CN110530657A - A kind of horizontal force measuring method of wheel track and measuring system - Google Patents
A kind of horizontal force measuring method of wheel track and measuring system Download PDFInfo
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- CN110530657A CN110530657A CN201910910813.7A CN201910910813A CN110530657A CN 110530657 A CN110530657 A CN 110530657A CN 201910910813 A CN201910910813 A CN 201910910813A CN 110530657 A CN110530657 A CN 110530657A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 141
- 238000010008 shearing Methods 0.000 claims abstract description 79
- 238000000691 measurement method Methods 0.000 claims abstract description 4
- 241001669679 Eleotris Species 0.000 claims description 28
- 238000012544 monitoring process Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- BXLNWOAYQXBHCY-UHFFFAOYSA-N diphenylsilylidene(diphenyl)silane Chemical compound C1=CC=CC=C1[Si](C=1C=CC=CC=1)=[Si](C=1C=CC=CC=1)C1=CC=CC=C1 BXLNWOAYQXBHCY-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The embodiment of the invention discloses a kind of horizontal force measuring method of wheel track and measuring systems.The measurement method include: each horizontal force measurement point in acquisition unit surveying range wheel to the wheel of active force and each shearing force measurement point to active force；The wheel track horizontal force for acting on unit surveying range is calculated to active force to the wheel of active force and each shearing force measurement point according to the wheel of each horizontal force measurement point.In the embodiment of the present invention, by increasing constraint condition, division unit surveys area and is combined the horizontal force that each unit surveys area to obtain continuous wheel track horizontal force, realizes wheel track horizontal force follow-on test, improves the measuring accuracy of wheel track horizontal force.
Description
Technical field
The present invention relates to field of track traffic, the particularly horizontal force measuring method of wheel track and measuring system.
Background technique
With the continuous improvement of overall trip speed, rail vehicle operational safety is paid more and more attention.Pacify in rail vehicle ground
In full assessment, most directly, reliably method is the measurement of rail vehicle wheel track power, and especially wheel rail force continuously measures.
It is influenced since sleeper position of the fulcrum rail is strained by sleeper fastening restrained condition, it is difficult to which stabilization measures sleeper branch point
The wheel track horizontal force set.
For the assessment for realizing vehicle-state, the widely applied vehicle riding quality ground monitoring system (TPDS) in China is used
Dynamometry liner-plate method, by in-orbit occipital branches point installs backing plate sensor, according to the fulcrum horizontal force size that measures and comprehensive
Stressing influence line is closed, COMPREHENSIVE CALCULATING wheel is to horizontal force continuous in test section.But this method is due to economy etc.
It considers, dynamometry backing plate arrangement length is limited, therefore there is wheel and influence each other between the decline of boundary horizontal force measurement accuracy, wheel pair
Measurement problem.
Summary of the invention
The embodiment of the present invention provides a kind of horizontal force measuring method of wheel track and measuring system, to realize wheel track horizontal force ground
The measurement of long range Total continuity, improves the measuring accuracy of wheel track horizontal force.
The embodiment of the invention provides a kind of horizontal force measuring methods of wheel track, and wheel track includes rail and multiple sleepers, every
It is provided with horizontal force measurement point at a sleeper position of the fulcrum, shearing force measurement point, sleeper fulcrum are provided at rail span centre position
Position is the intersection position of sleeper and rail, and rail span centre position is located at the edge of rail upper surface, two neighboring shearing force measurement
Surveying range between point is a unit surveying range, and the spacing between two neighboring shearing force measurement point is less than monitoring vehicle
Minimum wheelbase；
Measurement method includes:
Wheel pair of the wheel of each horizontal force measurement point to active force and each shearing force measurement point in acquisition unit surveying range
Active force；
The wheel of active force and each shearing force measurement point is calculated and made to active force according to the wheel of each horizontal force measurement point
Used in the wheel track horizontal force of unit surveying range.
Based on the same inventive concept, the embodiment of the invention also provides a kind of horizontal force measuring systems of wheel track, comprising: shearing
Measuring unit, positioned at being provided at the rail span centre position of shearing force measurement point, for acquiring the wheel of shearing measurement point to active force；
Horizontal force measuring unit, positioned at the sleeper position of the fulcrum for being provided with horizontal force measurement point, sleeper position of the fulcrum is rail
The intersection position of pillow and rail, for acquiring the wheel of horizontal force measurement point to active force；And
Central control unit is connected with shearing force measurement unit and horizontal force measuring unit respectively by wired or wireless way
It connects, the wheel for horizontal force measurement point each in acquiring unit surveying range is to the wheel of active force and each shearing force measurement point to work
Firmly, further according to the wheel of each horizontal force measurement point to the wheel of active force and each shearing force measurement point to active force, calculate and make
Used in the wheel track horizontal force of unit surveying range.Wherein, two neighboring shearing force measurement unit and in-between horizontal force measuring unit
Component units surveying range.
In the embodiment of the present invention, horizontal force measurement point is set at each sleeper position of the fulcrum, at rail span centre position
Be arranged shearing force measurement point, and in acquisition unit surveying range each horizontal force measurement point wheel to active force and each shearing force measurement
The wheel of point is to active force, by increase constraint condition, division unit surveying range and by the wheel of each unit surveying range to effect
Power is combined to obtain continuous wheel track horizontal force, realizes wheel track horizontal force follow-on test, improves the survey of wheel track horizontal force
Try precision.
Detailed description of the invention
Fig. 1 is the flow diagram of the horizontal force measuring method of wheel track in the embodiment of the present invention one；
Fig. 2 is the wheel track horizontal force unit surveying range schematic illustration that the embodiment of the present invention one provides；
Fig. 3 is the single-wheel that provides of the embodiment of the present invention one to wheel track horizontal force surveying range schematic illustration；
Fig. 4 is the flow diagram of the horizontal force measuring method of another wheel track in the embodiment of the present invention two；
Fig. 5 is a kind of horizontal force measuring method of wheel track provided by Embodiment 2 of the present invention；
Fig. 6 is the wheel track horizontal force continuous measurement system structural schematic diagram that the embodiment of the present invention three provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is the flow diagram for the horizontal force measuring method of wheel track that the embodiment of the present invention one provides, as shown in Figure 1, wheel
The horizontal force measuring method of rail includes:
The wheel of each horizontal force measurement point is to active force and each shearing force measurement point in S110, acquisition unit surveying range
Wheel is to active force；
The wheel of horizontal force measurement point is wheel to the wheel by obtaining when horizontal force measurement point on surveying range to active force
To the power for acting on horizontal force measurement point, the wheel of shearing force measurement point is wheel to by the shearing force measurement on surveying range to active force
The wheel obtained when point is to the power for acting on shearing force measurement point.
S120, according to the wheel of each horizontal force measurement point to the wheel of active force and each shearing force measurement point to active force,
Calculate the wheel track horizontal force for acting on unit surveying range.
Wheel track horizontal force can be according to force balance principle, by the wheel of horizontal force measurement point to the wheel of active force and shearing force measurement point
Calculation of the force is obtained.
Fig. 2 wheel track horizontal force unit surveying range schematic illustration provided in an embodiment of the present invention, as shown in Fig. 2, wheel track
Including rail 10 and multiple sleepers 20, it is provided with horizontal force measurement point 30 at each 20 position of the fulcrum of sleeper, in rail span centre
Shearing force measurement point 40 is provided at position, sleeper position of the fulcrum is the intersection position of sleeper 20 and rail 10, rail span centre position
Positioned at the edge of rail upper surface, the surveying range between two neighboring shearing force measurement point 40 is a unit surveying range 50.
When one or more wheel is to when a unit surveying range 50 rolls, wheel is to the wheel track water acted on rail 10
Flat power is Qi, taking turns to the wheel for acting on the horizontal force measurement point 30 at each 20 position of the fulcrum of sleeper is H to active forcej, act on
The wheel of two shearing force measurement points 40 at one 50 rail of unit surveying range, 10 span centre position is q to active forcea、qb, according to power
Equilibrium principle obtains
Wherein, N is the quantity for acting on a unit surveying range wheel pair, and M is horizontal force in a unit surveying range
The number of measurement point.
Fig. 3 single-wheel provided in an embodiment of the present invention is to wheel track horizontal force unit surveying range schematic illustration, such as Fig. 3 institute
Show, the spacing d between two neighboring shearing force measurement point 40 is less than the minimum wheelbase x of monitoring vehicle.
Spacing d between two neighboring shearing force measurement point 40 is less than the minimum wheelbase x of monitoring vehicle, i.e. constraint condition is
D < min (x)
By the spacing d being arranged between two neighboring shearing force measurement point 40 be less than monitoring vehicle minimum wheelbase x this about
Beam condition ensure that only one is taken turns to active force in unit surveying range 50.When a wheel is in a unit surveying range
When 50 rolling, wheel is Q to the wheel track horizontal force acted on rail 10i, wheel is to acting at each 20 position of the fulcrum of sleeper
The wheel of horizontal force measurement point 30 is H to active force1、H2, act on two at 50 rail of unit surveying range, a 10 span centre position
The wheel of a shearing force measurement point 40 is q to active forcea、qb, according to force balance principle, obtain
Qi=H1+H2+qa+qb
It is less than this constraint of the minimum wheelbase of monitoring vehicle by the spacing being arranged between two neighboring shearing force measurement point 40
Condition, avoid in unit surveying range before front-wheel pair 1 wheel pair and after 1 wheel to surveying area in active cell to deserving front-wheel
Upper measurement has an impact, and solves the problems, such as that horizontal force Measured Boundary is unclear, influences each other, improves measuring accuracy.
The working principle of the horizontal force measuring method of the wheel track: wheel track is divided into multiple continuous unit surveying ranges, In
Horizontal force measurement point and shearing force measurement point are set on unit surveying range, wherein horizontal force measurement point is in each sleeper and rail
Intersection position, shearing force measurement point be located at rail top surface edge rail span centre position at.Pass through acquisition unit measurement zone
Between each horizontal force measurement point wheel to the wheel of active force and each shearing force measurement point to active force, computing unit measurement
The wheel track horizontal force in section.
The technical solution of the present embodiment, by each sleeper position of the fulcrum be arranged horizontal force measurement point, rail across
Shearing force measurement point is set at middle position, and in acquisition unit surveying range each horizontal force measurement point wheel to active force and each
The wheel of shearing force measurement point calculates wheel to acting on the wheel of unit surveying range to effect to active force, by increasing constraint condition
Power realizes the measurement of unit surveying range wheel track horizontal force, improves the measuring accuracy of wheel track horizontal force.
Based on the above technical solution, in unit surveying range 50 20 quantity of sleeper one or more.Unit measurement zone
Between 50 between two neighboring shearing force measurement point 40, and the spacing d of two neighboring shearing force measurement point 40 needs to be less than monitoring vehicle
Minimum wheelbase x, by the spacing d of two neighboring shearing force measurement point 40 need to be less than monitoring vehicle minimum wheelbase x this about
Beam condition, determine two shearing force measurement points 40 position, therefore 20 quantity of sleeper between two shearing force measurement points 40 with draw
The unit section divided is related.
Based on the above technical solution, the endpoint of two neighboring unit surveying range 50 can share shearing force measurement point
40.The endpoint of two neighboring unit surveying range 50 share shearing force measurement point 40 the advantages of this arrangement are as follows, two neighboring
The wheel track horizontal force for measuring different units surveying range 50 in unit surveying range 50 respectively, by each unit surveying range 50
Wheel track horizontal force combines to obtain the wheel track horizontal force of continuous surveying range, not only reduces the setting of shearing force measurement point and can
Obtain the wheel track horizontal force of continuous surveying range.
Embodiment two
Fig. 4 is the flow diagram of the horizontal force measuring method of another wheel track provided by Embodiment 2 of the present invention, shown in Fig. 4
Method be expansion on the basis of 1 method of embodiment, the method to explanatory diagram 1 also can be applied to the company of wheel track horizontal force
Continuous long range measurements, as shown in figure 4, the horizontal force measuring method of wheel track includes:
The wheel of each horizontal force measurement point is to active force and each shearing force measurement point in S110, acquisition unit surveying range
Wheel is to active force；
S120, according to the wheel of each horizontal force measurement point to the wheel of active force and each shearing force measurement point to active force,
Calculate the wheel track horizontal force for acting on unit surveying range.
S130, continuous surveying range include multiple adjacent unit surveying ranges, and calculating acts on continuous measurement zone
The wheel track horizontal force of interior each unit surveying range is combined to obtain the wheel track horizontal force of continuous surveying range.
According to the wheel track horizontal force for the unit surveying range being calculated, the wheel track that combination obtains continuous surveying range is horizontal
Power.
Illustratively, as shown in figure 5, being a kind of horizontal force measuring method of wheel track provided by Embodiment 2 of the present invention, Fig. 5
In, two continuous unit surveying range S1 and S2, taking turns to the wheel track horizontal force for acting on unit surveying range S1 is Q1, wheel pair
The wheel of the horizontal force measurement point 30 acted at 20 position of the fulcrum of each sleeper of unit surveying range S1 is respectively to active force
H1And H2, the wheel of the two shearing force measurement points 40 acted at the 10 span centre position of rail of unit surveying range S1 is to active force
qaAnd qb.Taking turns to the wheel track horizontal force for acting on unit surveying range S2 is Q2, wheel is to acting on each of unit surveying range S2
The wheel of horizontal force measurement point 30 at 20 position of the fulcrum of sleeper is respectively H to active force3And H4, act on unit surveying range S2
10 span centre position of rail at two shearing force measurement points 40 wheel to active force be qbAnd qc, i.e. unit surveying range S1 and list
First surveying range S2 shares shearing force measurement point b point, and the wheel of unit surveying range S1 and unit surveying range S2 measurement point b point is to work
It is firmly qb。
The then wheel track horizontal force Q of unit surveying range S11:
Q1=qa+qb+H1+H2
The then wheel track horizontal force Q of unit surveying range S22:
Q2=qb+qc+H3+H4
It then can get the wheel track horizontal force of any time of the continuous surveying range of the composition of two unit surveying ranges.
The technical solution of the present embodiment, the wheel track horizontal force measured by assembled unit surveying range obtain continuous measurement zone
Between wheel track horizontal force, realize wheel track horizontal force long range Total continuity measurement, be rail vehicle especially high speed passenger train
Assessment, the detection of dynamic performance test, research and safety effective means are provided, have a good application prospect.
Embodiment 3
Fig. 6 is the wheel track horizontal force continuous measurement system structural schematic diagram that the embodiment of the present invention three provides, as shown in fig. 6,
Measuring system includes shearing force measurement unit 1, positioned at being provided at the rail span centre position of shearing force measurement point, is surveyed for acquiring shearing
The wheel of point is measured to active force；
Horizontal force measuring unit 2, positioned at the sleeper position of the fulcrum for being provided with horizontal force measurement point, sleeper position of the fulcrum is rail
The intersection position of pillow and rail, for acquiring the wheel of horizontal force measurement point to active force；And
Central control unit 3 is connected with shearing force measurement unit and horizontal force measuring unit respectively by wired or wireless way
It connects, the wheel for horizontal force measurement point each in acquiring unit surveying range is to the wheel of active force and each shearing force measurement point to work
Firmly, further according to the wheel of each horizontal force measurement point to the wheel of active force and each shearing force measurement point to active force, calculate and make
Used in the wheel track horizontal force of unit surveying range.Wherein, two neighboring shearing force measurement unit and in-between horizontal force measuring unit
Component units surveying range.
Optionally, sensor module may be selected in shearing force measurement unit 1 and horizontal force measuring unit 2, for measuring wheel to logical
The wheel of shearing force measurement unit 1 and horizontal force measuring unit 2 is crossed to active force.
The working principle of the horizontal force measuring system of the wheel track: shearing force measurement unit is controlled by wired or wireless way and center
Unit connection processed, for acquiring the wheel of shearing measurement point to active force and being transmitted to central control unit, horizontal force measurement point is adopted
The wheel for collecting horizontal force measurement point is connect to active force and by wired or wireless way with central control unit, central control unit
By the wheel of the shearing force measurement point of acquisition to the wheel of active force and horizontal force measurement point to Calculation of the force unit surveying range
Wheel track horizontal force.
The technical solution of the present embodiment, central control unit by wired or wireless way respectively with shearing force measurement unit and
Horizontal force measuring unit connects the wheel for obtaining horizontal force measurement point to the wheel of active force and each shearing force measurement point to active force, and
Calculate the wheel of the horizontal force measurement point obtained to the wheel of active force and shearing force measurement point to active force unit surveying range wheel
Rail horizontal force is, it can be achieved that the real-time monitoring of wheel track horizontal force and assess rail vehicle performance.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (9)
1. a kind of horizontal force measuring method of wheel track, which is characterized in that the wheel track includes rail and multiple sleepers, in each sleeper
It is provided with horizontal force measurement point at position of the fulcrum, shearing force measurement point, the sleeper branch point are provided at rail span centre position
It is set to the intersection position of the sleeper Yu the rail, rail span centre position is located at the edge of the rail upper surface, phase
Surveying range between adjacent two shearing force measurement points is a unit surveying range, the two neighboring shearing force measurement point it
Between spacing be less than monitoring vehicle minimum wheelbase；
The measurement method includes:
The wheel of each horizontal force measurement point in the unit surveying range is acquired to active force and each shearing force measurement
The wheel of point is to active force；
According to the wheel of each horizontal force measurement point to the wheel of active force and each shearing force measurement point to active force, meter
It can be regarded as the wheel track horizontal force used in the unit surveying range.
2. the horizontal force measuring method of wheel track according to claim 1, which is characterized in that further include continuous surveying range, institute
Stating continuous surveying range includes multiple adjacent unit surveying ranges；
The measurement method further include: calculate the wheel track for acting on each unit surveying range in the continuous surveying range
Horizontal force is combined to obtain the wheel track horizontal force of the continuous surveying range.
3. the horizontal force measuring method of wheel track according to claim 1, which is characterized in that described in the unit surveying range
Sleeper quantity can be one or more.
4. the horizontal force measuring method of wheel track according to claim 1, which is characterized in that the two neighboring unit measurement zone
Between endpoint share the shearing force measurement point.
5. the horizontal force measuring method of wheel track according to claim 1, which is characterized in that the shearing force measurement point is located at
The inner side and outer side at the edge of the rail upper surface.
6. a kind of horizontal force measuring system of wheel track characterized by comprising
Shearing force measurement unit, positioned at being provided at the rail span centre position of shearing force measurement point, for acquiring the shearing force measurement point
Wheel to active force；
Horizontal force measuring unit, positioned at the sleeper position of the fulcrum for being provided with horizontal force measurement point, the sleeper position of the fulcrum is rail
The intersection position of pillow and rail, for acquiring the wheel of the horizontal force measurement point to active force；And
Central control unit, by wired or wireless way respectively with the shearing force measurement unit and the horizontal force measuring unit
Connection, the wheel for the horizontal force measurement point each in acquiring unit surveying range is to active force and each shearing force measurement
The wheel of point to active force, further according to each horizontal force measurement point wheel to active force and each shearing force measurement point
Wheel calculates the wheel track horizontal force for acting on the unit surveying range to active force.Wherein, the two neighboring shearing force measurement list
First to constitute the unit surveying range with in-between horizontal force measuring unit, the unit surveying range length is less than monitoring vehicle
Minimum wheelbase.
7. the horizontal force measuring system of wheel track according to claim 6, which is characterized in that further include continuous surveying range, institute
Stating continuous surveying range includes multiple adjacent unit surveying ranges；
The measuring system further include: calculate the wheel track for acting on each unit surveying range in the continuous surveying range
Horizontal force is combined to obtain the wheel track horizontal force of the continuous surveying range.
8. the horizontal force measuring system of wheel track according to claim 7, which is characterized in that the two neighboring unit measurement zone
Between endpoint share the shearing force measurement unit.
9. the horizontal force measuring system of wheel track according to claim 6, which is characterized in that the shearing force measurement unit distinguishes position
In the inner side and outer side at the edge of the rail upper surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910910813.7A CN110530657B (en) | 2019-09-25 | 2019-09-25 | Wheel track horizontal force measuring method and measuring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910910813.7A CN110530657B (en) | 2019-09-25 | 2019-09-25 | Wheel track horizontal force measuring method and measuring system |
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| CN110530657B CN110530657B (en) | 2024-04-30 |
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| CN102072789A (en) * | 2010-11-03 | 2011-05-25 | 西南交通大学 | Method for continuously processing wheel-track force of track vehicle by means of ground test |
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| DE102017002887A1 (en) * | 2016-03-26 | 2017-10-12 | Stefan Pindera | Method and system for measuring forces, in particular force Y acting on a railroad track |
| CN107532960A (en) * | 2015-04-28 | 2018-01-02 | 中国铁道科学研究院 | A kind of wheel track vertical force ground Total continuity measuring method and system |
| 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 |
| CN210774735U (en) * | 2019-09-25 | 2020-06-16 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Wheel rail horizontal force measuring system |
-
2019
- 2019-09-25 CN CN201910910813.7A patent/CN110530657B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571432A (en) * | 2009-06-08 | 2009-11-04 | 中国铁道科学研究院机车车辆研究所 | Wheel-rail vertical force continuous measurement method and device based on rail strain |
| CN102072789A (en) * | 2010-11-03 | 2011-05-25 | 西南交通大学 | Method for continuously processing wheel-track force of track vehicle by means of ground test |
| CN104359603A (en) * | 2014-10-31 | 2015-02-18 | 中国铁道科学研究院铁道建筑研究所 | Wheel rail movement vertical force continuous test method |
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| DE102017002887A1 (en) * | 2016-03-26 | 2017-10-12 | Stefan Pindera | Method and system for measuring forces, in particular force Y acting on a railroad track |
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