CN106595561A - Track detector track direction irregularity measuring method based improved chord measuring method - Google Patents
Track detector track direction irregularity measuring method based improved chord measuring method Download PDFInfo
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- CN106595561A CN106595561A CN201611119869.3A CN201611119869A CN106595561A CN 106595561 A CN106595561 A CN 106595561A CN 201611119869 A CN201611119869 A CN 201611119869A CN 106595561 A CN106595561 A CN 106595561A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
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Abstract
The invention discloses a track detector track direction irregularity measuring method based on an improved chord measuring method. The method includes the following steps: first, n track basic chord track direction measured values corresponding to mileage are input, and the corresponding chord is recorded as (A<i-2>, Ai); a straight line where the chord (A<i-2>, Ai) is serves as an X axis, A0 serves as an original point, and an axis which is vertical to the X axis and downward serves as a Y axis, a rectangular coordinate system is built; then, an included angle theta(i) between a line segment (A<i-2>, Ai) and the X axis is calculated; then coordinate values of A0, A1,..., An are calculated, and an equation of a straight line where the line segment (A0, An) is is calculated; and finally, distance from the Point A<n/2> to the abovementioned straight line is determined, i.e., the track M-meter chord track direction irregularity. The track detector track direction irregularity measuring method based on the improved chord measuring method is not easy to accumulate a bigger error due to a small error obtained by measurement, and calculation of a track direction value on a non-circular curve track can also obtain a relatively ideal result.
Description
Technical field
The present invention relates to railway wireline inspection field, more particularly to a kind of track rail based on improvement chord measurement is not to
Smooth-going value measurement method.
Background technology
Under the effect of rolling stock fluctuating load, track can produce vertical, horizontal dynamic elasticity deformation and remnants products
Tired deformation, referred to as track irregularity.Track irregularity can be generally divided into gauge, level (twist irregularity), height, rail to, it is compound
The long wave irregularity such as irregularity and continuous irregularity, and the shortwave such as rail corrugation, joint disease, engine burn and stripping is uneven
It is suitable.Wherein track alignment irregularity refers to that straight line is not straight, and curve is non-round, be often as the hard curved, fastener of rail loosen, easement curve it is suitable
What the reason such as slope is bad was caused, serious track alignment irregularity will cause very big cross force, may make sleeper, fastener defective sector
Rail tumble or the section of track is traversing, on gapless track, can also cause expansion rail track, jeopardize traffic safety.
The main method of the uneven compliance of measurement has chord measurement and inertia method, and large-scale track checking car mainly uses inertia method,
But due to gyroscope arrangement complexity, price, perishable, railway department regular maintenance railway is made up till now to be not suitable for transplanting
On trolley, therefore rail inspection instrument generally measures track alignment irregularity degree using chord measurement, in railway department, typically
Select 10 meters of string rails of straightway to 20 meters of string rails of curved section to (versed sine) weighing the state of rail.Traditional method, such as Jiangxi
Measurement Algorithm of the bright company of life to track alignment irregularity degree, is disadvantageous in that the error of the algorithm has a transmission and adds up
Process, the error of a very little can be also had a huge impact to final result.
It is therefore desirable to a kind of improved string of design surveys method, the standard of the track track alignment irregularity degree of rail inspection instrument measurement is improved
Really property, ensures the accuracy of the data obtained.
The content of the invention
Technical problem solved by the invention is, for the deficiency of currently available technology, proposes a kind of based on improvement string survey
The rail of method examines the measuring method of instrument track alignment irregularity degree, and the initial data of instrument collection is examined to rail (such as level, height using the method
With basic string rail to etc. data), more accurately can extrapolate 10 meters of string rails of rail linearity section to 20 meters of string rails of curved section
To (versed sine) value.
The technical scheme is that：
It is a kind of that instrument track alignment irregularity degree measuring method is examined based on the rail for improving chord measurement, comprise the following steps：
Step 1：Step-length T that instrument is measured every time, adopting needed for computation and measurement track M rice string track alignment irregularity degree are examined according to rail
Number of samples n=M/T；N=M/T is even number herein；
The basic string rail of the input corresponding n track of mileage to measure value sequence h (1), h (2) ..., h (i) ..., h (n) }；
Its corresponding string is respectively line segment (A0,A2),(A1,A3),…,(Ai-1,Ai+1),…,(An-1,An+1)；A0And An+1Respectively measure
Starting point and end point；Line segment (Ai,Ai+2) length be equal to rail examine instrument two-wheel fine strain of millet chord length T'=2T；
With line segment (A0,A2) place straight line be X-axis, A0For origin, vertical X axis set up rectangular coordinate system for Y-axis downwards；Note
Point AiCoordinate be (X [i], Y [i])；
Make line segment (A0,An), cross point An/2Make line segment (A0,An) vertical line, length of perpendicular Gn/2As track alignment irregularity degree；
Step 2：Using the geometrical relationship of mathematical model, with reference to the basic string rail of track to measured value, line segment (A is calculatedi-2,
Ai) with the angle theta (i) of X-axis, calculate especially by following recurrence formula：
Step 3：Calculate A0,A1,…,AnCoordinate figure；
Starting point A is obtained according to the method for building up of rectangular coordinate system in step 1 first0、A1And A2Coordinate be respectively (X
[0]=0, Y [0]=0), (X [1]=T, Y [1]=- h (1)) and (X [2]=2T, Y [2]=0)；
The θ (i) that the step 2 is obtained is recycled to calculate AiCoordinate (X [i], Y [i]), i=3,4 ..., n are calculated public
Formula is as follows：
Step 4：According to A0And AnCoordinate figure, calculate line segment (A0,An) with the angle theta of X-axis ', so as to obtain line segment (A0,
An) place straight line equation；
θ ' is calculated according to below equation：
θ '=arctan [(Y [n]-Y [0])/(X [n]-X [0])]
Thus, draw line segment (A0,An) place straight line equation be y=x tan θ '；
Step 5：According to the range formula of point to straight line, point A is obtainedN/2To straight line y=x tan θ ' apart from GN/2, as
Track M rice string track alignment irregularity degree：
In the step 1：
For rail linearity section, M=10, i.e. 10 meters of string track alignment irregularity degree of measure track straightway are taken；
For orbital curve section, M=20, i.e. 20 meters of string track alignment irregularity degree of measure track curved section are taken.
In the step 1：T=0.625m.10 meters of string rails of measure track straightway to when, the step-length of each measurement of rail inspection instrument
The two-wheel fine strain of millet chord length of T=0.625m and rail inspection instrument is T'=2T=1.25m, therefore calculates the rail of rail linearity section M=10m length
During to uneven compliance, the points of measurement are n=M/T=16.String (A0,A16) place straight line equation be y=x tan θ ', θ '=
Arctan ((Y [16]-Y [0])/(X [16]-X [0])), θ ' are line segment (A0,A16) place straight line and X-axis angle；Cross A8Point is made
Line segment (A0,A16) place straight line vertical line, length of perpendicular is G8, obtain vertical length G8Value, as 10 meters of strings of rail linearity section
Rail is to G8Value.According to the coordinate formula of point to straight line：
When 20 meters of string rails of measure track curved section are to (versed sine), step-length T=0.625m and rail that rail inspection instrument is measured every time is examined
The two-wheel fine strain of millet chord length of instrument is T'=2T=1.25m, therefore calculates the track alignment irregularity of orbital curve section M'=20m length when spending,
The points of measurement are N=M'/T=32.String (A0,A32) place straight line equation be y=x tan θ ", θ "=arctan ((Y
[32]-Y [0])/(X [32]-X [0])), θ " for line segment (A0,A32) place straight line and X-axis angle；Cross A16Point makees line segment (A0,
A32) place straight line vertical line, length of perpendicular is G16, obtain vertical length G16Value, as 20 meters of string rails of orbital curve section to
(versed sine) G16Value.According to the coordinate formula of point to straight line：
In the step 1：The basic string rail of n track to measurement value sequence h (1), h (2) ..., h (i) ..., h (n) } from
Preserve " .csv " that rail examines instrument gathered data. read in file.In the step 5：It is calculated 10 meters of strings of rail linearity section
20 meters of string rails of track alignment irregularity degree and curved section are stored in the file ended up with " .csv " to (versed sine) injustice compliance, to carry
Supply railway department understands track condition or is estimated.
Beneficial effect：
The present invention proposes a kind of rail inspection instrument track alignment irregularity degree measuring method based on improvement chord measurement, using the method
Process is carried out to initial data to the basic string rail that rail inspection instrument is gathered and obtains track alignment irregularity degree, the method is compared to prior art
In measuring method to track alignment irregularity degree, be easy to computer disposal, calculation procedure is few, is not likely to produce and makes because of the accumulation of error
Deviate the very big situation of actual value into data, and rail is calculated on the track of non-circular curve and can also obtain ideal to value
As a result.The measured value of the track alignment irregularity degree of gained can be to railway department to track condition understanding and assessment, it is existing
Guide maintenance, check and check and accept operation.
Description of the drawings
Fig. 1 is the overview flow chart that the present invention examines instrument track alignment irregularity degree measuring method based on the rail for improving chord measurement；
Fig. 2 is rail inspection instrument walking schematic diagram of the present invention；
Fig. 3 is the mathematical model schematic diagram of the improvement chord measurement of the present invention；
Specific embodiment
In order that the purpose of the present invention, technical scheme and advantage become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
The present invention is not limited.
Fig. 1 shows that the present invention examines the overall procedure of instrument track alignment irregularity degree measuring method based on the rail for improving chord measurement
Figure, key step are as follows：
S1：The basic string rail of one group of original track is input into data, track initial data is surveyed in actual track section by rail inspection instrument
Amount gained, data are stored in the file ended up with " .csv "；
S2：By data through improvement chord measurement calculate, obtain 10 meters of string rails of rail linearity section to 20 meters of string rails of curved section
To the track alignment irregularity value of (versed sine)；
S3：The track alignment irregularity value for obtaining is stored in the file that " .csv " ends up, calculating terminates, the data of this document
Can be used to help the work such as railway department guide line maintenance.
Fig. 2 is illustrated that rail inspection walking schematic diagram of the instrument on rail of the present invention, and rail inspection instrument equipment chord length is T'=2T=
The midpoint of 1.25m, AB=1.25m, O for AB, the value that h (i) is measured to sensor for rail, direction are sampling perpendicular to AB, wherein i
The quantity of point.Rail inspection instrument dolly is at the uniform velocity walked from track, every 0.625 meter-gage to sensor sample once basic string rail to value
H (i), can so obtain the basic string rail of track that unit corresponding with mileage is rice and measure sequence { h (1), h to value
(2),…,h(i),…,h(n)}。
Fig. 3 shows that the present invention improves the mathematical model schematic diagram of chord measurement, with reference to Fig. 2, to improving the detailed of chord measurement
Step is illustrated, and is comprised the following steps that：
Step 1：It is T'=2T=that step-length T=0.625m and rail that rail inspection instrument is measured every time examines the two-wheel fine strain of millet chord length of instrument
1.25m, therefore the track alignment irregularity of track M=10m length is calculated when spending, the points of measurement are N=M/T=16.Starting point is
A0, end point is A16, with A0A2(length is two-wheel fine strain of millet chord length T') is X-axis, A0For origin, vertical X axis are downwards Y-axis, make straight
Line (A0,A16), cross A8Point makees straight line (A0,A16) vertical line, length of perpendicular G8As track alignment irregularity numerical value.Input mileage correspondence
The basic string rail of track to initial data, as (A in figure0,A2),(A1,A3),…,(A15,A17) basic string rail corresponding to string
To original data sequence { h (1), h (2), h (3) ..., h (n) }；
Step 2, using the geometrical relationship of mathematical model, with reference to basic string rail to initial data, it can be deduced that following recursion
Formula：
Wherein the coordinate of A (i) is (X [i], Y [i]), and θ (i) is the angle of string { A (i-2), A (i) } and X-axis；
Step 3：(X [i], Y [i]), i=0,1 ..., 16 value, the following institute of computing formula are calculated using the step 2
Show：
Wherein starting point A0、A1And A2Coordinate be respectively (X [0]=0, Y [0]=0), (X [1]=0.625, Y [1]=- h
) and (X [2]=1.25, Y [2]=0) can be obtained according to the method for building up of rectangular coordinate system (1).Straight line (A0,A16) equation
For y=x tan θ ', θ '=arctan ((Y [16]-Y [0])/(X [16]-X [0])), θ ' are straight line (A0,A16) with the folder of X-axis
Angle；
Step 4：Obtain vertical length G8Value, as track alignment irregularity degree.According to the coordinate formula of point to straight line：
10 meters of string rails of the rail linearity section for obtaining are to G8Value, G8=abs ((Y [8]-Y [0]) * cos θ '-(X [8]-X [0]) *
sinθ'))。
According to the above-mentioned steps, 20 meters of string rails of orbital curve section are obtained in the same manner to (versed sine) value.Rail inspection instrument is surveyed every time
The two-wheel fine strain of millet chord length of step-length T=0.625m of amount and rail inspection instrument is T'=2T=1.25m, therefore calculates orbital curve section M'=
When the track alignment irregularity of 20m length is spent, the points of measurement are N=M'/T=32.Straight line (A0,A32) equation be y=x tan
θ ", θ "=arctan ((Y [32]-Y [0])/(X [32]-X [0])), θ " is straight line (A0,A32) with the angle of X-axis；Cross A16Point is made
Straight line (A0,A32) vertical line, length of perpendicular is G16, obtain vertical length G16Value, as 20 meters of string rails of orbital curve section are to G16
Value.According to the coordinate formula of point to straight line：
20 meters of string rails of the orbital curve section for obtaining are to (versed sine) G16Value, G16=abs ((Y [16]-Y [0]) * cos θ "-(X
[16]-X[0])*sinθ”))。
For the precision of measuring method in the checking present invention, choose high in Shanghai elder brother's high ferro using GJY-S-CSU-2 types rail inspection instrument
Pacifying the bend that section radius is ten thousand metres and the bend that Liuyang section radius is 11000 meters carries out experimental verification, is utilized respectively Jiangxi day
Yue Ming companies algorithm and the method for the present invention obtain 10 meters of string rails of straightway to 20 meters of string rails of curved section to (versed sine) value, in height
It is as shown in table 1 below that peace section and Liuyang section all randomly select three groups of comparative results：
1 experimental verification comparative result of table
It can be seen that it is proposed by the present invention improvement 10 meters of string rails of chord measurement measure track straightway to 20 meters of strings of curved section
Rail is big compared with the data precision drawn by the bright company of life to the precision of (versed sine), is difficult to accumulate because of the little error that measurement is obtained
Bigger error, and calculating rail can also obtain ideal result to value on the track of non-circular curve.
Above example is only a part of embodiment of the present invention, for one of ordinary skill in the art,
On the premise of not paying creative work, the alternative substantially identical with the present invention for obtaining belongs to the protection of the present invention
Scope.
Claims (5)
1. it is a kind of based on the rail inspection instrument track alignment irregularity degree measuring method for improving chord measurement, it is characterised in that to comprise the following steps：
Step 1：Step-length T that instrument is measured every time, the sampled point needed for computation and measurement track M rice string track alignment irregularity degree are examined according to rail
Number n=M/T；
The basic string rail of the input corresponding n track of mileage to measure value sequence h (1), h (2) ..., h (i) ..., h (n) }；Which is right
The string answered is respectively line segment (A0,A2),(A1,A3),…,(Ai-1,Ai+1),…,(An-1,An+1)；A0And An+1What is respectively measured rises
Initial point and end point；Line segment (Ai,Ai+2) length be equal to rail examine instrument two-wheel fine strain of millet chord length T'=2T；
With line segment (A0,A2) place straight line be X-axis, A0For origin, vertical X axis set up rectangular coordinate system for Y-axis downwards；Note point Ai's
Coordinate is (X [i], Y [i])；
Step 2：Using the geometrical relationship of mathematical model, with reference to the basic string rail of track to measured value, line segment (A is calculatedi-2,Ai) and X
The angle theta (i) of axle, calculates especially by following recurrence formula：
Step 3：Calculate A0,A1,…,AnCoordinate figure；
Starting point A is obtained according to the method for building up of rectangular coordinate system in step 1 first0、A1And A2Coordinate be respectively (X [0]=
0, Y [0]=0), (X [1]=T, Y [1]=- h (1)) and (X [2]=2T, Y [2]=0)；
The θ (i) that the step 2 is obtained is recycled to calculate AiCoordinate (X [i], Y [i]), i=3,4 ..., n, computing formula is such as
Shown in lower：
Step 4：According to A0And AnCoordinate figure, calculate line segment (A0,An) with the angle theta of X-axis ', so as to obtain line segment (A0,An) institute
In the equation of straight line；
θ ' is calculated according to below equation：
θ '=arctan ((Y [n]-Y [0])/(X [n]-X [0]))
Thus, draw line segment (A0,An) place straight line equation be y=x tan θ '；
Step 5：According to the range formula of point to straight line, point A is obtainedn/2To straight line y=x tan θ ' apart from Gn/2, as track M
Rice string track alignment irregularity degree：
2. according to claim 1 based on the rail inspection instrument track alignment irregularity degree measuring method for improving chord measurement, its feature exists
In in the step 1：
For rail linearity section, M=10, i.e. 10 meters of string track alignment irregularity degree of measure track straightway are taken；
For orbital curve section, M=20, i.e. 20 meters of string track alignment irregularity degree of measure track curved section are taken.
3. according to claim 1 based on the rail inspection instrument track alignment irregularity degree measuring method for improving chord measurement, its feature exists
In in the step 1：T=0.625m.
4. according to claim 1 based on the rail inspection instrument track alignment irregularity degree measuring method for improving chord measurement, its feature exists
In in the step 1：The basic string rail of n track to measurement value sequence h (1), h (2) ..., h (i) ..., h (n) } from preserving
Rail examines " .csv " of instrument gathered data. reads in file.
5. according to claim 1 based on the rail inspection instrument track alignment irregularity degree measuring method for improving chord measurement, its feature exists
In in the step 5：20 meters of string rails of 10 meters of string track alignment irregularity degree of rail linearity section and curved section are calculated to (versed sine) no
Smooth degree, is stored in the file ended up with " .csv ".
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| CN201611119869.3A CN106595561B (en) | 2016-12-08 | 2016-12-08 | It is a kind of that instrument track alignment irregularity degree measurement method is examined based on the rail for improving chord measurement |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843219A (en) * | 2017-10-26 | 2018-03-27 | 西南交通大学 | Track geometry irregularities measurement apparatus and method |
| CN107988864A (en) * | 2017-12-12 | 2018-05-04 | 西南交通大学 | Bridge deformation and Stochastic track irregularity detection device and method |
| CN111307078A (en) * | 2020-02-21 | 2020-06-19 | 暨南大学 | Track irregularity detection method and system based on four-point chord measurement method |
| CN112097586A (en) * | 2020-08-18 | 2020-12-18 | 中铁物总运维科技有限公司 | Method for processing rail irregularity data |
| CN115344913A (en) * | 2022-06-28 | 2022-11-15 | 中铁大桥勘测设计院集团有限公司 | Chord measuring value calculation method for bridge deformation evaluation |
| CN115388815A (en) * | 2022-07-08 | 2022-11-25 | 西南交通大学 | Static measurement method and device for irregularity of track functional part of magnetic suspension system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110058401A (en) * | 2009-11-26 | 2011-06-01 | 한국철도기술연구원 | Method for synchronizing positions of track irregularity data measured from railway track, and system for the same |
| CN102304884A (en) * | 2011-05-11 | 2012-01-04 | 长春理工大学 | Method for detecting smoothness of high-speed railway track |
| JP2015183428A (en) * | 2014-03-24 | 2015-10-22 | 三軌建設株式会社 | (laser type) mobile track three-point measuring device |
| CN105083320A (en) * | 2015-05-15 | 2015-11-25 | 西南交通大学 | Detection method and device of track regularity state |
| CN108009462A (en) * | 2016-10-31 | 2018-05-08 | 中南大学 | It is a kind of to be applied to rail inspection filtering method of the basic string rail of instrument to data |
-
2016
- 2016-12-08 CN CN201611119869.3A patent/CN106595561B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110058401A (en) * | 2009-11-26 | 2011-06-01 | 한국철도기술연구원 | Method for synchronizing positions of track irregularity data measured from railway track, and system for the same |
| CN102304884A (en) * | 2011-05-11 | 2012-01-04 | 长春理工大学 | Method for detecting smoothness of high-speed railway track |
| JP2015183428A (en) * | 2014-03-24 | 2015-10-22 | 三軌建設株式会社 | (laser type) mobile track three-point measuring device |
| CN105083320A (en) * | 2015-05-15 | 2015-11-25 | 西南交通大学 | Detection method and device of track regularity state |
| CN108009462A (en) * | 2016-10-31 | 2018-05-08 | 中南大学 | It is a kind of to be applied to rail inspection filtering method of the basic string rail of instrument to data |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843219A (en) * | 2017-10-26 | 2018-03-27 | 西南交通大学 | Track geometry irregularities measurement apparatus and method |
| CN107988864A (en) * | 2017-12-12 | 2018-05-04 | 西南交通大学 | Bridge deformation and Stochastic track irregularity detection device and method |
| CN107988864B (en) * | 2017-12-12 | 2019-06-14 | 西南交通大学 | Bridge deformation and Stochastic track irregularity detection device and method |
| CN111307078A (en) * | 2020-02-21 | 2020-06-19 | 暨南大学 | Track irregularity detection method and system based on four-point chord measurement method |
| CN112097586A (en) * | 2020-08-18 | 2020-12-18 | 中铁物总运维科技有限公司 | Method for processing rail irregularity data |
| CN112097586B (en) * | 2020-08-18 | 2022-07-29 | 中铁物总运维科技有限公司 | Method for processing rail irregularity data |
| CN115344913A (en) * | 2022-06-28 | 2022-11-15 | 中铁大桥勘测设计院集团有限公司 | Chord measuring value calculation method for bridge deformation evaluation |
| CN115344913B (en) * | 2022-06-28 | 2024-04-19 | 中铁大桥勘测设计院集团有限公司 | Chord measurement value calculation method for bridge deformation evaluation |
| CN115388815A (en) * | 2022-07-08 | 2022-11-25 | 西南交通大学 | Static measurement method and device for irregularity of track functional part of magnetic suspension system |
| CN115388815B (en) * | 2022-07-08 | 2024-04-02 | 西南交通大学 | Method and device for measuring irregularity of track functional part of magnetic suspension system in static mode |
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