CN109583101A - A kind of rail fastener detection method and device - Google Patents
A kind of rail fastener detection method and device Download PDFInfo
- Publication number
- CN109583101A CN109583101A CN201811474470.6A CN201811474470A CN109583101A CN 109583101 A CN109583101 A CN 109583101A CN 201811474470 A CN201811474470 A CN 201811474470A CN 109583101 A CN109583101 A CN 109583101A
- Authority
- CN
- China
- Prior art keywords
- analysis
- spring
- data
- rail
- finite element
- 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]
- G06F30/20—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
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention provides a kind of rail fastener detection method and device, including, the three-dimensional non-linear finite element model of each component composition in fastener system is obtained, fastener system includes spring；Static analysis is carried out to three-dimensional non-linear finite element model and obtains analysis data；Model analysis is carried out to three-dimensional non-linear finite element model according to analysis data, obtains each first order mode of spring and the corresponding intrinsic frequency of every first order mode；Available rail corrugation data on basis herein；It is analyzed to obtain wheel track excited frequency according to rail corrugation data；Whether resonated according to intrinsic frequency and wheel track excited frequency analysis spring.The present invention has fully considered influence of each component of fastener system to spring intrinsic frequency, establishes the former ratio three-dimensional non-linear finite element model of fastener system.On-line analysis is carried out to it, obtains intrinsic frequency of the fastener system under various states, it is compared with actually detected obtained wheel track excited frequency and judges whether fastener system generates resonance.
Description
Technical field
The present invention relates to rail technical field of safety protection, in particular to a kind of rail fastener detection method and dress
It sets.
Background technique
With the growth of the service times such as subway, high-speed rail, Short Wavelength Corrugation of Rail Surface problem will be outstanding day by day, especially in smaller part
On diametal curve route.Short Wavelength Corrugation of Rail Surface easily aggravates high-frequency vibration response and its radiated noise of wheel rail system, can also when serious
Cause fastening elastic rod fracture, the problems such as hitting vehicle window of splashing, certain threat is constituted to traffic safety.Existing frequency identification side
Method analyzes entire fastener system as spring-damping element, but this method still has and detects incomplete ask
Topic, in the prevention of safety accident or in place of in the presence of careless omission.
Summary of the invention
In order to overcome the deficiencies in the prior art described above, the present invention provides a kind of rail fastener detection method and device, with
It solves the above problems.
To achieve the goals above, technical solution provided by the embodiment of the present invention is as follows:
The embodiment of the present invention provides a kind of rail fastener detection method, comprising: obtains each component composition in fastener system
Three-dimensional non-linear finite element model, the fastener system include spring；Static(al) is carried out to the three-dimensional non-linear finite element model
Analysis obtains analysis data；Model analysis is carried out to the three-dimensional non-linear finite element model according to the analysis data, is obtained
Each first order mode of spring and the corresponding intrinsic frequency of every first order mode.
Optionally, the method also includes: obtain rail corrugation data；It is analyzed and is taken turns according to the rail corrugation data
Rail excited frequency；Analyze whether the spring resonates according to the intrinsic frequency and the wheel track excited frequency.
It is optionally, described to obtain in fastener system before the three-dimensional non-linear finite element model of each component composition, further includes:
Corresponding former ratio three-dimensional entity model, the geometric attribute packet are established according to the geometric attribute of component each in the fastener system
Include sectional area, the moment of inertia, section factor；The three-dimensional under the fastener system assembled state is established according to the three-dimensional entity model
Nonlinear finite element model.
It is optionally, described that the step of static analysis obtains analysis data is carried out to the three-dimensional non-linear finite element model,
It include: the first analysis parameter for obtaining the physical attribute of each component and static analysis in the three-dimensional non-linear finite element model,
The physical attribute includes the elasticity modulus of each component, Poisson's ratio, density of material in fastener system, the first analysis parameter packet
Include load, deformation type, the module analysis type, constrained type of static analysis；According to the physical attribute and first point described
The delta data of spring described in three-dimensional non-linear finite element model described in Parameter analysis is analysed, the delta data includes the bullet
The change in displacement data and stress variation data of item.
It is optionally, described that static analysis acquisition analysis data are carried out to the three-dimensional non-linear finite element model, further includes:
The displacement diagram and stress diagram of the spring are obtained according to the delta data.
Optionally, described to obtain the physical attribute of each component and static analysis in the three-dimensional non-linear finite element model
Before the step of first analysis parameter, further includes: obtain the interaction relationship of each component in the fastener system；According to described
Interaction relationship configures the contact relation between each component of the fastener system.
Optionally, described that model analysis is carried out to the three-dimensional non-linear finite element model according to the analysis data, it obtains
The step of to each first order mode of the spring and every first order mode corresponding intrinsic frequency, comprising: obtained according to the static analysis
The analysis data multiple load step is set；According to each first order mode of load step progress model analysis acquisition spring and respectively
The corresponding intrinsic frequency of first order mode；The load step includes load value and the time value for executing the load step.
Optionally, described to analyze the step of obtaining the wheel track excited frequency according to the rail corrugation data, comprising: right
The rail corrugation data are analyzed to obtain the dominant wavelength ranges of rail corrugation；It is analyzed to obtain institute according to the dominant wavelength ranges
State the range of wheel track excited frequency caused by rail corrugation.
Optionally, it is described according to the dominant wavelength ranges calculate rail corrugation caused by wheel track excited frequency range
Step is accomplished by the following way:
Wherein λ represents rail corrugation dominant wavelength, and ν represents vehicle actual motion speed, and f represents wheel track excited frequency.
Second aspect, the present invention provide a kind of rail fastener detection device, comprising:
Module is obtained, for obtaining the three-dimensional non-linear finite element model of each component composition in fastener system, fastener system
Including spring；The module that obtains is also used to obtain the physical attribute of each component of fastener system, the first analysis ginseng of static analysis
Several and model analysis the second analysis parameters.
Analysis module obtains analysis data, and root for carrying out static analysis to the three-dimensional non-linear finite element model
According to the analysis data to the three-dimensional non-linear finite element model carry out model analysis, obtain the spring each first order mode and
The corresponding intrinsic frequency of every first order mode.
The rail fastener detection device further include:
Detection module, for obtaining rail corrugation data, the analysis module is also used to according to the rail corrugation data
Analysis obtains wheel track excited frequency.
Judgment module, for analyzing whether the spring occurs altogether according to the intrinsic frequency and the wheel track excited frequency
Vibration.
Rail fastener detection method and device provided by the invention, firstly, by the three-dimensional of all parts in fastener system
Physical model is assembled into three-dimensional non-linear finite element model.Secondly, the static analysis that contacting piece system carries out under assembled state obtains
Data must be analyzed.Again, model analysis is carried out to obtain to the spring in three-dimensional non-linear finite element model according to analysis data
Each first order mode and the corresponding intrinsic frequency of each first order mode of spring.Herein on basis, the available rail corrugation detected
Data analyze it to obtain wheel track excited frequency.Finally, analyzing spring according to intrinsic frequency and wheel track excited frequency is
It is no to resonate.The present invention fully considers influence of the other component to spring in entire fastener system, to the button under assembled state
The three-dimensional non-linear finite element model of part system carries out static analysis, then using three-dimensional non-linear finite element model to practical clothes
Fastening elastic rod under labour state carries out model analysis, obtains intrinsic frequency of the spring under practical service state, then with rail wave
The wheel track excited frequency that mill data are analyzed is compared, to judge whether rail corrugation can cause the resonance of spring.
The present invention can also obtain the intrinsic frequency of spring under various states by model analysis, and detection process is quick, accurate, judge to tie
Fruit also more meets practical situations.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, the embodiment of the present invention is cited below particularly, and match
Appended attached drawing is closed, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 a is rail fastener detection method flow diagram I provided in an embodiment of the present invention；
Fig. 1 b is rail fastener detection method flow diagram II provided in an embodiment of the present invention；
Fig. 2 is three-dimensional non-linear finite element model analysis specific flow chart provided in an embodiment of the present invention；
Fig. 3 is rail fastener structure of the detecting device block diagram provided in an embodiment of the present invention；
Fig. 4 is electronic devices structure schematic diagram provided in an embodiment of the present invention.
Icon: 100- rail fastener detection device；110- obtains module；120- analysis module；130- detection module；140-
Judgment module；200- electronic equipment；210- memory；220- storage control；230- processor；240- Peripheral Interface；250-
Display；260- input keyboard；270- vibrating sensor.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In addition, involved by the present invention
And term " first ", " second " etc. be only used for distinguishing description, be not understood to indicate or imply relative importance.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
Through inventor the study found that existing fastener system resonance frequency test method is by fastener system as a bullet
Spring damping unit is analyzed, and is only individually detected spring when test, is not accounted for each component pair in fastener system
The influence of spring, so that testing result is not inconsistent with actual installation situation.When being detected existing detection method every time also only
A kind of intrinsic frequency of the spring under state can be detected, detection is also more troublesome.The present invention to solve the above-mentioned problems, use with
Lower embodiment is illustrated.
Fig. 1 a, Fig. 1 b and Fig. 2 are please referred to, Fig. 1 a is that rail fastener detection method process provided in an embodiment of the present invention is shown
It is intended to I；Fig. 1 b is rail fastener detection method flow diagram II provided in an embodiment of the present invention；Fig. 2 embodiment of the present invention mentions
The three-dimensional non-linear finite element model analysis specific flow chart of confession.The embodiment of the present invention obtains spring reality using following steps
Each first order mode and the corresponding intrinsic frequency of each first order mode, particular content under service state is as described below.
Step S101 obtains the three-dimensional non-linear finite element model of each component composition in fastener system.
General rail fastener system includes the components such as rail, spring, gauge block, elastic rubber pad, iron chair.The present invention
In the embodiment of offer, in order to which the detection of the spring frequency under contacting piece system practical set state may be implemented, need one
Analyzed on a model to tally with the actual situation, this just need to obtain one by each component of fastener system form three-dimensional it is non-thread
Property finite element model is analyzed.Corresponding former ratio can be established according to the actual geometric attribute of each component when establishing model
Example three-dimensional entity model, further according to the actual assembled mode of fastener system, that three-dimensional entity model is assembled into three dimensional non-linear is limited
Meta-model is analyzed in finite element analysis software so as to subsequent.
Specifically, CAD (Computer Aided Design, abbreviation can be used when establishing model
CAD) software carries out the foundation of each component three-dimensional entity model.It is, for example, possible to use Ou Teke CADs
(Autodesk Computer Aided Design, abbreviation AutoCAD) software or unified PaintShop
(Unigraphics, UG) establishes the physical model of rail according to the actual cross-section attribute of rail；According to the practical line style of spring and
Section attribute establishes the physical model of spring；It is established according to the actual cross-section attribute of gauge block, elastomeric pad, iron chair respective
Corresponding physical model.
More specifically, when establishing three-dimensional entity model, rail, gauge block, elastomeric pad, iron chair etc. can bases
The parameters such as its sectional area, the moment of inertia, section factor first establish section, finally stretch section and obtain corresponding physical model.Wherein,
Rail length takes half across fastener spacing, can be configured according to the actual type of fastener system；With DT type III fastener system
For, rail length takes half across fastener spacing 0.3m.Spring can establish space curve simultaneously according to key point each in spring line style
Rotation obtains the physical model of spring.After model foundation, part irregular in model can also be refined
Processing, so that model meets virtual condition.
It, can be by each component according to its assembling mode after the three-dimensional entity model of each component is established in fastener system
The three-dimensional non-linear finite element model being assembled under fastener system assembled state, then the model is imported in finite element analysis software
Subsequent analysis is carried out, to obtain the components such as rail in entire fastener system, gauge block, elastomeric pad, iron chair to spring
Impact the practical intrinsic frequency of rear spring.Finite element analysis software can be ANSYS software, ABAQUS software etc..Having
Finite element analysis software can be imported by user by storage equipment when obtaining the three-dimensional non-linear finite element model of fastener system,
It can directly read, can also be called by network apparatus remote inside system.
Make the actual conditions for being more in line with each component when detection by using above-mentioned three-dimensional non-linear finite element model, makes
The result of detection is more accurate.
It should be noted that when establishing the three-dimensional non-linear finite element model of fastener system, it is not limited to use
AutoCAD software or UG software carry out the foundation of three-dimensional entity model, and secondary development software also can be used
(solidworks) etc. 3 d modeling softwares realize the foundation of the corresponding three-dimensional entity model of each component in fastener system, further according to
The three-dimensional entity model of each component is assembled into the three-dimensional non-linear finite element mould under assembled state by the assembly method of fastener system
Type.But it should be noted that being to have by its format conversion after establishing three-dimensional non-linear finite element model in this way
The format that finite element analysis software can be read.
Step S102 carries out the analysis data that static analysis obtains spring to the three-dimensional non-linear finite element model.
Referring to figure 2., in embodiment provided by the present invention, in order to obtain the stress variation, change in displacement of spring and
The data such as initial load can carry out static analysis to three-dimensional non-linear finite element model in finite element analysis software.It has
Hold in vivo as described below.
Step S1021 obtains the physical attribute of each component and static analysis in the three-dimensional non-linear finite element model
First analysis parameter.
In embodiment provided by the invention, when carrying out static analysis, each portion can be first given in finite element analysis software
The corresponding model of part assigns each actual physical attribute of component, so that the three-dimensional non-linear finite element model established more meets reality
Border situation is analyzed further according to the first analysis parameter of setting, and the analysis result made is more accurate.
Specifically, user can be the three-dimensional non-thread of fastener system by finite element analysis software (such as ANSYS software)
Property finite element model in the components such as rail, spring, gauge block, elastic rubber pad, iron chair the corresponding material of each component is set
The parameters such as type, density of material, elasticity modulus, Poisson's ratio；The parameters such as its yield strength, ultimate strength, which can also be arranged, in spring makes
It more tallies with the actual situation when must analyze.For example, according to national standard (GB/T1222.2016 " spring steel "), type III fastener system
Carbon alloy spring steel (60Si2MnA) in the use of spring material, yield strength 1375MPa, ultimate strength 1570MPa；Steel
Rail material uses structural steel, and gauge block material is glass fiber reinforced polyamide 66, and elastic rubber pad material uses thermoplastic poly
Ester elastomer (TPEE), iron chair material use spheroidal graphite cast-iron (QT450-10), and detailed mechanics parameter is as shown in table 1.
Table 1
It is corresponding that finite element analysis software can also read all parts by the read path of setting from system file
Parameter in configuration file carries out the setting of the physical attribute of each partial model.
Static(al) can be arranged after being all provided in the physical attribute of each component in three-dimensional non-linear finite element model
The analysis parameter of analysis.User can pass through type that finite element analysis software setup module is analyzed, fixed constraint relationship, load
(playing journey), solution mode, sizing grid etc..
Specifically, for example when user use ANSYS software when, setting fastener system in each component physical attribute it
Afterwards, so that it may grid division according to the actual situation；Module analysis type is arranged to structural static；What selection was constrained
Constrained type is arranged in component；Select the acting surface of load；Finally, corresponding solution mode is arranged simultaneously in the data obtained as needed
It solves.The acting surface of the present embodiment load is the bottom surface of iron chair, and constrained type is staff cultivation.
Step S1022 obtains the three dimensional non-linear and has according to the physical attribute and the first analysis Parameter analysis
Limit the analysis data of meta-model.
In embodiment provided by the invention, the physical attribute of the three-dimensional non-linear finite element model of fastener system and first point
After analysis parameter is all provided with, so that it may solve to obtain analysis data using finite element analysis software.The present embodiment setting is asked
Solution mode includes the equivalent stress and displacement of spring, finally obtains the change in displacement data of three-dimensional non-linear finite element model and answers
Power delta data.(reaching the state of withholding) when the stress of spring and displacement change just terminates static analysis, records
Initial load of the load value at this time as model analysis.
It, can will be limited in order to more intuitively see the change in displacement situation of spring in embodiment provided by the invention
Obtained change in displacement data are loaded into the corresponding three-dimensional entity model of spring in meta analysis software, and are shown on model
Corresponding change in displacement situation, obtains displacement diagram.In order to more intuitively see the stress variation situation of spring, can also have
Obtained stress variation data are loaded into the corresponding three-dimensional entity model of spring in finite element analysis software, and are shown on model
Show corresponding stress variation situation, obtains stress diagram.
It is worth noting that in order to prevent in the three-dimensional non-linear finite element model of fastener system all parts contact surface
Between mutually penetrate, the result of analysis is impacted, finite element analysis software can also be used before carrying out static analysis
According to the interaction relationship between each component contact face, the contact relation between each component, fastener system in the present embodiment are set
Contact relation between each component is set as plane-plane contact analysis.It is established between the contact surface of all parts according to the actual situation
Contact relation, so that the result of analysis is more in line with actual conditions.It was installed with the non-bolt spring of DT type III fastener system
For journey, the contact relation of each component is as shown in table 2.It is being configured in ANSYS software according to the contact relation between each component
Corresponding analysis parameter sets staff cultivation for the bottom surface of iron chair two side portions, iron chair middle section is applied vertically upward
Add displacement load to be lifted, makes iron chair middle section with two side portions on the same horizontal plane, to simulate DT III
The non-bolt spring installation process of type fastener system.
Table 2
Then it calls the corresponding program of augmentation Lagrangian Arithmetic to be analyzed, establishes connecing between the contact surface of each component
Touching relationship.The contact relation between the contact surface of each component is also carried out accordingly when the first control parameter of static analysis is arranged
Setting, make analysis result be more in line with actual conditions, the result analyzed is also more accurate.
Step S103 carries out model analysis to the three-dimensional non-linear finite element model according to the analysis data, obtains
Each first order mode of spring and the corresponding intrinsic frequency of every first order mode.
In embodiment provided by the invention, the three-dimensional non-linear finite element model of fastener system is obtained by static analysis
After analyzing data, model analysis can be carried out according to the data that it is obtained on the basis of static analysis.
Specifically, in finite element analysis software by the Type Change of analysis be model analysis, by iron chair two side portions
Bottom surface be set as staff cultivation, then analyzed using complete method.It is described that specific step is as follows.
Step S1031 is arranged multiple load according to the analysis data that static analysis obtains and walks.
Embodiment provided by the invention, when static analysis, obtain spring and just reach initial load when withholding state, will
Its load value walked as first load simultaneously sets the time value for executing load step, then in order to obtain each first order mode and
The intrinsic frequency of each first order mode can according to need the multiple load steps of setting, and to each load step setting load value and execution
The time value of load step.In the mode of the mode or slope load that carry out that step-loaded can be used when the setting of load step
Apply load.Execute each load step time step can according to be arranged to etc. time steps or according to actual needs into
Row setting.
When each load step is arranged, user can be used input keyboard and be configured in finite element analysis software,
Corresponding configuration file can be read from system by the read path of setting to be configured.
Step S1032, each first order mode for carrying out model analysis acquisition spring is walked according to the load and each first order mode is corresponding
Intrinsic frequency.
In embodiment provided by the invention, it is being arranged that a load step is just stored in load file later, most
Mode point is carried out using the three-dimensional non-linear finite element model that finite element analysis software reads the load file contacting piece system afterwards
Analysis, obtains the delta data that each load walks corresponding spring, finally obtains the intrinsic frequency of each first order mode and each first order mode.
It, can also be according to the variation number of Heaven's commandments in order to more intuitively show the situation of change of the corresponding spring of each first order mode
According to the corresponding bending vibation mode picture of displaying each first order mode of spring in finite element analysis software.
Influence frequency range of the usual wave mill to wheel rail system is within 2000Hz.The present embodiment is with DT type III fastener system
For system, it is lifted iron chair middle section 11mm, spring bullet journey is 11.2mm, elastic-strip pressure 11.7kN at this time, wherein detaining
Part spring maximum stress is 1437.2MPa.Model analysis is carried out to it obtains each rank intrinsic frequency of the spring within the scope of 2000HZ
Rate is as shown in table 3.
Table 3
After carrying out model analysis, it is normal that spring can be obtained by according to the normal load range value of spring in fastener system
Intrinsic frequency range when work.
In order to judge whether rail corrugation can cause spring to generate resonance, embodiment provided by the present invention is also had detected
Rail corrugation data under actual conditions are analyzed, and particular content is as described below.
Step S201 obtains rail corrugation data.
It can or can not draw in embodiment provided by the invention in order to detect the wheel track excited frequency generated when train actual motion
It plays spring and generates resonance, can be obtained under fastener system actual conditions by rail corrugation detecting instrument or vibrating sensor
Rail corrugation data.
Step S202 obtains wheel track excited frequency according to the rail corrugation data.
After obtaining rail corrugation data, it can use finite element analysis software and frequency spectrum point carried out to rail corrugation data
Analysis, obtains its dominant wavelength ranges；Oscillograph can also be conducted into and obtain its dominant wavelength ranges；Frequency domain analysis can also be used
It establishes corresponding parser analysis and obtains its dominant wavelength ranges.After obtaining the dominant wavelength ranges of rail corrugation, so that it may logical
It crosses the Vehicle Speed detected when obtaining rail corrugation data and rail corrugation dominant wavelength ranges is analyzed to obtain rail corrugation
The wheel track excited frequency range of generation, referring to formula when analysisWherein, wherein λ represents rail corrugation dominant wavelength, ν generation
Table vehicle actual motion speed, f represent wheel track excited frequency.
Step S203 analyzes whether the spring resonates according to the intrinsic frequency and the wheel track excited frequency.
In embodiment provided by the invention, after obtaining wheel track excited frequency, just with spring by wheel track excited frequency range
Often intrinsic frequency range when work is compared it is known that whether spring can resonate, if can cause to resonate, just
Personnel can be arranged to safeguard the section of detection, prevent the generation of safety accident.
Referring to figure 3., Fig. 3 is rail fastener structure of the detecting device block diagram provided in an embodiment of the present invention.The present invention is implemented
The rail fastener detection device 100 that example provides includes: to obtain module 110, analysis module 120, detection module 130, judgment module
140。
The three-dimensional non-linear finite element model that module 110 is used to obtain each component composition in fastener system is obtained, is also used to
Obtain physical attribute, the second control parameter of the first control parameter of static analysis and model analysis of each component of fastener system.
Analysis module 120 is used to carry out three-dimensional non-linear finite element model static analysis to obtain to analyze data, and according to
The analysis data of static analysis carry out carry out model analysis to three-dimensional non-linear finite element model, obtain each first order mode of spring and every
The corresponding intrinsic frequency of first order mode.
Detection module 130 is also used to be analyzed according to rail corrugation data for obtaining rail corrugation data, analysis module 120
Obtain wheel track excited frequency.
Whether judgment module 140 is used to be resonated according to intrinsic frequency and wheel track excited frequency analysis spring.
Referring to figure 4., Fig. 4 is electronic devices structure schematic diagram provided in an embodiment of the present invention.
Electronic equipment 200 provided in an embodiment of the present invention includes memory 210；Storage control 220,；Processor 230；
Peripheral Interface 240；Vibrating sensor 270；Display 250；Input keyboard 260.Memory 210 is for storing performed by the present invention
Method program, for controlling memory 210, processor 230 is used for according to the control instruction received storage control 220
Execute corresponding program.Peripheral Interface 240 is coupled to processing for vibrating sensor 270, display 250, input keyboard 260 etc.
Device 230 and memory 210.Display 250 can be light-emitting diode display, LCD display etc., for showing stress diagram and displacement
Figure.Input keyboard 260 inputs the parameter of each component in three-dimensional non-linear finite element model for user, and vibrating sensor 270 is used
In detection rail corrugation data.
Memory 210 may be, but not limited to, random access memory (Random Access Memory, RAM), only
It reads memory (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
The process that any embodiment of the embodiment of the present invention discloses defines performed method and can be applied in processor 230, Huo Zheyou
Processor 230 is realized.
Processor 230 may be a kind of IC chip, the processing capacity with signal.Above-mentioned processor 230 can
To be general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit
(Network Processor, abbreviation NP) etc.；Can also be digital signal processor (DSP), specific integrated circuit (ASIC),
Field programmable gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hard
Part component.It may be implemented or execute each method, step disclosed in the embodiment of the present invention and logic diagram.General processor can
To be that microprocessor or the processor are also possible to any conventional processor etc..
In conclusion the embodiment of the present invention provides a kind of rail fastener detection method and device.Initially set up fastener system
Corresponding original ratio three-dimensional non-linear finite element model, obtains secondly, carrying out static analysis to the three-dimensional non-linear finite element model
Reach load value when withholding state to it, again, multiple load is arranged according to the load value and are walked, carry out mode using complete method
Analysis obtains the corresponding vibration shape of load value and intrinsic frequency (intrinsic frequency of i.e. each first order mode and each first order mode) of each load step,
Load range when according to the normal work of spring obtains intrinsic frequency range, then, by detecting under practical service state
Rail corrugation data analyze wheel track excited frequency range caused by obtaining rail corrugation, finally swash to intrinsic frequency range and wheel track
Vibration frequency range, which is compared, analyzes whether rail corrugation can cause spring to generate resonance.The present invention fully considers fastener system
Practical service state under influence of the other component to spring intrinsic frequency, on line carry out model analysis obtain under different conditions
The intrinsic frequency of spring；So that more quick to the identification of spring intrinsic frequency, more accurate.By to actual rail corrugation
Data are analyzed, in time find rail corrugation whether spring can be caused to resonate, so as to establishment officer to detect section into
Row maintenance.
It should be noted that the above description is only an embodiment of the present invention, it is not intended to restrict the invention, for this
For the technical staff in field, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of rail fastener detection method characterized by comprising
The three-dimensional non-linear finite element model of each component composition in fastener system is obtained, the fastener system includes spring；
Static analysis is carried out to the three-dimensional non-linear finite element model and obtains analysis data；
Model analysis is carried out to the three-dimensional non-linear finite element model according to the analysis data, obtains each rank of the spring
The vibration shape and the corresponding intrinsic frequency of every first order mode.
2. rail fastener detection method according to claim 1, which is characterized in that the method also includes:
Obtain rail corrugation data；
It analyzes to obtain wheel track excited frequency according to the rail corrugation data；
Analyze whether the spring can resonate according to the intrinsic frequency and the wheel track excited frequency.
3. rail fastener detection method according to claim 1, which is characterized in that each component in the acquisition fastener system
Before the three-dimensional non-linear finite element model of composition, further includes:
Corresponding former ratio three-dimensional entity model, the geometry category are established according to the geometric attribute of component each in the fastener system
Property includes sectional area, the moment of inertia, section factor；
The three-dimensional non-linear finite element model under the fastener system assembled state is established according to the three-dimensional entity model.
4. rail fastener detection method according to claim 1, which is characterized in that described limited to the three dimensional non-linear
Meta-model carries out the step of static analysis obtains analysis data, comprising:
Obtain the first analysis parameter of the physical attribute of each component and static analysis in the three-dimensional non-linear finite element model, institute
Stating physical attribute includes the elasticity modulus of each component, Poisson's ratio, density of material in fastener system, and the first analysis parameter includes
Load, deformation type, the module analysis type, constrained type of static analysis；
According to spring described in three-dimensional non-linear finite element model described in the physical attribute and the first analysis Parameter analysis
Delta data, the delta data includes the change in displacement data and stress variation data of the spring.
5. rail fastener detection method according to claim 4, which is characterized in that described limited to the three dimensional non-linear
Meta-model carries out static analysis and obtains analysis data, further includes:
The displacement diagram and stress diagram of the spring are obtained according to the delta data.
6. rail fastener detection method according to claim 3, which is characterized in that the acquisition three dimensional non-linear has
Before the step of physical attribute of each component and the first of static analysis analyze parameter in limit meta-model, further includes:
Obtain the interaction relationship of each component in the fastener system；
According to the interaction relationship, the contact relation between each component of the fastener system is set.
7. rail fastener detection method according to claim 1, which is characterized in that it is described according to the analysis data to institute
It states three-dimensional non-linear finite element model and carries out model analysis, each first order mode and the every first order mode for obtaining the spring are corresponding intrinsic
The step of frequency, comprising:
According to the analysis data that the static analysis obtains, multiple load steps are set；
Each first order mode and the corresponding intrinsic frequency of each first order mode for carrying out model analysis and obtaining the spring are walked according to the load；
The load step includes load value and the time value for executing the load step.
8. rail fastener detection method according to claim 2, which is characterized in that described according to the rail corrugation data
The step of analysis obtains wheel track excited frequency, comprising:
The rail corrugation data are analyzed to obtain the dominant wavelength ranges of rail corrugation；
It is analyzed to obtain the range of wheel track excited frequency caused by the rail corrugation according to the dominant wavelength ranges.
9. rail fastener detection method according to claim 8, which is characterized in that described according to the dominant wavelength ranges meter
The step of calculating the range of wheel track excited frequency caused by the rail corrugation is accomplished by the following way:
Wherein λ represents rail corrugation dominant wavelength, and ν represents vehicle actual motion speed, and f represents wheel track excited frequency.
10. a kind of rail fastener detection device characterized by comprising
Module is obtained, for obtaining the three-dimensional non-linear finite element model of each component composition in fastener system, the fastener system
Including spring；
The module that obtains is also used to obtain the physical attribute of each component of fastener system, the first analysis parameter of static analysis and mould
Second analysis parameter of state analysis；
Analysis module obtains analysis data for carrying out static analysis to the three-dimensional non-linear finite element model, and according to institute
State analysis data to the three-dimensional non-linear finite element model carry out model analysis, obtain the spring each first order mode and every rank
The corresponding intrinsic frequency of the vibration shape；
The rail fastener detection device further include:
Detection module, for obtaining rail corrugation data, the analysis module is also used to be analyzed according to the rail corrugation data
Obtain wheel track excited frequency；
Judgment module, for analyzing whether the spring resonates according to the intrinsic frequency and the wheel track excited frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474470.6A CN109583101A (en) | 2018-12-04 | 2018-12-04 | A kind of rail fastener detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474470.6A CN109583101A (en) | 2018-12-04 | 2018-12-04 | A kind of rail fastener detection method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109583101A true CN109583101A (en) | 2019-04-05 |
Family
ID=65927027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811474470.6A Pending CN109583101A (en) | 2018-12-04 | 2018-12-04 | A kind of rail fastener detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109583101A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990967A (en) * | 2019-04-30 | 2019-07-09 | 上海材料研究所 | The dynamic and fatigue behaviour detection device and method of a kind of rail assembling fastener system |
| CN110162846A (en) * | 2019-04-30 | 2019-08-23 | 西南交通大学 | The design method of composite rigidity under a kind of elasticity separated rail fastening system iron chair |
| CN111272550A (en) * | 2020-02-10 | 2020-06-12 | 西南交通大学 | Test method, test device, electronic equipment and storage medium |
| CN114878691A (en) * | 2022-07-08 | 2022-08-09 | 西南交通大学 | Data enhancement method for intelligent detection and multi-classification of rail corrugation |
| CN116432335A (en) * | 2023-03-03 | 2023-07-14 | 江阴市南方管件制造有限公司 | Preparation process of non-standard pipe fitting for chemical industry based on finite element analysis |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184289A (en) * | 2011-05-06 | 2011-09-14 | 大连船舶重工集团装备制造有限公司 | Method for carrying out stress analysis on first-class nuclear reactors through using ANSYS software |
| CN104268342A (en) * | 2014-09-28 | 2015-01-07 | 中航工业哈尔滨轴承有限公司 | Method for analyzing vibration characteristics of bearing retainer based on finite elements |
| CN104732030A (en) * | 2015-03-27 | 2015-06-24 | 北京航空航天大学 | Inflation flexible structure inherent characteristic solving method |
| CN106372286A (en) * | 2016-08-26 | 2017-02-01 | 中国电子科技集团公司第四十九研究所 | Sensor vibration resistance reliability improvement method based on structural parameter optimization |
-
2018
- 2018-12-04 CN CN201811474470.6A patent/CN109583101A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184289A (en) * | 2011-05-06 | 2011-09-14 | 大连船舶重工集团装备制造有限公司 | Method for carrying out stress analysis on first-class nuclear reactors through using ANSYS software |
| CN104268342A (en) * | 2014-09-28 | 2015-01-07 | 中航工业哈尔滨轴承有限公司 | Method for analyzing vibration characteristics of bearing retainer based on finite elements |
| CN104732030A (en) * | 2015-03-27 | 2015-06-24 | 北京航空航天大学 | Inflation flexible structure inherent characteristic solving method |
| CN106372286A (en) * | 2016-08-26 | 2017-02-01 | 中国电子科技集团公司第四十九研究所 | Sensor vibration resistance reliability improvement method based on structural parameter optimization |
Non-Patent Citations (5)
| Title |
|---|
| 伍胜男: "基于ANSYS的地铁弹条强度模拟分析", 《江西理工大学学报》 * |
| 刘笑天 等: "《ANSYS Workbench有限元分析工程实例详解》", 31 October 2017 * |
| 尚红霞: "地铁扣件系统静动力分析研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 张健: "不同受力环境下的钢轨扣件减振橡胶动态特性", 《铁道科学与工程学报》 * |
| 李霞: "地铁钢轨波磨形成机理研究", 《中国优秀博士学位论文全文数据库 工程科技II辑》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990967A (en) * | 2019-04-30 | 2019-07-09 | 上海材料研究所 | The dynamic and fatigue behaviour detection device and method of a kind of rail assembling fastener system |
| CN110162846A (en) * | 2019-04-30 | 2019-08-23 | 西南交通大学 | The design method of composite rigidity under a kind of elasticity separated rail fastening system iron chair |
| CN109990967B (en) * | 2019-04-30 | 2024-04-30 | 上海材料研究所有限公司 | Dynamic and fatigue performance detection device and method for steel rail assembly fastener system |
| CN111272550A (en) * | 2020-02-10 | 2020-06-12 | 西南交通大学 | Test method, test device, electronic equipment and storage medium |
| CN111272550B (en) * | 2020-02-10 | 2021-08-13 | 西南交通大学 | Elastic strip fatigue testing method and device, electronic equipment and storage medium |
| CN114878691A (en) * | 2022-07-08 | 2022-08-09 | 西南交通大学 | Data enhancement method for intelligent detection and multi-classification of rail corrugation |
| CN114878691B (en) * | 2022-07-08 | 2022-10-25 | 西南交通大学 | Data enhancement method for intelligent detection and multi-classification of rail corrugation |
| CN116432335A (en) * | 2023-03-03 | 2023-07-14 | 江阴市南方管件制造有限公司 | Preparation process of non-standard pipe fitting for chemical industry based on finite element analysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109583101A (en) | A kind of rail fastener detection method and device | |
| CN101416151B (en) | Reliablility simulation method and system | |
| CN104268335B (en) | Micro-group arrangement vibrating fatigue life-span prediction method and system | |
| Pan et al. | A novel method of vibration modes selection for improving accuracy of frequency-based damage detection | |
| Feng et al. | A kNN algorithm for locating and quantifying stiffness loss in a bridge from the forced vibration due to a truck crossing at low speed | |
| CN106482827A (en) | Electronic product based on crosspower spectrum function Modal Parameter Identification vibrates DLP method | |
| CN102867075B (en) | Acceleration frequency response analysis-based body floor optimal design method | |
| US8515569B2 (en) | Work support system, work support method, and storage medium | |
| CN103984813B (en) | A kind of vibration modeling of centrifugal compressor crackle blade wheel structure and analysis method | |
| CN109657306B (en) | Railway fastening elastic rod damaging identification method and device | |
| CN102841835B (en) | The method and system of hardware performance evaluation and test | |
| CN104239646B (en) | Micro-group arrangement vibrating fatigue life prediction Methods of Validating Simulation Model and system | |
| Voggu et al. | Dynamic nonlinearities for identification of the breathing crack type damage in reinforced concrete bridges | |
| CN106840869B (en) | A kind of hole-edge crack diagnostic method based on fiber grating spectral image analysis under two kinds of cloth patch modes | |
| CN106802969A (en) | The checking system and its verification method of damping material dynamic characteristic | |
| CN107016197A (en) | A kind of Ground Settlement method and Ground Settlement system | |
| CN106767475A (en) | A kind of hole-edge crack diagnostic method that fiber grating spectral image analysis are pasted based on horizontal cloth | |
| CN104200009B (en) | A kind of visualization interactive simulation method of multilayer circuit structure high-density wiring | |
| Song et al. | Estimation of impact loads in a hydraulic breaker by transfer path analysis | |
| US6101432A (en) | Vehicle rattle detection method and system | |
| US20080294397A1 (en) | Analytical method, recording medium, and analyzing apparatus | |
| CN109635403B (en) | Railway fastening elastic rod is broken splashing Risk Forecast Method and device | |
| Cherng et al. | A firmness index for fruits of ellipsoidal shape | |
| He et al. | The Effects of Load Location on Dropper Stress in a Catenary System for a High‐Speed Railway | |
| CN106643978A (en) | Data processing method and module |
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 |
Application publication date: 20190405 |
|
| RJ01 | Rejection of invention patent application after publication |