CN108593315A - The wheel polygon detecting method and terminal device of frequency domain character are vibrated based on axle box - Google Patents
The wheel polygon detecting method and terminal device of frequency domain character are vibrated based on axle box Download PDFInfo
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Abstract
The present invention relates to railway security monitoring technical fields, disclose a kind of wheel polygon detecting method and terminal device for vibrating frequency domain character based on axle box：The acceleration main frequency of vibration rate value f1 of the axle box and acceleration power spectral density SX1 of axle box when obtaining speed of service v1, v1 of wheel；According to the acceleration main frequency of vibration rate value f2 of f1 and the ideal lower axle box of smoother wheel effect, judge that wheel is damaged with the presence or absence of polygonization；If there are polygonization damages to judge the polygonization type of impairment of wheel in conjunction with preset fisrt feature table, v1 and f1 for wheel；Judge the abrasion depth of wheel in conjunction with preset second feature table and SX1 according to the polygonization type of impairment of wheel.This method by axle box acceleration and wheel damage type and the relationship of degree of injury in frequency domain angle analysis high speed rail train operation solves the problems, such as that the railroad train wheel polygon-type and degree of injury of high-speed cruising can not be detected present in existing wheel polygon detecting technology simultaneously.
Description
Technical field
The present invention relates to railway security monitoring technical fields, more particularly to a kind of vehicle vibrating frequency domain character based on axle box
Take turns polygon detecting method and terminal device.
Background technology
With the great-leap-forward development of China's rail traffic, the wheel of rail truck can connect after with a period of time because of rolling
The many factors such as tactile, traction braking and Vehicular vibration influence and form wheel polygonization phenomenon, i.e., wheel circumference is uneven
The lower periodic radial deviation formed of the factors such as abrasion effect.Dutch railway is described in detail with regard to someone early in the 1980s
The wheel polygon phenomenon of appearance, world-shaking Germany ICE (InterCityExpress, Intercity Express train) row in 1998
Vehicle derailment accident, reason are exactly that boss material abrasion produces wheel polygon phenomenon, lead to rim fatigue fracture, cause
101 people are dead, and 194 people are injured.Under high speed situations, though the small wheel polygon of amplitude may also cause it is strong between wheel track
Impact vibration generates the influence that can not be ignored to the stationarity of train operation, safety and riding comfort.
Since the abrasion depth of wheel polygonization is generally in millimeter rank, naked eyes detection is very difficult, former according to test
The difference of reason, train wheel condition monitoring has displacement method, image method, vibration acceleration method, ultrasonic telemetering both at home and abroad at present
Method, laser sensor method, noise measuring method and mechanical outline monitoring method etc., the monitoring system based on these methods is mostly sensing
One-to-many monitoring pattern is realized in device installation in orbit, and wheel flat detection when being mainly used for low speed.
By taking the patent of invention application No. is CN201710845323.4 as an example, it is vertical based on wheel track that the method discloses one kind
The wheel polygon recognition methods of power and its device can carry out monitoring and damage in real time to the vehicle by the monitoring section and comment
Sentence, but the realization of this method needs sensor installation realizing one-to-many monitoring pattern in orbit, it can only be to by being laid with
There is the train in the section of sensor to carry out the detection of wheel condition, and can only judge whether the wheel of vehicle occurs by this method
The type of polygon and polygon can not determine the abrasion depth of wheel.
In addition to wheel condition detection method mentioned above, vehicle abnormality vibration can also be in train caused by wheel fault
Axle box directly embody, compare some other method, pass through measure axle box vibration acceleration carry out wheel damage detection, measurement side
Just it is relatively low that special-purpose vehicle, test device cost, are not needed.But at present from the angle feed-back wheel polygon failure and status assessment
Research it is less, Li Yi Fan etc. is published in periodical《Vibration, test and diagnostic》04 month phase in 2016《Based on Hilbert-
The train wheel of Huang transformation loses circle fault diagnosis》It is damaged using axle box acceleration and signal processing algorithm detection wheel polygon
Wound, but the abrasion depth of None- identified wheel polygon.
Invention content
It is a kind of based on axle box vibration frequency the technical problem to be solved by the present invention is in view of the above shortcomings of the prior art, provide
The wheel polygon detecting method and terminal device of characteristic of field.
In order to solve the above technical problems, the technical solution used in the present invention is：
The first aspect of the embodiment of the present invention provides a kind of wheel polygon detecting vibrating frequency domain character based on axle box
Method, this method are applied to railroad train, and the railroad train includes wheel and axle box, and this method includes：
Obtain the speed of service v1 of the wheel, under the speed of service axle box acceleration main frequency of vibration rate value
The acceleration power spectral density SX1 of f1 and the axle box；
According to the acceleration main frequency of vibration rate value f2 of the axle box under the f1 and the smoother wheel effect of preset ideal, sentence
The wheel that breaks is damaged with the presence or absence of polygonization；
If there are polygonization damages to judge institute in conjunction with preset fisrt feature table, the v1 and the f1 for the wheel
State the polygonization type of impairment of wheel, wherein the fisrt feature table be the wheel polygonization type of impairment with it is described
The mapping table of the speed of service of wheel, the acceleration main frequency of vibration rate value of the axle box；
According to the polygonization type of impairment of the wheel, in conjunction with preset second feature table and the SX1, described in judgement
The abrasion depth of wheel, wherein the second feature table is the abrasion depth and wheel polygonization type of impairment, axle box of wheel
Acceleration power spectral density mapping table.
Further, the acceleration main frequency of vibration of the axle box according to f1 and under the smoother wheel effect of preset ideal
Rate value f2, before judging the wheel with the presence or absence of polygonization damage, this method further includes：
The f2 is obtained by analogue simulation；
The acceleration main frequency of vibration rate value according to the axle box under the f1 and the smoother wheel effect of preset ideal
F2 judges that the wheel is specifically included with the presence or absence of polygonization damage：
If f1=f2, there is no polygonization damages for the wheel；
If f1 ＞ f2, if or f1 ≠ f2, there are polygonization damages for the wheel.
Further, the fisrt feature table is calculated according to formula f=v/ λ=vn/2 π R, wherein formula
Middle v is the speed of service of the wheel, and n is the polygon exponent number of the wheel, and R is the radius of the wheel.
Further, the acquisition methods of the second feature table include：
Vehicle-track coupling system kinetic model is established, the model includes vehicle and track, and the vehicle includes vehicle
Body, bogie, wheel pair and axle box, the car body, bogie and wheel to have it is flexible, traversing, drift along, sidewinder, nod and shake the head
There is first rigid body degree of freedom of point, the axle box to be taken turns with described to being connected for six rigid body degree of freedom, the axle box, the wheel
To polygon excitation by it is described wheel to being transmitted on the axle box, the track be moving mass track, the track with
The wheel is to being connected；
Analogue simulation is carried out according to vehicle-track coupling system kinetic model, obtains the second feature table.
Further, if the wheel is there are polygonization damage, in conjunction with preset fisrt feature table, the v1 and
The f1 judges that the polygonization type of impairment of the wheel specifically includes：
Obtain the acceleration main frequency of vibration rate value f ' of all axle boxes in the fisrt feature table corresponding to v11,f’2……
f’x……f’nIf f 'x-△≤f1≤f’x+ △ then judges f1=f 'x, wherein △ is preset error value；
Obtain f 'xThe corresponding wheel polygon exponent number m in the fisrt feature table, the m are the wheel polygon
Change type of impairment.
Further, the polygonization type of impairment according to the wheel, in conjunction with preset second feature table and institute
SX1 is stated, judges that the abrasion depth of the wheel specifically includes：
Obtain all axle box acceleration power spectrums corresponding to wheel polygon exponent number m described in the second feature table
Angle value SX '1,SX’2……SX’x……SX’nIf SX 'x-△’≤SX1≤SX’x+ △ ' then judges SX1=SX 'x, wherein △ '
For preset error value；
Obtain SX 'xThe corresponding abrasion depth d in second feature table, the d are the abrasion depth of the wheel.
The second aspect of the embodiment of the present invention provides a kind of wheel polygon detecting vibrating frequency domain character based on axle box
Device, the device are applied to railroad train, and the railroad train includes wheel and axle box, which includes：First acquisition unit,
First judging unit, second judgment unit and third judging unit；
The acquiring unit, the speed of service v1 for obtaining the wheel, the axle box under the speed of service
The acceleration power spectral density SX1 of acceleration main frequency of vibration rate value f1 and the axle box；
First judging unit, the axle box adds under being used to be acted on according to the f1 and the smoother wheel of preset ideal
Speed main frequency of vibration rate value f2 judges that the wheel is damaged with the presence or absence of polygonization；
The second judgment unit, if for the wheel there are polygonization damage, in conjunction with preset fisrt feature table,
The v1 and f1 judges the polygonization type of impairment of the wheel, wherein the fisrt feature table is that the wheel is more
Side shape type of impairment and the speed of service of the wheel, the mapping table of the acceleration main frequency of vibration rate value of the axle box；
The third judging unit, it is special in conjunction with preset second for the polygonization type of impairment according to the wheel
Table and the SX1 are levied, judges the abrasion depth of the wheel, wherein the second feature table is the abrasion depth and vehicle of wheel
Take turns the mapping table of polygonization type of impairment, the acceleration power spectral density of axle box；
Further, the third judging unit is specifically used for：Obtain wheel polygon described in the second feature table
All axle box acceleration power spectral density value SX ' corresponding to exponent number m1,SX’2……SX’x……SX’nIf SX 'x-△’≤
SX1≤SX’x+ △ ' then judges SX1=SX 'x, wherein △ ' is preset error value；
Obtain SX 'xThe corresponding abrasion depth d in second feature table, the d are the abrasion depth of the wheel.
The third aspect of the embodiment of the present invention provides a kind of wheel polygon detecting vibrating frequency domain character based on axle box
Terminal device, including memory, processor and it is stored in the calculating that can be run in the memory and on the processor
Machine program, which is characterized in that the processor realizes the present invention for realizing a kind of above-mentioned base when executing the computer program
In the step of axle box vibrates the wheel polygon detecting method of frequency domain character.
The fourth aspect of the embodiment of the present invention provides a kind of computer readable storage medium, the computer-readable storage
Media storage has computer program, which is characterized in that realizes the present invention for real when the computer program is executed by processor
The step of existing a kind of above-mentioned wheel polygon detecting method for vibrating frequency domain character based on axle box.
It is using advantageous effect caused by above-mentioned technical proposal：By analyzing train running speed, axle box acceleration
Relationship between main frequency of vibration rate value, the acceleration power spectral density of axle box and wheel polygon-type and abrasion depth, quickly,
The accurately polygonization type of impairment and degree of injury of the wheel of judgement bullet train solves the prior art and needs in rail
The big quantity sensor of upper layout is with high costs and the problem of can not monitoring in real time, and the prior art based on axle box acceleration can not
The problem of analyzing wheel polygon degree of injury.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of wheel polygon detecting method flow vibrating frequency domain character based on axle box of the embodiment of the present invention
Figure；
Fig. 2 is a kind of vehicle-track coupling system kinetic model schematic diagram of the embodiment of the present invention；
Fig. 3 (a) is that the speed of service is 250km/h, and axle box shakes under the 25 rank wheel polygon excitations that the abrasion depth of convolution is 0.1mm
Dynamic acceleration responsive curve；
Fig. 3 (b) is that the speed of service is 250km/h, and framework shakes under the 25 rank wheel polygon excitations that the abrasion depth of convolution is 0.1mm
Dynamic acceleration responsive curve；
Fig. 3 (c) is that the speed of service is 250km/h, the 25 rank wheel polygon excitation lower bodies that the abrasion depth of convolution is 0.1mm
Vibration acceleration response curve；
Fig. 4 is that the speed of service is 250km/h, and axle box accelerates under ideal smoother wheel effect in the case of track irregularity
Spend power spectrum and the lower axle box acceleration power spectrum of 11 rank polygon wheels effect；
Fig. 5 is that the speed of service is 250km/h, and axle box adds under the effect of 6 rank polygon wheels in the case of track irregularity
Speed-power is composed and the lower axle box acceleration power spectrum of 11 rank polygon wheels effect；
Fig. 6 is axle box vibration acceleration power spectrum under the different 11 rank wheel polygon excitations for wearing away depth；
Fig. 7 is another wheel polygon detecting method that frequency domain character is vibrated based on axle box provided in an embodiment of the present invention
Flow chart；
Fig. 8 is that a kind of wheel polygon detecting device being vibrated frequency domain character based on axle box provided in an embodiment of the present invention is shown
It is intended to；
Fig. 9 is that a kind of wheel polygon detecting terminal for being vibrated frequency domain character based on axle box provided in an embodiment of the present invention is set
Standby schematic diagram.
Specific implementation mode
In being described below, for illustration and not for limitation, it is proposed that such as tool of particular system structure, technology etc
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specific
The present invention can also be realized in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
An embodiment of the present invention provides a kind of wheel polygon detecting methods and terminal for vibrating frequency domain character based on axle box
Equipment, in conjunction with Fig. 1, this method includes：
S101, obtain wheel the speed of service, under the speed of service axle box acceleration main frequency of vibration rate value f1 and axis
The acceleration power spectral density SX1 of case.
Specifically, for the influence that analysis wheel polygon vibrates axle box, establishes wheel rail dynamics model and analyzed.It is dynamic
Mechanical model includes two parts of vehicle and track.Frequency range involved by high frequency response due to wheel track is far above locomotive
The vibration frequency of upper part of the spring, can respectively be simplified rail portion and rolling stock part, auto model be reduced to by
Car body, bogie, wheel to the multi-rigid-body system of composition, consider it is flexible, traversing, drift along, sidewinder, nodding, shake the head 6 rigid bodies oneself
By spending, axle box only considers movement of nodding and (rotated around Y-axis), is carried out by the suspension of spring-damping unit simulation between rigid body
Connection, analysis calculate when mainly meter and unsprung mass, train axle box directly with wheel to being connected, wheel polygon excitation by take turns pair
It is directly delivered on axle box.Model trajectory uses moving mass track, rail to be connected by spring and damping element with sub-rail foundation,
And as rigid body with wheel to connecting.
Stock rail coupling system model is as shown in Figure 2.V indicates speed, m1Indicate unsprung mass, z1When indicating static
Wheel is to vertical deviation, K1Indicate the vertical stiffness of primary spring, m2Indicate track quality, K2Indicate track vertical stiffness, c2It indicates
Rail damping, z2Track vertical deviation when indicating static, all parameters are positive direction downwards.
Track structure is reduced to the equivalent system of single-degree-of-freedom according to energy method, endless linearly has the equivalent bullet of damping
Some parameters of property foundation beam, are converted to the equivalent damping under the equivalent quality and wheel being attached on each wheel and work as
Measure spring.When speed is v, it is assumed that it is a that wheel polygonization, which encourages the depth of convolution, and wheel rail system vertical dynamics equation is formula (1)：
Ordi-nary differential equation solving is carried out to formula (1), there is formula (2)：
In formula (2),For axle box acceleration, the solution of wheel rail relation is just
It is converted into the solution of linear differential equation with constant coefficients.
Wheel polygonization is described using Harmonic Type displacement function, for its input quantity formula (3) of certain single order wheel polygon：
Formula (4) is obtained to formula (3) Laplace transform：
To seek response z1With unsprung mass accelerationCorresponding to the transmission function of excitation a (t), enable
In formula, z1(s)、z2(s) it is respectively z1、z2Laplace transform, Hz1(s)、Hz2(s) it is respectively z1、z2To excitation
The transmission function of a (t).
Due to original state be 0, formula (2) carry out Laplace transform obtain formula (6),
Formula (5) is substituted into formula (6) solution and obtains formula (7)
Under zero initial condition,Laplace transform be
Due toAll it is just, to be judged according to Louth, characteristic equation
For formula (9)
All have negative real part, that is, have formula (10)：
Wherein Ai、pi, B, C be by ω1、ω2、c2、K1、K2, ω determine constant.
Ask inverse Laplace transform that can obtain
By formula (11) it is found that first item is the attenuation function unrelated with frequency, Section 2 isSteady-state value, do not examine herein
Consider phase difference,
By deriving it is found that axle box vertical acceleration caused by Harmonic Type wheel polygonizationFrequency and wheel polygon
The frequency of change is identical, and the vibration performance by detecting axle box acceleration can identify that wheel polygon damages.
Further, by taking certain domestic high-speed EMUs single-unit vehicle as an example, based on vehicle-track coupling system shown in Fig. 2
Kinetic model, using UniversalMechanism, (abbreviation UM is Russian Multibody Kinematics of new generation, dynamics
Simulation software) many-body dynamics software establishes hot-short Track Coupling System Dynamics Simulation Model.Steering framing wheel is to, axle box
It is connected by power member with components such as frameworks, primary spring, secondary spring, one be vertical damper and two are that transverse damper is adopted
It is simulated with linear force member, in addition, considering nonlinear wheel rail relation, non-linear wheel track creep characteristics and non-linear vehicle in model
Suspension, two be that vertical damper and anti-snake damper are simulated using non-linear force member.Wheel be ChineseLMA (in
State LMA, LMA are the general term for characterizing worn profile tread in the industry) worn profile tread, it is polygon using monochromatic wave functional simulation wheel
Shape damages input coupling system.Using moving mass track, be considered as ideal smooth-going state, rail lower structure be reduced to rigidity and
The spring element of damping.
Specifically, the type of impairment of wheel polygon can be described by polygon order (or polygon number of edges), vehicle
The degree of injury of wheel polygon can be described with abrasion depth.It is according to field measurement data it is found that common in China's high ferro
Wheel polygon exponent number is 1-4 ranks, 6 ranks, 11 ranks etc..
It is analyzed by taking the common wheel polygon damage of China's high ferro as an example, using the vehicle-as shown in Figure 2 of foundation
Track Coupling System kinetic model, the analysis speed of service are 250km/h, the 25 rank wheel polygons that abrasion depth is 0.1mm
The vibration acceleration response of axle box, framework and car body under excitation, simulation analysis result such as Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) institutes
Show.The vibration response curve of three is compared it is found that axle box acceleration caused by wheel polygonization excitation is maximum, vibration from lower and
Upper transmission, the framework vibration acceleration after single stage suspension vibration decaying takes second place, after the cushioning effect of secondary suspension
Almost without apparent vibration when being transmitted to car body, so carrying out the diagnosis point of wheel polygon damage based on axle box vibration performance
Analysis is more effective.
Conclusion is proved based on above-mentioned, in conjunction with simulation model shown in Fig. 2, utilizes the more body power of UniversalMechanism
It learns software and does the following two kinds analogue simulation respectively：
The first analogue simulation, simulation analysis (such as 250km/h) track irregularity and vehicle under a certain train running speed
Wheel polygonization axle box vibratory response feature caused when existing simultaneously.(no wheel is polygon for the ideal smoother wheel of simulation respectively
Shape, not damaged and abrasion wheels) axle box acceleration power spectrum under the excitation of track irregularity and wheel polygon rank
Secondary fixation (such as 11 rank wheel polygons) axle box acceleration power spectrum under the excitation of track irregularity, simulation result such as Fig. 4 institutes
Show, the abscissa representation space frequency of Fig. 4, ordinate is power spectral density, and power spectrum density symbolizes signal and included
Frequency component and different frequency components size.
It can be obtained by Fig. 4, under the speed of service of 250km/h, the basic frequency of the ideal smoother lower axle box vibration of wheel effect is
19.53Hz, the vibration are encouraged by track irregularity and are generated；Axle box main frequency of vibration rate is caused by 11 rank wheel polygons
263.67Hz。
According to wavelength fixed mechanism, wheel polygonization corresponds to specific spatial frequency f=v/ λ=vn/2 π R, example
Such as when wheel rolling radius of circle is 0.46m, axle box main frequency of vibration rate table caused by the 1-25 rank wheel polygons being calculated
As follows, the numerical value in the table is the theoretical value being calculated, which is referred to as fisrt feature table in embodiments of the present invention, first
Mark sheet is the speed of service (km/h, the speed list when table is calculated of wheel polygonization type of impairment (exponent number) and wheel
Position is m/s), the mapping table of the acceleration main frequency of vibration rate value (Hz) of axle box；It should be noted that in the embodiment of the present invention
Fisrt feature table be radius of wheel be 0.46m one embodiment, when radius of wheel changes, this table theoretical calculation
Value equally changes.
Fisrt feature table
In conjunction with fisrt feature table, 11 rank polygon wheels axle box vibration master under speed of service 250km/h effects can be inquired
Frequency is 264.3Hz, and the 263.67Hz obtained with analogue simulation is very close；
Fig. 5 is also the first analogue simulation, simulation analysis train track irregularity and vehicle when the speed of service is 250km/h
Wheel polygonization exists simultaneously caused axle box vibratory response feature, specifically, being feelings of the analogue simulation in track irregularity
Axle box acceleration responsive feature, simulation result such as Fig. 5 institutes under 6 rank wheel polygons and 11 rank wheel polygon collective effects under condition
Show.It can be obtained by Fig. 5, axle box main frequency of vibration rate caused by 6 rank wheel polygons is 146.48Hz, caused by 11 rank wheel polygons
Axle box main frequency of vibration rate is 263.67Hz, and for inquiry fisrt feature table it is found that when train running speed is 250km/h, 6 rank wheels are more
Axle box main frequency of vibration rate is respectively 144.2Hz and 264.3Hz under side shape and 11 rank wheel polygon excitations, is obtained with analogue simulation
146.48Hz and 263.67Hz it is very close, it is possible thereby to derive, the wheel polygon excitation lower axle in fisrt feature table
Case vibration acceleration basic frequency value and axle box vibration acceleration basic frequency value under actual wheel polygon excitation are almost the same, in vehicle
The speed of service v1 of wheel and when the axle box acceleration basic frequency value f1 of the speed of service Train is determined, it is special in conjunction with above-mentioned first
Levy table, you can judge whether wheel has polygon damage and type of impairment (wheel polygon exponent number).
S102, the acceleration main frequency of vibration rate value f2 that lower axle box is acted on according to f1 and the smoother wheel of preset ideal, judge
Wheel is damaged with the presence or absence of polygonization.
Specifically, the basic frequency value f2 of the ideal lower axle box vibration of smoother wheel effect can be by described in step S101
Method analogue simulation obtains.Excitation is generated since the ideal smoother lower wheel of wheel effect itself does not vibrate axle box, is only had at this time
Track irregularity, which vibrates axle box, generates excitation.When polygon damage occurs for wheel, in addition to track irregularity vibrates axle box
It is outer to generate excitation, wheel polygon, which can also vibrate axle box, generates excitation, even very small wheel polygon damage,
The excitation that smoother wheel generates axle box vibration can be also more than to the excitation that axle box vibration generates.For example, in conjunction with Fig. 4, axle box exists
The lower main frequency of vibration rate of smoother wheel excitation effect is 19.53Hz when train running speed is 250km/h, while by inquiring the
One mark sheet can obtain axle box and shake under 1 rank wheel polygon (wheel microlesion) incentive action when the speed of service is 250km/h
Dynamic basic frequency is 24Hz, hence it is evident that the 19.53Hz being more than under ideal smoother wheel effect, therefore, in this step, specifically, can
Wheel is carried out by following judgment basis to damage with the presence or absence of polygonization：
If f1=f2, there is no polygonization damages for judgement wheel；If f1 ＞ f2, if or f1 ≠ f2, there are polygon for wheel
Shapeization is damaged.
If there are polygonization damages to judge the more of wheel in conjunction with preset fisrt feature table, v1 and f1 for S103, wheel
Side shape type of impairment, wherein fisrt feature table be the speed of service of wheel polygonization type of impairment and wheel, axle box plus
The mapping table of speed main frequency of vibration rate value.
The acquisition of fisrt feature table and its particular content for being included elaborate in step S101, this step
In repeat no more.
Due to fisrt feature show really to characterize the speed of service of wheel polygonization type of impairment and wheel, axle box plus
The correspondence of speed main frequency of vibration rate value, after step S102 differentiates that wheel is damaged there are polygonization, and wheel is run
In the case that speed v1 and axle box acceleration main frequency of vibration rate f1 has determined, it is polygon that control fisrt feature table can be obtained wheel
Shape type (exponent number).
For example, work as v1=250km/h, when f1=456.6Hz, in conjunction with fisrt feature table, you can it is polygon to obtain wheel
Shape type of impairment is 19 rank wheel polygons.
S104, the polygonization type of impairment according to wheel judge described in conjunction with preset second feature table and SX1
Wear away depth, wherein second feature table is the abrasion depth and wheel polygonization type of impairment, the acceleration work(of axle box of wheel
The mapping table of rate spectrum density.
Based on the demonstration conclusion in step S101 UniversalMechanism is utilized in conjunction with simulation model shown in Fig. 2
Many-body dynamics software does second of analogue simulation：The wheel polygon of a certain fixed order (such as 11 ranks) is in different abrasion depth
Excitation under axle box vibration acceleration response situation, shown in analog result Fig. 7, abscissa representation space frequency (Hz), ordinate
For power spectral density (WHz-1)。
It can be obtained by Fig. 6, axle box main frequency of vibration rate is under 11 rank wheel polygon excitations of difference abrasion depth
263.67Hz, with the increase of abrasion depth, power spectral density value increases therewith.
As shown in fig. 6, axle box vibration acceleration power spectral density under 11 rank wheel polygon excitations of different abrasion depth
Respectively：When it is 0.10mm to wear away depth, axle box vibration acceleration power spectral density is 541.4WHz-1, when abrasion depth
For 0.08mm when, axle box vibration acceleration power spectral density be 353.80WHz-1, when it is 0.06mm to wear away depth, axle box shakes
Dynamic acceleration power spectral density is 199.14WHz-1, when it is 0.04mm to wear away depth, axle box vibration acceleration power spectrum
Degree is 88.54WHz-1, when it is 0.02mm to wear away depth, axle box vibration acceleration power spectral density is 22.13WHz-1。
Based on this, it can show that the corresponding axle box of 1-25 rank wheel polygons adds under the different abrasion depth of convolutions by analogue simulation
Speed-power spectral density value is as shown in the table, and following table is referred to as second feature table in embodiments of the present invention, and second feature table is
The mapping table of the abrasion depth of wheel and wheel polygonization type of impairment, the acceleration power spectral density of axle box.
Second feature table
Due to second feature show really to characterize the abrasion depth of wheel and wheel polygonization type of impairment, axle box plus
The correspondence of speed-power spectrum density, after step S103 determines wheel polygon type of impairment (exponent number), and axle box
In the case that acceleration power spectral density SX1 has determined, control second feature table can be obtained wheel polygon degree of injury
(abrasion depth).For example, when step S103 determines that wheel polygon exponent number is 19 ranks, and the obtained axle boxes of step S101
When acceleration power spectral density SX1 values are 181.9, you can acquisition wheel wear depth is 0.04mm.
An embodiment of the present invention provides a kind of wheel polygon detecting method for vibrating frequency domain character based on axle box, this method
Including obtain wheel speed of service v1, under the speed of service acceleration main frequency of vibration rate value f1 and axle box of axle box acceleration
Power spectral density SX1；According to the acceleration main frequency of vibration rate value f2 of f1 and the lower axle box of the smoother wheel effect of preset ideal, judge
Wheel is damaged with the presence or absence of polygonization；If wheel is there are polygonization damage, in conjunction with preset fisrt feature table, v1 and f1,
Judge the polygonization type of impairment of wheel, wherein fisrt feature table is the operation of wheel polygonization type of impairment and wheel
The mapping table of speed, the acceleration main frequency of vibration rate value of axle box；According to the polygonization type of impairment of wheel, in conjunction with default
Second feature table and SX1, judge the abrasion depth of wheel, wherein second feature table is that abrasion depth and the wheel of wheel are more
The mapping table of side shape type of impairment, the acceleration power spectral density of axle box.By analyzing train running speed, axle box adds
Relationship between speed main frequency of vibration rate value, the acceleration power spectral density of axle box and wheel polygon-type and abrasion depth,
The polygonization type of impairment and degree of injury of the wheel of fast and accurate judgement bullet train, solve prior art needs
Being laid out on rail, big quantity sensor is with high costs and the problem of can not monitor in real time, and the existing skill based on axle box acceleration
Art can not analyze the problem of wheel polygon degree of injury.
Further, in conjunction with Fig. 7, it is more that the embodiment of the present invention additionally provides a kind of wheel vibrating frequency domain character based on axle box
Side shape detection method, specifically includes：
S701, the acceleration main frequency of vibration rate value f2 that the ideal lower axle box of smoother wheel effect is obtained by analogue simulation；
Specifically, the specific method for obtaining f2 by analogue simulation please refers to the step S101 in embodiment 1, the present invention is real
Example is applied to repeat no more.
S702, obtain wheel speed of service v1, under the speed of service acceleration main frequency of vibration rate value f1 of axle box and
The acceleration power spectral density SX1 of axle box；
S703, the acceleration main frequency of vibration rate value f2 that lower axle box is acted on according to f1 and the smoother wheel of preset ideal, judge
It is described to be damaged with the presence or absence of polygonization；
If specifically, f1=f2, there is no polygonization damages for wheel；If f1 ＞ f2, if or f1 ≠ f2, wheel exist it is more
Side shapeization damage.It should be noted that two kinds of method of discrimination provided in an embodiment of the present invention do not represent the differentiation of step whole
Method, any method of discrimination based on achievable step of thinking of the present invention, belongs to protection scope of the present invention.
If there are polygonization damages to judge the more of wheel in conjunction with preset fisrt feature table, v1 and f1 for S704, wheel
Side shape type of impairment, wherein fisrt feature table be the speed of service of wheel polygonization type of impairment and wheel, axle box plus
The mapping table of speed main frequency of vibration rate value.
Preferably, the acquisition modes of fisrt feature table are：It is calculated according to formula f=v/ λ=vn/2 π R, wherein
V is the speed of service of wheel in formula, and n is the polygon exponent number of wheel, and R is the radius of wheel.
Specifically, since axle box acceleration main frequency of vibration rate value possibly obtained in real time can not be with the value in fisrt feature table
It is completely the same, to solve this problem, it is preferred that default first error amount △, with the following method：It obtains in fisrt feature table
The acceleration main frequency of vibration rate value f ' of all axle boxes corresponding to v11,f’2……f’x……f’nIf f 'x-△≤f1≤f’x+
△ then judges f1=f 'x；
Obtain f 'xCorresponding wheel polygon exponent number m, m are wheel polygonization type of impairment in fisrt feature table.
S705, the polygonization type of impairment according to wheel judge wheel in conjunction with preset second feature table and SX1
Wear away depth, wherein second feature table is the abrasion depth and wheel polygonization type of impairment, the acceleration work(of axle box of wheel
The mapping table of rate spectrum density.
Preferably, the acquisition modes of second feature table are：Establish vehicle-track coupling system kinetic model, the mould
Type includes vehicle and track, and the vehicle includes car body, bogie, wheel pair and axle box, and the car body, bogie and wheel are to having
Flexible, traversing, six rigid body degree of freedom of drifting along, sidewinder, nod and shake the head, the axle box have first rigid body degree of freedom of point,
The axle box is with the wheel to being connected, and the polygon excitation of the wheel pair is taken turns by described to being transmitted on the axle box, institute
It is moving mass track to state track, and the track, to being connected, by analogue simulation, obtains the second feature with the wheel
Table.
Specifically, since axle box acceleration power spectral density value possibly obtained in real time can not be with the value in second feature table
It is completely the same, to solve this problem, optionally, the second error amount △ ' is preset, with the following method：Obtain second feature table
All axle box acceleration power spectral density value SX ' corresponding to middle wheel polygon exponent number m1,SX’2……SX’x……SX’n,
If SX 'x-△’≤SX1≤SX’x+ △ ' then judges SX1=SX 'x, wherein △ ' is preset error value；Obtain SX 'xIn the second spy
Corresponding abrasion depth d in table is levied, d is the abrasion depth of wheel.
It should be noted that the value of the △ and △ ' in the embodiment of the present invention can be adjusted according to actual conditions, the present invention
Embodiment does not limit this.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
An embodiment of the present invention provides it is a kind of based on axle box vibrate frequency domain character wheel polygon detecting method, pass through by
The axle box acceleration power spectral density value area in axle box acceleration main frequency of vibration rate value and second feature table in fisrt feature table
Between change, the judgement of the type of impairment and degree of injury that make wheel polygonization is more convenient, solve the prior art need in iron
It is with high costs and the problem of can not monitor in real time that big quantity sensor is laid out on rail, and based on the prior art of axle box acceleration without
Method analyzes the problem of wheel polygon degree of injury.
Further, in conjunction with Fig. 8, the embodiment of the invention discloses a kind of wheel vibrating frequency domain character based on axle box is polygon
Shape detection device, the device are applied to railroad train, and railroad train includes wheel and axle box, which includes：First obtains list
Member 81, the first judging unit 82, second judgment unit 83 and third judging unit 84；
First acquisition unit 81, for obtaining the speed of service v1 of wheel, under the speed of service, the acceleration of axle box vibrates
The acceleration power spectral density SX1 of basic frequency value f1 and axle box；
First judging unit 82, for vibrating master according to the acceleration of f1 and the lower axle box of the smoother wheel effect of preset ideal
Frequency values f2 judges that wheel is damaged with the presence or absence of polygonization；
Second judgment unit 83, if for wheel there are polygonization damage, in conjunction with preset fisrt feature table, v1 and
F1 judges the polygonization type of impairment of wheel, wherein fisrt feature table is the fortune of wheel polygonization type of impairment and wheel
The mapping table of the acceleration main frequency of vibration rate value of scanning frequency degree, axle box；
Third judging unit 84, for according to the polygonization type of impairment of wheel, in conjunction with preset second feature table and
SX1 judges the abrasion depth of wheel, wherein second feature table be wheel abrasion depth and wheel polygonization type of impairment,
The mapping table of the acceleration power spectral density of axle box.
Further, in conjunction with Fig. 8, which further includes：Second acquisition unit 85；
Second acquisition unit 85 obtains f2 for passing through analogue simulation；
First judging unit is specifically used for：If f1=f2, judging wheel, there is no polygonization damages, if f1 ＞ f2,
If or f1 ≠ f2, judging wheel, there are polygonization damages.
Further, fisrt feature table is calculated according to formula f=v/ λ=vn/2 π R, wherein v in formula
It is the speed of service of wheel, n is the polygon exponent number of wheel, and R is the radius of wheel.
Further, second feature table is by establishing vehicle-track coupling system kinetic model, and model includes vehicle
And track, vehicle include car body, bogie, wheel pair and axle box, car body, bogie and wheel to have it is flexible, traversing, drift along, side
It rolls, nod and shakes the head six rigid body degree of freedom, axle box has first rigid body degree of freedom of point, and axle box and wheel are taken turns pair to being connected
Polygon excitation by wheel to being transmitted on axle box, track is moving mass track, track with take turns to being connected, pass through emulation
What simulation obtained.
Further, second judgment unit 83 is specifically used for：
Obtain the acceleration main frequency of vibration rate value f ' of all axle boxes in fisrt feature table corresponding to v11,f’2……f
’x……f’nIf f 'x-△≤f1≤f’x+ △ then judges f1=fx', wherein △ is preset error value；
Obtain fx' the corresponding wheel polygon exponent number m in fisrt feature table, m is wheel polygonization type of impairment.
Further, third judging unit 84 is specifically used for：
Obtain all axle box acceleration power spectral density value SX corresponding to wheel polygon exponent number m in second feature table
’1,SX’2……SX’x……SX’nIf SX 'x-△’≤SX1≤SX’x+ △ ' then judges SX1=SX 'x, wherein △ ' is default
Error amount；
Obtain SX 'xThe corresponding abrasion depth d in second feature table, d are the abrasion depth of wheel.
An embodiment of the present invention provides a kind of wheel polygon detecting devices vibrating frequency domain character based on axle box, by dividing
Analyse train running speed, axle box acceleration main frequency of vibration rate value, the acceleration power spectral density of axle box and wheel polygon-type
And the relationship between abrasion depth, the polygonization type of impairment and damage journey of the wheel of fast and accurate judgement bullet train
It is with high costs and can not monitor in real time to solve the problems, such as that prior art needs are laid out big quantity sensor on rail for degree, and
The prior art based on axle box acceleration can not analyze the problem of wheel polygon degree of injury.
Further, Fig. 9 is a kind of wheel polygon vibrating frequency domain character based on axle box provided in an embodiment of the present invention
The schematic diagram of detection terminal equipment.As shown in figure 9, a kind of wheel polygon vibrating frequency domain character based on axle box of the embodiment
Detection terminal equipment 9, including：It processor 90, memory 91 and is stored in the memory 91 and can be in the processor
The computer program 92 run on 90, such as a kind of wheel polygon detecting program for vibrating frequency domain character based on axle box.It is described
Processor 90 realizes above-mentioned each wheel polygon inspection that frequency domain character is vibrated based on axle box when executing the computer program 92
The step in embodiment of the method, such as step 101 shown in FIG. 1 are surveyed to 104.Alternatively, the processor 90 executes the calculating
The function of each module/unit in above-mentioned each device embodiment, such as the work(of module 81 to 85 shown in Fig. 8 are realized when machine program 92
Energy.
Illustratively, the computer program 92 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 91, and are executed by the processor 90, to complete the present invention.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Describe the computer program 92 it is described it is a kind of based on axle box vibrate frequency domain character wheel polygon detecting terminal device 9 in
Implementation procedure.For example, the computer program 92 can be divided into synchronization module, summarizing module, acquisition module, return to mould
Block (module in virtual bench), each module concrete function are as follows：
A kind of wheel polygon detecting terminal device 9 vibrating frequency domain character based on axle box can be that desktop calculates
The computing devices such as machine, notebook, palm PC and cloud server.A kind of wheel vibrating frequency domain character based on axle box is more
Side shape detection terminal equipment may include, but be not limited only to, processor 90, memory 91.It will be understood by those skilled in the art that figure
9 be only a kind of example of wheel polygon detecting terminal device 9, does not constitute and vibrating frequency domain character based on axle box to a kind of
The restriction of wheel polygon detecting terminal device 9 may include than illustrating more or fewer components, or the certain portions of combination
Part or different components, such as a kind of wheel polygon detecting terminal device based on axle box vibration frequency domain character is also
May include input-output equipment, network access equipment, bus etc..
Alleged processor 90 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), application-specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor
Deng.
The memory 91 can be that a kind of wheel polygon detecting terminal for being vibrated frequency domain character based on axle box is set
Standby 9 internal storage unit, such as a kind of hard disk for the wheel polygon detecting terminal device 9 vibrating frequency domain character based on axle box
Or memory.The memory 91 can also be that a kind of wheel polygon detecting terminal for being vibrated frequency domain character based on axle box is set
On standby 9 External memory equipment, such as a kind of wheel polygon detecting terminal device 9 vibrating frequency domain character based on axle box
The plug-in type hard disk of outfit, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD)
Card, flash card (Flash Card) etc..Further, the memory 91 can also both include described a kind of based on axle box vibration
The internal storage unit of the wheel polygon detecting terminal device 9 of frequency domain character also includes External memory equipment.The memory
91 for storing the computer program and a kind of wheel polygon detecting terminal for vibrating frequency domain character based on axle box
Other programs needed for equipment and data.The memory 91, which can be also used for temporarily storing, have been exported or will export
Data.It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
The division progress of unit, module, can be as needed and by above-mentioned function distribution by different work(for example, in practical application
Energy unit, module are completed, i.e., the internal structure of described device are divided into different functional units or module, to complete above retouch
The all or part of function of stating.Each functional unit, module in embodiment can be integrated in a processing unit, can also
It is that each unit physically exists alone, can also be during two or more units be integrated in one unit, above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.In addition, each functional unit,
The specific name of module is also only to facilitate mutually distinguish, the protection domain being not intended to limit this application.In above system
The specific work process of unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
The scope of the present invention.
In embodiment provided by the present invention, it should be understood that disclosed device/terminal device and method, it can be with
It realizes by another way.For example, device described above/terminal device embodiment is only schematical, for example, institute
The division of module or unit is stated, only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as
Multiple units or component can be combined or can be integrated into another system, or some features can be ignored or not executed.Separately
A bit, shown or discussed mutual coupling or direct-coupling or communication connection can be by some interfaces, device
Or INDIRECT COUPLING or the communication connection of unit, can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can be stored in a computer read/write memory medium.Based on this understanding, the present invention realizes above-mentioned implementation
All or part of flow in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program generation
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium
May include：Any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic of the computer program code can be carried
Dish, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to legislation in jurisdiction and the requirement of patent practice
Subtract, such as in certain jurisdictions, according to legislation and patent practice, computer-readable medium does not include electric carrier signal and electricity
Believe signal.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to aforementioned reality
Applying example, invention is explained in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each
Technical solution recorded in embodiment is modified or equivalent replacement of some of the technical features；And these are changed
Or replace, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of wheel polygon detecting method for vibrating frequency domain character based on axle box, this method is applied to railroad train, described
Railroad train includes wheel and axle box, which is characterized in that this method includes：
Obtain the speed of service v1 of the wheel, under the speed of service acceleration main frequency of vibration rate value f1 of the axle box and
The acceleration power spectral density SX1 of the axle box；
According to the acceleration main frequency of vibration rate value f2 of the axle box under the f1 and the smoother wheel effect of preset ideal, institute is judged
Wheel is stated to damage with the presence or absence of polygonization；
If there are polygonization damages to judge the vehicle in conjunction with preset fisrt feature table, the v1 and the f1 for the wheel
The polygonization type of impairment of wheel, wherein the fisrt feature table is the wheel polygonization type of impairment and the wheel
The speed of service, the acceleration main frequency of vibration rate value of the axle box mapping table；
Judge the wheel in conjunction with preset second feature table and the SX1 according to the polygonization type of impairment of the wheel
Abrasion depth, wherein the second feature table is that abrasion depth and the wheel polygonization type of impairment of wheel, axle box add
The mapping table of speed-power spectrum density.
2. a kind of wheel polygon detecting method for vibrating frequency domain character based on axle box according to claim 1, feature
It is, according to the acceleration main frequency of vibration rate value f2 of the axle box under the f1 and the smoother wheel effect of preset ideal, judges
Before the wheel is with the presence or absence of polygonization damage, this method further includes：
The f2 is obtained by analogue simulation；
The acceleration main frequency of vibration rate value f2 according to the axle box under the f1 and the smoother wheel effect of preset ideal sentences
The wheel that breaks is specifically included with the presence or absence of polygonization damage：
If f1=f2, there is no polygonization damages for the wheel；
If f1 ＞ f2, if or f1 ≠ f2, there are polygonization damages for the wheel.
3. a kind of wheel polygon detecting method for vibrating frequency domain character based on axle box according to claim 1 or 2, special
Sign is that the fisrt feature table is calculated according to formula f=v/ λ=vn/2 π R, wherein v is described in formula
The speed of service of wheel, n are the polygon exponent numbers of the wheel, and R is the radius of the wheel.
4. a kind of wheel polygon detecting method for vibrating frequency domain character based on axle box according to claim 1 or 2, special
Sign is that the acquisition methods of the second feature table include：
Establish vehicle-track coupling system kinetic model, the model includes vehicle and track, the vehicle include car body,
Bogie, wheel pair and axle box, the car body, bogie and wheel to have it is flexible, traversing, drift along, sidewinder, nod and shake the head six
There is first rigid body degree of freedom of point, the axle box to be taken turns with described to being connected for rigid body degree of freedom, the axle box, the wheel pair
Polygon excitation by it is described wheel to being transmitted on the axle box, the track be moving mass track, the track with it is described
Wheel is to being connected；
Analogue simulation is carried out according to vehicle-track coupling system kinetic model, obtains the second feature table.
5. a kind of wheel polygon detecting method for vibrating frequency domain character based on axle box according to claim 1 or 2, special
Sign is, if there are polygonization damages to sentence in conjunction with preset fisrt feature table, the v1 and the f1 for the wheel
The polygonization type of impairment of the disconnected wheel specifically includes：
Obtain the acceleration main frequency of vibration rate value f ' of all axle boxes in the fisrt feature table corresponding to v11,f’2……f
’x……f’nIf fx’-△≤f1≤fx'+△, then judge f1=f 'x, wherein △ is preset error value；
Obtain f 'xThe corresponding wheel polygon exponent number m in the fisrt feature table, the m damage for the wheel polygonization
Type.
6. a kind of wheel polygon detecting method for vibrating frequency domain character based on axle box according to claim 5, feature
It is, the polygonization type of impairment according to the wheel judges institute in conjunction with preset second feature table and the SX1
The abrasion depth for stating wheel specifically includes：
Obtain all axle box acceleration power spectral density values corresponding to wheel polygon exponent number m described in the second feature table
SX’1,SX’2……SX’x……SX’nIf SX 'x-△,≤SX1≤SX’x+ △ ' then judges SX1=SX 'x, wherein △ is pre-
If error amount；
Obtain SX 'xThe corresponding abrasion depth d in second feature table, the d are the abrasion depth of the wheel.
7. a kind of wheel polygon detecting device vibrating frequency domain character based on axle box, which is applied to railroad train, described
Railroad train includes wheel and axle box, which is characterized in that the device includes：First acquisition unit, the first judging unit, second sentences
Disconnected unit and third judging unit；
The acquiring unit, for obtaining the speed of service v1 of the wheel, under the speed of service axle box acceleration
Spend the acceleration power spectral density SX1 of main frequency of vibration rate value f1 and the axle box；
First judging unit, for the acceleration according to the axle box under the f1 and the smoother wheel effect of preset ideal
Main frequency of vibration rate value f2 judges that the wheel is damaged with the presence or absence of polygonization；
The second judgment unit, if for the wheel there are polygonization damage, in conjunction with preset fisrt feature table, described
The v1 and f1 judges the polygonization type of impairment of the wheel, wherein the fisrt feature table is the wheel polygon
Change the speed of service of type of impairment and the wheel, the mapping table of the acceleration main frequency of vibration rate value of the axle box；
The third judging unit, for the polygonization type of impairment according to the wheel, in conjunction with preset second feature table
And the SX1, judge the abrasion depth of the wheel, wherein the second feature table is more for the abrasion depth and wheel of wheel
The mapping table of side shape type of impairment, the acceleration power spectral density of axle box.
8. detection device according to claim 7, which is characterized in that the third judging unit is specifically used for：Obtain institute
State all axle box acceleration power spectral density value SX ' corresponding to wheel polygon exponent number m described in second feature table1,SX
’2……SX’x……SX’nIf SX 'x-△’≤SX1≤SX’x+ △ ' then judges SX1=SX 'x, wherein △ ' is default error
Value；
Obtain SX 'xThe corresponding abrasion depth d in second feature table, the d are the abrasion depth of the wheel.
9. it is a kind of based on axle box vibrate frequency domain character wheel polygon detecting terminal device, including memory, processor and
It is stored in the computer program that can be run in the memory and on the processor, which is characterized in that the processor is held
It is realized when the row computer program such as the step of any one of claim 1 to 6 the method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, feature to exist
In when the computer program is executed by processor the step of any one of such as claim 1 to 6 of realization the method.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334708A (en) * | 2018-10-11 | 2019-02-15 | 北京声科测声学技术有限公司 | A kind of wheel polygon method for testing and analyzing and system |
| CN109885898A (en) * | 2019-01-28 | 2019-06-14 | 华北水利水电大学 | The measuring method of the eigentone of non-linear rectangular section convexity spring |
| CN109974848A (en) * | 2019-03-28 | 2019-07-05 | 中车青岛四方机车车辆股份有限公司 | Train vibration analog detecting method |
| CN110210132A (en) * | 2019-06-03 | 2019-09-06 | 石家庄铁道大学 | Wheel polygon trackside detection method based on piezoelectric acceleration sensor |
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| CN111238837A (en) * | 2019-12-27 | 2020-06-05 | 西南交通大学 | Wheel set damage identification test bed for high-speed train based on wheel vibration acceleration response |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109334708A (en) * | 2018-10-11 | 2019-02-15 | 北京声科测声学技术有限公司 | A kind of wheel polygon method for testing and analyzing and system |
| CN109885898A (en) * | 2019-01-28 | 2019-06-14 | 华北水利水电大学 | The measuring method of the eigentone of non-linear rectangular section convexity spring |
| CN109974848A (en) * | 2019-03-28 | 2019-07-05 | 中车青岛四方机车车辆股份有限公司 | Train vibration analog detecting method |
| CN110210132A (en) * | 2019-06-03 | 2019-09-06 | 石家庄铁道大学 | Wheel polygon trackside detection method based on piezoelectric acceleration sensor |
| CN110210132B (en) * | 2019-06-03 | 2022-12-16 | 石家庄铁道大学 | Wheel polygonal trackside detection method based on piezoelectric acceleration sensor |
| CN110261139A (en) * | 2019-06-12 | 2019-09-20 | 中国神华能源股份有限公司 | Wheel tread flat recognition methods and identification device |
| CN110488042B (en) * | 2019-07-22 | 2021-12-07 | 中车青岛四方机车车辆股份有限公司 | Train acceleration detection method and system, electronic equipment and storage medium |
| CN110488042A (en) * | 2019-07-22 | 2019-11-22 | 中车青岛四方机车车辆股份有限公司 | A kind of train acceleration detection method, system, electronic equipment and storage medium |
| CN110450817A (en) * | 2019-09-11 | 2019-11-15 | 上海应用技术大学 | The wheel footpath difference detection system and method for axle box vibration |
| CN110450817B (en) * | 2019-09-11 | 2024-05-17 | 上海应用技术大学 | Axle box vibration wheel diameter difference detection system and method |
| CN110979390A (en) * | 2019-12-05 | 2020-04-10 | 中车株洲电力机车有限公司 | Method and system for repairing polygonal wheel of rail transit vehicle |
| CN111238837A (en) * | 2019-12-27 | 2020-06-05 | 西南交通大学 | Wheel set damage identification test bed for high-speed train based on wheel vibration acceleration response |
| CN112381027A (en) * | 2020-11-23 | 2021-02-19 | 西南交通大学 | Wheel polygon wave depth estimation method based on train axle box vertical acceleration signal |
| CN114954562A (en) * | 2022-04-25 | 2022-08-30 | 中国国家铁路集团有限公司 | Low-order wheel polygon identification method and device |
| CN114954562B (en) * | 2022-04-25 | 2024-07-09 | 中国国家铁路集团有限公司 | Low-order wheel polygon recognition method and device |
| CN114997218A (en) * | 2022-05-20 | 2022-09-02 | 西南交通大学 | Recognition and detection method for polygonal abrasion of wheels of railway vehicle |
| CN114997218B (en) * | 2022-05-20 | 2024-06-04 | 西南交通大学 | Identification and detection method for polygonal abrasion of wheels of railway vehicles |
| AT525890A4 (en) * | 2022-06-28 | 2023-09-15 | Siemens Mobility Austria Gmbh | Method and device for determining wheel geometry and rail vehicle |
| AT525890B1 (en) * | 2022-06-28 | 2023-09-15 | Siemens Mobility Austria Gmbh | Method and device for determining wheel geometry and rail vehicle |
| WO2024002829A1 (en) * | 2022-06-28 | 2024-01-04 | Siemens Mobility Austria Gmbh | Method and device for ascertaining the geometry of a wheel, and rail vehicle |
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