CN208621213U - A kind of measuring device and system of railroad track wheel rail force - Google Patents
A kind of measuring device and system of railroad track wheel rail force Download PDFInfo
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- CN208621213U CN208621213U CN201821164348.4U CN201821164348U CN208621213U CN 208621213 U CN208621213 U CN 208621213U CN 201821164348 U CN201821164348 U CN 201821164348U CN 208621213 U CN208621213 U CN 208621213U
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Abstract
This application provides the measuring devices and system of a kind of railroad track wheel rail force, wherein the measuring device of railroad track wheel rail force includes: the first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor and processor；First, second, third fiber-optic grating sensor is electrically connected with processor；Wherein the first fiber-optic grating sensor is for being mounted on the railroad track web of the rail to be measured；Second fiber-optic grating sensor is for being mounted on angle on railroad track rail bottom to be measured；Third fiber-optic grating sensor is used to be mounted on the rail bottom center of railroad track to be measured；Processor, for establishing the first amendment strain, the second amendment strain relationship between cross force and longitudinal force, or the wheel rail force for calculating railroad track to be measured respectively.The embodiment of the present application can be improved the precision and stability of track wheel rail force monitoring, and breaking through traditional test means cannot achieve the bottleneck of wheel rail force long-term dynamics monitoring.
Description
Technical field
This application involves railway engineering monitoring method technical fields, more particularly, to a kind of measurement of railroad track wheel rail force
Apparatus and system.
Background technique
With the continuous improvement of high-speed railway overall trip speed, the interaction between vehicle and track is more violent, to column
The operational safety of vehicle brings huge challenge.Therefore, carry out long term monitoring for wheel-rail interaction, to guarantee railway operation
Safety, promotion rail system long service performance have very important significance.The safety monitoring of wheel-rail interaction, Gui Genjie
Bottom is the real-time capture to vertical wheel rail force and cross force.
Applicant has found under study for action, in the prior art, is divided into on-road emission test and ground test to the test of wheel rail force.Vehicle
It carries test and is typically based on special instrumented wheelset completion, higher measurement accuracy can be reached, but its testing cost is higher, and only
It can be used for periodic track wheel track interactively detection, it is difficult to meet the needs of high-speed rail all-weather safety service state monitoring.
Ground test calculates dynamic wheel rail force, this method using strain bridge generally by the adhering resistance formula foil gauge on rail
It still can guarantee degree of precision in short-term test, but since resistive sensing elements are in waterproof, electromagnetism interference, high temperature resistant, corrosion resistant
The deficiency of erosion etc. performance, coarse noise and baseline drift are inevitably resulted under longtime running, is seriously affected
The stability and reliability of long term monitoring.
Utility model content
In view of this, a kind of measuring device and system for being designed to provide railroad track wheel rail force of the application, to mention
The precision and stability of high orbit wheel rail force monitoring, realizes the dynamic monitoring of wheel rail force, provides for the safety of train, even running
Reliable guarantee.
In a first aspect, the embodiment of the present application provides a kind of railroad track wheel track force measuring device, which includes: first
Fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor and processor；
First fiber-optic grating sensor, second fiber-optic grating sensor, the third fiber-optic grating sensor
It is electrically connected with the processor；
Wherein first fiber-optic grating sensor is for being mounted on the railroad track web of the rail to be measured；
Second fiber-optic grating sensor is for being mounted on angle on railroad track rail bottom to be measured；
The third fiber-optic grating sensor is used to be mounted on the rail bottom center of railroad track to be measured；
The processor, for according to the first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber grating
Sensor is obtained when applying different size of target lateral power and different size of target longitudinal force respectively to railroad track to be measured
The measurement data taken establishes the first amendment strain, the second amendment strain relationship between cross force and longitudinal force respectively, or
Existed according to the first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor in train
By the measurement data obtained when the railroad track to be measured, and the first amendment strain, the second amendment established strain difference
Relationship between cross force and longitudinal force calculates the wheel rail force of railroad track to be measured.
With reference to first aspect, the embodiment of the present application provides the first possible embodiment of first aspect, in which: institute
State processor and first fiber-optic grating sensor and second fiber-optic grating sensor and the third fiber grating
Between sensor, it is connected separately with a fiber grating and reconciles instrument；
The fiber grating reconciles instrument for respectively passing first fiber-optic grating sensor, second fiber grating
Sensor, third fiber-optic grating sensor transmitting measurement data electric signal is converted to by optical signal, and by the electric signal
Send processor to.
Second aspect, the embodiment of the present application provide a kind of railroad track wheel track force measuring system, which is characterized in that packet
It includes: railroad track wheel track force measuring device as claimed in claim 1 or 2, further includes: railroad track to be measured；
Wherein, first fiber-optic grating sensor is mounted on the railroad track web of the rail to be measured；Second fiber grating passes
Sensor is mounted on angle on the railroad track rail bottom to be measured；Third fiber-optic grating sensor is mounted on the rail bottom of railroad track to be measured
Center.
In conjunction with second aspect, the embodiment of the present application provides the first possible embodiment of second aspect, in which: institute
State the first fiber-optic grating sensor, second fiber-optic grating sensor and the third fiber-optic grating sensor, with it is described
Railroad track entire surface to be measured, which is pasted, fixes, and first fiber-optic grating sensor, second fiber-optic grating sensor
It is welded with the surface of the railroad track to be measured with the both ends of the third fiber-optic grating sensor.
In conjunction with the first possible embodiment of second aspect, the embodiment of the present application provides second of second aspect
Possible embodiment, in which: first fiber-optic grating sensor, second fiber-optic grating sensor and the third light
On the outside of the position that the both ends of fiber grating sensor and the surface of the railroad track to be measured are welded, it is additionally provided with waterproof layer.
In conjunction with second aspect, the embodiment of the present application provides the third possible embodiment of second aspect, in which: institute
State the axis of the fibre core of the first fiber-optic grating sensor, second fiber-optic grating sensor and the third fiber-optic grating sensor
Line is identical as the extending direction of axis of the railroad track to be measured.
In conjunction with second aspect, the embodiment of the present application provides the 4th kind of possible embodiment of second aspect, in which: institute
The outside for stating the first fiber-optic grating sensor, second fiber-optic grating sensor and the third fiber-optic grating sensor is also set
It is equipped with protection shell.
In conjunction with second aspect, the embodiment of the present application provides the 5th kind of possible embodiment of second aspect, in which: also
It include: jack；
The jack is used to apply to the railroad track to be measured different size of target lateral power and different size of
Target longitudinal force；
First fiber-optic grating sensor, second fiber-optic grating sensor, the third fiber-optic grating sensor
It is also used to apply different size of target lateral power to the survey railroad track in the jack and different size of target is vertical
When to power, measurement data is obtained；
The processor is also used to according to first fiber-optic grating sensor, second fiber-optic grating sensor, institute
It states third fiber-optic grating sensor and applies different size of target lateral power and not to the survey railroad track in the jack
With size target longitudinal force when obtain measurement data, establish the first amendment strain, second amendment strain respectively with cross force and
Relationship between longitudinal force.
In conjunction with the 5th kind of possible embodiment of second aspect, the embodiment of the present application provides the 6th kind of second aspect
Possible embodiment, in which: further include: pressure sensor；
The pressure sensor is arranged between the jack and the railroad track to be measured, in jack to institute
When stating the railroad track different size of target lateral power of application to be measured and different size of target longitudinal force, applied mesh is obtained
Mark the size of cross force and target longitudinal force.
In conjunction with the 6th kind of possible embodiment of second aspect, the embodiment of the present application provides the 7th kind of second aspect
Possible embodiment, in which: the pressure sensor is also connected with dynamic collecting instrument；
The dynamic collecting instrument is used to read the size of cross force and longitudinal force automatically from the pressure sensor.
This application provides the measuring device and system of a kind of railroad track wheel rail force, use fiber-optic grating sensor as
The main components of measurement；Fiber-optic grating sensor has many advantages, such as that detection sensitivity is high, precision is high, the service life is long, steady in a long-term.
First fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor and processor；The first, second,
Third fiber-optic grating sensor is electrically connected with processor；Wherein the first fiber-optic grating sensor is for being mounted on rail to be measured
The road web of the rail；Second fiber-optic grating sensor is for being mounted on angle on railroad track rail bottom to be measured；Third fiber-optic grating sensor is used
In the rail bottom center for being mounted on railroad track to be measured；Processor, for establish the first amendment strain, second amendment strain respectively with
Relationship between cross force and longitudinal force, or the wheel rail force for calculating railroad track to be measured.Using this railroad track wheel
The precision and stability of track wheel rail force monitoring can be improved in rail force measuring device, realizes the long-term dynamics monitoring of wheel rail force.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the first optical fiber grating sensing in the railroad track wheel track force measuring device of the offer of the embodiment of the present application one
Device, the second fiber-optic grating sensor and third fiber-optic grating sensor scheme of installation；
Fig. 2 shows the connection schematic diagrams for the railroad track wheel track force measuring device that the embodiment of the present application one provides；
Fig. 3 shows a kind of railroad track wheel track force measuring system schematic diagram provided by the embodiments of the present application；
Fig. 4 show it is provided by the embodiments of the present application the first fiber-optic grating sensor, the second fiber-optic grating sensor and
The structural schematic diagram for the protection shell being arranged on the outside of third fiber-optic grating sensor；
Fig. 5 shows a kind of railroad track wheel rail force measuring method flow chart of the offer of the embodiment of the present application two；
Fig. 6 show it is provided by the embodiments of the present application it is a kind of obtain first amendment strain, second amendment strain respectively with cross
To the flow chart of the specific method of the relationship between power and longitudinal force；
Fig. 7 shows a kind of according to corresponding first mesh of all target measurement data of the offer of the embodiment of the present application three
Mark amendment strain, second target amendment strain, and with the target lateral power size and the target longitudinal force size
Between corresponding relationship, obtain the first amendment strain, the second amendment strain linear pass between cross force and longitudinal force respectively
The flow chart of the specific method of system；
Fig. 8 shows a kind of railroad track wheel track force measuring device composition schematic diagram of the offer of the embodiment of the present application four；
Fig. 9 shows a kind of structural schematic diagram of computer equipment of the offer of the embodiment of the present application five.
Illustrate: processor 10, fiber grating reconcile instrument 20, railroad track to be measured 30, waterproof layer 40, protection shell
50；
First fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, third fiber-optic grating sensor FBG3.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, below to the application's provided in the accompanying drawings
The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application
Apply example.Based on embodiments herein, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall in the protection scope of this application.
On-road emission test and ground test are divided into the test of wheel rail force at present.On-road emission test is typically based on special force-measuring wheel
To completion, higher measurement accuracy can be reached, but its testing cost is higher, and be only used for periodic track rail wheeling action
Relationship detection, it is difficult to meet the needs of high-speed rail all-weather safety service state monitoring.Ground test on rail generally by gluing
Resistance strain plate is pasted, calculates dynamic wheel rail force using strain bridge, this method still can guarantee more high-precision in short-term test
Degree, but due to resistive sensing elements waterproof, electromagnetism interference, high temperature resistant, in terms of performance deficiency, transported for a long time
Coarse noise and baseline drift are inevitably resulted under row, have seriously affected the stability and reliability of long term monitoring, base
In this, a kind of measuring device and system of railroad track wheel rail force provided by the present application can be by using optical fiber grating sensings
Device realizes the measurement to railroad track wheel rail force, can be improved the precision and stability of track wheel rail force monitoring, realizes wheel rail force
Dynamic monitoring, provide reliable guarantee for the safety of train, even running.
For convenient for understanding the present embodiment, first to a kind of railroad track wheel rail force disclosed in the embodiment of the present application
Measuring device describe in detail.The measuring device of the railroad track wheel rail force, specific there are two effects:
(1) corresponding relationship for establishing between railroad track strain and railroad track wheel rail force；Here due to rail
Road wheel rail force can usually be broken down into horizontal cross force and longitudinal force vertically downward, therefore, to be answered by railroad track
Become and the relationship between cross force, longitudinal force, characterization railroad track strain the corresponding relationship between railroad track wheel rail force.
Herein, the corresponding relationship between railroad track strain and railroad track wheel rail force is established, it be by respectively to railway
Track applies cross force of different sizes and longitudinal force of different sizes, and longitudinal force and cross force based on application, Yi Ji
The strain that railroad track is corresponded to when applied force, to railroad track strain railroad track wheel rail force between corresponding relationship into
Rower obtains surely；The process of calibration can carry out under simulated scenario, namely for the field erected railroad track to be measured of simulation
It is demarcated；It can also be demarcated at the scene, that is, being actually subjected to put into effect or for being already installed on railway
It is directly demarcated on the railroad track to put into effect.
When the process of calibration carries out under simulated scenario, used railroad track to be measured, with real realization measurement
Specification, material, technique of railroad track to be measured etc. are consistent；Meanwhile the measuring device of the railroad track wheel rail force of calibration,
The measuring device of used railroad track wheel rail force is consistent when also measuring with real realization.
When the process of calibration is to carry out at the scene, establish railroad track strain and railroad track wheel rail force it
Between corresponding relationship after, the measuring device of railroad track wheel rail force used in calibration process, can not be by after calibration
It disassembles, but is used directly to measure wheel rail force of the railroad track to be measured during actual operation.
(2) for being mounted in the railroad track to be measured actually to put into effect, wheel rail force is carried out to railroad track to be measured
Measurement.
Referring to figure 1 and figure 2, the railroad track wheel track force measuring device that the embodiment of the present application one provides, including first
Fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, third fiber-optic grating sensor FBG3 and processor 10.
The first fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, the third optical fiber light
Gate sensor FBG3 is connected to the processor 10 connections；
Wherein, first fiber-optic grating sensor is for being mounted on the railroad track web of the rail to be measured；The second optical fiber light
Gate sensor is for being mounted on angle on railroad track rail bottom to be measured；The third fiber-optic grating sensor is for being mounted on iron to be measured
The rail bottom center in rail road.
The processor, for according to the first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber grating
Sensor is obtained when applying different size of target lateral power and different size of target longitudinal force respectively to railroad track to be measured
The measurement data taken establishes the first amendment strain, the second amendment strain relationship between cross force and longitudinal force respectively, or
Existed according to the first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor in train
By the measurement data obtained when the railroad track to be measured, and the first amendment strain, the second amendment established strain difference
Relationship between cross force and longitudinal force calculates the wheel rail force of railroad track to be measured.
In addition, it is shown in Figure 2, in railroad track wheel track force measuring device provided by the embodiments of the present application, the processing
Device 10 and the first fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, the third optical fiber grating sensing
Between device FBG3, it is connected separately with a fiber grating and reconciles instrument 20；
The fiber grating reconciles instrument for respectively passing first fiber-optic grating sensor, second fiber grating
Sensor, third fiber-optic grating sensor transmitting measurement data electric signal is converted to by optical signal, and by the electric signal
Send processor to.
The embodiment of the present application uses fiber-optic grating sensor as the main components of measurement wheel rail force；Optical fiber grating sensing
Device has many advantages, such as that detection sensitivity is high, precision is high, the service life is long, steady in a long-term, and the first fiber-optic grating sensor is for installing
In the railroad track web of the rail to be measured；Second fiber-optic grating sensor is for being mounted on angle on railroad track rail bottom to be measured；The third
Fiber-optic grating sensor is used to be mounted on the rail bottom center of railroad track to be measured.When measuring, processor being capable of root
Pass through iron to be measured in train according to the first fiber-optic grating sensor, the second fiber-optic grating sensor and third fiber-optic grating sensor
The measurement data obtained respectively when rail road calculates the wheel that train applies when passing through railroad track to be measured to railroad track to be measured
Track cross force and longitudinal force.Using this railroad track wheel track force measuring device, the essence of track wheel rail force monitoring can be improved
Degree and stability realize the long-term dynamics monitoring of wheel rail force.
In addition, the embodiment of the present application also provides a kind of railroad track wheel track force measuring system referring to shown in Fig. 1 to Fig. 3, packet
It includes: such as the railroad track wheel track force measuring device in above-described embodiment, further includes: railroad track 30 to be measured；
Wherein, the first fiber-optic grating sensor FBG1 is mounted on 30 web of the rail of railroad track to be measured；Second optical fiber
Grating sensor FBG2 is mounted on angle on 30 rail bottom of railroad track to be measured；Third fiber-optic grating sensor FBG3 be mounted on to
Survey the rail bottom center of railroad track 30.
For precise measurement, the first fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, institute
State the middle part that third fiber-optic grating sensor FBG3 is installed in a railroad track 30 to be measured, and the first fiber-optic grating sensor
FBG1, the second fiber-optic grating sensor FBG2, the third fiber-optic grating sensor FBG3 midpoint where plane, with
It is parallel perpendicular to the longitudinal section of 30 axis of railroad track to be measured on railroad track 30 to be measured.
By the first fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, the third optical fiber light
When gate sensor FBG3 is mounted on railroad track to be measured, first have to choose each sensor institute railroad track to be measured to be mounted
Position and railroad track surface to be measured of polishing, are pasted onto railroad track burnishing part to be measured for sensor, so that the first fiber grating
Sensor FBG1, the second fiber-optic grating sensor FBG2, the third fiber-optic grating sensor FBG3 and rail to be measured
The entire surface in road, which is pasted, fixes.
Optionally, due to after sensor to be pasted onto railroad track to be measured polishing, use glue with it is extraneous oneself
Right condition and aging occurs, so that viscosity is lost, therefore, in order to realize right first fiber-optic grating sensor FBG1, described second
The secured stickup of fiber-optic grating sensor FBG2, the third fiber-optic grating sensor FBG3, also by the first optical fiber light
The both ends of gate sensor, second fiber-optic grating sensor and the third fiber-optic grating sensor with the railway to be measured
It welds on the surface of track.
In addition, due to the first fiber-optic grating sensor, second fiber-optic grating sensor and the third fiber grating
The pad of sensor and railroad track to be measured is easy by extraneous rainwater, air oxidation, therefore, as shown in figure 3, can also be the
The both ends of one fiber-optic grating sensor, second fiber-optic grating sensor and the third fiber-optic grating sensor and it is described to
It surveys on the outside of the position of surface welding of railroad track, also sets up waterproof layer 40.
In the application, as shown in Figure 1, the first fiber-optic grating sensor FBG1 is for being mounted on the railroad track web of the rail to be measured；
The second fiber-optic grating sensor FBG2 is for being mounted on angle on railroad track rail bottom to be measured；The third optical fiber grating sensing
Device FBG3 is used to be mounted on the rail bottom center of railroad track to be measured.
When installation, the first fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, described the
The extending direction of the axis of the fibre core of three fiber-optic grating sensor FBG3, the axis extension side with the railroad track to be measured installed
To consistent.
Specifically, since in actual installation process, installation site has certain error, therefore generally by railway to be measured
The web of the rail of railroad track to be measured is all considered in rail web a certain range；In a certain range of railroad track rail bottom to be measured center all
It is considered the rail bottom of railroad track to be measured, and is all considered railroad track to be measured in a certain range of angle on railroad track rail bottom to be measured
Angle on rail bottom.
In another embodiment of the application, in order to realize to the first fiber-optic grating sensor FBG1, the second optical fiber light
The protection of gate sensor FBG2, the third fiber-optic grating sensor FBG3, it is various caused by avoiding in the long-term use
It is lost or causes the damage of sensor, it is shown in Figure 4, it can also be in first fiber-optic grating sensor, described second
Protection shell 50 is additionally provided on the outside of fiber-optic grating sensor and the third fiber-optic grating sensor.
In addition, implementing for the corresponding relationship established between railroad track strain and railroad track wheel rail force in the application
In example, further includes: jack (not shown)；
The jack is used to apply to the railroad track to be measured different size of target lateral power and different size of
Target longitudinal force；Such as the target lateral power F in Fig. 1 and Fig. 3lWith target longitudinal force Fv。
The first fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, the third optical fiber light
Gate sensor FBG3 is also used to apply different size of target lateral power and not to the railroad track to be measured in the jack
With size target longitudinal force when, obtain measurement data；
The processor 30 is also used to be passed according to the first fiber-optic grating sensor FBG1, second fiber grating
Sensor FBG2, the third fiber-optic grating sensor FBG3 apply different size to the railroad track to be measured in the jack
Target lateral power and different size of target longitudinal force when obtain measurement data, establish the first amendment strain, second amendment answer
Relationship of the variation not between cross force and longitudinal force.
In addition, in order to obtain the size of target lateral power and target longitudinal force that jack is applied, the embodiment of the present application
In the road wheel track Force system of offer further include: pressure sensor (not shown)；
The pressure sensor is arranged between the jack and the railroad track to be measured, in jack to institute
When stating the railroad track different size of target lateral power of application to be measured and different size of target longitudinal force, applied mesh is obtained
Mark the size of cross force and target longitudinal force.
The pressure sensor is also connected with dynamic collecting instrument (not shown)；
The dynamic collecting instrument is used to read the size of cross force and longitudinal force automatically from the pressure sensor.
Then processor 30 can be based on cross force and longitudinal force that dynamic collecting instrument is read and the first fiber grating
The measurement data that sensor, second fiber-optic grating sensor, the third fiber-optic grating sensor measure, establishes first and repairs
Normal strain, the second amendment strain the relationship between cross force and longitudinal force respectively.
After establishing the first amendment strain, the second amendment strain the relationship between cross force and longitudinal force respectively,
It can led to according to the first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor in train
The measurement data obtained when crossing the railroad track to be measured, and establish first amendment strain, second amendment strain respectively with
Relationship between cross force and longitudinal force calculates the wheel rail force of railroad track to be measured.
Shown in Figure 5, the embodiment of the present application two also provides a kind of railroad track wheel track force measuring method, and this method uses
Railroad track wheel track force measuring device provided by the embodiments of the present application, specifically includes:
S501: the first fiber-optic grating sensor, the second fiber-optic grating sensor and third fiber-optic grating sensor are obtained
The first round orbital measurement data that is obtained respectively when train passes through railroad track to be measured, the second wheel track measurement data and the
Three-wheel orbital measurement data.
Herein, the first fiber-optic grating sensor is for being mounted on the railroad track web of the rail to be measured；Second fiber-optic grating sensor
For being mounted on angle on railroad track rail bottom to be measured；Third fiber-optic grating sensor is used to be mounted on the rail bottom of railroad track to be measured
Center.
As shown in Figure 1, providing the first fiber-optic grating sensor of one kind, the second fiber-optic grating sensor and third optical fiber light
The specific installation example of gate sensor:
Using the center of the spaning middle section of railroad track to be measured as origin O, using the direction that cross force applies as x-axis, with
Coordinate system is established using the extending direction of railway railroad track to be measured as z-axis as the longitudinal axis in the direction that longitudinal force applies；From original
The distance of point O to rail bottom is c, and the distance from origin O to rail head is h.
First fiber-optic grating sensor FBG1 is mounted at the web of the rail of railroad track to be measured, and the axis and z-axis of fibre core are flat
Row, and x-axis passes through the axis of its fibre core；Second fiber-optic grating sensor FBG2 be mounted on rail bottom between angle, with x-axis away from
From for a, the distance between y-axis is b；Third fiber-optic grating sensor FBG3 is mounted on rail bottom, and the distance between x-axis is
c。
When train passes through railroad track to be measured, the wheel rail force applied to railroad track can be broken down into wheel track transverse direction
Power and wheel track longitudinal force.Wherein, the direction of wheel track cross force is the side where train, is applied towards the other side, etc.
The cross force F being same as in Fig. 1l。
When specific implementation, each fiber-optic grating sensor is connected with a fiber grating adjusting apparatus, when train passes through
When railroad track to be measured, generating active force to track can make track generate strain, at this moment paste three optical fiber light in orbit
Gate sensor can detect the strain of railroad track to be measured, obtain the first fiber-optic grating sensor, the second fiber-optic grating sensor
And third fiber-optic grating sensor obtained respectively when train passes through railroad track to be measured first round orbital measurement data, the
Two wheel track measurement data and third round orbital measurement data.
Herein, first round orbital measurement data, the second wheel track measurement data and third round orbital measurement data are
The first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor in above-described embodiment one to
Railroad track to be measured applies the measurement number obtained when different size of target lateral power and different size of target longitudinal force respectively
According to.
S502: according to first round orbital measurement data, the second wheel track measurement data and third round orbital measurement data,
Obtain the strain of first round orbital exponent and the amendment strain of the second wheel track；
When specific implementation, the first fiber-optic grating sensor setting is in the railroad track web of the rail to be measured, and its fibre core prolongs
It is consistent with the extending direction of track to be measured to stretch direction, cross force and longitudinal force generate the first fiber-optic grating sensor at this time
Strain be it is very small, measured by first round orbital measurement data reflect temperature change and cause track to be measured
It expands with heat and contract with cold and acts on the influence caused by the strain of railroad track to be measured.
Angle is arranged on railroad track rail bottom to be measured in second fiber-optic grating sensor, can be to its institute in addition to by temperature change
Outside the second wheel track measurement data that measurement obtains impacts, wheel track cross force and wheel track longitudinal force can all be caused it
It influences.
The setting of third fiber-optic grating sensor, can be to measured by it in addition to as temperature change in railroad track rail bottom to be measured
Outside obtained third round orbital measurement data impacts, only wheel track longitudinal force can impact it, and wheel track is lateral
Power influences negligible caused by it.
Therefore, by the second wheel track measurement data and third round orbital measurement data since temperature is to railroad track
After influence caused by strain excludes, remaining part is exactly that wheel track cross force and wheel track longitudinal force can all impact it
Part.
Therefore, here according to first round orbital measurement data, the second wheel track measurement data and third round orbit measurement
Data, when obtaining the strain of first round orbital exponent and the amendment strain of the second wheel track, first round orbital exponent strains reality just
It is that will influence the strain after excluding, the second wheel in the second wheel track measurement data caused by the strain of railroad track as temperature
Orbital exponent strain is practical be exactly by the second wheel track measurement data since temperature is influenced caused by the strain of railroad track
Strain after exclusion.
It specifically, can be by seeking the difference of the second wheel track measurement data and first round orbital measurement data, to obtain
The strain of first round orbital exponent；By seeking the difference of third round orbital measurement data and first round orbital measurement data, to obtain
The amendment strain of second wheel track.
S503: according to the strain of first round orbital exponent, the amendment strain of the second wheel track, and the first amendment obtained in advance
Strain, the second amendment strain the relationship between cross force and longitudinal force respectively, calculate train when passing through railroad track to be measured
The wheel track cross force and wheel track longitudinal force applied to railroad track to be measured.
When specific implementation, it is necessary first to obtain the first amendment strain, the second amendment strain respectively with cross force and vertical
To the relationship between power, then corrected according to this corresponding relationship and the strain of the first round orbital exponent of acquisition, the second wheel track
It is longitudinal to calculate wheel track cross force from railroad track to be measured to railroad track to be measured and wheel track that train applies when through for strain
Power.
Herein, fiber-optic grating sensor is made of the light sensitivity using optical fiber.When fiber grating local environment strain,
When temperature or other physical quantitys change, the period of grating or fiber core refractive index will change, to make the wave of reflected light
Length changes, and passes through the variation of reflected light wavelength before and after measurement physical quantity variation, so that it may obtain the variation of measured physical quantity
Situation.
First fiber-optic grating sensor FBG1, the second fiber-optic grating sensor FBG2, the third fiber grating pass
Sensor FBG3 can cause fiber-optic grating sensor deformation in the case where railroad track to be measured is applied the load such as external force and temperature, thus
React the strain variation of railroad track to be measured.The external force load applied in calibration process to railroad track to be measured, as to be measured
The cross force and longitudinal force that railroad track applies.
It is shown in Figure 6, the embodiment of the present application also provide it is a kind of obtain first amendment strain, second amendment strain respectively with
The specific method of relationship between cross force and longitudinal force.This method comprises:
S601: the first fiber-optic grating sensor, the second fiber-optic grating sensor and third fiber-optic grating sensor are obtained
It is obtained when applying different size of target lateral power and different size of target longitudinal force respectively to railroad track to be measured more
Group target measurement data；Every group of target measurement data include；First object measurement data, the second target measurement data and third
Target measurement data；
S602: it is obtained for every group of target measurement data according to first object measurement data and the second target measurement data
Take first object amendment strain；And it according to first object measurement data and third target measurement data, obtains the second target and repairs
Normal strain；
When specific implementation, when train acts on the span centre position of railroad track to be measured, railroad track to be measured by
Power situation is made as shown in fig. 7, using the center of the spaning middle section of railroad track to be measured as origin O with the direction that cross force applies
For x-axis, coordinate is established using the extending direction of railway railroad track to be measured as z-axis as the longitudinal axis in the direction applied using longitudinal force
System；Distance from origin O to rail bottom is c, and the distance from origin O to rail head is h.
Direct stress on spaning middle section at any point (x, y) along railroad track axial direction to be measured is by moment of flexure on the direction x, y
Mx、MyGenerated bending stressWithRailroad track to be measured (the rail of train to railroad track to be measured under the conditions of unbalance loading
The force position of head is not in rail head middle) torque TZGenerated torsional mode shapeAnd the additional stress under the variation of rail temperatureIt is composed, expression formula is (2):
Since FBG1 is near railroad track kernel of section to be measured, do not consider to paste error, it is assumed that make in moment of flexure and torque
Direct stress under is 0, then direct stress is (3) at the position FBG1:
In formula, FTFor rail track temperature power to be measured, A is railroad track area of section to be measured.It can by the visible FBG1 of above formula
Accurately to test out axial additional temp stress of the railroad track to be measured under temperature change.
On this basis, by FBG2 and FBG3, it can detect the strain of railroad track to be measured.It is each shown in referring to Fig.1
The paste position of fiber-optic grating sensor, is easy to get by the mechanics of materials, and direct stress is respectively (4) at FBG2 and FBG3:
In formula, Ix、IyRailroad track section respectively to be measured to the moment of inertia of x-axis and y-axis,With
By eccentric force bring torsional mode shape at angle and rail bottom center respectively on rail bottom.Occur in vertical, cross force inclined in various degree
When the heart, rail bottom position direct stress is smaller by torsion effect, and only small torsional mode shape generates, therefore can be not considered.
In summary, ignore torsional mode shape influence, and σ is individually subtracted from formula (4)1, obtain amendment stress σ '2And σ '3Such as formula (5):
First object amendment strain and the second mesh can be obtained divided by the Young's modulus E of railroad track to be measured simultaneously in formula (5)
Mark amendment strain, such as formula (6):
Wherein, ε1、ε2、ε3The strain value that respectively sensor FBG1, FBG2, FBG3 is directly monitored, i.e. first object
Measurement data, the second target measurement data and third target measurement data.Single span rail can be obtained by simply supported beam calculation of Bending Moment formula
Moment of flexure is formula (7) at span centre position:
It brings above formula (7) into formula (6) and obtains formula (8)
Formula (8) is the calculation formula of first object amendment strain and the amendment strain of the second target.
S603: according to the corresponding first object amendment strain of all target measurement data, the amendment strain of the second target, and
With the corresponding relationship between target lateral power size and target longitudinal force size, the first amendment strain, the second amendment strain are obtained
Linear relationship between cross force and longitudinal force respectively.
When specific implementation, formula (8) is arranged, available first amendment strain, the second amendment strain difference
Linear relationship formula between cross force and longitudinal force, such as formula (9).
Namely: formula (1)
Wherein: ε2' indicates the first amendment strain；ε3' indicates the second amendment strain；FvIndicate longitudinal force；FlIt indicates laterally
Power；A, B, C are fitting parameter.
According to the linear relationship formula (1), strain and the are corrected to the corresponding first object of all target measurement data
Two targets amendment strain and corresponding target lateral power and target longitudinal force progress linear fit, the first amendment of acquisition strain,
Second amendment strains the linear relationship between cross force and longitudinal force respectively.
Herein, strain and the amendment strain of the second target are corrected to the corresponding first object of all target measurement data, with
And corresponding target lateral power and target longitudinal force carry out linear fit, obtain the first amendment strain, the second amendment strain difference
The process of linear relationship between cross force and longitudinal force is the process solved to above-mentioned A, B, C fitting parameter.
Shown in Figure 7, the embodiment of the present application three also provides a kind of according to all target measurement data corresponding described
One target amendment strain, second target amendment strain, and with the target lateral power size and the target longitudinal force
Corresponding relationship between size obtains the first amendment strain, the second amendment strain line between cross force and longitudinal force respectively
The specific method of sexual intercourse:
S701: apply different size of target lateral power or target longitudinal force to railroad track to be measured；
Such as: multiple groups target lateral power or target longitudinal force are applied using the fixed jack pair rail head of special wirerope；And
To hang down, cross force multi-stage stairs are respectively set and are loaded, such as to hang down, cross force be respectively arranged Pyatyi step loaded it is (vertical
For 28.5kN, 46.8kN, 63.0kN, 84.8kN, 95.9kN；Laterally be 12.0kN, 25.3kN, 37.9kN, 50.7kN,
61.4kN).The placement force sensor between jack and rail head, can measure and apply stressed size.
S702: for target lateral power or target longitudinal force is applied to railroad track to be measured every time, pass through the first optical fiber
Grating sensor is sampled according to preset first sample frequency, the first data under sampling is obtained, by the equal of the first data
Value is used as first object measurement data；
When specific implementation, there is some difference for temperature when because of temperature when sensor is pasted and practical calibration, to exclude
Influence of the TEMPERATURE FORCE to calibration result, and the variation of temperature is more slow, therefore the comparison that the first sample frequency can be arranged
It is small, such as the first data that sampling in every 10 minutes is primary, under acquisition sampling are set by the first sample frequency of FBG1, by first
The mean value of data is as first object measurement data.
S703: by the second fiber-optic grating sensor and third fiber-optic grating sensor according to preset second sampling frequency
Rate synchronizes sampling, obtains the second data and third data under multiple repairing weld；
When specific implementation, to guarantee accuracy as high as possible, by bigger, the example of the second sample frequency setting
1kHz such as is set by the second sample frequency of FBG2 and FBG3, obtains the second data and third data under multiple repairing weld.
S704: the mean value of the second data under multiple repairing weld is obtained, and the mean value of the second data under multiple repairing weld is made
For the second target measurement data；
S705: the mean value of the third data under multiple repairing weld is obtained, and the mean value of the third data under multiple repairing weld is made
For third target measurement data.
The embodiment of the present application uses fiber-optic grating sensor as the main components of measurement；Fiber-optic grating sensor has
The advantages that detection sensitivity is high, precision is high, the service life is long, steady in a long-term, and be used to install by the first fiber-optic grating sensor respectively
In the railroad track web of the rail to be measured；Second fiber-optic grating sensor is for being mounted on angle on railroad track rail bottom to be measured；It is described
Third fiber-optic grating sensor is used to be mounted on the rail bottom center of railroad track to be measured.When measuring, first have to obtain
Take the first fiber-optic grating sensor, the second fiber-optic grating sensor and third fiber-optic grating sensor in train by iron to be measured
First round orbital measurement data, the second wheel track measurement data and the third round orbit measurement number obtained respectively when rail road
According to；Then according to first, second and third round orbital measurement data, the strain of first round orbital exponent and the second wheel track are obtained
Road amendment strain；According to the first, second wheel track correct strain, and obtain in advance first, second amendment strain respectively with
Relationship between cross force and longitudinal force calculates the wheel track that train applies when passing through railroad track to be measured to railroad track to be measured
Road cross force and longitudinal force.Using this railroad track wheel track force measuring method, the precision of track wheel rail force monitoring can be improved
And stability, realize the long-term dynamics monitoring of wheel rail force.
Based on the same inventive concept, it is additionally provided in the embodiment of the present application corresponding with railroad track wheel track force measuring method
Railroad track wheel track force measuring device, in the principle and the embodiment of the present application solved the problems, such as due to the device in the embodiment of the present application
It states that railroad track wheel track force measuring method is similar, therefore the implementation of device may refer to the implementation of method, it is no longer superfluous to repeat place
It states.
Shown in Figure 8, a kind of railroad track wheel track force measuring device that the embodiment of the present application four provides includes:
Applied to including the first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor
In railroad track wheel track force measuring device, wherein the first fiber-optic grating sensor is for being mounted on the railroad track web of the rail to be measured；Institute
The second fiber-optic grating sensor is stated for being mounted on angle on railroad track rail bottom to be measured；The third fiber-optic grating sensor is used for
It is mounted on the rail bottom center of railroad track to be measured, which includes:
Module 81 is obtained, for obtaining the first fiber-optic grating sensor, the second fiber-optic grating sensor and third optical fiber
Grating sensor train pass through the railroad track to be measured when obtain respectively first round orbital measurement data, the second wheel track
Measurement data and third round orbital measurement data；
First computing module 82, for according to the first round orbital measurement data, the second wheel track measurement data and
Third round orbital measurement data obtains the strain of first round orbital exponent and the amendment strain of the second wheel track；
Second computing module 83, for being strained according to first round orbital exponent strain, second wheel track amendment,
And the first amendment strain, the second amendment obtained in advance strains the relationship between cross force and longitudinal force respectively, calculates institute
It is vertical to state wheel track cross force from the railroad track to be measured to the railroad track to be measured and wheel track that train applies when through
Xiang Li.
Optionally, further includes: linear relationship obtains module 84；
The linear relationship obtains module 84, and for obtaining the first amendment strain by following methods, the second amendment strains
Linear relationship between cross force and longitudinal force respectively:
Obtain the first fiber-optic grating sensor, the second fiber-optic grating sensor and third fiber-optic grating sensor to
It surveys railroad track and applies the multiple groups target obtained when different size of target lateral power and different size of target longitudinal force respectively
Measurement data；Every group of target measurement data include；First object measurement data, the second target measurement data and third target are surveyed
Measure data；
For target measurement data described in every group, according to the first object measurement data and the second target measurement number
According to acquisition first object amendment strain；And it according to the first object measurement data and the third target measurement data, obtains
Take the amendment strain of the second target；
It is strained according to the corresponding first object amendment strain of all target measurement data, second target amendment,
And the corresponding relationship between the target lateral power size and the target longitudinal force size, the first amendment of acquisition strain,
Second amendment strains the linear relationship between cross force and longitudinal force respectively.
Optionally, the linear relationship obtains module 84, is specifically used for through following step according to all target measurement numbers
According to corresponding first object amendment strain, second target amendment strain, and with the target lateral power size and
Corresponding relationship between the target longitudinal force size, obtain first amendment strain, second amendment strain respectively with cross force and
Linear relationship between longitudinal force:
It is linear between cross force and longitudinal force respectively according to the first amendment strain, the second amendment strain that pre-establish
Relation formula, the first object amendment strain corresponding to all target measurement data and second target amendment are answered
Change and the corresponding target lateral power and the target longitudinal force progress linear fit, acquisition the first amendment strain,
Second amendment strains the linear relationship between cross force and longitudinal force respectively.
Optionally, the first amendment strain, the second amendment strain the linear pass between cross force and longitudinal force respectively
It is that formula meets following formula (1):
Wherein: ε '2Indicate the first amendment strain；ε′3Indicate the second amendment strain；FvIndicate longitudinal force；FlIt indicates laterally
Power；A, B, C are fitting parameter.
Optionally, the linear relationship obtains module 84, is specifically used for obtaining the first fiber grating biography by following step
Sensor, the second fiber-optic grating sensor and third fiber-optic grating sensor apply different big respectively when to railroad track to be measured
The multiple groups target measurement data obtained when small target lateral power and different size of target longitudinal force:
When applying different size of target lateral power or target longitudinal force to the railroad track to be measured, pass through described the
One fiber-optic grating sensor is sampled according to preset first sample frequency, is obtained the first data under sampling, is adopted described
The mean value of the first data under sample is as the first object measurement data；
And by second fiber-optic grating sensor and the third fiber-optic grating sensor according to preset
Two sample frequencys synchronize sampling, obtain the second data and third data under multiple repairing weld；
The mean value of the second data under multiple repairing weld is obtained, and using the mean value of the second data under multiple repairing weld as described in
Second target measurement data；
And obtain multiple repairing weld under third data mean value, and using the mean value of the third data under multiple repairing weld as
The third target measurement data.
Corresponding to the railroad track wheel track force measuring method in Fig. 5, the embodiment of the present application five additionally provides a kind of computer
Equipment, as shown in figure 9, the equipment includes memory 1000, processor 2000 and is stored on the memory 1000 and can be at this
The computer program run on processor 2000, wherein above-mentioned processor 2000 is realized above-mentioned when executing above-mentioned computer program
The step of railroad track wheel track force measuring method.
Specifically, above-mentioned memory 1000 and processor 2000 can be general memory and processor, not do here
It is specific to limit, when the computer program of 2000 run memory 1000 of processor storage, it is able to carry out above-mentioned railroad track wheel
Rail force measuring method, to solve in existing wheel rail force measuring technique using higher cost and use caused by on-road emission test method
The problems such as stability caused by electric resistance sensor method and poor reliability, so as to improve track wheel rail force monitoring precision and
Stability realizes the long-term dynamics monitoring of wheel rail force.
The embodiment of the present application provides a kind of nonvolatile computer storage media, and the computer storage medium is stored with
The railroad track wheel rail force in above-mentioned any means embodiment can be performed in computer executable instructions, the computer executable instructions
Measurement method.
Specifically, which can be general storage medium, such as mobile disk, hard disk, on the storage medium
Computer program when being run, be able to carry out above-mentioned railroad track wheel track force measuring method, surveyed to solve existing wheel rail force
Using higher cost caused by on-road emission test method and using stability caused by electric resistance sensor method and reliably in amount technology
Property it is poor the problems such as, so as to improve track wheel rail force monitoring precision and stability, realize wheel rail force long-term dynamics monitoring.
Railroad track wheel track force measuring device and the computer program product of system provided by the embodiment of the present application, including
The computer readable storage medium of program code is stored, the instruction that program code includes can be used for executing previous methods embodiment
In method, specific implementation can be found in embodiment of the method, details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
It with the specific work process of device, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.The apparatus embodiments described above are merely exemplary.
In all examples being illustrated and described herein, any occurrence should be construed as merely illustratively, without
It is as limitation, therefore, other examples of exemplary embodiment can have different values.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer-readable storage medium of a processor.Based on this understanding, the application
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the application
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application
Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, those skilled in the art should understand that: anyone skilled in the art
Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution, should all cover the protection in the application
Within the scope of.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of railroad track wheel track force measuring device characterized by comprising the first fiber-optic grating sensor, the second optical fiber
Grating sensor, third fiber-optic grating sensor and processor；
First fiber-optic grating sensor, second fiber-optic grating sensor, the third fiber-optic grating sensor with
The processor electrical connection；
Wherein first fiber-optic grating sensor is for being mounted on the railroad track web of the rail to be measured；
Second fiber-optic grating sensor is for being mounted on angle on railroad track rail bottom to be measured；
The third fiber-optic grating sensor is used to be mounted on the rail bottom center of railroad track to be measured；
The processor, for according to the first fiber-optic grating sensor, the second fiber-optic grating sensor, third optical fiber grating sensing
What device was obtained when applying different size of target lateral power and different size of target longitudinal force respectively to railroad track to be measured
Measurement data establishes the first amendment strain, the second amendment strain relationship between cross force and longitudinal force respectively, or
Passed through according to the first fiber-optic grating sensor, the second fiber-optic grating sensor, third fiber-optic grating sensor in train
The measurement data obtained when the railroad track to be measured, and establish first amendment strain, second amendment strain respectively with cross
To the relationship between power and longitudinal force, the wheel rail force of railroad track to be measured is calculated.
2. the apparatus according to claim 1, which is characterized in that the processor and first fiber-optic grating sensor,
Between second fiber-optic grating sensor and the third fiber-optic grating sensor, it is connected separately with a fiber grating tune
Xie Yi；
The fiber grating is reconciled instrument and is used for respectively by first fiber-optic grating sensor, second optical fiber grating sensing
The measurement data that device, the third fiber-optic grating sensor transmit is converted to electric signal by optical signal, and the electric signal is passed
Give processor.
3. a kind of railroad track wheel track force measuring system characterized by comprising railroad track as claimed in claim 1 or 2
Wheel track force measuring device, further includes: railroad track to be measured；
Wherein, first fiber-optic grating sensor is mounted on the railroad track web of the rail to be measured；Second fiber-optic grating sensor
It is mounted on angle on the railroad track rail bottom to be measured；Third fiber-optic grating sensor is mounted in the rail bottom of railroad track to be measured
The heart.
4. system according to claim 3, which is characterized in that first fiber-optic grating sensor, second optical fiber
Grating sensor and the third fiber-optic grating sensor are pasted with the railroad track entire surface to be measured and are fixed, and institute
State the both ends of the first fiber-optic grating sensor, second fiber-optic grating sensor and the third fiber-optic grating sensor with
It welds on the surface of the railroad track to be measured.
5. system according to claim 4, which is characterized in that first fiber-optic grating sensor, second optical fiber
Outside the position that the both ends of grating sensor and the third fiber-optic grating sensor and the surface of the railroad track to be measured are welded
Side is additionally provided with waterproof layer.
6. system according to claim 3, which is characterized in that first fiber-optic grating sensor, second optical fiber
The extension of the axis of the axis and railroad track to be measured of the fibre core of grating sensor and the third fiber-optic grating sensor
Direction is identical.
7. system according to claim 3, which is characterized in that first fiber-optic grating sensor, second optical fiber
Protection shell is additionally provided on the outside of grating sensor and the third fiber-optic grating sensor.
8. system according to claim 3, which is characterized in that further include: jack；
The jack is used to apply different size of target lateral power and different size of target to the railroad track to be measured
Longitudinal force；
First fiber-optic grating sensor, second fiber-optic grating sensor, the third fiber-optic grating sensor are also used
In applying different size of target lateral power and different size of target longitudinal force to the survey railroad track in the jack
When, obtain measurement data；
The processor is also used to according to first fiber-optic grating sensor, second fiber-optic grating sensor, described
Three fiber-optic grating sensors the jack to the survey railroad track apply different size of target lateral power with it is difference big
Obtain measurement data when small target longitudinal force, establish the first amendment strain, the second amendment strain respectively with cross force and longitudinal direction
Relationship between power.
9. system according to claim 8, which is characterized in that further include: pressure sensor；
The pressure sensor is arranged between the jack and the railroad track to be measured, for jack to it is described to
When surveying the railroad track different size of target lateral power of application and different size of target longitudinal force, it is horizontal to obtain applied target
To the size of power and target longitudinal force.
10. system according to claim 9, which is characterized in that the pressure sensor is also connected with dynamic collecting instrument；
The dynamic collecting instrument is used to read the size of cross force and longitudinal force automatically from the pressure sensor.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220627A (en) * | 2019-06-12 | 2019-09-10 | 中国神华能源股份有限公司 | Test device, test macro and the test method of wheel rail force |
| CN112697332A (en) * | 2020-12-31 | 2021-04-23 | 常州聚卓智能科技有限公司 | Rail transverse force sensor |
| CN113029407A (en) * | 2021-03-25 | 2021-06-25 | 北京康拓红外技术股份有限公司 | Ruler type wheel-rail force continuous measurement fiber bragg grating sensing device and arrangement method thereof |
-
2018
- 2018-07-20 CN CN201821164348.4U patent/CN208621213U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220627A (en) * | 2019-06-12 | 2019-09-10 | 中国神华能源股份有限公司 | Test device, test macro and the test method of wheel rail force |
| CN112697332A (en) * | 2020-12-31 | 2021-04-23 | 常州聚卓智能科技有限公司 | Rail transverse force sensor |
| CN113029407A (en) * | 2021-03-25 | 2021-06-25 | 北京康拓红外技术股份有限公司 | Ruler type wheel-rail force continuous measurement fiber bragg grating sensing device and arrangement method thereof |
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