CN113158369B - Oil film flow simulation monitoring method for oil sealing edge of oil pad of hydrostatic thrust bearing - Google Patents
Oil film flow simulation monitoring method for oil sealing edge of oil pad of hydrostatic thrust bearing Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 238000004088 simulation Methods 0.000 title claims abstract description 14
- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 12
- 238000004364 calculation method Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 7
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- 230000000737 periodic effect Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 77
- 230000003068 static effect Effects 0.000 abstract description 16
- 239000010687 lubricating oil Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
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- 230000017525 heat dissipation Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- G06F30/28—Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
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Abstract
The invention discloses an oil film flow simulation monitoring method for an oil pad oil seal of a static pressure thrust bearing, which mainly relates to a method for monitoring oil film flow values of double rectangular cavity oil pad oil seals of the static pressure thrust bearing under different working conditions by utilizing FLUENT software. The method comprises the following steps: (1) Establishing a double-rectangular-cavity oil pad oil film three-dimensional model by utilizing three-dimensional modeling software, and guiding the three-dimensional model into ICEM CFD software for high-quality grid division; (2) Scaling the divided three-dimensional grid model by adopting FLUENT software, checking grid information and checking grid quality; (3) selecting a solver type and a physical model; (4) setting materials and defining calculation domains and boundary conditions; (5) determining a solving method and solving control parameters; (6) defining a lubricating oil flow monitoring surface of the oil pad oil sealing edge; (7) initializing and setting a reasonable iteration step number; (8) Residual convergence case selection 10 ‑3 The fluctuation is stable, the trend is obvious, and the specific value of the flow of the lubricating oil at the oil edge of the oil pad can be checked; the invention is suitable for the field of lubricating oil film simulation monitoring of the hydrostatic bearing technology of the heavy-duty hydrostatic machine tool.
Description
Technical Field
The invention relates to an oil film flow simulation monitoring method for an oil pad oil sealing edge of a static pressure thrust bearing, in particular to an oil film flow simulation monitoring method for a double rectangular cavity oil pad oil sealing edge of a static pressure thrust bearing by utilizing FLUENT software, and belongs to the technical field of static pressure bearings of heavy static pressure machine tools.
Background
The hydrostatic thrust bearing has the advantages of low friction, no abrasion, high rigidity, large damping, large bearing capacity, stable operation and the like in the operation process, becomes a key component for high-end manufacturing equipment to realize high-precision stable operation, and is widely applied to the important industrial fields of military, nuclear power, ship manufacturing, aerospace, national defense and other countries. However, under the high-speed heavy-load running condition of the static pressure thrust bearing, the shearing heat value of the clearance oil film is increased, the flow carried by oil film hot oil is increased, the heat is continuously accumulated and cannot be diffused, so that the oil film is unevenly thinned, the static pressure bearing capacity is reduced, local oil film rupture and dry friction phenomena can occur when the static pressure bearing capacity is serious, the temperature of the oil film is finally increased, the thermal deformation of a machine tool occurs, and the running precision and stability of heavy numerical control machining equipment are seriously influenced. However, in the theoretical derivation of the oil film temperature rise equation, the main factor directly influencing the oil film temperature is the flow value flowing through each place, and the research on the simulation method of the specific flow value flowing through each place of the lubricating oil of the static pressure thrust bearing is less at home and abroad, so that the research on the simulation monitoring method of the oil film flow of the oil pad sealing edge of the static pressure thrust bearing is very important, the basis and thought are provided for the further optimization design of the oil film temperature rise problem of the static pressure thrust bearing, and the theoretical basis is also provided for the machining precision and the running stability of the numerical control equipment under the high-speed heavy-load working condition.
Disclosure of Invention
The invention aims to monitor the oil film flow value of the oil sealing edge of the oil pad of the hydrostatic thrust bearing under different working conditions by utilizing FLUENT software, obtain the oil film flow value, provide real flow for the calculation of the oil film temperature rise of the hydrostatic thrust bearing, further solve the problem of troublesome oil film temperature rise, and provide a theoretical basis for temperature rise control and heat dissipation scheme determination.
The oil film flow simulation monitoring method of the oil sealing edge of the oil pad of the hydrostatic thrust bearing is realized by the following technical scheme; (1) A three-dimensional model of a double rectangular cavity oil pad oil film is established by using Creo three-dimensional modeling software (12 oil pads are uniformly and symmetrically distributed on a circumferential guide rail of a static pressure thrust bearing, and 1/12 of the whole oil film is taken for calculation and analysis as the specific structure, working parameters and performance of each oil pad are the same), and the three-dimensional model is imported into ICEM CFD software for high-quality grid division;
(2) Opening FLUENT software, importing a divided three-dimensional grid model, performing scaling treatment on the model, checking grid information and checking grid quality;
(3) Selecting a solver type and a physical model;
(4) Setting materials and defining a calculation domain and boundary conditions;
(5) Determining a solving method and solving control parameters;
(6) Defining an oil film flow monitoring surface of an oil pad oil sealing edge;
(7) Initializing and setting a reasonable iteration step number;
(8) And the residual error convergence condition is 10-3, the fluctuation is stable, the trend of the fluctuation is obvious, and the specific value of the oil film flow of the oil edge of the oil pad can be checked.
The invention has the beneficial effects that
According to the invention, the actual various working conditions of the static pressure thrust bearing workbench on site are subjected to oil pad oil sealing edge oil film flow simulation monitoring by using a computer, flow parameters after oil film temperature rise are obtained and researched, the main influence rules of thinning of the static pressure thrust bearing oil film and reduction of bearing capacity are revealed, and a technical foundation is laid for the follow-up optimal design of the static pressure thrust bearing and realization of high efficiency and high precision. The computer numerical simulation process accords with the engineering actual working condition, a designer can clearly see specific numerical values of oil film flow at each position, the numerical simulation process is used for calculating a series of equations such as oil film temperature, oil film loss and the like, and a numerical simulation result has important practical value. The method has simple process and convenient operation, can acquire a large amount of reliable data in a short time, and is a different choice for monitoring specific values of oil film flow.
Drawings
For ease of illustration, the invention is described in detail by the following detailed description and the accompanying drawings.
FIG. 1 is a flow chart of a simulated monitoring method for oil film flow of a seal oil edge of a hydrostatic thrust bearing oil pad.
FIG. 2 is a three-dimensional model of the single double rectangular cavity oil pad film referred to in step A.
FIG. 3 is a diagram of a model operation tree and parameter setting panel of FLUENT software.
Fig. 4 is a schematic diagram of the positions of the 4 oil film flow monitoring surfaces mentioned in step F.
Fig. 5 is a graph of the iteration residual referred to in step H.
Fig. 6 is a graph of oil film flow values on the sealing edges of the double rectangular cavity oil pad mentioned in step H.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention.
Step A: and establishing a three-dimensional model of the double rectangular cavity oil pad oil film according to different working conditions by using Creo or other modeling software, importing the three-dimensional model into ICEM CFD software for high-quality grid division, and exporting the three-dimensional model in a. Msh file.
Step B1: and starting the FLUENT module, and activating the 3D model in the Dimension option, wherein the measurement module can be accessed only when 3D is selected, double Precision under Options is further checked for high-Precision solution, and the OK button is clicked to access the FLUENT interface.
Step B2: importing a divided high-quality grid model, selecting Scale … in General nodes in a Setup setting panel, and scaling unit m to mm; check is selected to Check grid information, mainly including geometry, volume statistics and grid surface area statistics of the grid model, and the parameter most concerned is minimum volume, which must be ensured to be positive.
Step C: user-Defined in the selection menu bar Defined, using the paste Wen Fangcheng μ= 3.5665E31 (T 0 +ΔT) -13.22838 Performing self-defined viscous temperature control UDF program setting; selecting model nodes, and starting Viscous Heating in Energy-on and Viscous-Laminar so as to calculate Energy in the Laminar flow model solving process; wherein, the self-defined viscous temperature control UDF program in this patent is:
step D1: materials nodes are selected to set material parameters, fluid is selected, corresponding Density is set to 880kg/m3, cp (Specific Heat) is 1884J/(kg.K), and Thermal Conductivity is 0.132 w/m.K; selecting Cell Zone Condition nodes to set computing domain attributes, including computing domain working media, motion states and the like;
step D2: selecting Boundary Conditions nodes to set boundary conditions of a calculation domain, wherein the calculation domain comprises in_left, in_right, moving-wall, out_former and out_ latter, periodic _left; the method comprises the steps of selecting a Speed inlet velocity-inlet type by in_left and in_right, setting the rotation Speed and inlet flow Speed value according to different rotation speeds and loads, setting the inlet oil temperature to be 298K, selecting a Pressure outlet-outlet type by out_former and out_later, defining the outlet oil temperature to be 298K by Gauge Pressure to be 0, and inputting corresponding rotation speeds in Speed (m/s) in a moving-wall option;
step E1: in the Solution setting panel, solution Methods nodes are selected to set a solving algorithm, wherein a steady-state calculation simple EC separation algorithm is selected in a Scheme option, a Second Order Second-Order format is selected in a Pressure option, a first-Order First Order Upwind windward format is selected in a Momentum option, and a Second Order Upwind Second-Order windward format is selected in an Energy option;
step E2: the Solution Controls node is selected to set solving control parameters, the sub-relaxation factor increases in a certain range along with the increase of the load, the variation range of the relaxation factor of the Pressure equation is 0.1-0.3, the relaxation factor ranges of the momentum and energy equations are 0.3-0.7, and the rest adopts FLUENT default setting.
Step F: selecting a monitor node to define an oil film flow monitor of an oil pad oil sealing edge, clicking a Create in a Surface monitor option to Create a flow monitoring Surface, selecting a Plane … under a New Surface option, clicking a bound, and inputting three coordinate values of the required monitoring Surface to click a Create end page, wherein in the invention, the coordinates selected by Plane-1 are (-144.5,920,25.1), (144.5,830,25.1) and (-144.5,875,0.0743), the coordinates selected by Plane-2 are (-144.5,820,25.1), (144.5,730,25.1) and (-144.5,775,0.0743), the coordinates selected by Plane-3 are (144.5,920,25.1), (144.5,830,25.1) and (144.5,875,0.0995), the coordinates selected by Plane-4 are (144.5,820,25.1), (144.5,730,25.1) and (144.5,775,0.0995), and the unit is mm;
step G: standard Initialization under the Solution Initialization node is selected for initialization; selecting Run Calculation nodes to set iteration steps, setting the iteration steps to 2000, and finally selecting Calculation to Calculate and solve;
step H: checking whether the residual error convergence condition is lower than 10 < -3 >, the fluctuation is stable, the obvious descending trend exists, if not, the iteration step number can be increased to 5000 steps at maximum, or the sub-relaxation factor parameter value in the step E2 is modified, the iteration step number is input again for calculation and solving until the residual error convergence condition meets the requirement, and the oil film flow value of the oil pad sealing edge can be checked.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited by the foregoing examples, which are provided by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is intended to be within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. The oil film flow simulation monitoring method for the oil sealing edge of the oil pad of the hydrostatic thrust bearing is characterized in that the method for simulating and monitoring the oil film flow of the oil sealing edge of the oil pad of the hydrostatic thrust bearing by utilizing FLUENT software is realized by the following steps:
step A: establishing a required three-dimensional model according to different working conditions by using Creo modeling software, importing the three-dimensional model into ICEM CFD software for high-quality grid division, and exporting the three-dimensional model in a msh file;
step B1: starting an FLUENT module, activating a 3D model in a Dimension option, entering a measurement module, further selecting Double Precision under Options to carry out high-Precision solution, and clicking an OK button to enter an FLUENT interface;
step B2: importing a divided high-quality grid model, selecting Scale … in General nodes in a Setup setting panel, and scaling unit m to mm; check is selected to Check grid information, wherein the Check mainly comprises geometric dimension, volume statistics and grid surface area statistics of a grid model, and the parameter which needs to be focused is a minimum volume and must be ensured to be positive;
step C: selecting User-Defined in the menu bar definition to perform self-Defined viscous temperature control UDF program setting; selecting model nodes, and starting Viscous Heating in Energy-on and Viscous-Laminar so as to calculate Energy in the Laminar flow model solving process;
step D1: selecting a Fluid in the Materials node to set material parameters, and selecting a Cell Zone Condition node to set calculation domain attributes, including calculation domain working media and motion states;
step D2: selecting Boundary Conditions nodes for computing domain boundary condition setting, wherein the computing domain comprises in_left, in_right, moving-wall, out_former and out_ latter, periodic _left;
step E1: in the Solution setting panel, solution Methods nodes are selected to set a solving algorithm, wherein a steady-state calculation simple EC separation algorithm is selected in a Scheme option, a Second Order Second-Order format is selected in a Pressure option, a first-Order First Order Upwind windward format is selected in a Momentum option, and a Second Order Upwind Second-Order windward format is selected in an Energy option;
step E2: selecting a Solution Controls node to set a solving control parameter, wherein the sub-relaxation factor increases in a certain range along with the increase of the load, the variation range of the relaxation factor of a Pressure equation is 0.1-0.3, the relaxation factor ranges of momentum and energy equations are 0.3-0.7, and the rest adopts FLUENT default setting;
step F: selecting a monitor node to define an oil film flow monitor of an oil pad oil sealing edge, clicking a Create in a Surface monitor option to Create a flow monitoring Surface, selecting a Plane … in a New Surface option, clicking a bound, and inputting three coordinate values of the required monitoring Surface to click a Create ending page;
step G: standard Initialization under the Solution Initialization node is selected for initialization; selecting Run Calculation nodes to set iteration steps, and finally selecting Calculation to Calculate and solve;
step H: checking whether the residual convergence is below 10 -3 And the fluctuation is stable, the fluctuation has obvious descending trend, if not, the iteration step number can be increased to 5000 steps at maximum, or the parameter value of the sub-relaxation factor in the step E2 is modified, the iteration step number is input again for calculation and solving until the residual convergence condition meets the requirement, and the oil pad oil sealing edge oil film flow value can be checked;
the viscosity Wen Fangcheng used in step C is μ= 3.5665E31 (T 0 +ΔT) -13.22838 The material parameter Density set in the step D1 is 880kg/m 3 Specific Heat is 1884J/(kg.K), thermal Conductivity is 0.132 w/m.K;
the coordinates of the four monitoring surfaces in the step F are respectively as follows: coordinates (-144.5,920,25.1), (-144.5,830,25.1) and (-144.5,875,0.0743) for plane-1 selection, coordinates (-144.5,820,25.1), (-144.5,730,25.1) and (-144.5,775,0.0743) for plane-2 selection, coordinates (144.5,920,25.1), (144.5,830,25.1) and (144.5,875,0.0995) for plane-3 selection, coordinates (144.5,820,25.1), (144.5,730,25.1) and (144.5,775,0.0995) for plane-4 selection in mm.
2. The method for simulating and monitoring the oil film flow of the oil seal edge of the hydrostatic thrust bearing oil pad according to claim 1, wherein in_left and in_right in the step D2 select a Speed inlet velocity-inlet type, set the Speed and inlet flow velocity values for different speeds and loads, set the inlet oil temperature to be 298K, set the out_former and out_former select a Pressure outlet Pressure-outlet type, set the Gauge Pressure to be 0, define the outlet oil temperature to be 298K, and input the corresponding Speed in Speed (m/s) in the moving-wall option.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141084A (en) * | 2011-03-30 | 2011-08-03 | 哈尔滨理工大学 | Numerical simulation method for temperature and thickness relation of static thrust bearing gap oil film based on film thickness variation |
| CN202486573U (en) * | 2011-12-28 | 2012-10-10 | 重庆机床(集团)有限责任公司 | Control system for dynamically monitoring thickness of hydrostatic guide rail oil film |
| CN103246786A (en) * | 2013-05-24 | 2013-08-14 | 哈尔滨理工大学 | Method for building lubricating oil film model after thermal mechanical coupling deformation of hydrostatic thrust bearing |
| CN104598666A (en) * | 2014-12-01 | 2015-05-06 | 哈尔滨理工大学 | Large-scale hydrostatic support critical load parameter acquiring method |
| CN104615801A (en) * | 2014-12-03 | 2015-05-13 | 哈尔滨理工大学 | Method for determining rotational speed value of heavy type hydrostatic bearing in critical lubricating state |
| CN109002569A (en) * | 2018-01-12 | 2018-12-14 | 哈尔滨理工大学 | A method of establishing static pressure oil film motion layer boundary condition |
| CN110083924A (en) * | 2019-04-23 | 2019-08-02 | 哈尔滨理工大学 | Film lubrication performance simulation method under hydrostatic thrust bearing unbalance loading operating condition |
| CN209831100U (en) * | 2018-12-29 | 2019-12-24 | 武汉重型机床集团有限公司 | Constant oil film thickness system for hydrostatic bearing of liquid lubricating oil constant delivery pump |
-
2021
- 2021-04-19 CN CN202110418919.2A patent/CN113158369B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141084A (en) * | 2011-03-30 | 2011-08-03 | 哈尔滨理工大学 | Numerical simulation method for temperature and thickness relation of static thrust bearing gap oil film based on film thickness variation |
| CN202486573U (en) * | 2011-12-28 | 2012-10-10 | 重庆机床(集团)有限责任公司 | Control system for dynamically monitoring thickness of hydrostatic guide rail oil film |
| CN103246786A (en) * | 2013-05-24 | 2013-08-14 | 哈尔滨理工大学 | Method for building lubricating oil film model after thermal mechanical coupling deformation of hydrostatic thrust bearing |
| CN104598666A (en) * | 2014-12-01 | 2015-05-06 | 哈尔滨理工大学 | Large-scale hydrostatic support critical load parameter acquiring method |
| CN104615801A (en) * | 2014-12-03 | 2015-05-13 | 哈尔滨理工大学 | Method for determining rotational speed value of heavy type hydrostatic bearing in critical lubricating state |
| CN109002569A (en) * | 2018-01-12 | 2018-12-14 | 哈尔滨理工大学 | A method of establishing static pressure oil film motion layer boundary condition |
| CN209831100U (en) * | 2018-12-29 | 2019-12-24 | 武汉重型机床集团有限公司 | Constant oil film thickness system for hydrostatic bearing of liquid lubricating oil constant delivery pump |
| CN110083924A (en) * | 2019-04-23 | 2019-08-02 | 哈尔滨理工大学 | Film lubrication performance simulation method under hydrostatic thrust bearing unbalance loading operating condition |
Non-Patent Citations (3)
| Title |
|---|
| FUNDAMENTALS OF FLUID FILM THRUST BEARING OPERATION AND MODELING;Minhui He 等;《OAKTrust Home 》;1-26 * |
| 多油垫静压推力轴承润滑性能动态仿真研究;孔祥滨;《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》;20190115(第（2019）01期);C029-294页参见2.2、3.2.2、3.3.2、5.3节 * |
| 恒流环形腔多油垫静压推力轴承油膜刚度特性;于晓东;《哈尔滨工程大学学报》;20170928;第38卷(第2期);3.1节 * |
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