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Journal articles on the topic 'Calculation of hydrostatic bearing'

Author: Grafiati

Published: 28 June 2021

Last updated: 29 July 2025

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1

Nazin, Vladimir. "Revealing the effect of changing the operating parameters of a double hydrostatic bearing on its characteristics." Eastern-European Journal of Enterprise Technologies 3, no. 7 (123) (2023): 45–52. http://dx.doi.org/10.15587/1729-4061.2023.281936.

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The object of research is hydrostatic processes in sliding bearings with several layers of lubricant. The task addressed was the influence of the structural and operational parameters of dual hydrostatic plain bearings on their static and dynamic characteristics. As a static characteristic, the bearing capacities of dual and conventional sleeve hydrostatic bearings were considered. When analyzing the dynamic characteristics, the amplitude-frequency characteristics were determined. They were obtained by calculation and as a result of experimental studies. When calculating the amplitude-frequenc

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2

Wang, Shaoli, Jie Lu, Yilin Zhang, Kehan Ge, and Chao Zhong. "Analytical Research on the Bearing Characteristics of Oil Film Supplied with Constant Oil Flow Hydrostatic Turntables under Fixed Eccentric Load Condition." Processes 10, no. 10 (2022): 2017. http://dx.doi.org/10.3390/pr10102017.

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This study was initiated in view of the phenomenon that hydrostatic turntable rails are prone to scrape damage when the liquid hydrostatic turntable is running under fixed partial load. The existing bias-load hydrostatic turntable oil film bearing characteristics are mainly calculated by using the calculus integration method and CFD fluid simulation method. The calculating formula obtained by the calculus integration method is complex and inefficient. The CFD fluid simulation calculation method requires 3D modeling and meshing of the oil film, which is a tedious and time-consuming process and

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3

Zhang, Shengdong, Dongjiang Yang, Guangming Li, et al. "Carrying Capacity of Spherical Hydrostatic Bearings Including Dynamic Pressure." Lubricants 12, no. 10 (2024): 346. http://dx.doi.org/10.3390/lubricants12100346.

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To calculate the carrying capacity of spherical hydrostatic bearings, a numerical calculation model was presented. The influence law of dynamic pressure effect on the carrying characteristics of liquid hydrostatic spherical bearings is revealed. Under general working conditions, the dynamic pressure effect caused by the radial eccentricity of the bearing has little influence on the bearing load characteristics parameters; when the minimum width of the gap between the sealing edge is very small and the bearing rotational speed is high, the dynamic pressure effect is more obvious.

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4

Zhang, Shengdong, Dongjiang Yang, Guangming Li, et al. "Carrying Capacity of Spherical Hydrostatic Bearings including Elastic Deformation." Lubricants 12, no. 3 (2024): 97. http://dx.doi.org/10.3390/lubricants12030097.

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This paper presents a theoretical model for calculating the carrying capacity of spherical hydrostatic bearings, including the deduction and solution of differential equations for fluid flow in the oil seal and the generation of bearing characteristic parameters. An example is used to verify the accuracy of the proposed calculation model. Additionally, the influence of dynamic pressure on the bearing capacity is investigated under various speed conditions. The results demonstrate that as the minimum width of the oil gap decreases, the maximum dynamic pressure increases non-linearly. Furthermor

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5

Назин, Владимир Иосифович. "РОЗРАХУНОК КОМБІНОВАНИХ ГІДРОСТАТИЧНИХ ПІДШИПНИКІВ ЗДВОЄНОГО ТИПУ ПРИ СТАЦІОНАРНОМУ ЗОВНІШНЬОМУ НАВАНТАЖЕННІ". Aerospace Technic and Technology, № 6 (12 серпня 2017): 40–44. http://dx.doi.org/10.32620/aktt.2017.6.05.

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The relevance of the application of combined hydrostatic bearings of the twin type in various units and power plants is shown, the loads in which reach ten tons. The most complicated modes of operation of rotor supports associated with starting and stopping are described. The current method for improving the liquid friction regime at nuclear power plants, associated with the use of auxiliary containers with a working fluid, which are set at a certain height, provides the working fluid to the bearings by gravity and thus improves the friction regime. The design of a combined bearing is proposed

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6

Liang, Peng, Changhou Lu, and Fazhan Yang. "A fast computing approach concerning recess pressure." Industrial Lubrication and Tribology 70, no. 1 (2018): 1–7. http://dx.doi.org/10.1108/ilt-12-2015-0196.

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Purpose This paper aims to provide a new method for fast calculation of the recess pressure for hydrostatic bearing compensated by orifice restrictor. Design/methodology/approach Three methods (new method, old method and finite difference method) are used to calculate recess pressure for hydrostatic bearing at different eccentricity ratios and radial clearances, and the results with the three methods are compared. Findings From the results, the conclusion is that the new method has a simple calculation process and a quick calculation speed. Originality/value The new method can be used to calcu

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7

Huang, Long, Wen Li Ma, and Jin Long Huang. "Calculation and Simulation Azimuth Hydrostatic Thrust Bearing of a Large Alt-Azimuth Telescope." Applied Mechanics and Materials 364 (August 2013): 28–32. http://dx.doi.org/10.4028/www.scientific.net/amm.364.28.

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The use of hydrostatic bearing for support of telescope offers a number of potential performance advantages, but the structure parameter of bearing is the main factor which influence the bearing. The temperature rise of bearing is also important for the stiffnees of the telescope mount.In addition to the known benefit of mount stiffness and tracking accuracy from exceedingly low friction, the hydrostatic bearing provides a wide range of geometric possibilities for large telescopes [1].This paper analyzes various familiar hydrostatic bearing for the azimuth and elevation axes of telescope.Theor

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8

Zhang, Yan Qin, Xiao Dong Yu, Xiao Dong Yang, Gui Tao Sun, Xiao Yang Yu, and Zhi Min Shi. "Viscosity Influence Research on Load Capacity of Heavy Hydrostatic Bearing." Key Engineering Materials 450 (November 2010): 63–66. http://dx.doi.org/10.4028/www.scientific.net/kem.450.63.

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Lubricant viscosity is one of the key parameters in hydrostatic bearing research. In order to solve the load capacity of hydrostatic bearing in the heavy equipment, viscosity-temperature equation of lubricant film is established, and the viscosity-temperature curve is fitted by B-Spline curve. Finite volume method is used on numerical simulation of pressure field of heavy hydrostatic bearing in constant and variable viscosity respectively and in different rotational velocity, whereafter, viscosity influence on load capacity of heavy hydrostatic bearing is discussed. The results show that, visc

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9

Nazin, Vladimir. "Identifying the influence of design parameters of single-chamber hydrostatic bearing of fuel pump on its main characteristics." Eastern-European Journal of Enterprise Technologies 1, no. 7 (127) (2024): 30–36. http://dx.doi.org/10.15587/1729-4061.2024.298646.

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The object of this study is hydrostatic processes in the fluid friction bearings of gear-type aviation fuel pumps. The problem of the influence of the design parameters of a single-chamber hydrostatic bearing on its main characteristics was solved. The main characteristics were considered to be the load-bearing capacity and the flow rate of the working fluid. When determining the main characteristics of a single-chamber hydrostatic bearing, the Reynolds and flow balance equations were solved jointly. The resulting diagram of pressure distribution over the working surface of the bearing was use

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10

Zhang, Yan Qin, Rui Li, Chun Xi Dai, Jun Peng Shao, Xiao Dong Yang, and Gui Tao Sun. "Temperature Field of Hydrostatic Supporting Disk in Different Viscosity and Rotational Speed." Applied Mechanics and Materials 274 (January 2013): 124–27. http://dx.doi.org/10.4028/www.scientific.net/amm.274.124.

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With heavy hydrostatic bearing as the research object, establish oil film viscosity-temperature equation. Adopt finite volume method, respectively calculates the oil film temperature field under different rotate velocity in Invariant viscosity and variable viscosity, revealing the oil film temperature arise influence rule of hydrostatic bearing on the viscosity and rotate velocity. The results show that the viscosity and rotate velocity have a great influence on the hydrostatic bearing oil film temperature rise, but the effect regularity varied. The calculated results that provide a theoretica

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11

Nazin, Vladimir. "Revealing the influence of structural and operational parameters of a wooden hydrostatic bearing on its performance." Eastern-European Journal of Enterprise Technologies 6, no. 1 (120) (2022): 25–32. http://dx.doi.org/10.15587/1729-4061.2022.269703.

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Wooden bearings, lubricated with water and other low-viscosity lubricants, have been used for centuries. In steamship engines, turbines of hydroelectric power plants and propellers of submarines, it is proposed to use wooden hydrostatic bearings, which are guaranteed to provide liquid friction and have high reliability. The object of this study is hydrostatic and thermal processes in sliding supports with wooden hydrostatic bearings. The influence of the design and operational parameters of a wooden hydrostatic bearing on its performance was tackled. Theoretical dependences are given, making i

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12

Vladimir, Nazin. "Revealing the influence of structural and operational parameters of a wooden hydrostatic bearing on its performance." Eastern-European Journal of Enterprise Technologies 6, no. 1 (120) (2022): 25–32. https://doi.org/10.15587/1729-4061.2022.269703.

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Wooden bearings, lubricated with water and other low-viscosity lubricants, have been used for centuries. In steamship engines, turbines of hydroelectric power plants and propellers of submarines, it is proposed to use wooden hydrostatic bearings, which are guaranteed to provide liquid friction and have high reliability. The object of this study is hydrostatic and thermal processes in sliding supports with wooden hydrostatic bearings. The influence of the design and operational parameters of a wooden hydrostatic bearing on its performance was tackled. Theoretical dependences are given, making i

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13

Zhang, Yan Qin, Xiao Dong Yang, Hong Mei Li, Hui Jiang, Xiao Yang Yu, and Zhi Min Shi. "Research on Influence of Cavity Depth on Load Capacity of Heavy Hydrostatic Bearing in Variable Viscosity Condition." Advanced Materials Research 129-131 (August 2010): 1181–85. http://dx.doi.org/10.4028/www.scientific.net/amr.129-131.1181.

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Owing to setting viscosity of lubrication oil as a constant value will lead errors in hydrostatic bearing calculation, the influence of cavity depth on load capacity of heavy static bearing is analyzed in variable viscosity condition. Firstly, viscosity-temperature equations of oil film are established; secondly, viscosity-temperature curve is fitted by B-Spline; finally, using finite volume method, hydrostatic pressure field and dynamic pressure field of heavy hydrostatic bearing is calculated with different cavity depth at the same velocity, and influence of cavity depth on load capacity is

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14

Yang, Xiao Dong, Jun Peng Shao, Xiao Qiu Xu, Yun Fei Wang, Chao Yin, and Hui Jiang. "Research on Velocity Influence on Thermal Deformation Field of Heavy Hydrostatic Thrust Bearing." Advanced Materials Research 129-131 (August 2010): 968–72. http://dx.doi.org/10.4028/www.scientific.net/amr.129-131.968.

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According to the structure of workbench and base of heavy hydrostatic bearing which is applied in heavy equipment, thermal deformation equations of the structure are deduced and boundary conditions for numerical simulation are established based on thermal elasticity theory. Then thermal deformation of hydrostatic bearing without load is calculated at different velocity. The results indicate that: temperature and velocity impacts a significant influence on thermal deformation of hydrostatic bearing. Thermal deformation increases as the velocity increases; workbench up-warps severely, oil-pad in

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15

Wang, Shi Gang, Zi Jian Qiu, and Dong Sheng Li. "Study on Capacity of Vertical Lathe for Heavy Hydrostatic Bearing." Materials Science Forum 800-801 (July 2014): 559–63. http://dx.doi.org/10.4028/www.scientific.net/msf.800-801.559.

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For DVT500 vertical lathe of the carrying capacity of heavy hydrostatic bearing problem, Through the simplification of the geometric model of a single oil pad to derive the effective bearing area of a single oil pad, then establish its mathematical model, for the following to prepare for the simulation of heavy hydrostatic bearing, and through the simulation of heavy hydrostatic bearing, get the input under the condition of unchanged, with the constant improvement of the speed, the change of heavy hydrostatic bearing pressure field. Results show that the feed quantity under the condition of un

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16

Kodnyanko, Vladimir, and Andrey Kurzakov. "Static characteristics of a hydrostatic thrust bearing with a membrane displacement compensator." FME Transactions 49, no. 3 (2021): 764–68. http://dx.doi.org/10.5937/fme2103764k.

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The article discusses the design and also presents a mathematical model and method for calculation of static characteristics of a hydrostatic thrust bearing with a membrane-type displacement compensator. Formulae for calculation of compliance and load characteristics of the bearing are also presented, as well as deformation and compliance of the membrane at which zero compliance of the bearing is guaranteed.

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17

Vladimir, Nazin. "Revealing deformation of segments and their supports in a hydrostatic segmental bearing." Eastern-European Journal of Enterprise Technologies 4, no. 7 (112) (2021): 33–40. https://doi.org/10.15587/1729-4061.2021.239066.

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At present, there are theoretical and experimental studies of such bearings without taking into account the elastic deformation of the bearing segments. The rotor bearings of powerful turbines at nuclear power plants are subjected to loads as high as tens of tons. One of the important issues in designing segmental bearings operating under these conditions consists in taking into account elastic deformations of the segments. A schematic diagram of a segmental hydrostatic bearing was presented and the principle of its operation was described. When determining the deformation of spherical support

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18

San Andres, Luis. "The Effect of Journal Misalignment on the Operation of a Turbulent Flow Hydrostatic Bearing." Journal of Tribology 115, no. 3 (1993): 355–63. http://dx.doi.org/10.1115/1.2921643.

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An analysis for calculation of the dynamic force and moment response in turbulent flow, orifice compensated hydrostatic journal bearings is presented. The fully developed flow of a barotropic liquid is described by variable properties, bulk-flow equations and local turbulent friction factors based on bearing surface condition. Bearing load and moments and, dynamic force and moment coefficients are calculated for perturbations in journal center displacements and misaligned journal axis rotations. Numerical results for the effect of static misalignment angles in the plane of the eccentricity vec

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19

Liu, Yongmeng, Zifei Cao, Yuan Zhang, Dawei Wang, Xiaoming Wang, and Chuanzhi Sun. "Design and Research of Symmetrical Multi-Throttle Thrust Hydrostatic Bearing Based on Comparative Analysis of Various Meshes." Symmetry 14, no. 2 (2022): 351. http://dx.doi.org/10.3390/sym14020351.

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Due to the advantages of high rotation accuracy and long life, hydrostatic air bearings are widely used in precision rotation equipment, such as machine tools and turntables. It is imperative to reasonably design the structural size of the bearing, especially as the size of the bearing in the precision turntable determines the bearing capacity of the turntable. At present, commercial CFD software is used chiefly for simulation verification for the design of air bearings. The mesh divided in the simulation calculation has a significant impact on the efficiency of the calculation and determines

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20

Liebmann, Dennis, Volker Lagemann, and Michael Bargende. "Öltransport und Reibungsbewertung innerhalb der Kolbenbolzenlagerung." Tribologie und Schmierungstechnik 68, no. 6 (2021): 36–44. http://dx.doi.org/10.24053/tus-2021-0036.

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Increased loads and lower oil supply of today’s low-consumption internal combustion engines lead to higher demands on mechanical and elastohydro-dynamical design methods of the piston pin bearing. The bearing is not lubricated directly but through spray oil or oil mist. A description of the lubrication mechanism within the bearing has mostly been researched theoretically. In order to understand the friction conditions and lubrication mechanisms, the bearing is tested on an external test bench with high loads and a hydrostatic bearing of the piston. An enginelike lubrication can be variably adj

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21

Zhang, Yan Qin, Xiao Qiu Xu, Xiao Dong Yang, et al. "Analysis on Influence of Oil Film Thickness on Temperature Field of Heavy Hydrostatic Bearing in Variable Viscosity Condition." Advanced Materials Research 239-242 (May 2011): 1418–21. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1418.

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According to the problem of the influence of oil film thickness on temperature rise for heavy hydrostatic thrust bearing during operation， build viscosity-temperature equation of lubricating oil film and mathematics model of oil film temperature rise of heavy hydrostatic bearing with multiple oil pads, simulate the temperature field of hydrostatic bearing with sector cavity under various oil film thickness using FVM(finite volume method), and reveal the influence law of oil film thickness of temperature rise for hydrostatic bearing. The results show that temperature distribution of hydrostatic

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22

Nazin, Vladimir. "Revealing the influence of structural and operational parameters of a hydrostatic bearing in a gear-type fuel pump on its main characteristics." Eastern-European Journal of Enterprise Technologies 2, no. 1 (122) (2023): 92–98. http://dx.doi.org/10.15587/1729-4061.2023.277755.

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The object of this study is hydrostatic processes in the sliding supports of gear-type fuel pumps. The problem solved was the influence of the structural and operational parameters of hydrostatic bearings of the fuel pump on their static characteristics. The carrying capacity and consumption of the lubricant were considered as static characteristics. The characterization was based on the function of distributing the pressure in the lubricant layer. It was determined from the joint solution of the Reynolds equations and the balance of costs. The carrying capacity of the bearing was determined b

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23

Vladimir, Nazin. "Revealing the influence of structural and operational parameters of a hydrostatic bearing in a gear-type fuel pump on its main characteristics." Eastern-European Journal of Enterprise Technologies 2, no. 1(122) (2023): 92–98. https://doi.org/10.15587/1729-4061.2023.277755.

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The object of this study is hydrostatic processes in the sliding supports of gear-type fuel pumps. The problem solved was the influence of the structural and operational parameters of hydrostatic bearings of the fuel pump on their static characteristics. The carrying capacity and consumption of the lubricant were considered as static characteristics. The characterization was based on the function of distributing the pressure in the lubricant layer. It was determined from the joint solution of the Reynolds equations and the balance of costs. The carrying capacity of the bearing was determined b

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24

Sun, Ya Zhou, Jiu Da Wu, Jing He Zhang, and Hai Tao Liu. "Structure Scheme Design of a Large Ultra-Precision Hydrostatic Rotary Table with a High Diameter-Length Ratio." Key Engineering Materials 579-580 (September 2013): 353–56. http://dx.doi.org/10.4028/www.scientific.net/kem.579-580.353.

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This essay briefly introduces a structure scheme design of a high diameter-length ratio rotary plate. This structure scheme is unique from any well-known schemes. In this scheme, there is only one flat act as the working flat for both main thrust bearing and aux thrust bearing. It minimizes the faces which need lapping. At the same time, this scheme minimizes the number of assembling parts. So, it will be easier for this scheme to achieve high accuracy. This essay includes the process of design: calculation for bearings and schemes compare.

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25

WASILCZUK, Filip, Michał WASILCZUK, and Michał WODTKE. "PROSPECTS OF DECREASING POWER LOSSES IN A HYDROSTATIC THRUST BEARING." Tribologia, no. 4 (August 31, 2017): 91–96. http://dx.doi.org/10.5604/01.3001.0010.6033.

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In numerous machines, axial load is carried by tilting pad thrust bearings known since the beginning of 20th century. These bearings are commonly bath lubricated, which is simple, does not require any additional pumps, and, due to this, such systems are highly reliable. In a contemporary technology, however, minimization of friction losses became an important goal of machinery improvement. Calculations based on elementary rules of fluid dynamics show that shearing losses in a specially designed hydrostatic bearing can be considerably smaller than the losses in a tilting pad hydrodynamic bearin

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26

Zhang, Yan Qin, Ze Yang Yu, Xiao Dong Yang, Chun Ying Hu, Hua Lin Wang, and Jun Peng Shao. "Thermal Deformation Impact Analysis on the Workbench of Large Size Hydrostatic Bearing Plate Structure." Materials Science Forum 836-837 (January 2016): 369–73. http://dx.doi.org/10.4028/www.scientific.net/msf.836-837.369.

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Thermal deformation of large size hydrostatic bearing rotary workbench is the most direct factor that affects the machining accuracy of work-piece. The thesis puts forward the method of adding reinforcing plate structure to restrain the workbench thermal deformation, establishes three-dimensional supporting workbench model, with finite element method and sequence of fluid-solid coupling technology have carried on the thermal deformation calculation workbench, and reveals the influence law of different installation position of rib plate on the workbench thermal deformation. The results of the s

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27

Zhang, Yan Qin, Rui Li, Chun Xi Dai, Jun Peng Shao, Xiao Dong Yu, and Bai Qin. "Simulation on Supporting Characteristics of Heavy Hydrostatic Thrust Bearing." Applied Mechanics and Materials 157-158 (February 2012): 94–97. http://dx.doi.org/10.4028/www.scientific.net/amm.157-158.94.

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The pressure field of the clearance oil film of the hydrostatic bearing in varies velocities was simulated based on Finite Volume Method (FVM) by the software of Computational Fluid Dynamics. In this article, a conclusion could be drawn that the viscosity has great influences on the pressure in the heavy hydrostatic bearing and it cannot be neglected especially in high rotating speed. The results of numerical calculations provide internal flow status inside the bearing, which would help the design of the oil cavity structure of the bearing in engineering practice.

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28

WASILCZUK, Filip, Michał WASILCZUK, and Michał WODTKE. "HYDROSTATIC THRUST BEARING WITH REDUCED POWER LOSSES." Tribologia 281, no. 5 (2018): 123–31. http://dx.doi.org/10.5604/01.3001.0012.7664.

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In many cases in rotating machinery, axial load is carried by tilting pad thrust bearings which have been developed since the beginning of 20th century. For high reliability and simplicity, most commonly the bearings are bath lubricated. In the times of sustainable development, however, minimization of friction losses becomes an important criterion for machinery assessment, and a strategic goal of their development. Performed calculations, based on elementary rules of fluid dynamics, showed that shearing losses in specially designed hydrostatic bearings can be considerably smaller than the los

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29

Shang, Youyun, Kai Cheng, Qingshun Bai, and Shijin Chen. "Drag Reduction Analysis of the Hydrostatic Bearing with Surface Micro Textures." Applied Sciences 12, no. 21 (2022): 10831. http://dx.doi.org/10.3390/app122110831.

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Surface microtexturing has been widely used due to its good hydrophobic or drag reduction characteristics, and become an effective method to improve product performance and reduce energy consumption. This paper mainly discusses the improvement of microtextures on the dynamic pressure characteristics of hydrostatic bearings, and explores the effects of texture parameters on carrying capacity, macroscopic wall two-plane shear force, cavity area and other factors. In the oil film model calculation of the smooth wall surface of the radial hydrostatic bearing under the action of high speed and larg

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30

Chen, Runlin, Xingzhao Wang, Chen Du, Jun Zha, Kai Liu, and Xiaoyang Yuan. "Stiffness Model and Experimental Study of Hydrostatic Spindle System considering Rotor Swing." Shock and Vibration 2020 (May 15, 2020): 1–8. http://dx.doi.org/10.1155/2020/5901432.

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For high-end CNC machine tools, the stiffness of the spindle system is one of the most important performance indicators. In this paper, the hydrostatic motorized spindle system of a grinding machine is taken as the research object, and a two-degree-of-freedom stiffness model of the spindle system considering rotor swing is proposed. The stiffness of the spindle system under different excitation frequencies is analyzed, and the contributions of the stiffness of two bearings to the stiffness of the spindle system are evaluated. The vibration test on the spindle system is implemented through the

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31

Chen, Liwen, Bingyan Cui, Xiaochen Wu, Chenxu Yin, and Jianhua Zhao. "Study on Load-Bearing Characteristics of Converter Trunnion Bearing." Metals 13, no. 3 (2023): 549. http://dx.doi.org/10.3390/met13030549.

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In order to improve the load-bearing performance of converter trunnion bearing, this paper proposes magnetic-hydraulic bearing which is a new coupled support technology that combines electromagnetic support and hydrostatic support. It can be realized the active control of electromagnetic and hydraulic pressure, and is conducive to extending the bearing replacement period. Based on the magnetic-hydraulic coupling, a mathematical model of the initial state of the radial support system is established, the calculation formula of bearing capacity of radial magnetic fluid bearing is deduced, and Mat

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32

Novikov, E. A., I. A. Shitikov, and V. A. Maksimov. "Calculation of the Characteristics of a Hydrostatic Ring Thrust Bearing for Refrigeration Compressors." Chemical and Petroleum Engineering 40, no. 3/4 (2004): 222–28. http://dx.doi.org/10.1023/b:cape.0000033680.91322.0f.

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Guo, Zenglin, Toshio Hirano, and R. Gordon Kirk. "Application of CFD Analysis for Rotating Machinery—Part I: Hydrodynamic, Hydrostatic Bearings and Squeeze Film Damper." Journal of Engineering for Gas Turbines and Power 127, no. 2 (2005): 445–51. http://dx.doi.org/10.1115/1.1807415.

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The traditional method for bearing and damper analysis usually involves a development of rather complicated numerical calculation programs that may just focus on a simplified and specific physical model. The application of the general CFD codes may make this analysis available and effective where complex flow geometries are involved or when more detailed solutions are needed. In this study, CFX-TASCflow is employed to simulate various fixed geometry fluid-film bearing and damper designs. Some of the capabilities in CFX-TASCflow are applied to simulate the pressure field and calculate the stati

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34

Tyabin, N. V., V. O. Yablonskii, and V. M. Yashchuk. "Calculation of hydrostatic plastic medium-lubricated thrust bearings." Journal of Engineering Physics and Thermophysics 63, no. 3 (1992): 949–52. http://dx.doi.org/10.1007/bf00852786.

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35

Wang, Ya Jun. "Calculation Method of Lubricant Film Pressure Distribution of Axial Piston Pump Slippers." Applied Mechanics and Materials 328 (June 2013): 629–33. http://dx.doi.org/10.4028/www.scientific.net/amm.328.629.

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A method is implemented to get the pressure distribution of the axial piston pump slipper. Slipper was seen as translating thrust bearing, taking slipper tilt and spin in account, based on finite volume method, hydrodynamic and hydrostatic pressure has been calculated by using the mass conservation principle. For a representative element volume, the difference flow was averaged by the difference flow between the tilting planes, and the shearing flow by slipper translating was averaged by the shearing flow between the tilting planes. The numerical calculating result based two liquid resistance

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36

Ma, Yanna, Zhenyu Wang, and Dan Wang. "The Safe Load-Bearing Capacity of Railway Tunnel Linings under High-Pressure and Water-Rich Conditions." Buildings 13, no. 9 (2023): 2154. http://dx.doi.org/10.3390/buildings13092154.

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High water pressure has been identified as the direct cause of water seepage problems in tunnels. Consequently, it is imperative to ascertain the safety load-bearing limits of tunnel linings in high-pressure, water-rich strata. In this study, FLAC3D (V5.0) numerical simulation software was employed to establish seepage models of tunnels under high-pressure, water-rich conditions, taking an actual engineering project as a reference. The hydrostatic pressure on tunnel linings under various conditions, including different permeability coefficients of the surrounding rock, grouting rings, levels o

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Long, Wei, Yan Liu, Zhang Yong Wu, Jing Tao Wei, and Zi Yong Mo. "Fluid-Solid Coupling Heat Analysis of Aerostatic Guide Components." Applied Mechanics and Materials 779 (July 2015): 50–54. http://dx.doi.org/10.4028/www.scientific.net/amm.779.50.

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This paper presents the parameters and assumptions of the hydrostatic guide rail in both ideal and actual working conditions, the simulate calculation of fluid-solid heat coupling field between gas film and the bearing surface is finished by Fluent based on finite volume method. By analyze and compare the results after post-treatment, we gain the effects caused by guide way’s structure and deformation on the formation of film pressure field, temperature field inside gas film, besides this paper also provides relate conclusions.

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Suslov, Nikolay, and Stanislav Chernukhin. "Determination of the working area of a hydraulic excavator." E3S Web of Conferences 177 (2020): 03016. http://dx.doi.org/10.1051/e3sconf/202017703016.

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The article discusses the mechanisms of walking used on dragline excavators. The disadvantages of each mechanism are identified and based on this, the most promising movement mechanism is selected – a three-legged walking mechanism with a hydraulic drive. For this mechanism, the main disadvantages are also identified. The following is a technical solution that allows you to save this mechanism from the main drawback – the need to raise the center of mass of the excavator to a significant height to ensure the maximum step value. The technical solution includes the presence of a flat hydrostatic

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Tatsienko, Victor, Vyacheslav Gogolin, Inna Ermakova, and Alexander Liskovets. "Justification of the Calculation Method for Arch Support with Rock Grouting." E3S Web of Conferences 105 (2019): 01026. http://dx.doi.org/10.1051/e3sconf/201910501026.

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This paper proposes a new method for calculating arch support with grouted space behind the support. The analysis of existing installations and methods for the calculation of frame supports was made. It has been established that the existing methods of frame parts calculation do not take into account the presence of grouted space behind the support. It is proposed to take into account the presence of the grouted layer in the space behind the support when it interacts with the rock mass. The formation of partially disturbed rock adjacent to the grouted layer is taken into account in the behavio

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VASILIEV, A. A. "INFLUENCE OF NUMBER OF THE HYDROSTATIC BEARINGS WITH AN INCOMPLETE RANGE ANGLE POCKETS ON STATIC AND DYNAMIC CHARACTERISTICS." Fundamental and Applied Problems of Engineering and Technology, no. 5 (2021): 52–57. http://dx.doi.org/10.33979/2073-7408-2021-349-5-52-57.

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Comparative analysis of the design of the working surface of the hydrostatic bearings with an incomplete range angle for the static and dynamic characteristics of the bearings. Rectangular pockets with two variants of the number of pockets: two, three and four were considered as constructive designs. The following were considered as static characteristics: load capacity, power losses for pumping and flow rate of the working fluid. As dynamic characteristics were considered: stiffness and damping coefficients. For the models, mathematical calculation models were used based on the joint solution

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Wang, Jianlei, Changhui Ke, Kaiyu Hu, and Jun Zha. "Thermal Error Analysis of Hydrostatic Turntable System." Machines 13, no. 7 (2025): 598. https://doi.org/10.3390/machines13070598.

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The thermal error caused by the temperature rise in the service condition of the hydrostatic turntable system has a significant impact on the accuracy of the machine tool. The temperature rise is mainly caused by the friction heat of the bearing and the heat of the oil pump. The amount of heat mainly depends on the working parameters, such as the oil supply pressure and the oil film gap. The unreasonable parameter setting will cause the reduction in the internal flow of the hydrostatic bearing and the increase in the oil pump power, which makes the heat of the lubricating oil increase and the

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Magomedov, M. A., V. V. Kuznetsov, B. M. Yazyev, and S. V. Litvinov. "Modeling creep for a closed cylindrical shell under hydrostatic pressure." Herald of Dagestan State Technical University. Technical Sciences 51, no. 4 (2025): 191–200. https://doi.org/10.21822/2073-6185-2024-51-4-191-200.

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Objective. The paper presents general equations of the moment theory of a shell of zero Gaussian curvature taking into account creep deformation. The problem of the stress-strain state of a shell is considered, with the boundary conditions: rigidly fixed at the base and free edge at the top. The cylinder is subject to internal hydrostatic pressure. Method. A linear non-homogeneous differential equation of the fourth order with respect to deflection is obtained. The solution is given in the MATLAB software package. The non-linear MaxwellGurevich equation is used as the equation of state between

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Zhang, Yongtao, Shijie Yu, Changhou Lu, Haixia Zhao, and Peng Liang. "An improved lumped parameter method for calculating static characteristics of multi-recess hydrostatic journal bearings." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 234, no. 2 (2019): 301–10. http://dx.doi.org/10.1177/1350650119855242.

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This paper proposes an improved lumped parameter method for calculating the static characteristics of multi-recess hydrostatic journal bearings. The improved lumped parameter method can estimate the total pressure distribution in the circumferential direction by introducing control volume in the middle of each inter-recess land, and utilizing the flow continuity equations for each recess and each control volume with the assumption that the pressure distributions are parabolic on the inter-recess land. Then the recess pressure and the fluid film force can be calculated. The calculation accuracy

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Han, Juan, and Yin Liang. "The Strength Research of Pressure Pipeline Reinforced with CFRP." Applied Mechanics and Materials 446-447 (November 2013): 1405–8. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.1405.

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In order to make the pressure safe, a new method and material for reinforcing pipelines is introduced, that is carbon fiber reinforced polymer sheet. In the experiment, the metal pipelines that wrapped with different layers of CFRP sheets respectively are carried loads by hydrostatic burst test. The results show that this method can be a substantial reinforcement in the bearing capacity of the metal pipelines. According to the test data and the thin wall cylinder stress calculation theory, the design formula of reinforcing layer thickness of CFRP was presented in the elastic and plastic state

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Yu, Xiao Dong, Xiu Li Meng, Hui Jiang, et al. "Numerical Simulation on Oil-Flow-State of Gap Oil Film in Sector Cavity Multi-Pad Hydrostatic Thrust Bearing." Applied Mechanics and Materials 37-38 (November 2010): 743–47. http://dx.doi.org/10.4028/www.scientific.net/amm.37-38.743.

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Hydrostatic thrust bearing lubrication is significantly affected by the oil flow state of gap oil film, but it can not be measured by experiment and analysis. For this problem, the oil flow state of gap oil film in sector cavity multi-pad hydrostatic thrust bearing during rotation was simulated by using computational fluid dynamics, lubricating theory, and Finite Element Method. Laminar model and κ-ε turbulence model were adopted to model incompressible steady equations, and the equations were discreted by using Finite Volume Method and Second-order Finite Difference. By comparing the calculat

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Shao, Junpeng, Chunxi Dai, Xiaoqiu Xu, Yunfei Wang, Yanqin Zhang, and Chao Yin. "Numerical Calculation and Analysis of Dynamic Pressure Effect for Heavy Hydrostatic Bearing Disk with Multiple Oil Pads." Advanced Science Letters 4, no. 8 (2011): 2561–65. http://dx.doi.org/10.1166/asl.2011.1416.

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Yefremova, Galina, Dmitriy Linev, and Ksenija Yurgelya. "Bearing capacity of thick-walled pipeline shells under external hydrostatic pressure." Transactions of the Krylov State Research Centre, SPECIAL ISSUE 1 (April 16, 2019): 97–104. http://dx.doi.org/10.24937/2542-2324-2019-1-s-i-97-104.

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This paper gives analytical and numerical simulation results for pipeline system under external hydrostatic pressure takin into account variation of bending moments and longitudinal forces along the pipeline. The most loaded areas were studied numerically, in shell and solid formulation. More accurate bearing capacity calculations were performed taking into account maximum acceptable geometric and physical deviations of pipeline elements from regular shape. This study made it possible to develop an approach to taking into account joint effect of multiple loads upon bearing capacity of thick-wa

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Al Fatin, Hasan Jamil, and Murat G. Mustafin. "METHOD FOR DEFORMATION MONITORING OF WATER-BEARING DAMS." Vestnik SSUGT (Siberian State University of Geosystems and Technologies) 26, no. 1 (2021): 45–56. http://dx.doi.org/10.33764/2411-1759-2021-26-1-45-56.

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Monitoring of the condition of water-supporting hydraulic structures (dams) is carried out in ac-cordance with GOST R 22.1.11–2002, which determines the list of main load indicators including hy-drostatic pressure exerted on the dam. The article gives the list of the main indicators of the condition of water-supporting hydraulic structures and the development of hazardous processes in soil massifs, which provides for the assessment of vertical (precipitation) and horizontal movements of structures and their bases. Thus, monitoring is carried out in two areas of research: the first is geotechni

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Vasil'ev, A. "DEVELOPMENT OF A METHODOLOGY FOR CALCULATING THE PRESSURE DEVELOPMENT OF A METHOD FOR CALCULATING THE PRESSURE FIELD FOR THE NONISOTHERMAL FLOW OF A VISCOUS LIQUID IN GYROSTATIC BEARINGS WHEN PROCESSING LARGE-SIZED STEAM TURBINE SHAFTS." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 6, no. 7 (2021): 99–106. http://dx.doi.org/10.34031/2071-7318-2021-6-7-99-106.

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A mathematical model for calculating the pressure field of a hydrostatic support with an incomplete girth angle for a non-isothermal flow of a viscous working fluid using the iteration method is developed. The fundamental laws of hydrodynamics and the hydrodynamic theory of lubrication are used. The pressure field is calculated by jointly solving the Reynolds equation, the energy balance equation and the flow rate balance equation, as well as additional relationships for the thermophysical parameters of the working fluid, obtained by approximating the tabular values. The mathematical model of

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Liang, Peng, Changhou Lu, Wei Pan, and Shiyi Li. "A new method for calculating the static performance of hydrostatic journal bearing." Tribology International 77 (September 2014): 72–77. http://dx.doi.org/10.1016/j.triboint.2014.04.019.

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