characterization and bearing modeling Matrizes cerâmicas com aplicação em mancais aerostáticos cerâmicos porosos: caracterização do material e modelagem do mancal [PDF]
Cerâmica, 2010 This paper presents the development of an advanced ceramic material for manufacturing aerostatic porous bearing. The results show that there is homogeneous distribution of the pores in the alumina matrix by using different concentrations of the added ...
Z. C Silveira +3 more
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Lubricants, 2022 A simplified calculation method is evaluated to calculate the static performance of an aerostatic journal bearing with multiple orifice-type restrictors.
Yangong Wu +4 more
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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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Performance characteristics of an aerostatic journal bearing with partially blocked orifices
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2021 Aerostatic journal bearing applications mainly focus on high-speed precision machining, so predictable and smooth functioning of the system is crucial. Air is supplied to the bearing through a number of orifices and any unevenness in the size of these orifices will affect the performance of the system.
Abdurrahim Dal, Tuncay Karaçay
openaire +3 more sources
Advances in Mechanical Engineering, 2023 To solve the problems of a low gas supply pressure and low load capacity of traditional orifice-compensated aerostatic journal bearings (OCAJBs), this paper presents the design of a double-row gas supply micro-groove-orifice aerostatic journal bearing ...
Wei Cui +4 more
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Applied Sciences, 2021 Aerostatic bearings are attractive, with minimal friction losses, high durability, and environmental friendliness. However, such designs have a number of disadvantages, including low load-bearing capacity and high compliance due to high air ...
Vladimir Kodnyanko +7 more
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Air and atmosphere studies: Enlightenment, phenomenology and ecocriticism
Literature Compass, Volume 19, Issue 1-2, February 2022., 2022 Abstract This essay examines the treatment of air and atmosphere in literary scholarship of the late 17th‐ to mid‐19th‐century periods, from the first, early Enlightenment discovery of the air's chemical structure and the coining of the word ‘atmosphere’, to the dawning of Victorian industrial pollution.
Rowan Rose Boyson
wiley +1 more source