The Experts below are selected from a list of 2478 Experts worldwide ranked by ideXlab platform
Yan-qin Zhang - One of the best experts on this subject based on the ideXlab platform.
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Research on the oil film temperature field of Hydrostatic Bearing with variable viscosity dynamic simulation and experiment
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology, 2019Co-Authors: Yan-qin Zhang, Sun Jichang, Peng-rui Kong, Xiangbin KongAbstract:In order to improve the lubrication performance of the double-rectangular cavity Hydrostatic thrust Bearing, this paper selects the temperature rise characteristics of Hydrostatic Bearing as the re...
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Application of dynamic mesh technology in the oil film flow simulation for Hydrostatic Bearing
Industrial Lubrication and Tribology, 2019Co-Authors: Yan-qin Zhang, Zhiquan Zhang, Xiangbin Kong, Hui JiangAbstract:Purpose The purpose of this paper was to obtain the lubrication characteristics of heavy Hydrostatic Bearing in heavy equipment manufacturing industry through theoretical analysis and numerical simulation. Design/methodology/approach This paper discusses the influence of oil film thickness variation on velocity field, outlet-L and outlet-R flow velocity under the Hydrostatic Bearing running in no-load 0 N, load 400 KN, full load 1,500 KN and rotating speeds of 10 r/min, 20 r/min, 30 r/min, 40 r/min, 50 r/min and 60 r/min, by using dynamic mesh technology and FLUENT software. Findings When the working table rotates clockwise, in the change process of oil film thickness, the fluid flow pattern of the lubricating oil at the edge of the sealing oil is the rule of laminar flow, and the oil cavity has a vortex. The outlet-R flow velocity becomes higher and higher by increasing the Bearing load and working table speed, and the flow velocity increases with the decrease in oil film thickness; the outlet-L flow velocity increases with the decrease in oil film thickness under low rotating speed (less than 10 r/min) condition and decreases with the decrease of oil film thickness under high rotating speed (more than 60 r/min) condition. Originality/value The influence of the oil film thickness on the flow state distribution of the oil film was analyzed under different working conditions, and the influence rules of oil film thickness on the flow velocity of Hydrostatic Bearing oil pad was obtained by using dynamic mesh technology.
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Thermal Deformation Impact Analysis on the Workbench of Large Size Hydrostatic Bearing Plate Structure
Materials Science Forum, 2016Co-Authors: Yan-qin Zhang, Xiao-dong Yang, Hua Lin Wang, Junpeng ShaoAbstract: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 study shows that the method of adding reinforcing plate structure to reduce the thermal deformation of Hydrostatic Bearing worktable is feasible, and determine the optimal position of reinforcing plate by comparing different results.
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rotational velocity influence research on pressure field of Hydrostatic Bearing with constant flow
Key Engineering Materials, 2014Co-Authors: Junpeng Shao, Yan-qin Zhang, Xiaodong Yu, Bo WuAbstract:Large size Hydrostatic Bearing is the core component of heavy CNC equipment. The influence of pressure, heating and running time can reduce film thickness during operation. This will directly affect machining accuracy and operation reliability of the entire machine. Aiming at the problem of influence of rotational velocity on carrying capacity of heavy Hydrostatic Bearing, use finite volume method (FVM) to simulate gap film pressure field of heavy Hydrostatic Bearing with Constant Flow and study pressure field distribution law on the conditions of the different rotational velocity and same cavity depth, oil cavity area, then optimize oil cavity structure. Results show that, pressure field distribution law of the different rotational velocity is basically identical, but its carrying capacity is different. From the relation curve of the pressure and rotational velocity can be seen, because of the dynamic pressure of existence, along with the increase of rotational velocity, carrying capacity gradually. The study is of vital theoretical significance for the improvement of machining accuracy of numerical control machine and the entire CNC equipment and provides valuable theoretical basis for the design of Hydrostatic guide rail in engineering practice.
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Flow Criterion Research on Fluid in Hydrostatic Bearing from Laminar to Turbulent Transition
International Journal of Hybrid Information Technology, 2014Co-Authors: Yan-qin Zhang, Junpeng Shao, Hui JiangAbstract:The multi- pad circular guide Hydrostatic Bearing of heavy-duty CNC machine is taken as the research object. Based on the lubrication properties of the heavy Hydrostatic Bearing, viscosity-temperature equation of interstitial fluid is established in various viscosities. In accordance with factory actual production, the fluid critical from laminar to turbulent is calculated by finite volume method. The inner flow field of Hydrostatic Bearing is simulated, when the rotating speed of workbench is 6r/min at different flow. The simulation results reveal flow distribution low and verify the reliability of the calculation. The results show that, the transition critical inlet fluid flow from laminar to turbulent of fluid in Hydrostatic Bearing is 22L/min. Through the above analysis and research, reveals the flow rule of the Hydrostatic Bearing oil film Bearing gap, provides a theoretical basis for actual Hydrostatic Bearing for engineering structural optimization design.
Hui Jiang - One of the best experts on this subject based on the ideXlab platform.
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Application of dynamic mesh technology in the oil film flow simulation for Hydrostatic Bearing
Industrial Lubrication and Tribology, 2019Co-Authors: Yan-qin Zhang, Zhiquan Zhang, Xiangbin Kong, Hui JiangAbstract:Purpose The purpose of this paper was to obtain the lubrication characteristics of heavy Hydrostatic Bearing in heavy equipment manufacturing industry through theoretical analysis and numerical simulation. Design/methodology/approach This paper discusses the influence of oil film thickness variation on velocity field, outlet-L and outlet-R flow velocity under the Hydrostatic Bearing running in no-load 0 N, load 400 KN, full load 1,500 KN and rotating speeds of 10 r/min, 20 r/min, 30 r/min, 40 r/min, 50 r/min and 60 r/min, by using dynamic mesh technology and FLUENT software. Findings When the working table rotates clockwise, in the change process of oil film thickness, the fluid flow pattern of the lubricating oil at the edge of the sealing oil is the rule of laminar flow, and the oil cavity has a vortex. The outlet-R flow velocity becomes higher and higher by increasing the Bearing load and working table speed, and the flow velocity increases with the decrease in oil film thickness; the outlet-L flow velocity increases with the decrease in oil film thickness under low rotating speed (less than 10 r/min) condition and decreases with the decrease of oil film thickness under high rotating speed (more than 60 r/min) condition. Originality/value The influence of the oil film thickness on the flow state distribution of the oil film was analyzed under different working conditions, and the influence rules of oil film thickness on the flow velocity of Hydrostatic Bearing oil pad was obtained by using dynamic mesh technology.
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Flow Criterion Research on Fluid in Hydrostatic Bearing from Laminar to Turbulent Transition
International Journal of Hybrid Information Technology, 2014Co-Authors: Yan-qin Zhang, Junpeng Shao, Hui JiangAbstract:The multi- pad circular guide Hydrostatic Bearing of heavy-duty CNC machine is taken as the research object. Based on the lubrication properties of the heavy Hydrostatic Bearing, viscosity-temperature equation of interstitial fluid is established in various viscosities. In accordance with factory actual production, the fluid critical from laminar to turbulent is calculated by finite volume method. The inner flow field of Hydrostatic Bearing is simulated, when the rotating speed of workbench is 6r/min at different flow. The simulation results reveal flow distribution low and verify the reliability of the calculation. The results show that, the transition critical inlet fluid flow from laminar to turbulent of fluid in Hydrostatic Bearing is 22L/min. Through the above analysis and research, reveals the flow rule of the Hydrostatic Bearing oil film Bearing gap, provides a theoretical basis for actual Hydrostatic Bearing for engineering structural optimization design.
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Criterion Study of Fluid Transition Flow from Laminar to Turbulent of Hydrostatic Bearing
Interdisciplinary Research Theory and Technology, 2013Co-Authors: Zhang Yanqin, Junpeng Shao, Hui JiangAbstract:Based on the lubrication properties of the heavy-duty Hydrostatic Bearing, and use many oil pad circular guide Hydrostatic Bearing on the Heavyduty CNC machine which is widely used as the research object. Under the condition of changing viscosity, establish the equation of lubricant viscositytemperature, and calculate the fluid critical flow from laminar to turbulent from Hydrostatic Bearing gap. Use the finite volume method, based on the actual working condition of the factory. When the rotational speed is 6r/min, simulate the value of Hydrostatic Bearing inner flow field at different flow, verify the reliability of the calculation results. The results showed that, in this paper the transition critical inlet fluid flow from laminar flow to turbulent of the Hydrostatic Bearing is 22L/min. Through the above analysis and research, reveals the flow rule of the Hydrostatic Bearing oil film Bearing gap, provides a theoretical basis for actual Hydrostatic Bearing for engineering structural optimization design.
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analysis on influence of oil film thickness on temperature field of heavy Hydrostatic Bearing in variable viscosity condition
Advanced Materials Research, 2011Co-Authors: Yan-qin Zhang, Xiao Qiu Xu, Hong-mei Li, Xiao-dong Yang, Hui Jiang, Xiao Yang YuAbstract: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 Bearing is much the same under various oil film thicknesses, but the influence of oil film thickness of temperature rise for Hydrostatic Bearing is greater. The results of numerical calculations actually response flow state inside Hydrostatic Bearing ，offer theoretical foundation for the design of Hydrostatic Bearing in engineering practice, and have important significance in improving operation stability of NC machine.
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Research on Influence of Cavity Depth on Load Capacity of Heavy Hydrostatic Bearing in Variable Viscosity Condition
Advanced Materials Research, 2010Co-Authors: Yan-qin Zhang, Xiao-dong Yang, Hui Jiang, Zhi Min ShiAbstract: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 revealed. The results show that, were the cavity depth shallow enough(≤2mm), Hydrostatic pressure and dynamic pressure of cavity would decline rapidly with the cavity depth increasing; whereas, were cavity deep enough(≥2mm), Hydrostatic pressure and dynamic pressure of cavity would change little with the cavity depth extending. This numerical simulation reflects real distribution of Bearing pressure appropriately, and provides a theoretical basis for Hydrostatic Bearing design and lectotype.
Junpeng Shao - One of the best experts on this subject based on the ideXlab platform.
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Thermal Deformation Impact Analysis on the Workbench of Large Size Hydrostatic Bearing Plate Structure
Materials Science Forum, 2016Co-Authors: Yan-qin Zhang, Xiao-dong Yang, Hua Lin Wang, Junpeng ShaoAbstract: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 study shows that the method of adding reinforcing plate structure to reduce the thermal deformation of Hydrostatic Bearing worktable is feasible, and determine the optimal position of reinforcing plate by comparing different results.
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rotational velocity influence research on pressure field of Hydrostatic Bearing with constant flow
Key Engineering Materials, 2014Co-Authors: Junpeng Shao, Yan-qin Zhang, Xiaodong Yu, Bo WuAbstract:Large size Hydrostatic Bearing is the core component of heavy CNC equipment. The influence of pressure, heating and running time can reduce film thickness during operation. This will directly affect machining accuracy and operation reliability of the entire machine. Aiming at the problem of influence of rotational velocity on carrying capacity of heavy Hydrostatic Bearing, use finite volume method (FVM) to simulate gap film pressure field of heavy Hydrostatic Bearing with Constant Flow and study pressure field distribution law on the conditions of the different rotational velocity and same cavity depth, oil cavity area, then optimize oil cavity structure. Results show that, pressure field distribution law of the different rotational velocity is basically identical, but its carrying capacity is different. From the relation curve of the pressure and rotational velocity can be seen, because of the dynamic pressure of existence, along with the increase of rotational velocity, carrying capacity gradually. The study is of vital theoretical significance for the improvement of machining accuracy of numerical control machine and the entire CNC equipment and provides valuable theoretical basis for the design of Hydrostatic guide rail in engineering practice.
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Flow Criterion Research on Fluid in Hydrostatic Bearing from Laminar to Turbulent Transition
International Journal of Hybrid Information Technology, 2014Co-Authors: Yan-qin Zhang, Junpeng Shao, Hui JiangAbstract:The multi- pad circular guide Hydrostatic Bearing of heavy-duty CNC machine is taken as the research object. Based on the lubrication properties of the heavy Hydrostatic Bearing, viscosity-temperature equation of interstitial fluid is established in various viscosities. In accordance with factory actual production, the fluid critical from laminar to turbulent is calculated by finite volume method. The inner flow field of Hydrostatic Bearing is simulated, when the rotating speed of workbench is 6r/min at different flow. The simulation results reveal flow distribution low and verify the reliability of the calculation. The results show that, the transition critical inlet fluid flow from laminar to turbulent of fluid in Hydrostatic Bearing is 22L/min. Through the above analysis and research, reveals the flow rule of the Hydrostatic Bearing oil film Bearing gap, provides a theoretical basis for actual Hydrostatic Bearing for engineering structural optimization design.
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Criterion Study of Fluid Transition Flow from Laminar to Turbulent of Hydrostatic Bearing
Interdisciplinary Research Theory and Technology, 2013Co-Authors: Zhang Yanqin, Junpeng Shao, Hui JiangAbstract:Based on the lubrication properties of the heavy-duty Hydrostatic Bearing, and use many oil pad circular guide Hydrostatic Bearing on the Heavyduty CNC machine which is widely used as the research object. Under the condition of changing viscosity, establish the equation of lubricant viscositytemperature, and calculate the fluid critical flow from laminar to turbulent from Hydrostatic Bearing gap. Use the finite volume method, based on the actual working condition of the factory. When the rotational speed is 6r/min, simulate the value of Hydrostatic Bearing inner flow field at different flow, verify the reliability of the calculation results. The results showed that, in this paper the transition critical inlet fluid flow from laminar flow to turbulent of the Hydrostatic Bearing is 22L/min. Through the above analysis and research, reveals the flow rule of the Hydrostatic Bearing oil film Bearing gap, provides a theoretical basis for actual Hydrostatic Bearing for engineering structural optimization design.
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Study on Flowability of the Gap Oil Film of the Multi-oil Pad Hydrostatic Bearing with Variable Viscosity
2009 International Conference on Intelligent Human-Machine Systems and Cybernetics, 2009Co-Authors: Junpeng Shao, Yan-qin Zhang, Hong-mei Li, Xiao-dong Yang, Xiaodong Yu, Hui JiangAbstract:According to the large size multi-oil pad Hydrostatic Bearing, the mathematical model of three-dimensional flow of the gap oil film of the Hydrostatic Bearing is established in considering the influence of variable viscosity and centrifugal force condition. The finite element method and the finite volume method are used to simulate the flow field of the gap oil film of the large size Hydrostatic Bearing, and the flowing law of the gap oil film of the Hydrostatic Bearing is revealed. The results show that the interior of the gap oil exists turbulence when the inlet flowrate and the rotating velocity of the worktable are greater than a critical value. then The critical inlet flowrate and the worktable critical rotating velocity of the oil cavity from the laminar to the turbulence are found. The simulation matches well with the theoretical calculation value by comparative analysis of the simulation and the theoretical calculation value. That provides the theoretical basis for the characteristic research of the variable viscosity fluid and the theoretical calculation method for the large size Hydrostatic Bearing designing. method for the large size Hydrostatic Bearing designing.
Xiao-dong Yang - One of the best experts on this subject based on the ideXlab platform.
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Thermal Deformation Impact Analysis on the Workbench of Large Size Hydrostatic Bearing Plate Structure
Materials Science Forum, 2016Co-Authors: Yan-qin Zhang, Xiao-dong Yang, Hua Lin Wang, Junpeng ShaoAbstract: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 study shows that the method of adding reinforcing plate structure to reduce the thermal deformation of Hydrostatic Bearing worktable is feasible, and determine the optimal position of reinforcing plate by comparing different results.
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analysis on influence of oil film thickness on temperature field of heavy Hydrostatic Bearing in variable viscosity condition
Advanced Materials Research, 2011Co-Authors: Yan-qin Zhang, Xiao Qiu Xu, Hong-mei Li, Xiao-dong Yang, Hui Jiang, Xiao Yang YuAbstract: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 Bearing is much the same under various oil film thicknesses, but the influence of oil film thickness of temperature rise for Hydrostatic Bearing is greater. The results of numerical calculations actually response flow state inside Hydrostatic Bearing ，offer theoretical foundation for the design of Hydrostatic Bearing in engineering practice, and have important significance in improving operation stability of NC machine.
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Viscosity Influence Research on Load Capacity of Heavy Hydrostatic Bearing
Key Engineering Materials, 2010Co-Authors: Yan-qin Zhang, Xiao-dong Yang, Gui Tao Sun, Zhi Min ShiAbstract: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, viscosity impose a minor influence on cavity pressure of Hydrostatic Bearing when rational velocity is low; whereas, when rational velocity is high, especially to the heavy Hydrostatic Bearing which with high liner velocity influence of viscosity changing must be taken into account in calculation. Numerical simulation results reflect the pressure distributing state of Bearing veritably; furthermore, these provide theoretical basis for Hydrostatic Bearing design and lectotype in practical application.
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Research on Influence of Cavity Depth on Load Capacity of Heavy Hydrostatic Bearing in Variable Viscosity Condition
Advanced Materials Research, 2010Co-Authors: Yan-qin Zhang, Xiao-dong Yang, Hui Jiang, Zhi Min ShiAbstract: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 revealed. The results show that, were the cavity depth shallow enough(≤2mm), Hydrostatic pressure and dynamic pressure of cavity would decline rapidly with the cavity depth increasing; whereas, were cavity deep enough(≥2mm), Hydrostatic pressure and dynamic pressure of cavity would change little with the cavity depth extending. This numerical simulation reflects real distribution of Bearing pressure appropriately, and provides a theoretical basis for Hydrostatic Bearing design and lectotype.
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Study on Flowability of the Gap Oil Film of the Multi-oil Pad Hydrostatic Bearing with Variable Viscosity
2009 International Conference on Intelligent Human-Machine Systems and Cybernetics, 2009Co-Authors: Junpeng Shao, Yan-qin Zhang, Hong-mei Li, Xiao-dong Yang, Xiaodong Yu, Hui JiangAbstract:According to the large size multi-oil pad Hydrostatic Bearing, the mathematical model of three-dimensional flow of the gap oil film of the Hydrostatic Bearing is established in considering the influence of variable viscosity and centrifugal force condition. The finite element method and the finite volume method are used to simulate the flow field of the gap oil film of the large size Hydrostatic Bearing, and the flowing law of the gap oil film of the Hydrostatic Bearing is revealed. The results show that the interior of the gap oil exists turbulence when the inlet flowrate and the rotating velocity of the worktable are greater than a critical value. then The critical inlet flowrate and the worktable critical rotating velocity of the oil cavity from the laminar to the turbulence are found. The simulation matches well with the theoretical calculation value by comparative analysis of the simulation and the theoretical calculation value. That provides the theoretical basis for the characteristic research of the variable viscosity fluid and the theoretical calculation method for the large size Hydrostatic Bearing designing. method for the large size Hydrostatic Bearing designing.
Shi Gang Wang - One of the best experts on this subject based on the ideXlab platform.
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Study on Capacity of Vertical Lathe for Heavy Hydrostatic Bearing
Materials Science Forum, 2014Co-Authors: Shi Gang Wang, Zi Jian QiuAbstract: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 unchanged, with the constant improvement of the speed, start from the center of the biggest oil cavity pressure peak around gradually diminishing, isobar and high oil and shape of cavity shape basically the same. Numerical calculation results reflect the inside of the Bearing pressure distribution, the simulation results for the engineering practice the Bearing oil cavity structure optimization design provides a theoretical basis.
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Characteristic Study on Temperature Field of Hydrostatic Bearing of Hydroforming Machine
Advanced Materials Research, 2012Co-Authors: Shi Gang WangAbstract:Temperature field of Hydrostatic Bearing of hydroforming machine is studied in this paper,SOLIDWORKS2009 is used to model the simulational modeling of Hydrostatic Bearing of hydroforming machine, and then experiments based on hydroforming machine is conducted by using the finite element software FLUENT6.3 and GAMBIT, with the simulational results that the temperature field of Hydrostatic Bearing. Finally, the relationship between temperature field and angle-velocity is concluded by analyzing the simulational experiments results. The simulational results provide theoretical support and effective conference for the optimized layout of the heat transfer of Hydrostatic Bearing with heat transfer, which will reduce the experimental costs and the development time of the Hydrostatic Bearing.
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Characteristic Analysis on Heavy Hydrostatic Bearing of DVT500 Vertical Lathe
Applied Mechanics and Materials, 2012Co-Authors: Shi Gang WangAbstract:With increasing demands for product quality, and the performance of assembly equipment plays a decisive role for product quality, national experts and scholars conduct in-depth research on the performance of the assembly equipment. In this paper, a research simulation on Hydrostatic Bearing performance of heavy-duty vertical lathes DVT(digital vertical tool) 500 is carried out by using finite element software FLUENT to simulate the fluid pressure field and temperature field distribution of sector oil recess at different work platform rotational speed. The law of these field distributions is also obtained. The results show that: the rotational speed of the work platform has a greater impact on pressure field and temperature field of gap fluid flow. Numerical results can reflect the true Hydrostatic Bearing fluid movement, the actual simulation results provide a theoretical basis for optimization design of the Engineering Hydrostatic Bearing oil cavity.
