CN109084922A - A method of linear motor vertical force is pushed away based on Continuous Wheel/Rail Force Measurement is counter - Google Patents
A method of linear motor vertical force is pushed away based on Continuous Wheel/Rail Force Measurement is counter Download PDFInfo
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- CN109084922A CN109084922A CN201810884336.7A CN201810884336A CN109084922A CN 109084922 A CN109084922 A CN 109084922A CN 201810884336 A CN201810884336 A CN 201810884336A CN 109084922 A CN109084922 A CN 109084922A
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- rail
- force
- measuring point
- wheel
- strain
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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
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- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A method of linear motor vertical force is pushed away based on Continuous Wheel/Rail Force Measurement is counter, choose a certain tablet section of track, first test the wheel rail force of no interaction force, re-test has the wheel rail force of active force, two kinds of measurement condition results subtract each other to obtain the amplitude of tablet attraction, the as vertical force of linear motor, specific steps, arrange that measuring point, measuring point are located at the web of the rail natural axis apart from span centre 150mm on the corresponding rail of tablet；It pastes foil gauge at each measuring point to be closed with silica gel, each measuring point web of the rail natural axis two sides respectively set two panels and are mutually perpendicular to, and the foil gauge with the longitudinal angle at 45 ° of rail；The assembling of test bridge is carried out to foil gauge；By the assembled bridge access strain Continuous Wheel/Rail Force Measurement System of each measuring point.Advantages of the present invention is embodied in, and be can be realized on the basis of the continuous detection of wheel rail force and then counter can be released the vertical force of straight line electric car, while can accurately measure the vertical force of the straight line electric car under not Energy velocity, as a result accurately.
Description
Technical field
The present invention relates to a kind of based on the anti-method for pushing away linear motor vertical force of Continuous Wheel/Rail Force Measurement.
Background technique
With quickly propelling for Process of Urbanization Construction, urban track traffic up to now has become the indispensable friendship of the mankind
Logical tool, the expansion of the sharp increase grade transportation demand of population, traffic problems become increasingly conspicuous, urban track traffic conduct
Fast, safety, comfortable, large conveying quantity, low energy consumption, of low pollution urban transportation tool, Feasibility of developing track transportation is to solve big city to hand over
One essential measure of topic of corresponding.But some problems are also gradually exposed.With the increase of urban track traffic freight volume, traveling
The fatigue of raising, the deterioration of running environment complexity and its growth of active time of speed, vehicle and track structure component is broken
Bad aggravation, seriously threatens the service life of railcar and route, not only increases the throwing of maintenance work, a large amount of manpower and material resources
Enter, serious challenge is also resulted in the safety of urban track traffic, stability, comfort and noise control etc..
Linear induction motor system is a kind of novel urban track traffic form, linear motor of the since the advent of the world by favor
Railcar has been abandoned using traditional rotating electric machine driving method, using between stator coil (primary) and reaction plate (secondary)
Electromagnetic interaction, directly offer electromagnetic traction/brake load, wheel is to only playing the role of support and guiding, this driving side
Formula is not sticked together by wheel track to be limited, different from the driving method of traditional rotating electric machine railcar.Linear motor traffic system is not
Traction power is obtained using linear motor using traditional rotating electric machine.It is envisioned that by traditional rotating electric machine from turn
Subcenter cuts to side and opens up directly, and such rotating electric machine just becomes linear motor.Or think, linear motor be radius without
Limit big rotating electric machine.At this moment the rotating excitation field in stator will become the magnetic field that moves linearly, and vehicle will be with linear motor magnetic field
Move and travel forward.Train in the process of running, tablet effect by longitudinal traction and vertical attraction simultaneously.
Because its magnetic circuit is complicated, non-linear strong, traditional Magnetic Circuit Method can not accurately calculate its electromagnetic field, and it is even more impossible to accurately calculate rectilinear point
The vertical force hit.
Summary of the invention
It is an object of the invention to provide a kind of based on the anti-method for pushing away linear motor vertical force of Continuous Wheel/Rail Force Measurement, should
Method can test every train and pass through true vertical force when route.
Of the invention is a kind of based on the anti-method for pushing away linear motor vertical force of Continuous Wheel/Rail Force Measurement, and the principle of use is,
The a certain tablet section of track to be chosen, first tests the wheel rail force of no interaction force, re-test has a wheel rail force of active force, and two kinds
Measurement condition result subtracts each other to obtain the amplitude of tablet attraction, the as vertical force of linear motor, specific method include with
Lower step:
1, arrange that measuring point, measuring point are located at the web of the rail natural axis apart from span centre 150mm on the corresponding rail of tablet；
2, it is polished with the two sides web of the rail of the sander to each measuring point and waypoint corresponding position, uses alcohol after having polished
Wiped clean；
3, after alcohol volatilization is dry, foil gauge is pasted at each measuring point, is closed after strain gauge adhesion with silica gel, measuring point is answered
To become piece method of attaching be that each measuring point web of the rail natural axis two sides respectively set two panels and are mutually perpendicular to, and longitudinally angle at 45 ° is answered with rail
Become piece；
4, the assembling of test bridge is carried out to the foil gauge of stickup；
5, by the assembled bridge access strain Continuous Wheel/Rail Force Measurement System of each measuring point, the acquisition of wheel track stress-strain is carried out；
6, after strain acquirement, by the strain inverting wheel rail force of acquisition；
7, the case where first testing no interaction force respectively, re-test have the case where active force, and two kinds of measurement condition results are subtracted each other
The amplitude of tablet attraction, the i.e. vertical force of straight line electric car can be obtained.
It is of the invention based on the anti-method for pushing away linear motor vertical force of Continuous Wheel/Rail Force Measurement, advantage is embodied in: can
It realizes on the basis of the continuous detection of wheel rail force and then counter can release the vertical force of straight line electric car, while can accurately measure
The not vertical force of the straight line electric car under Energy velocity, as a result accurately.
Detailed description of the invention
Fig. 1 is connection arrangement schematic diagram of the invention；
Fig. 2 is point position strain gauge adhesion schematic diagram of the invention；
Fig. 3 is point position group bridge conceptual scheme of the invention；
Fig. 4 is point position group bridge conceptual scheme of the invention；
1, rail, 2, fastener, 3, signal wire, 4, LabVIEW test macro, 5, PC machine, 6, test point.
Specific embodiment
A method of linear motor vertical force is pushed away based on Continuous Wheel/Rail Force Measurement is counter, is included the following steps, in tablet
Arrange that measuring point, measuring point are located at the web of the rail natural axis apart from span centre 150mm on corresponding rail；With sander to each measuring point with
And the two sides web of the rail of waypoint corresponding position is polished, it is clean with alcohol wipe after having polished；After alcohol volatilization is dry,
Foil gauge is pasted at each measuring point, is closed after strain gauge adhesion with silica gel, measuring point strain gauge adhesion method is each measuring point
Web of the rail natural axis two sides respectively set two panels and are mutually perpendicular to, and the foil gauge with the longitudinal angle at 45 ° of rail, with across rail on be arranged two
A measuring point, tetra- foil gauges of point layout A, B, E, a F, another arrangement tetra- foil gauge of C, D, G, H；Strain to stickup
Piece carries out the assembling of test bridge；By assembled bridge access strain Continuous Wheel/Rail Force Measurement System --- the LabVIEW of each measuring point
Test macro carries out the acquisition of wheel track stress-strain；After strain acquirement, by the strain inverting wheel rail force of acquisition；It first surveys respectively
The case where examination is without interaction force, re-test have the case where active force, and two kinds of measurement condition results, which are subtracted each other, can be obtained tablet suction
The amplitude of gravitation, the i.e. vertical force of straight line electric car.
Claims (1)
1. a kind of based on the anti-method for pushing away linear motor vertical force of Continuous Wheel/Rail Force Measurement, it is characterised in that: it includes following step
It is rapid:
(1), arrange that measuring point, measuring point are located at the web of the rail natural axis apart from span centre 150mm on the corresponding rail of tablet；
(2), it is polished with the two sides web of the rail of the sander to each measuring point and waypoint corresponding position, uses wine after having polished
Smart wiped clean；
(3), after alcohol volatilization is dry, foil gauge is pasted at each measuring point, is closed after strain gauge adhesion with silica gel, measuring point
Strain gauge adhesion method is that each measuring point web of the rail natural axis two sides respectively set two panels and are mutually perpendicular to, and with the longitudinal angle at 45 ° of rail
Foil gauge；
(4), the assembling of test bridge is carried out to the foil gauge of stickup；
(5), by the assembled bridge access strain Continuous Wheel/Rail Force Measurement System of each measuring point, the acquisition of wheel track stress-strain is carried out；
(6), after strain acquirement, by the strain inverting wheel rail force of acquisition；
(7), the case where first testing no interaction force respectively, re-test have the case where active force, two kinds of measurement condition result phases
Subtract the amplitude that tablet attraction can be obtained, the i.e. vertical force of straight line electric car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810884336.7A CN109084922A (en) | 2018-08-06 | 2018-08-06 | A method of linear motor vertical force is pushed away based on Continuous Wheel/Rail Force Measurement is counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810884336.7A CN109084922A (en) | 2018-08-06 | 2018-08-06 | A method of linear motor vertical force is pushed away based on Continuous Wheel/Rail Force Measurement is counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109084922A true CN109084922A (en) | 2018-12-25 |
Family
ID=64833881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810884336.7A Pending CN109084922A (en) | 2018-08-06 | 2018-08-06 | A method of linear motor vertical force is pushed away based on Continuous Wheel/Rail Force Measurement is counter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109084922A (en) |
Cited By (2)
| 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 |
| CN112229736A (en) * | 2020-12-14 | 2021-01-15 | 西南交通大学 | Wheel-rail force calibration device, method and system |
-
2018
- 2018-08-06 CN CN201810884336.7A patent/CN109084922A/en active Pending
Cited By (2)
| 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 |
| CN112229736A (en) * | 2020-12-14 | 2021-01-15 | 西南交通大学 | Wheel-rail force calibration device, method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181225 |
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| WD01 | Invention patent application deemed withdrawn after publication |