Results 31 to 40 of about 343 (195)
Optimization of Hydrostatic Thrust Bearings
Journal of the Japan Society of Precision Engineering, 1978 In this paper, the theoretical studies on the optimization of the operating condition of the hydrostatic thrust bearings are presented. Total amount of power consumption is treated as an objective function, while the bearing clearance, static stiffness, damping ratio of the bearing, lubricant viscosity and the initial lift up pressure are considered as
Tojiro AOYAMA +2 more
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Machines, 2022 Hydrostatic bearing spindles are widely applied in high precision grinding and turning machines due to their good dynamic stability and rotational accuracy.
Youyun Shang +3 more
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Theoretical Study of Hydrostatic Thrust Bearings
Bulletin of JSME, 1958 The load capacity of hydrostatic bearings can be increased by making a pocket which keeps effective fluid pressure on the bearing surface, and their dynamic stability can be improved by arranging a suitable restrictor like a capillary or an orifice which corresponds to the bearing dimensions and the optimum clearance in the fluid supply-line.
SASAKI, Tokio +2 more
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Energetics of the Citric Acid Cycle in the Deep Biosphere
Geophysical Monograph Series, Page 303-327., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Peter A. Canovas III, Everett L. Shock
wiley +1 more source
Thermoelastohydrodynamic Behavior of Hydrostatic Thrust Bearings
Hydraulics & Pneumatics, 1990 The thermoelastic behavior of hydrostatic thrust bearings is analyzed numerically. Mineral oils, HWCF, seawater, and tap water are studied as working fluids. The physical properties of these fluids are expressed as a function of temperature and pressure. The heat transfer and thermoelastic distortion of the bearings are considered.
KAZAMA, Toshiharu +2 more
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UNIVERSAL STAND FOR STUDYING SEALING AND BEARING UNITS OF COMPRESSOR MACHINES [PDF]
Avtomobilʹnyj Transport (Harʹkov), 2018 The proposed stand is designed to test sealing and bearing units of various types, because these units, regardless of their type, require almost the same auxiliary stand systems, as well as practically the same measurement system.
Pogrebnyak A. +2 more
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The Structural Optimum of Hydrostatic Thrust Bearings to Avoid Cavitation
LubricantsCavitation of oil film is harmful for all kinds of hydrostatic bearings, so the method to avoid cavitation in hydrostatic thrust bearings by optimizing the structure of bearings is proposed in this study. Based on the pressure distribution expressions of
Huaiqing Lu +3 more
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Thrust bearing with a hydrostatic floating disk.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1989 This paper is concerned with the reduction of the power loss of the thrust bearing. A thrust bearing with a disk floated by externally pressurized oil is proposed, and the static characteristics of the thrust bearing are investigated by experiments and simplified analysis in the laminar regime.
HARADA, Masami +3 more
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Nihon Kikai Gakkai ronbunshu, 2017 Si wafer diameter tends to be increased from 300 mm to 450 mm in order to increase semiconductor device productivity. To this end, the authors developed a rotary grinding machine with high stiffness, equipped with water hydrostatic bearings.
Jumpei KUSUYAMA +7 more
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Journal of Harbin University of Science and TechnologyIn order to solve the problem of insufficient bearing capacity of hydrostatic thrust bearings at high speed, a pendulum shaped oil lifting structure is added in the double rectangular oil cavity and this paper takes the slope-shaped and the ordinary ...
YANG Xiaodong +3 more
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