CN107844616A - Target element temperature acquisition methods and device, bearing life appraisal procedure and device - Google Patents
Target element temperature acquisition methods and device, bearing life appraisal procedure and device Download PDFInfo
- Publication number
- CN107844616A CN107844616A CN201610997698.8A CN201610997698A CN107844616A CN 107844616 A CN107844616 A CN 107844616A CN 201610997698 A CN201610997698 A CN 201610997698A CN 107844616 A CN107844616 A CN 107844616A
- Authority
- CN
- China
- Prior art keywords
- temperature
- bearing
- object component
- service system
- military service
- 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
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000002093 peripheral effect Effects 0.000 claims abstract description 57
- 238000005259 measurement Methods 0.000 claims abstract description 35
- 238000004458 analytical method Methods 0.000 claims abstract description 24
- 238000004088 simulation Methods 0.000 claims description 46
- 239000000314 lubricant Substances 0.000 claims description 8
- 241000682719 Adina Species 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 238000009472 formulation Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 description 7
- 230000005855 radiation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
Abstract
The online acquisition methods of target element temperature and device of a kind of object component military service system, bearing life appraisal procedure and device, the acquisition methods include：Simulate the temperature field of the object component military service system operationally；Analyzed based on the temperature field, to obtain the relation between the peripheral temperature of the object component and target element temperature, the peripheral temperature energy on-line measurement of the object component obtains；In the object component military service system operation, the target element temperature is obtained according to the peripheral temperature of the object component of actual measurement, and the relation.When this method is applied to bearing military service system, by carrying out sunykatuib analysis to the temperature field of bearing military service system operationally, the relation between the peripheral temperature of bearing and bearing temperature can be accurately obtained.When that need to obtain the bearing temperature for being difficult to direct measurement acquisition online, the peripheral temperature for the bearing that need to only obtain easy on-line measurement, which substitutes into above-mentioned relation, to be obtained.
Description
This application claims September in 2016 to submit Patent Office of the People's Republic of China, Application No. 201610833440.4, denomination of invention on 19th
For the priority of the Chinese patent application of " the online acquisition methods of target element temperature and device of object component military service system ", its
Full content is hereby incorporated by reference in the application.
Technical field
The present invention relates to technical field of bearings, exists more particularly to a kind of target element temperature of object component military service system
The online acquisition device of target element temperature, bearing life appraisal procedure and the axle of line acquisition methods, object component military service system
Hold life appraisal device.
Background technology
In the running of bearing military service system, the online bearing temperature for obtaining bearing military service system has important work
With.For example, the cooling of bearing can be controlled according to bearing temperature, so that bearing works under preferable lubricating status, so as to
Extend bearing service life.In addition, it may determine that whether bearing military service system breaks down according to bearing temperature.
Due to the architectural characteristic and working characteristics of bearing, it is difficult to online direct measurement bearing temperature, and bearing can only be measured
The surface temperature of place bearing block.But there is very big difference in the temperature of bearing block with bearing temperature, it is impossible to both are equivalent, because
This, needs badly and provides the bearing temperature that a kind of method to obtain bearing military service system online.
The content of the invention
The problem to be solved in the present invention is：Prior art can not accurately obtain the Bearing inner temperature of bearing military service system.
To be obtained online to solve the above problems, the invention provides a kind of target element temperature of object component military service system
Method, it includes：Simulate the temperature field of the object component military service system operationally；Divided based on the temperature field
Analysis, to obtain the relation between the peripheral temperature of the object component and target element temperature, the periphery temperature of the object component
Degree can on-line measurement acquisition；In the object component military service system operation, according to the week of the object component of actual measurement
Side temperature, and the relation obtain the target element temperature.
Alternatively, simulating the method in the temperature field of the object component military service system operationally includes：
The simulation model of the object component military service system is established using finite element method；
For the simulation model, boundary condition is set；
Apply load to the simulation model；
Finite Element Simulation Analysis is carried out, the temperature field of the object component military service system operationally is obtained with simulation.
Alternatively, analyzed based on the temperature field, included with obtaining the method for the relation：
Temperature field based on the object component military service system operationally obtains multi-group data, and data described in each group are based on
The temperature field at different moments obtains, and data described in every group include the peripheral temperature of the object component and corresponding target
Component temperature；
Data described in each group are carried out curve fitting, so as to obtain the relation.
Alternatively, the object component is simulated using ANSYS softwares, MARC softwares, ABAQUS softwares or ADINA softwares
The temperature field of military service system operationally.
Alternatively, the curve matching is carried out using Excel softwares, Matlab softwares or Origin softwares.
Alternatively, the peripheral temperature of the object component is the object component military service system local environment temperature, described
It is at least one in the temperature of the element adjacent with the object component in object component military service system.
Alternatively, the object component military service system is bearing military service system, and the object component is installed in bearing block
On bearing.
Alternatively, the peripheral temperature of the object component is surface temperature, the bearing military service system of the bearing block
It is at least one in local environment temperature.
Alternatively, the bearing military service system is railway axle box.
In addition, present invention also offers a kind of bearing life appraisal procedure, it includes：Using any of the above-described described online
Acquisition methods obtain bearing temperature；The ratio of viscosities of lubricant is obtained according to the bearing temperature, the ratio of viscosities is substituted into bearing
The general formula in life-span, obtain the life-span of the bearing.
Alternatively, the general formula is《The rolling bearing dynamic load ratings of ISO 281 and rated life time》The bearing of formulation
Life formula.
Furthermore present invention also offers a kind of online acquisition device of target element temperature of object component military service system, its
Including：Temperature field simulation module, for simulating the temperature field of the object component military service system operationally；Analysis module,
For being analyzed based on the temperature field, to obtain the pass between the peripheral temperature of the object component and target element temperature
System, the peripheral temperature energy on-line measurement of the object component obtain；Measurement module, for being transported in the object component military service system
During row, the peripheral temperature of the object component is obtained online；Computing module, for the object component according to actual measurement
Peripheral temperature, and the relation obtain the target element temperature.
Alternatively, the temperature field simulation module includes：
Modeling unit, for establishing the simulation model of the object component military service system using finite element method；
Analytic unit, for the simulation model progress finite element simulation to being provided with boundary condition, being applied with load
Analysis, the temperature field of the object component military service system operationally is obtained with simulation.
Alternatively, the analysis module includes：
Acquiring unit, multi-group data, each group are extracted for the temperature field from the object component military service system operationally
The data from temperature field extraction at different moments, the peripheral temperature of data described in every group including the object component and
Corresponding target element temperature；
Fitting unit, for being carried out curve fitting to data described in each group, so as to obtain the relation.
Alternatively, the peripheral temperature of the object component is the object component military service system local environment temperature, described
It is at least one in the temperature of the element adjacent with the object component in object component military service system.
Alternatively, the object component military service system is bearing military service system, and the object component is installed in bearing block
On bearing.
Alternatively, the peripheral temperature of the object component is surface temperature, the bearing military service system of the bearing block
It is at least one in local environment temperature.
Alternatively, the bearing military service system is railway axle box.
In addition, present invention also offers a kind of bearing life apparatus for evaluating, it includes：Any of the above-described described online acquisition
Device；Computing device, the ratio of viscosities of lubricant, and root are obtained for the bearing temperature according to acquired in the online acquisition device
According to the ratio of viscosities and the general formula of bearing life, the life-span of the bearing is calculated.
Compared with prior art, technical scheme has advantages below：
By carrying out sunykatuib analysis to the temperature field of object component military service system operationally, target can be accurately obtained
Relation between the peripheral temperature and target element temperature of element.When need to obtain online be difficult to direct measurement acquisition object component
During temperature, the peripheral temperature for the object component that need to only obtain easy on-line measurement, which substitutes into above-mentioned relation, to be obtained.Using to axle
When holding military service system, by carrying out sunykatuib analysis to the temperature field of bearing military service system operationally, axle can be accurately obtained
Relation between the peripheral temperature and bearing temperature held.When the bearing temperature for being difficult to direct measurement acquisition need to be obtained online, only
The peripheral temperature for the bearing that easy on-line measurement need to be obtained substitutes into above-mentioned relation and can obtained.
Brief description of the drawings
Fig. 1 is the online acquisition methods flow chart of bearing temperature of one embodiment of the present of invention middle (center) bearing military service system.
Embodiment
The invention provides a kind of online acquisition methods of target element temperature of object component military service system, this method bag
Include：Simulate the temperature field of object component military service system operationally；Analyzed based on the temperature field, to obtain the mesh
The relation between the peripheral temperature of element and target element temperature is marked, the peripheral temperature energy on-line measurement of the object component obtains
；In the object component military service system operation, according to the peripheral temperature of the object component of actual measurement, and it is described
Relation obtains the target element temperature.
This method can be obtained accurately by carrying out sunykatuib analysis to the temperature field of object component military service system operationally
Obtain the relation between the peripheral temperature of object component and target element temperature in object component military service system.When difficulty need to be obtained online
During the target element temperature obtained with direct measurement, the peripheral temperature of object component that need to only obtain easy on-line measurement substitutes into
The relation of stating can obtain.Preferably, the peripheral temperature of the object component is close to object component in object component military service system
The temperature of position, and the temperature can direct measurement obtain, such as by sensor come measure acquisition.
Further, the peripheral temperature of the object component be the object component military service system local environment temperature (i.e.
For atmospheric temperature), it is at least one in the temperature of element adjacent with the object component in the object component military service system.
Certainly, the peripheral temperature of object component is can be the temperature of more than three positions.When corresponding to the peripheral temperature of object component
Position closer to object component when, by this method obtain target element temperature it is more accurate.
The object component military service system of the present invention comprises at least two elements, and it is also wrapped in addition to including object component
Include other elements.So-called object component military service system operation refers at least one member motion in military service system.
Below to the technology of the present invention so that object component military service system is bearing military service system, object component is bearing as an example
Scheme is described in detail.The bearing military service system can be any device for having used bearing.In the present embodiment, the bearing
By taking the axle box of railway as an example, the axle box includes rotating shaft, the bearing being set in rotating shaft and for installing bearing military service system
Bearing block.The online acquisition methods of the bearing temperature of the present embodiment are described in detail with reference to Fig. 1.
First, step P1 is performed, simulates the temperature field of bearing military service system operationally, is carried out based on the temperature field
Analysis, to obtain the relation between the peripheral temperature of bearing and bearing temperature.
Limited by measuring condition and method, the temperature field of bearing military service system operationally is difficult that direct measurement obtains.
And the simulation in temperature field is not limited then by measuring condition, as long as being carried out to bearing military service system and its thermaltransmission mode, operating mode
Reduction, you can simulate the temperature field of bearing military service system operationally exactly.In the present invention, so-called bearing military service system
Operation is that the rotating shaft that bearing is arranged has rotation, and now bearing also has operation.
According to operating mode, the difference of run time, the temperature field of bearing military service system operationally may be different.In step
In P1, temperature field of the bearing military service system in the case where arbitrarily determining operating mode, operation random time can be simulated, may thereby determine that
Go out in the bearing military service system under arbitrarily determining operating mode, operation random time, between the peripheral temperature and bearing temperature of bearing
Relation.
When being reduced to the thermaltransmission mode of bearing military service system, it may be noted that the mode of heat transfer has three kinds, it is respectively
Heat transfer, thermal convection current and heat radiation.Wherein, heat transfer is due to temperature between two contact objects or the different piece of an object
Interior energy caused by gradient is spent to exchange.Thermal convection current refers between the fluid that the surface of solid contacts with around it due to the difference of temperature
Heat exchange caused by different.Heat radiation refers to object emission electromagnetic energy and the heat exchange mistake for being changed into heat is absorbed by other objects
Journey, the influence specific to heat radiation in bearing military service system is very small, can be ignored.Source can determine by step P1
In environment temperature bearing military service system it is determined that temperature distributing rule under operating mode.
In the present embodiment, the axle is simulated using ANSYS softwares, MARC softwares, ABAQUS softwares or ADINA softwares
Hold the temperature field of military service system operationally.First below to simulating the bearing military service system in the present embodiment operationally
The method in temperature field be described in detail.
First, step P10 is performed, the simulation model of the bearing military service system is established using finite element method.
The simulation model is substantially identical with the bearing military service system of reality, and its emulation number of parts included is on active service with bearing
The number of parts of system is identical, and each emulation part simulates corresponding part in bearing military service system, and both are in material, shape
On shape, size and thermo-physical performance parameters (such as density, pyroconductivity, specific heat capacity, Poisson's ratio, modulus of elasticity, the coefficient of expansion)
It is identical.It should be noted that it is both so-called identical in shape, it can refer to that both are identical in general shape, not influence temperature
On the premise of spending field stimulation accuracy, emulation part can be the appropriate simplification that part is corresponded in bearing military service system.For example, axle
The outer ring for holding military service system middle (center) bearing is provided with chamfering, and the emulation part of corresponding outer ring can be without the chamfering.
When establishing the simulation model of bearing military service system using finite element method, the geometry of bearing military service system is first established
Model, then mesh generation is carried out to geometrical model, geometrical model is divided into some cellular constructions.In the present embodiment, directly
Connect the simulation model that bearing military service system is established using ANSYS softwares, MARC softwares, ABAQUS softwares or ADINA softwares.At it
In its embodiment, the geometry mould of bearing military service system can also be first established in three-dimensional software (such as ProE, Solidworks)
Type, then the geometrical model is imported in ANSYS softwares, MARC softwares, ABAQUS softwares or ADINA softwares, to generate the emulation
Model.
Specifically, the simulation model of bearing military service system includes the emulation bearing block of simulation bearing block and simulates the bearing
Emulation bearing.Certainly, the simulation model can also also include being used for simulating in bearing military service system in addition to bearing block, bearing
Part emulation part, such as the emulation part of rotating shaft, will not enumerate in the present embodiment.
Then, step P11 is performed, boundary condition is set for the simulation model.
The boundary condition of the present invention refers to the boundary condition in thermal conduction study meaning, and which specify heat conduction in bearing military service system
Temperature or heat exchange situation on object boundary.Specifically, the boundary condition includes three classes, wherein, First Boundary Condition provides
Body surface temperature changes with time relation, and second kind boundary condition is given by the heattransfer rate of body surface with the change of time
Change relation, third boundary condition provide object ambient temperature (i.e. environment temperature) and body surface and surrounding medium
Heat exchange factor.
In the present embodiment, the boundary condition includes convection transfer rate, and the environment temperature residing for bearing military service system
Degree, the environment temperature is room temperature.
Then, step P12 is performed, applies load to the simulation model.
The load of the present invention refers to thermal force, and in the present embodiment, the thermal force is heat caused by bearing self friction
Amount, it mostlys come from, friction, lubricant viscous friction between rolling element and inside and outside raceway etc..According to bearing type not
Together, the heat is it is also possible to come from the sliding friction between rolling element and retainer pocket hole.
Finally, step P13 is performed, carries out Finite Element Simulation Analysis, with simulation acquisition bearing military service system operationally
Temperature field.
The temperature of all parts in simulation model, and the same part are shown in the temperature field of simulation model in difference
The temperature at position, the temperature field manifestation mode of the simulation model obtained after finite element analysis have three kinds, respectively cloud atlas, vector
Figure or list, the temperature at each position of simulation model can be directly extracted from the temperature field.
Then analyzed below after the temperature field to obtaining simulation model in the present embodiment, to obtain the relation
Method is described in detail.
First, step P14 is performed, the temperature field based on bearing military service system operationally obtains multi-group data, each group institute
State data to obtain based on the temperature field at different moments, data described in every group include the peripheral temperature of bearing and corresponding axle
Hold temperature.
Then, step P15 is performed, data described in each group are carried out curve fitting, so as to obtain the relation.
The rule of inherence can be found out from all discrete data by curve matching, and is showed with functional equation
Relation between the peripheral temperature and bearing temperature of bearing.
In the present embodiment, the curve matching is carried out using Excel softwares, Matlab softwares or Origin softwares.
After obtaining the relation between the peripheral temperature of bearing and bearing temperature, step P2 is performed, is on active service in the bearing
In system operation, the bearing temperature is obtained according to the peripheral temperature of the bearing of actual measurement, and the relation.
The peripheral temperature of bearing can be obtained using sensor come direct measurement.Preferably, the peripheral temperature of bearing is axle
Hold in military service system close to the temperature of the position of bearing.In the present embodiment, the peripheral temperature of bearing is the table of the bearing block
Face temperature and the bearing military service system local environment temperature.By the bearing block surface mount foil gauge to obtain
The surface temperature of bearing block is stated, environment temperature can be obtained directly with thermometer to measure.In an alternative of the present embodiment,
The peripheral temperature of bearing can also be one in the surface temperature of the bearing block, the bearing military service system local environment temperature
It is individual.In another alternative of the present embodiment, the peripheral temperature of bearing can also be the temperature of more than three positions, and it is except bag
Include outside the surface temperature of the bearing block, the bearing military service system local environment temperature, bearing can also be included and be on active service system
The temperature of other elements in system, the temperature energy on-line measurement of other elements obtain.When bearing is not installed on bearing block, axle
The peripheral temperature held can include bearing military service system near bearing element temperature.
Accordingly, in the data extracted in step P14, bearing temperature can be any one part in emulation bearing
Any one position temperature, for example, it may be the temperature of outer ring and the rolling element contact site of emulation bearing or
Emulate the inner ring of bearing and the temperature of rolling element contact site.
As the above analysis, in the solution of the present invention, by being carried out to the temperature field of bearing military service system operationally
Sunykatuib analysis, it can accurately obtain the relation between the peripheral temperature of bearing and bearing temperature.It is difficult to directly when that need to obtain online
When connecing the bearing temperature that measurement obtains, the peripheral temperature for the bearing that need to only obtain easy on-line measurement, which substitutes into above-mentioned relation, to be obtained
.
It should be noted that in the inventive solutions, the type of object component military service system and object component is not
Given embodiment should be confined to, object component military service system can be the device of any kind, and object component can be target element
Any one element in part military service device, the temperature of the element are not easy direct measurement acquisition.When object component military service system and
When the type of object component changes, can under teaching to embodiment to make phase to the technical scheme of embodiment
To obtain target element temperature, the bearing military service system replacement that will give each step in embodiment is other for the adjustment of adaptation
The object component military service system of type, bearing replace with other types of object component, you can obtain other types of target element
Part temperature.
The present embodiment also provides a kind of bearing life appraisal procedure, and the appraisal procedure can be used for the tired longevity for assessing bearing
Life, this method include：Bearing temperature is obtained using the above method；The ratio of viscosities of lubricant is obtained according to the bearing temperature, will
The ratio of viscosities substitutes into the general formula of bearing life, obtains the life-span of the bearing.The general formula is general in industry
Formula for the calculation bearing life-span.In the present embodiment, general formula is《Rolling bearing dynamic load ratings of ISO 281 and specified
Life-span》The general formula of the bearing life of formulation, the general formula are：
Lnm=a1aISO(C/P)ε
Wherein, LnmFor the fatigue life of bearing, a1For reliability life adjustment factor, C is dynamic load rating, and P is equivalent
Dynamic loading, ε are the index determined according to the type of the rolling element of bearing.aISOFor based on lubrication, environment, contaminant particle and
The life adjustment factor of the factors such as installation, aISO=f (eccu/ P, k), ecFor contamination factor, cuFor the fatigue load limit, k is axle
Hold the ratio of viscosities of used lubricant, k is equal to practical viscosity/refer to viscosity.The rotating speed and bearing with reference to viscosity by bearing
Size determine that specific determination method may be referred to standard ISO281-2007.The practical viscosity is according to the viscous Wen Te of lubricant
Linearity curve and the bearing temperature that is measured using the above method are determined.Because k of this programme in general formula is according to bearing
Real time temperature obtain, thus calculated using above-mentioned general formula obtained be bearing the real-time life-span, accuracy is high.
It should be noted that in the inventive solutions, above-mentioned general formula can also be advised using other iso standards
Fixed bearing life calculation formula.
In addition, present invention also offers a kind of online acquisition device of target element temperature of object component military service system, its
Including temperature field simulation module, analysis module, measurement module and computing module.Wherein, the temperature field simulation module is used for mould
Draw up the temperature field of the object component military service system operationally.The analysis module is used to be divided based on the temperature field
Analysis, to obtain the relation between the peripheral temperature of the object component and target element temperature, the periphery temperature of the object component
Degree can on-line measurement acquisition.The measurement module is used in the object component military service system operation, obtains institute online
State the peripheral temperature of object component.The computing module is used for the peripheral temperature of the object component according to actual measurement, Yi Jisuo
State relation and obtain the target element temperature.
In the present embodiment, the temperature field simulation module includes modeling unit and analytic unit.Wherein, the modeling is single
Member is used for the simulation model that the object component military service system is established using finite element method, and the analytic unit is used for setting
There is boundary condition, be applied with the simulation model progress Finite Element Simulation Analysis of load, the object component is obtained with simulation
The temperature field of military service system operationally.
In the present embodiment, the analysis module includes acquiring unit and fitting unit.Wherein, the acquiring unit, use
In extracting multi-group data from object component military service system temperature field operationally, data described in each group are from different moments
The temperature field extraction, data described in every group include the peripheral temperature of the object component and corresponding target element temperature.
The fitting unit is used to carry out curve fitting to data described in each group, so as to obtain the relation.
In the present embodiment, the peripheral temperature of the object component is the object component military service system local environment temperature
It is at least one in the temperature of the element adjacent with the object component in degree, the object component military service system.
In the present embodiment, the object component military service system is bearing military service system, the object component be installed in
Bearing on bearing block.
In the present embodiment, the peripheral temperature of the object component is the surface temperature of the bearing block, bearing clothes
It is at least one in labour system local environment temperature.
In the present embodiment, the bearing military service system is railway axle box.
In addition, present invention also offers a kind of bearing life apparatus for evaluating, it includes above-mentioned bearing temperature and obtains dress online
Put and computing device.Wherein, the bearing temperature that the computing device is used for according to acquired in the online acquisition device is moistened
The ratio of viscosities of lubrication prescription, and according to the ratio of viscosities and the general formula of bearing life, calculate the life-span of the bearing.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, this is not being departed from
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (19)
- A kind of 1. online acquisition methods of target element temperature of object component military service system, it is characterised in that including：Simulate the temperature field of the object component military service system operationally；Analyzed based on the temperature field, to obtain the pass between the peripheral temperature of the object component and target element temperature System, the peripheral temperature energy on-line measurement of the object component obtain；In the object component military service system operation, according to the peripheral temperature of the object component of actual measurement, Yi Jisuo State relation and obtain the target element temperature.
- 2. the online acquisition methods of target element temperature as claimed in claim 1, it is characterised in that simulate the object component The method in the temperature field of military service system operationally includes：The simulation model of the object component military service system is established using finite element method；For the simulation model, boundary condition is set；Apply load to the simulation model；Finite Element Simulation Analysis is carried out, the temperature field of the object component military service system operationally is obtained with simulation.
- 3. the online acquisition methods of target element temperature as claimed in claim 1, it is characterised in that carried out based on the temperature field Analysis, is included with obtaining the method for the relation：Temperature field based on the object component military service system operationally obtains multi-group data, and data described in each group are based on difference The temperature field at moment obtains, and data described in every group include the peripheral temperature of the object component and corresponding object component Temperature；Data described in each group are carried out curve fitting, so as to obtain the relation.
- 4. the online acquisition methods of target element temperature as claimed in claim 2, it is characterised in that utilize ANSYS softwares, MARC Software, ABAQUS softwares or ADINA softwares simulate the temperature field of the object component military service system operationally.
- 5. the online acquisition methods of target element temperature as claimed in claim 3, it is characterised in that using Excel softwares, Matlab softwares or Origin softwares carry out the curve matching.
- 6. the online acquisition methods of target element temperature as claimed in claim 1, it is characterised in that the periphery of the object component Temperature is the object component military service system local environment temperature, in the object component military service system with the object component phase It is at least one in the temperature of adjacent element.
- 7. the online acquisition methods of target element temperature as described in any one of claim 1 to 6, it is characterised in that the target Element military service system is bearing military service system, and the object component is the bearing on bearing block.
- 8. the online acquisition methods of target element temperature as claimed in claim 7, it is characterised in that the periphery of the object component Temperature is at least one in the surface temperature of the bearing block, the bearing military service system local environment temperature.
- 9. the online acquisition methods of target element temperature as claimed in claim 7, it is characterised in that the bearing military service system is Railway axle box.
- A kind of 10. bearing life appraisal procedure, it is characterised in that including：Bearing temperature is obtained using the online acquisition methods described in any one of claim 7 to 9；The ratio of viscosities of lubricant is obtained according to the bearing temperature, the ratio of viscosities is substituted into the general formula of bearing life, obtained Obtain the life-span of the bearing.
- 11. bearing life appraisal procedure as claimed in claim 10, it is characterised in that the general formula is《ISO 281 is rolled Dynamic bearing dynamic load ratings and rated life time》The bearing life calculation formula of formulation.
- A kind of 12. online acquisition device of target element temperature of object component military service system, it is characterised in that including：Temperature field simulation module, for simulating the temperature field of the object component military service system operationally；Analysis module, for being analyzed based on the temperature field, to obtain the peripheral temperature of the object component and target element Relation between part temperature, the peripheral temperature energy on-line measurement of the object component obtain；Measurement module, in the object component military service system operation, obtaining the periphery of the object component online Temperature；Computing module, the target element is obtained for the peripheral temperature of the object component according to actual measurement, and the relation Part temperature.
- 13. the online acquisition device of target element temperature as claimed in claim 12, it is characterised in that the temperature field simulation mould Block includes：Modeling unit, for establishing the simulation model of the object component military service system using finite element method；Analytic unit, for be provided with boundary condition, be applied with load the simulation model carry out Finite Element Simulation Analysis, The temperature field of the object component military service system operationally is obtained with simulation.
- 14. the online acquisition device of target element temperature as claimed in claim 12, it is characterised in that the analysis module bag Include：Acquiring unit, for extracting multi-group data from object component military service system temperature field operationally, described in each group Data are from temperature field extraction at different moments, the peripheral temperature of data described in every group including the object component and correspondingly Target element temperature；Fitting unit, for being carried out curve fitting to data described in each group, so as to obtain the relation.
- 15. the online acquisition device of target element temperature as claimed in claim 12, it is characterised in that the week of the object component Side temperature is the object component military service system local environment temperature, in the object component military service system with the object component It is at least one in the temperature of adjacent element.
- 16. the online acquisition device of target element temperature as described in any one of claim 12 to 15, it is characterised in that the mesh Mark element military service system is bearing military service system, and the object component is the bearing on bearing block.
- 17. the online acquisition device of target element temperature as claimed in claim 16, it is characterised in that the week of the object component Side temperature is at least one in the surface temperature of the bearing block, the bearing military service system local environment temperature.
- 18. the online acquisition device of target element temperature as claimed in claim 16, it is characterised in that the bearing military service system For railway axle box.
- A kind of 19. bearing life apparatus for evaluating, it is characterised in that including：Online acquisition device described in any one of claim 16 to 18；Computing device, the ratio of viscosities of lubricant, and root are obtained for the bearing temperature according to acquired in the online acquisition device According to the ratio of viscosities and the general formula of bearing life, the life-span of the bearing is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/100859 WO2018050015A1 (en) | 2016-09-19 | 2017-09-07 | Temperature acquisition method and apparatus for target element, and method and apparatus for evaluating lifetime of bearing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016108334404 | 2016-09-19 | ||
| CN201610833440 | 2016-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107844616A true CN107844616A (en) | 2018-03-27 |
Family
ID=61661015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610997698.8A Pending CN107844616A (en) | 2016-09-19 | 2016-11-11 | Target element temperature acquisition methods and device, bearing life appraisal procedure and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107844616A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237658A (en) * | 2021-04-21 | 2021-08-10 | 浙江工业大学 | Temperature fault monitoring and early warning method for stage motor bearing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825501A (en) * | 2010-05-13 | 2010-09-08 | 哈尔滨工业大学 | Method for measuring power connector contact temperature rise based on finite element analysis of three-dimensional thermal field |
| CN102574534A (en) * | 2009-09-09 | 2012-07-11 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Method for predicting the temperature of a wheel bearing of a wheel of a vehicle |
| CN105899945A (en) * | 2013-12-17 | 2016-08-24 | 斯凯孚公司 | Viscosity estimation from demodulated acoustic emission |
-
2016
- 2016-11-11 CN CN201610997698.8A patent/CN107844616A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102574534A (en) * | 2009-09-09 | 2012-07-11 | 克诺尔-布里姆斯轨道车辆系统有限公司 | Method for predicting the temperature of a wheel bearing of a wheel of a vehicle |
| CN101825501A (en) * | 2010-05-13 | 2010-09-08 | 哈尔滨工业大学 | Method for measuring power connector contact temperature rise based on finite element analysis of three-dimensional thermal field |
| CN105899945A (en) * | 2013-12-17 | 2016-08-24 | 斯凯孚公司 | Viscosity estimation from demodulated acoustic emission |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237658A (en) * | 2021-04-21 | 2021-08-10 | 浙江工业大学 | Temperature fault monitoring and early warning method for stage motor bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018050015A1 (en) | Temperature acquisition method and apparatus for target element, and method and apparatus for evaluating lifetime of bearing | |
| Adamowicz et al. | Analysis of disc brake temperature distribution during single braking under non-axisymmetric load | |
| CN104573172B (en) | The fatigue analysis method and analysis of fatigue device of structural member in wind power generating set | |
| Pouly et al. | Investigations on the power losses and thermal behaviour of rolling element bearings | |
| CN104899351B (en) | Bitumen mixture specimen temperature field analysis method based on discrete element simulation | |
| CN106933719A (en) | Frame air-flow monitoring system and method | |
| CN111339700B (en) | Method and device for evaluating fatigue damage of nuclear turbine blade and storage medium | |
| CN112257303A (en) | Thermal simulation model-based temperature stability time testing method | |
| CN113076614B (en) | Method for calculating service life of needle bearing retainer by combining bearing dynamics and FEM | |
| LaCava et al. | Three‐dimensional bearing load share behaviour in the planetary stage of a wind turbine gearbox | |
| Russell et al. | The effects of lubricant starvation on ball bearing cage pocket friction | |
| Liu et al. | Load distribution calculation of a four-point-contact slewing bearing and its experimental verification | |
| CN107843428A (en) | The online acquisition methods of bearing load and device, bearing life appraisal procedure and device | |
| Jiang et al. | Thermal error prediction and reliability sensitivity analysis of motorized spindle based on Kriging model | |
| CN107844616A (en) | Target element temperature acquisition methods and device, bearing life appraisal procedure and device | |
| Fair et al. | Simulating the sensitivity of underground ventilation networks to fluctuating ambient conditions | |
| CN105868446A (en) | Cross-scale simulation method for thermal-state characteristic of key part of high-speed stamping device | |
| CN106339521A (en) | Detection method of solder joint void defects based on laser pulse excitation simulation | |
| CN207487969U (en) | A kind of testing large rotating machinery bearing shell performance and the multi-function test stand in service life | |
| CN102708233A (en) | Reliability implementing capability assessment method applicable to surface mounting process | |
| Kruse et al. | CFD simulations and evaluation of applicability of a wall roughness model applied on a NACA 63 3‐418 airfoil | |
| Liu et al. | Thermal simulation speculation-based active coolant control onto spindle bearings | |
| CN107390668A (en) | Determine that antiskid brake control device adds the method for tight reliability test sectional plane | |
| Brown et al. | Development of Mainshaft High Speed Cylindrical Roller Bearings for Gas Turbine Engines | |
| Mahammad et al. | CFD and CAE approach for brake rotor thermal analysis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for 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: 20180327 |