CN106021729A - Method for solving hot oil carrying values of heavy hydrostatic bearing under different loads - Google Patents
Method for solving hot oil carrying values of heavy hydrostatic bearing under different loads Download PDFInfo
- Publication number
- CN106021729A CN106021729A CN201610340438.3A CN201610340438A CN106021729A CN 106021729 A CN106021729 A CN 106021729A CN 201610340438 A CN201610340438 A CN 201610340438A CN 106021729 A CN106021729 A CN 106021729A
- Authority
- CN
- China
- Prior art keywords
- deep fat
- heavy
- hydrostatic support
- value
- different loads
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
- G06F30/367—Design verification, e.g. using simulation, simulation program with integrated circuit emphasis [SPICE], direct methods or relaxation methods
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
Heating and temperature rise in operation of a heavy hydrostatic bearing belong to a hot issue. The hot oil carrying condition of the heavy hydrostatic bearing is obtained through a fluid numerical solution method, so that hot oil carrying factor values under the different loads are obtained and are compared with a calculated value of a theoretical formula, and thus the accuracy of the numerical solution method is verified. The method replaces the complicated traditional formula derivation process, the computation period is saved, the computation efficiency can be improved by more than two times, and the method aims at effectively predicting and solving the problems of heat effect and the like of the hydrostatic bearing in engineering. The method comprises the following steps of step A establishing a hot oil carrying surface of single oil pad of the heavy hydrostatic bearing; step B utilizing the theoretical formula to work out face flow values of a face 3 and a face 2 and a value of a hot oil carrying factor; step C determining numerical simulation conditions of the heavy hydrostatic bearing; step D computing the hot oil carrying values of the heavy hydrostatic bearing under the different loads; and step E carrying out data result post-processing. The invention is applied to the method for solving the hot oil carrying values of the heavy hydrostatic bearing under the different loads.
Description
Technical field
The present invention relates to heavy hydrostatic support deep fat under a kind of different loads and carry method of value solving.
Background technology
The lubricating system of liquid static-pressure support is fluid film lubrication, belongs to full fluid friction bearing, has coefficient of friction pole
Low, start the advantages such as power is minimum, support accuracy is high, oil film rigidity is big, efficiency is high, anti-vibration and length in service life, thus
Machine-tool industry is developed faster and is applied.In recent years, the heavy operating heating of hydrostatic support and temperature rise always with
Being the hot issues studied of scholars, the heavy wool cushion constant current heavy type hydrostatic support that the present invention relates to, support body is tied
Structure size is very big, and workbench travel line speed is the highest, and its Heating mechanism finds through early stage theory analysis, except oil-shear and
System heat generation causes outside lubricating oil film temperature rise, and some thermal source derives from deep fat and carries.Therefore, the present invention proposes one not
Method of value solving is carried in order to obtain under heavy hydrostatic support difference operating mode with hydrostatic support deep fat heavy under load
Deep fat Carriage, improve hydrostatic support operational reliability.
Summary of the invention
The present invention is to solve that hydrostatic support deep fat is carried the accuracy of problem solving and efficiency relatively by existing computational methods
The present situation of difference, provides heavy hydrostatic support deep fat under a kind of different loads and carries method of value solving for this.
Under a kind of different loads, heavy hydrostatic support deep fat carries method of value solving and realizes according to the following steps:
Step A, creating the deep fat of the heavy single lubricating pad of hydrostatic support, to carry face as follows:
In order to deep fat Carriage can be given expression in numerical simulation more intuitively, with that is single lubricating pad in 1/24 in round guide
For object of study, as it is shown in figure 1, be provided with cross section 3, named face3 on the single lubricating pad of oil film, this cross section is positioned at single oil
On pad at sealing oil edge and the oil-recovery tank delivery position on right side；Lubricating pad is provided with the most again in sealing oil edge week cross section 2, named
face2.It should be noted that face3 and face2 represents the cross section situation at carrying oil film at the thinnest oil film respectively.
Step B, the deep fat utilizing early stage to be derived from carry computing formula, the heavy hydrostatic support knot that will the present invention relates to
Structure parameter and duty parameter substitute into, and list the calculated value of deep fat Carriage, including the surface current amount of face3 and face2
Value and deep fat carry the value of factor K.
Step C, determine heavy hydrostatic support numerical simulation condition:
According to the carrying situation in heavy hydrostatic support real work, respectively 0t, 20t, 40t, 60t, 80t, 100t, 120t,
Under 140t, 160t nine kinds carrying operating mode, single lubricating pad Fuel film model is carried out numerical simulation, it is contemplated that the calculated results analysis
The conclusion drawn, selects to carry deep fat phenomenon and has the rotating speed of turning influence and carry out numerical computations, i.e. simulation workbench is inverse
Hour hands are rotated in the deep fat Carriage of the lower nine kinds of carrying operating modes of 2r/min rotating speed.
Step D, carry out under different loads heavy hydrostatic support deep fat and carry numerical computations.
Step E, carry out data result post processing, draw the flow volume change values numerical value of face3 and face2 under different loads
Graph of simulation results, and contrast with the value of calculation of derivation formula, draw correlation curve figure, by this invention of contrast verification
Heavy hydrostatic support deep fat carries the effectiveness of method of value solving.
Invention effect:
The present invention obtains the deep fat Carriage of heavy hydrostatic support by the method for liquid numerical simulation, has drawn different loads
Under deep fat carry factor values, contrasted by the analogue value and theoretical formula method value, situation of coincideing is preferable, demonstrates number
The accuracy of value method for solving.The method can be generalized in the hydrostatic support structure of other seriation, instead of tradition complicated
Formulation process, save the calculating cycle, computational efficiency can improve more than twice, more can effectively predict and solve engineering
The problems such as the heat effect of upper hydrostatic support.
Accompanying drawing explanation
Fig. 1 is face3 Yu the face2 location drawing at the present invention single lubricating pad sealing oil edge；
Fig. 2 to 19 is the flow simulation value of face3 and face2 in detailed description of the invention under different loads；
Figure 20 is that in detailed description of the invention, deep fat carries factor variations curve.
Detailed description of the invention
Under a kind of different loads, heavy hydrostatic support deep fat carries method of value solving and realizes according to the following steps:
Step A, creating the deep fat of the heavy single lubricating pad of hydrostatic support, to carry face as follows:
In order to deep fat Carriage can be given expression in numerical simulation more intuitively, with that is single lubricating pad in 1/24 in round guide
For object of study, as it is shown in figure 1, be provided with cross section 3, named face3 on the single lubricating pad of oil film, this cross section is positioned at single oil
On pad at sealing oil edge and the oil-recovery tank delivery position on right side；Lubricating pad is provided with the most again in sealing oil edge week cross section 2, named
face2.It should be noted that face3 and face2 represents the cross section situation at carrying oil film at the thinnest oil film respectively.
When large scale hydrostatic support rotary table rotates counterclockwise, the flow of face3 represents single lubricating pad oil sealing
The total flow that limit week fluid domain to the right flows out or flows into, due to the cycle of many lubricating pads hydrostatic support gap oil film mobility status
Property, so face2 flow can represent fluid domain flow on the left of single lubricating pad sealing oil edge, it also is able to represent a lubricating pad simultaneously
Participate in the oil film sheared and flow out total flow.
Step B, the deep fat utilizing early stage to be derived from carry computing formula, the heavy hydrostatic support knot that will the present invention relates to
Structure parameter and duty parameter substitute into, and list the calculated value of deep fat Carriage in table B, including face3's and face2
Surface current value and deep fat carry the value of factor K.
Q under different loads operating mode during table B 2r/min3、Q2, K theoretical value
Step C, determine heavy hydrostatic support numerical simulation condition:
According to the carrying situation in heavy hydrostatic support real work, respectively 0t, 20t, 40t, 60t, 80t, 100t, 120t,
Under 140t, 160t nine kinds carrying operating mode, single lubricating pad Fuel film model is carried out numerical simulation, it is contemplated that the calculated results analysis
The conclusion drawn, selects to carry deep fat phenomenon and has the rotating speed of turning influence and carry out numerical computations, i.e. simulation workbench is inverse
Hour hands are rotated in the deep fat Carriage of the lower nine kinds of carrying operating modes of 2r/min rotating speed.
Step D, carry out under different loads heavy hydrostatic support deep fat and carry numerical computations:
Step D1, open fluid calculation software, import grid model file by the Import in File
Jingyazhicheng. mesh, and carry out mesh quality inspection by Grid；
Step D2, carried out by Define solver Solver parameter arrange, use Three Dimensional Steady fluid flowing arrange；
Step D3, carried out material properties Materials setting by Define, mainly provide studied hydrostatic support working media
Viscosity and density parameter etc.；
Step D4, carry out Define-Boundary Conditions boundary condition set, provide entering under different loads respectively
Mouth speed, sets the rotary speed of hydrostatic support workbench, exit selection pressure outlet border；
Step D5, carry out monitor plane setting, using face3 and face2 as plane to be monitored, select quality stream Mass-
Flow parameter monitors, obtains quality flow curve；
Step D6, initialization flow field, be iterated calculating, and points out Flow Field Numerical Calculation convergence, obtain calculating after iteration 800 step number
Result.
Step E, carry out data result post processing, draw face3 and face2 under Fig. 2 to different loads shown in 19
Flow volume change values numerical simulation result curve, and contrast with the value of calculation of derivation formula, Figure 20 is correlation curve figure, logical
The heavy hydrostatic support deep fat crossing this invention of contrast verification carries the effectiveness of method of value solving.
Present embodiment effect:
By the numerical result analysis of the present invention, under 2r/min rotating speed, deep fat carry over factor K is along with load change
Formula value is consistent with analogue value Changing Pattern, when load is less than 60 ton hours, and deep fat carries the factor and reduces along with the increase of load,
When load occurs without deep fat Carriage more than 60 ton hours, hydrostatic support, and this conclusion drawn with theoretical formula method is consistent, tests
Demonstrate,prove the accuracy of method of value solving.The method can be generalized to, in the hydrostatic support structure of other seriation, instead of biography
The formulation process that system is complicated, saves the calculating cycle, improves computational efficiency, more can effectively predict and solve in engineering
The problems such as the heat effect of hydrostatic support.
Claims (2)
1. under a different loads, heavy hydrostatic support deep fat carries method of value solving, it is characterised in that by fluid Numerical-Mode
The method intended obtains the deep fat Carriage of heavy hydrostatic support, has shown that the deep fat under different rotating speeds carries factor values, has passed through
The analogue value and formula value of calculation contrast, the accuracy of checking method of value solving；
The method can be generalized in the hydrostatic support structure of other seriation, instead of the formulation process that tradition is complicated,
Saving the calculating cycle, computational efficiency can improve more than twice, more can effectively predict and solve the heat of hydrostatic support in engineering
The problems such as effect；
The present invention is to solve that hydrostatic support deep fat is carried the accuracy of problem solving by existing computational methods and efficiency is poor
Present situation, provides heavy hydrostatic support deep fat under a kind of different loads and carries method of value solving for this；
Under a kind of different loads, heavy hydrostatic support deep fat carries method of value solving and realizes according to the following steps:
Step A, creating the deep fat of the heavy single lubricating pad of hydrostatic support, to carry face as follows:
In order to deep fat Carriage can be given expression in numerical simulation more intuitively, with that is single lubricating pad in 1/24 in round guide
For object of study, being provided with cross section 3, named face3 on the single lubricating pad of oil film, this cross section is positioned on single lubricating pad right side
At sealing oil edge and oil-recovery tank delivery position；Lubricating pad is provided with the most again in sealing oil edge week cross section 2, named face2；
Step B, the deep fat utilizing early stage to be derived from carry computing formula, the heavy hydrostatic support structure ginseng that will the present invention relates to
Number and duty parameter substitute into, and list the calculated value of deep fat Carriage, including surface current value and the heat of face3 and face2
Oil carries the value of factor K；
Step C, determine heavy hydrostatic support numerical simulation condition:
According to the carrying situation in heavy hydrostatic support real work, respectively 0t, 20t, 40t, 60t, 80t, 100t, 120t,
Under 140t, 160t nine kinds carrying operating mode, single lubricating pad Fuel film model is carried out numerical simulation, it is contemplated that the calculated results analysis
The conclusion drawn, selects to carry deep fat phenomenon and has the rotating speed of turning influence and carry out numerical computations, i.e. simulation workbench is inverse
Hour hands are rotated in the deep fat Carriage of the lower nine kinds of carrying operating modes of 2r/min rotating speed；
Step D, carry out under different loads heavy hydrostatic support deep fat and carry numerical computations；
Step E, carry out data result post processing, draw the flow volume change values numerical simulation of face3 and face2 under different loads
Result curve, and contrast with the value of calculation of derivation formula, draw correlation curve figure, by heavy type of this invention of contrast verification
Hydrostatic support deep fat carries the effectiveness of method of value solving.
Under a kind of different loads the most according to claim 1, heavy hydrostatic support deep fat carries method of value solving, and it is special
Levy and be when load is less than 60 ton hours, and deep fat carries the factor and reduces along with the increase of load, when load is more than 60 ton hours, static pressure
Supporting and occur without deep fat Carriage, this conclusion calculated with formula is consistent, demonstrates the accuracy of method of value solving；
The method can be generalized in the hydrostatic support structure of other seriation, instead of the formulation process that tradition is complicated,
Save the calculating cycle, improve computational efficiency, more can effectively predict and solve the heat effect etc. of hydrostatic support in engineering and ask
Topic.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510773626 | 2015-11-16 | ||
| CN2015107736260 | 2015-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106021729A true CN106021729A (en) | 2016-10-12 |
Family
ID=57095478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610340438.3A Pending CN106021729A (en) | 2015-11-16 | 2016-05-23 | Method for solving hot oil carrying values of heavy hydrostatic bearing under different loads |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106021729A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050018161A1 (en) * | 2003-07-23 | 2005-01-27 | Canon Kabushiki Kaisha | Positioning method, and positioning apparatus |
| CN101424584A (en) * | 2008-11-17 | 2009-05-06 | 苏州试验仪器总厂 | Combination oil film static pressure bearing type horizontal sliding table |
| 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 |
-
2016
- 2016-05-23 CN CN201610340438.3A patent/CN106021729A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050018161A1 (en) * | 2003-07-23 | 2005-01-27 | Canon Kabushiki Kaisha | Positioning method, and positioning apparatus |
| CN101424584A (en) * | 2008-11-17 | 2009-05-06 | 苏州试验仪器总厂 | Combination oil film static pressure bearing type horizontal sliding table |
| 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 |
Non-Patent Citations (3)
| Title |
|---|
| 于永 主编: "《FLUENT入门与进阶教程》", 30 September 2008 * |
| 邵俊鹏，等: "重型静压轴承油腔结构优化与流场仿真", 《系统仿真学报》 * |
| 魏旭壕，等: "液体静压支承工作转台的数值模拟", 《中国力学学会学术大会》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ma et al. | An optimum design model for textured surface with elliptical-shape dimples under hydrodynamic lubrication | |
| Gao et al. | A multiphase computational study of oil distribution inside roller bearings with under-race lubrication | |
| CN103226633B (en) | A kind of static pressure oil pad flow field characteristic simulation optimization method | |
| Gao et al. | CFD study on stepped and drum balance labyrinth seal | |
| CN103226635A (en) | Computing method for unsteady flow field of rotary impeller machinery based on three-dimensional dynamic mesh | |
| Li et al. | Application of computational fluid dynamics and fluid structure interaction techniques for calculating the 3D transient flow of journal bearings coupled with rotor systems | |
| Dobrica et al. | Reynolds' model suitability in simulating Rayleigh step bearing thermohydrodynamic problems | |
| Shadab et al. | Effect of impeller shroud trimming on the hydraulic performance of centrifugal pumps with low and medium specific speeds | |
| Kan et al. | Study on a horizontal axial flow pump during runaway process with bidirectional operating conditions | |
| Azarpira et al. | A 3D analytical model for vortex velocity field based on spiral streamline pattern | |
| CN104331539B (en) | A kind of nuclear power station pipeline thermomixture effect fatigue evaluation method and system | |
| Prasad et al. | Prediction of gas turbine oil scoop capture efficiency | |
| Sun et al. | Numerical and experimental investigations on windage heating effect of labyrinth seals | |
| CN106021729A (en) | Method for solving hot oil carrying values of heavy hydrostatic bearing under different loads | |
| Kirk et al. | Influence of leak path friction on labyrinth seal inlet swirl | |
| Omar Hadj Aissa et al. | CFD modeling of multiphase flows in the gas turbine engines oil cavities | |
| Li et al. | Simulation and experimental investigation of a new type of combined seal structure | |
| Najar et al. | Performance characteristics in hydrodynamic water cooled thrust bearings | |
| Li et al. | Numerical Calculation Analysis and Characteristic Research on Windage Loss of Oil‐Jet Lubricated Aviation Gear Pair | |
| Cui et al. | Bubble Flow Analysis of High Speed Cylindrical Roller Bearing under Fluid‐Solid Thermal Coupling | |
| Sadeghi et al. | A Review of Computational Fluid Dynamics Approaches Used to Investigate Lubrication of Rolling Element Bearings | |
| Li et al. | Design and analysis of flow rectifier of gas turbine flowmeter | |
| Zhu et al. | Effect of inlet structures on the performance of oil supply system of a variable speed rotary compressor | |
| Tanamal | Modelling of fluid flow in multiple axial groove water lubricated bearings using computational fluid dynamics | |
| Wang et al. | Numerical investigation of cavitating flow in centrifugal pump with improved partially-averaged Navier–Stokes method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |