CN106840717A - Train wheel method for testing vibration based on axle box acceleration electromagnetism interference - Google Patents
Train wheel method for testing vibration based on axle box acceleration electromagnetism interference Download PDFInfo
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- CN106840717A CN106840717A CN201710027144.XA CN201710027144A CN106840717A CN 106840717 A CN106840717 A CN 106840717A CN 201710027144 A CN201710027144 A CN 201710027144A CN 106840717 A CN106840717 A CN 106840717A
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- 230000001133 acceleration Effects 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 230000010355 oscillation Effects 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036039 immunity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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- 238000000844 transformation Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- G01M17/10—Suspensions, axles or wheels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention discloses a kind of train wheel method for testing vibration based on axle box acceleration electromagnetism interference, it is made up of support flat board, rubber sleeve, radio speed sensor, Wireless Acceleration Sensor, wireless laser acceleration transducer, signal receiver, computer.Support flat board is enclosed within the end cap of Railway wheelset, sensor is each attached to support flat board upper and lower ends, unsteadiness of wheels coefficient during train driving is measured by sensor, is transmitted to receiver by mixed-media network modules mixed-media, computer finally gives variation relation of the Oscillating Coefficients with train running speed.The ELIMINATION OF ITS INTERFERENCE that may be subject to wireless senser using software and hardware combining, the method that becomes of being disappeared by small echo to vibration-testing data disappear becoming, and real-time monitoring is realized during train driving.The system architecture is simple, be easy to carry, simple to operate, convenient disassembly, measuring accuracy are high, analysis is accurate, it is adaptable to various passenger traffics, goods train.
Description
Technical field
It is particularly a kind of to be based on axle box acceleration electromagnetism interference the present invention relates to be used for train wheel contact vibration test
Train wheel method for testing vibration.
Background technology
In recent years, railway transportation develops towards high speed, heavy duty and high density direction, and dynamic action is significantly carried between promoting wheel track
Height, the period of change of track condition shortens, and causes unsteadiness of wheels to aggravate, vehicle ride comfort level reduction, so as to wheel
The monitoring of contact vibration proposes requirement higher with management and control.Guarantee of the test of wheel contact vibration for vehicle riding quality
Tool is of great significance.The equipment such as the commonly used sensor of test of wheel contact vibration, and working sensor or nothing
Line mixed-media network modules mixed-media is transmitted and can usually be subject to many interference, and such as electromagnetic induction interference, electrostatic induction interference, leakage current sensing is dry
Disturb, Radio frequency interference and other interference.These interference would generally influence the precision and transmission accuracy of sensor, cause actual observation record
The baseline drift of waveform.The influence of acceleration in test data to analysis result is very big, and especially data are integrated, this
It will be huge to plant influence, and double integrator can be just carried out after only carrying out disappearing to axle box acceleration signal, can just be obtained more
Unsteadiness of wheels state exactly.
Current unsteadiness of wheels detection technique has financial cost is high, system composition is complicated, anti-electromagnetic interference capability is weak etc.
Shortcoming.Therefore, in the urgent need to research and develop it is a kind of it is inexpensive, simple and direct efficiently, the unsteadiness of wheels measuring technology of electromagnetism interference with
Adapt to the fast-developing trend of railway traffic.
It is joined directly together in structure with wheel in view of axle box, will approx can be taken turns to regarding rigid body, axle box acceleration energy as
It is enough directly characterize take turns to vibrational state.Therefore the present invention tests wheel contact vibration state based on axle box acceleration.
The content of the invention
In order to overcome the shortcomings of described in above-mentioned background technology, the present invention provides a kind of anti-electromagnetism based on axle box acceleration and does
The train wheel method for testing vibration disturbed, supporting plane is passed through first with radio speed sensor and Wireless Acceleration Sensor
It is fixed on axle box end cap, obtains vertical vibration coefficient with the variation relation of train running speed, wireless laser acceleration is passed
Sensor on the basis of outer rail, obtains oscillation crosswise coefficient with the variation relation of train running speed, and then pass through using laser
Volume of data is drawn vibrational image by computer, by software and hardware combining as far as possible by disturbing that wireless senser may be subject to
Exclude, the method that becomes of disappearing finally by small echo to vibration-testing data disappear becoming.The system architecture is simple, easy to operate, dismounting side
Just, analyzing test data is accurate.
The technical solution adopted for the present invention to solve the technical problems include by support flat board, end cap, rubber sleeve, without linear speed
Degree sensor, Wireless Acceleration Sensor, wireless laser acceleration transducer, strong magnets, signal receiver, calculating unit
Into it is essentially characterized in that：Support flat board（2）It is enclosed within the end cap of train wheel wheel pair（3）On, radio speed sensor（5）With
Wireless Acceleration Sensor（6）It is placed on support flat board（2）On, wireless laser acceleration transducer（7）By packing ring and fastening spiral shell
Tether and be connected on support flat board（2）Lower part, above three sensor is by signal receiver（8）, signal receiver（8）
Transmit a signal to computer（9）.Electromagnetic interference is excluded using software and hardware combining, it is essentially characterized in that：Hardware aspect, uses
The power supply of high noise immunity, realizes the stabilization output of power supply, piezo-resistance in parallel；Software aspects, before timer is timed to,
CPU accesses a timer, allows timer to restart timing, and normal procedure operation, the timer will not produce overflow pulse,
Watchdog would not also work.Support flat board（2）Embedded rubber sleeve（4）It is enclosed within Railway wheelset with keeping flatbed horizontal
End cap（3）On with fastening bolt clamp, support plate diameter can be finely adjusted by fastening bolt.Radio speed sensor（5）
And Wireless Acceleration Sensor（6）Shell lower end is strong magnets, and absorption is in support flat board（2）On, support flat board（2）Lower part
There are a through hole, wireless laser acceleration transducer（7）It is fixed on through hole by packing ring and fastening bolt.Signal receiver
（8）And computer（9）It is placed in compartment, radio speed sensor（5）, Wireless Acceleration Sensor（6）With wireless laser plus
Velocity sensor（7）Signal receiver is transferred signals to using mixed-media network modules mixed-media（8）, signal receiver（8）Will by USB joint
Signal transmission is to computer（9）On.And oscillation crosswise signal vertical to axle box carries out wavelet transform, i.e., calculated using Mallat
Method, the frequency of signal is continuously dropped partly to be divided on different layers.Determine decomposition level, i.e., first signal is filtered again with phase
Low pass H, the high-pass filter G for answering carry out convolution；Approximation coefficient to this layer carries out pressure zero setting, and detail coefficients are maintained not
Become, and be reconstructed, reconstruct is exactly first to carry out dot interlace zero insertion, then carries out convolution with corresponding low pass h, high-pass filter g.To axle
Case acceleration signal carries out double integrator after carrying out disappearing, and obtains that suitable axle box is vertical and value of lateral displacement, so as to be arranged
Car wheel space contact vibration state.
The present invention has an advantageous effect in that compared with background technology：
（1）Radio speed sensor and Wireless Acceleration Sensor using strong magnetic suck support flat board on, convenient disassembly；
（2）Wireless laser acceleration transducer is fastened on support flat board lower section using bolt, is penetrated using laser and matched somebody with somebody on the outside of rail
Sum velocity sensor, obtains wheel oscillation crosswise coefficient with train running speed variation relation；
（3）Support flat board is enclosed within wheel opposite end and covers using rubber axle sleeve, and the support flat board diameter of axle is finely adjusted by fastening bolt, together
When serve it is locking；
（4）Using the mode of software and hardware combining, the present invention is effectively excluded in the various electromagnetic interferences that the course of work may be subject to.
（5）And transverse acceleration signal vertical to axle box carries out small echo and disappears carry out double integrator after method, obtains suitable
Axle box is vertical and lateral displacement, so as to obtain accurate train wheel space contact vibration state.
The unsteadiness of wheels detection method is simple to operate, convenient disassembly, measuring accuracy are high, and analysis is accurate, it is adaptable to various visitors
Fortune, goods train.
Brief description of the drawings
Fig. 1 is overall work schematic diagram of the invention.
Fig. 2 is the structural representation of support flat board of the invention.
Fig. 3 is that axle box of the invention is vertical and oscillation crosswise signal electromagnetism interference processing method schematic diagram.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples：
As shown in Figure 1, take turns right（1）, support flat board（2）, end cap（3）, rubber sleeve（4）, radio speed sensor（5）, it is wireless
Acceleration transducer（6）, wireless laser acceleration transducer（7）, signal receiver（8）, computer（9）, rail（10）.
As shown in Figure 2, flat board is supported（2）, rubber sleeve（4）, radio speed sensor（5）, Wireless Acceleration Sensor
（6）, wireless laser acceleration transducer（7）.
Flat board will be supported（2）By rubber sleeve（4）It is enclosed within Railway wheelset（1）End cap（3）On, will be propped up using fastening bolt
Support flat board（2）Planar water level land is fixed on end cap（3）On, by radio speed sensor（5）And Wireless Acceleration Sensor（6）
On utilizing powerful magnet for adsorption support flat board（2）Plane on.Signal receiver（8）And computer（9）It is placed on train to be measured
Passenger compartment, signal receiver（9）And computer（9）Connected by USB joint, radio speed sensor（5）With wireless acceleration
Degree sensor（6）Carried out data transmission by mixed-media network modules mixed-media.
Its operation principle is：Due to train in the process of running, hub for vehicle wheel is in and rotates and two kinds of motion synthesis of vibration
State, and be located at Railway wheelset（1）End cap（3）It is right in taking turns（1）Center of rotation position, do not rotated, its fortune
It is dynamic approximately to regard translation as, it is the optimal position of detection vibration.By radio speed sensor（5）Measurement train is in normal row
Real-time speed during sailing, will support flat board（2）It is enclosed within end cap（3）It is upper to cause support flat board（2）And end cap（3）Place is vertical
Direction Oscillating Coefficients with speed variation relation, wireless laser acceleration transducer（8）It is fixed on by packing ring and fastening bolt
Support flat board（2）Lower end, two sensorses are with rail（10）On the basis of outside, coordinate radio speed sensor（5）, measurement obtains
Extensional vibration coefficient with train running speed variation relation, by radio speed sensor（5）, Wireless Acceleration Sensor
（6）, wireless laser acceleration transducer（8）Vertical vibration coefficient, the oscillation crosswise coefficient for measuring, obtain influence train wheel and shake
Train wheel Oscillating Coefficients are transferred to signal receiver by dynamic coefficient correlation by mixed-media network modules mixed-media（8）, signal receiver（8）
The signal transmission that will be collected into by USB joint is to computer（9）, computer is to draw vibrorecord by software analysis signal
Picture.The exclusion of electromagnetic interference is realized using software and hardware combining.Hardware aspect, using the power supply of high noise immunity, realizes power supply
Stabilization output, piezo-resistance in parallel；Software aspects, before timer is timed to, CPU accesses a timer, allows timer
Restart timing, normal procedure operation, the timer will not produce overflow pulse, and watchdog would not also work.One
The interference of denier spike occurs in that " runaway protection ", then CPU would not access timer before being timed to, thus timing signal will go out
It is existing, so as to cause system reset to interrupt, it is ensured that intelligence instrument is returned on normal procedure.And oscillation crosswise signal vertical to axle box
Wavelet transform is carried out, i.e., using Mallat algorithms, the frequency of signal is continuously dropped partly to be divided on different layers.It is determined that point
Solution level, i.e., first signal is filtered carries out convolution with corresponding low pass H, high-pass filter G again；To the approximation coefficient of this layer
Carry out pressure zero setting, and detail coefficients remain unchanged, and be reconstructed, reconstruct is exactly first to carry out dot interlace zero insertion, then with it is corresponding
Low pass h, high-pass filter g carry out convolution.Double integrator is carried out after carrying out disappearing to axle box acceleration signal, suitable axle is obtained
Case is vertical and value of lateral displacement, so as to obtain train wheel space contact vibration state.
The present invention is exemplarily described above in conjunction with accompanying drawing, it is clear that the present invention is implemented and do not receive aforesaid way
Limitation, as long as employing method of the present invention design and the various transformations that carry out of technical scheme, or not improved direct application
In other occasions, within protection scope of the present invention.
Claims (5)
1. the train wheel method for testing vibration of axle box acceleration electromagnetism interference is based on, and its test equipment is by support flat board, end
Lid, rubber sleeve, radio speed sensor, Wireless Acceleration Sensor, wireless laser acceleration transducer, strong magnets, signal
Receiver, computer composition, it is essentially characterized in that：Support flat board（2）It is enclosed within the end cap of train wheel wheel pair（3）On, wirelessly
Velocity sensor（5）And Wireless Acceleration Sensor（6）It is placed on support flat board（2）On, wireless laser acceleration transducer（7）It is logical
Cross packing ring and fastening bolt is connected to support flat board（2）Lower part, above three sensor is by signal receiver
（8）, signal receiver（8）Transmit a signal to computer（9）, the radio speed sensor and Wireless Acceleration Sensor can
Dismounting, the support flat board can be finely adjusted locking.
2. the train wheel method for testing vibration of axle box acceleration electromagnetism interference, and oscillation crosswise signal vertical to axle box are based on
Wavelet transform is carried out, i.e., using Mallat algorithms, the frequency of signal is continuously dropped partly to be divided on different layers；It is determined that point
Solution level, i.e., first signal is filtered carries out convolution with corresponding low pass H, high-pass filter G again；To the approximation coefficient of this layer
Carry out pressure zero setting, and detail coefficients remain unchanged, and be reconstructed, reconstruct is exactly first to carry out dot interlace zero insertion, then with it is corresponding
Low pass h, high-pass filter g carry out convolution；Double integrator is carried out after carrying out disappearing to axle box acceleration signal, suitable axle is obtained
Case is vertical and value of lateral displacement, so as to obtain train wheel space contact vibration state.
3. the train wheel method for testing vibration based on axle box acceleration electromagnetism interference according to claim 1, it is special
Levy and be：Support flat board（2）Embedded rubber sleeve（4）It is enclosed within the end cap of Railway wheelset with keeping flatbed horizontal（3）It is upper to use fastening
Bolt is clamped, and support plate diameter can be finely adjusted by fastening bolt.
4. the train wheel method for testing vibration based on axle box acceleration electromagnetism interference according to claim 1, it is special
Levy and be：Radio speed sensor（5）And Wireless Acceleration Sensor（6）Shell lower end is strong magnets, and absorption is flat in support
Plate（2）On, support flat board（2）There is a through hole lower part, wireless laser acceleration transducer（7）By packing ring and fastening spiral shell
Bolt is fixed on through hole.
5. the train wheel method for testing vibration based on axle box acceleration electromagnetism interference according to claim 1, it is special
Levy and be：Signal receiver（8）And computer（9）It is placed in compartment, radio speed sensor（5）, radio acceleration sensing
Device（6）With wireless laser acceleration transducer（7）Signal receiver is transferred signals to using mixed-media network modules mixed-media（8）, signal reception
Device（8）By USB joint by signal in computer（9）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710027144.XA CN106840717B (en) | 2017-01-15 | 2017-01-15 | Train wheel vibration testing method based on axle box acceleration electromagnetic interference resistance |
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|---|---|---|---|
| CN201710027144.XA CN106840717B (en) | 2017-01-15 | 2017-01-15 | Train wheel vibration testing method based on axle box acceleration electromagnetic interference resistance |
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| CN106840717A true CN106840717A (en) | 2017-06-13 |
| CN106840717B CN106840717B (en) | 2024-03-29 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760359A (en) * | 2018-06-22 | 2018-11-06 | 常州西南交通大学轨道交通研究院 | A kind of roller-test platform being equipped with vertical electromagnetic exciter |
| CN111170103A (en) * | 2019-12-27 | 2020-05-19 | 猫岐智能科技（上海）有限公司 | Equipment fault identification method |
| WO2021128985A1 (en) * | 2019-12-27 | 2021-07-01 | 猫岐智能科技（上海）有限公司 | Device fault recognition systen and method |
| CN113155465A (en) * | 2021-04-22 | 2021-07-23 | 上海工程技术大学 | Portable subway traction motor bearing state detection device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760359A (en) * | 2018-06-22 | 2018-11-06 | 常州西南交通大学轨道交通研究院 | A kind of roller-test platform being equipped with vertical electromagnetic exciter |
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| CN111170103A (en) * | 2019-12-27 | 2020-05-19 | 猫岐智能科技（上海）有限公司 | Equipment fault identification method |
| WO2021128985A1 (en) * | 2019-12-27 | 2021-07-01 | 猫岐智能科技（上海）有限公司 | Device fault recognition systen and method |
| CN113155465A (en) * | 2021-04-22 | 2021-07-23 | 上海工程技术大学 | Portable subway traction motor bearing state detection device |
| CN113155465B (en) * | 2021-04-22 | 2022-06-21 | 上海工程技术大学 | Portable subway traction motor bearing state detection device |
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