CN105128888A - Track corrugated abrasion quick detection method based on multi-midpoint chord synchronous measurement - Google Patents
Track corrugated abrasion quick detection method based on multi-midpoint chord synchronous measurement Download PDFInfo
- Publication number
- CN105128888A CN105128888A CN201510531711.6A CN201510531711A CN105128888A CN 105128888 A CN105128888 A CN 105128888A CN 201510531711 A CN201510531711 A CN 201510531711A CN 105128888 A CN105128888 A CN 105128888A
- Authority
- CN
- China
- Prior art keywords
- track
- gauge head
- string
- synchronous
- value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention relates to a track corrugated abrasion quick detection method based on multi-midpoint chord synchronous measurement. The track corrugated abrasion quick detection method comprises a method for detecting the number of measuring heads used for detecting track corrugated abrasion and measuring the chord length, a method for collecting data of the multiple measuring heads and a track corrugated abrasion value restore method based on multi-midpoint chords. By means of the track corrugated abrasion quick detection method, based on the capability that an existing track detecting instrument can quickly detect the deviation of a track, the structure of the existing track detecting instrument and a detecting algorithm are transformed so as to obtain the track corrugated abrasion value, and the method is low in cost, good in effect, high in measuring and resolving efficiency and suitable for quick detection of corrugated abrasion in track public services.
Description
Technical field
The present invention relates to a kind of track waveform abrasion method for quick measured based on many strings, it directly applies to the detection of railroad track daily attention medium wave shape wave abrasion.
Background technology
Rail waveform abrasion (being called for short " ripple mill ") are extensively present in different kinds of railways track circuit, the excitation source of vibrations and noise is produced when being locomotive operation, the service life affecting locomotive and the traveling comfort taken, also may cause train derailment time serious, cause the massive losses of lives and properties.By to observe the ripple of various track mill and measurement shows that track ripple mill also exists universal law: the ripple mill frequency of same place track is basically identical, and maintain certain mileage, form is based on sinusoidal or quasi sine, range of wavelength is between 50mm-300mm, the initial stage that ripple mill is formed just must be repaired, otherwise will accelerate gradually in time to worsen.Therefore, how the key issue becoming the disease control of track ripple mill is detected to ripple mill.
One of domestic and international method of inspection to rail corrugation is inertia method, utilize the inertial reference of accelerometer, irregularity value is obtained by carrying out quadratic integral to the large-scale rail inspection train axle box acceleration signal obtained, as: the RCA ripple mill of Railmeasurement company of Britain development analyzes car, China rail undulatory wear dynamic detection system RCIU-1 etc.The most high energy of accuracy of detection of the method reaches micron order, but its equipment cost is very high, not too applicable in the daily manual inspection of track.Another kind of more common method of inspection is straight chi, as HYGP-3 rail flatness measuring instrument etc.Its principle of measurement is simple, but operator's labour intensity is large and measure inefficiency.
At present, the track geometry measuring trolley based on mid point string is widely used at each railway construction section, can realize the continuously and quickly measuring of track geometry status, and its groundwork is shown in following formula:
Wherein Δ is observed reading, and the measurement chord length that after L represents Plantago minuta, walking wheel is formed, F (X) represents track irregularity function.Mid point string survey method has an intrinsic defect, namely when L is the even-multiple of F (X) wavelength, Δ observed reading is 0, the test assignment of expectation can not be completed, therefore such dolly is mainly used in measuring the longer track geometry status of F (X) wavelength, that is, based on mid point string track geometry measuring trolley due to principle limit can not Measurement accuracy F (X) wavelength shorter track ripple mill.In view of the importance of track ripple mill disease, exploratory development is fast a kind of, low cost, and railroad track ripple mill method of inspection is the theoretic innovation of railway geometry state-detection accurately, is also requirement of engineering.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, propose the track waveform abrasion method for quick based on many mid points string synchro measure.
The present invention is achieved by the following technical solutions.
(1) measure string mid point gauge head bilateral symmetry at existing track geometry measuring trolley and add n to synchronous gauge head, each gauge head can contact raceway surface simultaneously.Track geometry measuring trolley " front and back walking wheel+mid point gauge head " form main string, " every a pair synchronous gauge head+mid point gauge head " forms one group of synchronous string.
The n of described mid point gauge head and interpolation adopts same signal to trigger sampling to synchronous gauge head, realizes the synchro measure of each gauge head.
(2) determine that gauge head is to quantity n and distance L each other
i:
According to many mid points string amplitude-frequency response function (as shown in the formula)
Calculate λ to change between 50mm-300mm, select different n values and L
ithe H obtained during value
n(ω) sequence x
jvariance S
2, computing formula as shown in the formula:
In formula (a), n represents the quantity that the synchronous gauge head of interpolation is right, and λ represents the wavelength that track ripple grinds, L
irepresent that i-th to the length between synchronous gauge head, L
0length before and after representing between walking wheel.S in formula (b)
2represent H
n(ω) variance yields of sequence, x
jrepresent H
n(ω) computing value of jth point in sequence, x represents H
n(ω) in sequence average a little, k represents gained H
n(ω) total length of sequence.
To the different n value obtained and L
is during value
2analyze, get S
2n value time minimum, L
0value and L
ibe worth as the length and i-th between the quantity of adding gauge head, front and back walking wheel the length between synchronous gauge head.
(3) track ripple mill amplitude calculates
Main string and each synchronous string are added in the observed reading of same orbit measurement point, obtain many mid points string measured value sum sequence Σ (X).Survey MODELSRationale according to mid point string, when track ripple grinding tool has wavelength X, many mid points string measured value sum sequence Σ (X) has wavelength X equally, uses mathematic(al) manipulation to find out wavelength X to Σ (X).Described mathematic(al) manipulation comprises wavelet transformation, Fourier transform, svd, the accelerating algorithm of empirical mode decomposition and said method.
The length L between the front and back walking wheel determined
0, add the right quantity n of synchronous gauge head, i is to the length L between synchronous gauge head
i, the track ripple mill wavelength X to be calculated by mathematic(al) manipulation, (a) formula of bringing into obtains H
n(ω) unique value б, then can calculate each value in many mid points string measured value sum sequence Σ (X) amplitude of current orbit ripple mill divided by б.
Algorithm of the present invention is automatic calculating, or manual calculations.
The present invention with the addition of multipair synchronous gauge head to realize the Quick Measurement to track ripple mill on the technical scheme basis of existing rail checking instrument, the method overcome the defect that existing track geometry measuring trolley accurately can not detect track ripple mill, measure with to resolve efficiency high, be applicable to the mill discovery of disease of railroad track ripple and the routine servicing of track irregularity.
Accompanying drawing explanation
Fig. 1 is track geometry measuring trolley gauge head erection plan;
In figure: 1 is 1 to synchronous gauge head, and 2 is front and back walking wheel, and 3 is mid point side head, and 4 is track geometry measuring trolley, 5 for having the track of waveform abrasion;
Fig. 2 is the algorithm flow of the track waveform abrasion method for quick based on many mid points string synchro measure.
Detailed description of the invention
The present invention 1 will be described further by reference to the accompanying drawings by following examples.
A pair synchronous gauge head 1, i.e. n=1 is added, then two mid points string amplitude-frequency response function (c) formed after can obtaining interpolation a pair synchronous gauge head according to formula (a) in track geometry measuring trolley 4 mid point gauge head 3 both sides.
H
1(ω)=2-cos(πL
0/λ)-cos(πL
1/λ)(c)
L is changed according to formula (c)
0and L
1value calculate H
1(ω) wavelength X be change between 50mm-300mm time sequence, use formula (b) to calculate their variance S to each group of response function sequence
2, get S
2l time minimum
1=667mm value is as the length between a pair synchronous gauge head 1 added; L
0the main chord length that=750mm value is formed as front and back walking wheel 2.The two mid point string track geometry measuring trolleys 4 that with the addition of a pair synchronous gauge head are used to carry out measuring on the track 5 with waveform abrasion, obtain two mid point string measured values sum sequence Σ (X) of actual measurement track ripple mill, mathematic(al) manipulation is carried out to Σ (X) and obtains its wavelength X.According to the n determined, L
0, L
1, current orbit ripple mill wavelength X is brought (c) into and is calculated H
1(ω) unique value б, can calculate each value in two mid point string measured value sum Σ (X) sequence divided by б the amplitude of current orbit ripple mill.
Claims (3)
1., based on a track waveform abrasion method for quick for many mid points string synchro measure, it is characterized in that:
(1) measure string mid point gauge head bilateral symmetry at existing track geometry measuring trolley and add n to gauge head, each gauge head can contact raceway surface simultaneously; Track geometry measuring trolley " front and back walking wheel+mid point gauge head " form main string, " every a pair synchronous gauge head+mid point gauge head " forms one group of synchronous string;
(2) determine that gauge head is to quantity n and distance L each other
i:
According to many mid points string amplitude-frequency response function (as shown in the formula)
Calculate λ to change between 50mm-300mm, select different n values and L
ithe H obtained during value
n(ω) sequence x
jvariance S
2, computing formula as shown in the formula:
In formula (a), n represents the quantity that the synchronous gauge head of interpolation is right, and λ represents the wavelength that track ripple grinds, L
irepresent that i-th to the length between synchronous gauge head, L
0length before and after representing between walking wheel; S in formula (b)
2represent H
n(ω) variance yields of sequence, x
jrepresent H
n(ω) computing value of jth point in sequence, x represents H
n(ω) in sequence average a little, k represents gained H
n(ω) total length of sequence;
To the different n value obtained and L
is during value
2analyze, get S
2n value time minimum, L
0value and L
ibe worth as the length and i-th between the quantity of adding gauge head, front and back walking wheel the length between synchronous gauge head.
(3) track ripple mill amplitude calculates
Main string and each synchronous string are added in the observed reading of same orbit measurement point, obtain many mid points string measured value sum sequence Σ (X), MODELSRationale is surveyed according to mid point string, when track ripple grinding tool has wavelength X, many mid points string measured value sum sequence Σ (X) has wavelength X equally; Mathematic(al) manipulation is used to find out wavelength X to Σ (X);
The length L between the front and back walking wheel determined
0, each synchronous string number n, each to the length L between the synchronous gauge head of synchronous string
i, the track ripple mill wavelength X to be calculated by mathematic(al) manipulation, (a) formula of bringing into obtains H
n(ω) unique value б, then can calculate each value in many mid points string measured value sum sequence Σ (X) amplitude of current orbit ripple mill divided by б.
2. the abrasion of the track waveform based on many mid points string synchro measure method for quick according to claim 1, is characterized in that: the n of described mid point gauge head and interpolation adopts same signal to trigger sampling to synchronous gauge head, realizes the synchro measure of each gauge head.
3. the abrasion of the track waveform based on many mid points string synchro measure method for quick according to claim 1, it is characterized in that: described mathematic(al) manipulation comprises wavelet transformation, Fourier transform, svd, the accelerating algorithm of empirical mode decomposition and said method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510531711.6A CN105128888B (en) | 2015-08-27 | 2015-08-27 | Track waveform abrasion method for quick based on many midpoint string synchro measures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510531711.6A CN105128888B (en) | 2015-08-27 | 2015-08-27 | Track waveform abrasion method for quick based on many midpoint string synchro measures |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105128888A true CN105128888A (en) | 2015-12-09 |
CN105128888B CN105128888B (en) | 2017-06-09 |
Family
ID=54714586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510531711.6A Active CN105128888B (en) | 2015-08-27 | 2015-08-27 | Track waveform abrasion method for quick based on many midpoint string synchro measures |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105128888B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110781575A (en) * | 2019-09-09 | 2020-02-11 | 江西农业大学 | Method for determining number and length of steel rail corrugation multi-midpoint chord measuring instrument chords |
CN114407968A (en) * | 2022-01-18 | 2022-04-29 | 中南大学 | Track irregularity detection device and method for straddle type monorail travel traffic system |
CN116552598A (en) * | 2023-07-10 | 2023-08-08 | 西南交通大学 | Permanent magnet track irregularity detection device and method |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05157548A (en) * | 1991-12-03 | 1993-06-22 | Hitachi Electron Eng Co Ltd | Measuring method for deviation of track |
RU2276216C2 (en) * | 2004-05-21 | 2006-05-10 | Александр Михайлович Боронахин | Method of measuring horizontal irregularities (levering) and curvature in plan of rail lines |
CN201126360Y (en) * | 2007-11-08 | 2008-10-01 | 同济大学 | Portable steel rail wave type abrasiveness measuring apparatus |
CN102951177A (en) * | 2011-08-19 | 2013-03-06 | 北京市重大项目建设指挥部办公室 | Method for determining causes of metro rail corrugation |
CN103174072A (en) * | 2011-12-26 | 2013-06-26 | 同济大学 | Rail surface detection method based on asymmetrical chord offset method |
CN103507833A (en) * | 2013-10-08 | 2014-01-15 | 江西日月明铁道设备开发有限公司 | Method for quickly measuring partial vector distances and vector distance difference of railway track |
JP2014240262A (en) * | 2013-06-12 | 2014-12-25 | 株式会社東芝 | Track inspection apparatus |
-
2015
- 2015-08-27 CN CN201510531711.6A patent/CN105128888B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05157548A (en) * | 1991-12-03 | 1993-06-22 | Hitachi Electron Eng Co Ltd | Measuring method for deviation of track |
RU2276216C2 (en) * | 2004-05-21 | 2006-05-10 | Александр Михайлович Боронахин | Method of measuring horizontal irregularities (levering) and curvature in plan of rail lines |
CN201126360Y (en) * | 2007-11-08 | 2008-10-01 | 同济大学 | Portable steel rail wave type abrasiveness measuring apparatus |
CN102951177A (en) * | 2011-08-19 | 2013-03-06 | 北京市重大项目建设指挥部办公室 | Method for determining causes of metro rail corrugation |
CN103174072A (en) * | 2011-12-26 | 2013-06-26 | 同济大学 | Rail surface detection method based on asymmetrical chord offset method |
JP2014240262A (en) * | 2013-06-12 | 2014-12-25 | 株式会社東芝 | Track inspection apparatus |
CN103507833A (en) * | 2013-10-08 | 2014-01-15 | 江西日月明铁道设备开发有限公司 | Method for quickly measuring partial vector distances and vector distance difference of railway track |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110781575A (en) * | 2019-09-09 | 2020-02-11 | 江西农业大学 | Method for determining number and length of steel rail corrugation multi-midpoint chord measuring instrument chords |
CN110781575B (en) * | 2019-09-09 | 2023-10-24 | 江西农业大学 | Method for determining number and length of strings of rail wave mill multi-midpoint string measuring instrument |
CN114407968A (en) * | 2022-01-18 | 2022-04-29 | 中南大学 | Track irregularity detection device and method for straddle type monorail travel traffic system |
CN116552598A (en) * | 2023-07-10 | 2023-08-08 | 西南交通大学 | Permanent magnet track irregularity detection device and method |
CN116552598B (en) * | 2023-07-10 | 2023-11-07 | 西南交通大学 | Permanent magnet track irregularity detection device and method |
Also Published As
Publication number | Publication date |
---|---|
CN105128888B (en) | 2017-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108845028B (en) | Method and device for dynamically detecting high-speed railway rail corrugation | |
CN103335617B (en) | A kind of railway track geometric deformation detection method based on vibration signal | |
CN202644332U (en) | Rail top surface irregularity detecting device | |
CN108515984B (en) | Wheel damage detection method and device | |
CN105923014B (en) | A kind of track transition Amplitude Estimation method based on evidential reasoning rule | |
CN102874278B (en) | Vehicle-mounted detection method fusing vehicle speed information and axle box vertical acceleration information for wheel flats | |
CN103852269A (en) | High-speed train operation kinetic parameter detection method | |
CN104947555A (en) | Track irregularity detection method and system based on four-point chord measuring method | |
CN103587551A (en) | Device and method for detecting urban rail vehicle wheel diameters through straight line vertical installation of sensors | |
CN203148402U (en) | Dynamic flatness detection device for steel rail | |
CN103591899A (en) | Device and method for detecting wheel diameter of urban rail vehicle through sensors installed on arc in normal direction | |
CN106595561B (en) | It is a kind of that instrument track alignment irregularity degree measurement method is examined based on the rail for improving chord measurement | |
CN107895478B (en) | Road traffic monitoring method for road surface | |
CN110220627A (en) | Test device, test macro and the test method of wheel rail force | |
CN102072789A (en) | Method for continuously processing wheel-track force of track vehicle by means of ground test | |
CN105128888A (en) | Track corrugated abrasion quick detection method based on multi-midpoint chord synchronous measurement | |
CN102360454A (en) | Wheel-track force prediction method based on NARX (Nonlinear Auto-regressive with Extra Inputs) neural network | |
CN105923015A (en) | Steel rail undulatory wear mobile measurement method with vibration reduction platform as inertia displacement standard | |
CN103591902A (en) | Device and method for detecting wheel diameter of urban rail vehicle based on laser sensors | |
Chen et al. | Mechanism of track random irregularity affecting dynamic characteristics of rack vehicle | |
CN102501886B (en) | Method and system for detecting states of steel rail welding joints of high-speed railway | |
CN203601294U (en) | Urban rail vehicle wheel diameter detecting device with sensors installed linearly and obliquely | |
CN103587550A (en) | Device and method for detecting urban rail vehicle wheel diameters through arc vertical installation of sensors | |
CN103587552B (en) | The wheel diameter of urban rail vehicle detecting device that linear sensor tilts to install and method | |
CN103174072A (en) | Rail surface detection method based on asymmetrical chord offset method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |