CN109520756A - The test method and device of goods train vehicle safety - Google Patents
The test method and device of goods train vehicle safety Download PDFInfo
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- CN109520756A CN109520756A CN201811386507.XA CN201811386507A CN109520756A CN 109520756 A CN109520756 A CN 109520756A CN 201811386507 A CN201811386507 A CN 201811386507A CN 109520756 A CN109520756 A CN 109520756A
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- 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)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses the test methods and device of a kind of goods train vehicle safety.Wherein, this method comprises: target vehicle is placed on test platform, wherein target vehicle is the railway freight-car of pending security test, and test platform is for testing target vehicle；Generate the pumping signal tested target vehicle；It is acted using the actuator of pumping signal Control experiment platform, to trigger response data of each sensor acquisition target vehicle under the movement of actuator；Data determine safety of the target vehicle under different operating conditions according to response.The present invention solves in the related technology when carrying out the dynamic test of excitation route to goods train vehicle to obtain the safety of vehicle, the lower technical problem of efficiency.
Description
Technical field
The present invention relates to technical field of vehicle detection, in particular to a kind of test of goods train vehicle safety
Method and device.
Background technique
Rolling stock is easy in operation by route excitation and then generates vibration, and qualified vehicle is passing through excitation route
When generated vibratory response need to meet design requirement, guarantee the operational safety performance of vehicle, prevent vehicle structure from destroying, vehicle
It the generations of accidents such as derails or causes rail mobile.AAR M1001 standard C fascicle second part proposes progress in the Ⅺth chapter
Method, assessment content and the requirement of vehicle excitation route dynamic test, for assessing vehicle operational safety performance.But it is related
Vehicle to be assessed is sent to TTCI in skill to test, road is remote, and costly, the period is long.Vehicle of problems can be shifted to an earlier date
Scheme improvement is done, the percent of pass of vehicle authentication can be greatly improved, save testing expenses and shortens the test period.
The dynamic test of excitation route is carried out to obtain the peace of vehicle to goods train vehicle in the related technology for above-mentioned
When full property, the lower problem of efficiency, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides the test methods and device of a kind of goods train vehicle safety, at least to solve phase
In the technology of pass when carrying out the dynamic test of excitation route to goods train vehicle to obtain the safety of vehicle, efficiency is lower
Technical problem.
According to an aspect of an embodiment of the present invention, a kind of test method of goods train vehicle safety is provided, is wrapped
It including: target vehicle is placed on test platform, wherein the target vehicle is the railway freight-car of pending security test,
The test platform is for testing the target vehicle；Generate the pumping signal tested the target vehicle；
It is acted using the actuator that the pumping signal controls the test platform, acquires the target vehicle to trigger each sensor
Response data under the movement of the actuator；Determine the target vehicle under different operating conditions according to the response data
Safety.
Optionally, generating the pumping signal tested the target vehicle includes: to be obtained using MATLAB Software on Drawing
The time-domain signal of the trade shape run to the target vehicle；The time-domain signal is converted to the signal of predetermined format,
In, the signal of the predetermined format is the identifiable format of the test platform；Using the signal of the predetermined format as described in
Pumping signal.
Optionally, the time-domain signal that the trade shape of target vehicle operation is obtained using MATLAB Software on Drawing it
Before, the test method of the goods train vehicle safety further include: simulate to obtain the target vehicle fortune using MATLAB software
Capable trade shape, wherein the trade shape includes at least one of: the wavelength of the trade shape, the track shape
The amplitude of shape.
Optionally, the time-domain signal packet of the trade shape of the target vehicle operation is obtained using MATLAB Software on Drawing
It includes: setting the speed of service of the target vehicle；According to the speed of service and the corresponding wavelength of the trade shape, institute is determined
State target vehicle and the time-domain signal that generates when excitation route passed through with the speed of service, wherein the time-domain signal carry with
At least one lower information: the type of the excitation route, the speed of service of the target vehicle, excitation phase.
Optionally, the excitation route includes at least one of: horizontal irregularity route, longitudinal irregularity route, side
To irregularity route, wherein the horizontal irregularity route is to cause the target vehicle to generate the misconnection sidewindered and reversed to connect
The waveform phase of the route of header structure, corresponding two tracks of the horizontal irregularity route differs half period；The height
Irregularity route is to cause the target vehicle to generate to nod and the route of the parallel joint structure of sink-float, the longitudinal irregularity
The waveform phase of corresponding two tracks of route is consistent；The direction irregularity route is that the target vehicle is caused to generate
The waveform phase of the route shaken the head with sideway, corresponding two tracks of the direction irregularity route is consistent.
Optionally, the excitation phase includes at least one of: generated excitation when the horizontal irregularity route
Phase one, for the target vehicle by the horizontal irregularity route, the longitudinal irregularity route and the direction are uneven
When fair line road, excitation phase two of the difference wheel to generation.
It optionally, is described excitation phase a period of time in the excitation phase, simulation obtains the excitation phase of the target vehicle
Position includes: that the corresponding waveform of pumping signal of the vertical actuator for the two sides that control is loaded into the test platform differs half week
Phase, to simulate the horizontal irregularity route.
Optionally, when the excitation phase is the excitation phase two, simulation obtains the excitation phase of the target vehicle
Position comprises determining that the spacing and the speed of service of each wheel pair of the target vehicle；It is true according to the spacing and the speed of service
The time difference of the fixed pumping signal that corresponding actuator is inputted with the wheel of the target vehicle；According to the time difference to each wheel
Excitation waveform is inputted to corresponding vertical actuator and lateral actuator, to simulate the excitation phase of different wheel.
Optionally, it is acted using the actuator that the pumping signal controls the test platform, to trigger each sensor
Starting speed of service when acquiring response data of the target vehicle under the movement of the actuator is less than resonant speed, institute
Horizontal irregularity route is stated using 2 miles per hours as speed increment, the longitudinal irregularity route and the direction irregularity route
Using 5 miles per hours as speed increment.
Optionally, the horizontal irregularity route, the longitudinal irregularity route and the direction irregularity route
Maximum operational speed is 70 miles per hours.
Optionally, determine that safety of the target vehicle under different operating conditions includes: to utilize according to the response data
The response data determines characteristic of the target vehicle under different operating conditions, wherein the characteristic includes following
At least one: the car body maximum angle of roll of the target vehicle, the cross of the single wheel on the same axle of the target vehicle
The maximum value of the sum of the absolute value of Xiang Liyu vertical force ratio, minimum vertical load, acceleration dynamic increment and loaded vehicle spring
Maximum capacity, the ratio of the sum of cross force of bogie single wheel and the sum of the vertical force of the bogie single wheel is most
Big value.
Another aspect according to an embodiment of the present invention additionally provides a kind of test dress of goods train vehicle safety
It sets, comprising: processing unit, for target vehicle to be placed on test platform, wherein the target vehicle is pending safety
Property test railway freight-car, the test platform is for testing the target vehicle；Generation unit, for generating to institute
State the pumping signal that target vehicle is tested；Control unit, for controlling the test platform using the pumping signal
Actuator movement, acquires response data of the target vehicle under the movement of the actuator to trigger each sensor；Really
Order member, for determining safety of the target vehicle under different operating conditions according to the response data.
Optionally, the generation unit includes: acquisition module, for obtaining the target carriage using MATLAB Software on Drawing
Operation trade shape time-domain signal；Conversion module, for the time-domain signal to be converted to the signal of predetermined format,
In, the signal of the predetermined format is the identifiable format of the test platform；First determining module, for pre- fixing described
The signal of formula is as the pumping signal.
Optionally, the test device of the goods train vehicle safety further include: analog module, for utilizing
Before MATLAB Software on Drawing obtains the time-domain signal of the trade shape of the target vehicle operation, simulated using MATLAB software
Obtain the trade shape of the target vehicle operation, wherein the trade shape includes at least one of: the trade shape
Wavelength, the amplitude of the trade shape.
Optionally, the analog module includes: setting submodule, for setting the speed of service of the target vehicle；The
One determines submodule, for according to the speed of service and the corresponding wavelength of the trade shape, determine the target vehicle with
The speed of service passes through the time-domain signal that generates when excitation route, wherein the time-domain signal carries at least one of letter
Breath: the type of the excitation route, the speed of service of the target vehicle, excitation phase.
Optionally, the excitation route includes at least one of: horizontal irregularity route, longitudinal irregularity route, side
To irregularity route, wherein the horizontal irregularity route is to cause the target vehicle to generate the misconnection sidewindered and reversed to connect
The waveform phase of the route of header structure, corresponding two tracks of the horizontal irregularity route differs half period；The height
Irregularity route is to cause the target vehicle to generate to nod and the route of the parallel joint structure of sink-float, the longitudinal irregularity
The waveform phase of corresponding two tracks of route is consistent；The direction irregularity route is that the target vehicle is caused to generate
The waveform phase of the route shaken the head with sideway, corresponding two tracks of the direction irregularity route is consistent.
Optionally, the excitation phase includes at least one of: generated excitation when the horizontal irregularity route
Phase one, for the target vehicle by the horizontal irregularity route, the longitudinal irregularity route and the direction are uneven
When fair line road, excitation phase two of the difference wheel to generation.
Optionally, the analog module includes: control submodule, for being the excitation phase one in the excitation phase
When, control is loaded into the corresponding waveform difference half period of pumping signal of the vertical actuator of the two sides of the test platform,
To simulate the horizontal irregularity route.
Optionally, the analog module includes: the second determining submodule, for being the excitation phase in the excitation phase
When position two, the spacing and the speed of service of each wheel pair of the target vehicle are determined；Third determines submodule, between according to
Away from the time difference with the determining pumping signal inputted with the wheel of the target vehicle to corresponding actuator of the speed of service；Mould
Quasi- submodule, for inputting excitation wave to corresponding vertical actuator and lateral actuator to each wheel according to the time difference
Shape, to simulate the excitation phase of different wheel.
Optionally, it is acted using the actuator that the pumping signal controls the test platform, to trigger each sensor
Starting speed of service when acquiring response data of the target vehicle under the movement of the actuator is less than resonant speed, institute
Horizontal irregularity route is stated using 2 miles per hours as speed increment, the longitudinal irregularity route and the direction irregularity route
Using 5 miles per hours as speed increment.
Optionally, the horizontal irregularity route, the longitudinal irregularity route and the direction irregularity route
Maximum operational speed is 70 miles per hours.
Optionally, the determination unit includes: the second determining module, for determining the target using the response data
Characteristic of the vehicle under different operating conditions, wherein the characteristic includes at least one of: the vehicle of the target vehicle
The absolute value of the body maximum angle of roll, the cross force of the single wheel on the same axle of the target vehicle and vertical force ratio it
The maximum value of sum, minimum vertical load, acceleration dynamic increment and loaded vehicle spring maximum capacity, the cross of bogie single wheel
To the maximum value of the sum of power and the ratio of the sum of the vertical force of the bogie single wheel；Third determining module is used for basis
The characteristic determines safety of the target vehicle under different operating conditions.
Another aspect according to an embodiment of the present invention, additionally provides a kind of storage medium, the storage medium includes
The program of storage, wherein described program execute it is any one of above-mentioned described in goods train vehicle safety test method.
Another aspect according to an embodiment of the present invention, additionally provides a kind of processor, the processor is for running
Program, wherein described program run when execute it is any one of above-mentioned described in goods train vehicle safety test method.
In embodiments of the present invention, it is placed on test platform using by target vehicle, wherein target vehicle is pending
The railway freight-car of security test, test platform is for testing target vehicle；Then it generates and target vehicle is surveyed
The pumping signal of examination；The actuator movement of pumping signal Control experiment platform is recycled, to trigger each sensor acquisition target
Response data of the vehicle under the movement of actuator；And data determine safety of the target vehicle under different operating conditions according to response
Mode the certification to target vehicle, the test method of the goods train vehicle safety provided through the embodiment of the present invention are provided
The actuator that may be implemented on the pumping signal Control experiment platform according to establishment is acted to acquire response data, and according to response
Data determine that the target of safety of the target vehicle under different operating conditions has reached the percent of pass for greatly improving target vehicle certification,
It saves testing expenses and shortens the technical effect of test period, and then solve and carried out in the related technology to goods train vehicle
When the dynamic test of excitation route is to obtain the safety of vehicle, the lower technical problem of efficiency.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the test method of goods train vehicle safety according to an embodiment of the present invention；
Fig. 2 is target vehicle scheme of installation according to an embodiment of the present invention；
Fig. 3 is the schematic diagram of the corresponding trade shape of horizontal irregularity route according to an embodiment of the present invention；
Fig. 4 is the schematic diagram of the corresponding trade shape of longitudinal irregularity route according to an embodiment of the present invention；
Fig. 5 is the schematic diagram of the corresponding trade shape of irregularity route in direction according to an embodiment of the present invention；
Fig. 6 is schematic diagram of the wheel according to an embodiment of the present invention to spacing；
Fig. 7 a is the waveform of horizontal irregularity operating condition pumping signal according to an embodiment of the present invention and the signal of phase relation
Figure；
Fig. 7 b is the waveform of longitudinal irregularity operating condition pumping signal according to an embodiment of the present invention and the signal of phase relation
Figure；
Fig. 7 c is the waveform of irregularity operating condition pumping signal in direction according to an embodiment of the present invention and the signal of phase relation
Figure；
Fig. 8 is the flow chart of the test method of optional goods train vehicle safety according to an embodiment of the present invention；
Fig. 9 is the schematic diagram of the test device of goods train vehicle safety according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of the method for the test method of goods train vehicle safety is provided,
It should be noted that step shown in the flowchart of the accompanying drawings can be in the department of computer science of such as a group of computer-executable instructions
It is executed in system, although also, logical order is shown in flow charts, and it in some cases, can be to be different from herein
Sequence execute shown or described step.
Fig. 1 is the flow chart of the test method of goods train vehicle safety according to an embodiment of the present invention, such as Fig. 1 institute
Show, the test method of the goods train vehicle safety includes the following steps:
Step S102, target vehicle is placed on test platform, wherein target vehicle is pending security test
Railway freight-car, test platform is for testing target vehicle.
In step s 102, tested vehicle (i.e. above-mentioned target vehicle) can be mounted on test platform, specifically,
Target vehicle is mounted on the wheel of test platform in supporting beam, each wheel is to installing a wheel pair, target vehicle in supporting beam
Installation it is as shown in Figure 2, wherein Fig. 2 is target vehicle scheme of installation according to an embodiment of the present invention, as shown in Fig. 2, subject
Lorry (i.e. target vehicle) 1 is mounted on test platform, wherein is provided with vertical actuator 2 on the test platform and is laterally made
Dynamic device 4, and wheel are tested lorry 1 by being placed on test platform with wheel to supporting beam to supporting beam 3.
Step S104 generates the pumping signal tested target vehicle.
In step S104, with the speed of service of simulated target vehicle, trade shape and excitation phase and then it can work out
Pumping signal is obtained, which can trigger the actuator movement of test platform, to trigger each sensor acquisition mesh
Mark response data of the vehicle under actuator movement.
Wherein, above-mentioned each sensor may include: acceleration transducer, displacement sensor.Wherein, in complete vehicle curb condition
1 vertical acceleration sensor is being installed close to the floor upper surface at cartridge center as far as possible；When loaded vehicle state on the outside of cartridge,
It as close as possible on the central sill at cartridge edge, and to select the biggish position of central sill rigidity that 1 vertical acceleration sensor is installed, use
In the acceleration dynamic increment for calculating target vehicle.In addition, the installation position at 4 body springs of subject vehicle trailing or leading bogie
Displacement sensor measures the vertical relative displacement of body spring upper and lower end face, for calculating spring maximum capacity；In target vehicle one
Displacement sensor is installed at lower-edge beam position on the both ends of side, measures transverse direction absolute position of the car body relative to ground of target vehicle
It moves, to calculate the car body maximum angle of roll of target vehicle.Meanwhile in horizontal irregularity (reverse and sidewinder) and longitudinal irregularity
(nod and drift along) excitation test in, the leading axle of two bogies of target vehicle of subject or have single-axle bogie subject
Every axis of vehicle, should all install instrumented wheelset.In direction irregularity (shake the head and sideway) excitation test, estimate by test run
All axis of the worst bogie of bogie side L/V, or the every axis with single-axle bogie subject vehicle, are all answered
Instrumented wheelset is installed, for calculating the sum of axle L/V, minimum vertical load, the sum of bogie side L/V.
Step S106 is acted using the actuator of pumping signal Control experiment platform, to trigger each sensor acquisition mesh
Mark response data of the vehicle under the movement of actuator.
Step S108, data determine safety of the target vehicle under different operating conditions according to response.
Through the above steps, target vehicle can be placed on test platform, wherein target vehicle is pending safety
Property test railway freight-car, test platform is for testing target vehicle；Generate the excitation tested target vehicle
Signal；It is acted using the actuator of pumping signal Control experiment platform, to trigger each sensor acquisition target vehicle in actuation
Response data under the movement of device；Data determine safety of the target vehicle under different operating conditions according to response.Relative to correlation
Vehicle to be assessed is sent in technology and is tested elsewhere, road is remote, costly, the drawback of period length, through the invention
The test method for the goods train vehicle safety that embodiment provides may be implemented flat according to the pumping signal Control experiment of establishment
Actuator on platform is acted to acquire response data, and data determine safety of the target vehicle under different operating conditions according to response
Target reached greatly improve target vehicle certification percent of pass, save testing expenses and shorten the test period technology effect
Fruit, and then solve and the dynamic test of excitation route is being carried out to obtain the safety of vehicle to goods train vehicle in the related technology
When property, the lower technical problem of efficiency.
In step s 102, generating the pumping signal tested target vehicle may include: to utilize MATLAB software
It draws and obtains the time-domain signal of the trade shape of target vehicle operation；Time-domain signal is converted to the signal of predetermined format, wherein
The signal of predetermined format is the identifiable format of test platform；Using the signal of predetermined format as pumping signal.That is, above-mentioned excitation
Signal is carried out in the program of MATLAB software programming.
It wherein, should before obtaining the time-domain signal of trade shape of target vehicle operation using MATLAB Software on Drawing
The test method of goods train vehicle safety can also include: to simulate to obtain the rail of target vehicle operation using MATLAB software
Road shape, wherein trade shape includes at least one of: the wavelength of trade shape, the amplitude of trade shape.
Optionally, the time-domain signal that the trade shape of target vehicle operation is obtained using MATLAB Software on Drawing can wrap
It includes: setting the speed of service of target vehicle；According to the speed of service and the corresponding wavelength of trade shape, target vehicle is determined to run
Speed passes through the time-domain signal that generates when excitation route, wherein time-domain signal carries at least one of information: excitation route
Type, the speed of service of target vehicle, excitation phase.Therefore, the method for the speed of service of simulated target vehicle can be according to
The speed of service and track waveform wavelength of target vehicle calculate target vehicle and pass through generation when excitation route with the speed of service
Excited frequency, be set as the excited frequency of waveform in pumping signal to carry out exciting after above-mentioned calculated excited frequency real
It is existing.
For example, can program using MATLAB software according to the formula of description trade shape, trade shape can be drawn out
Time domain waveform, then the format that the Data Format Transform of time domain waveform signal is readable for testing platform system, can be used as working out
One of element of pumping signal.
Specifically, when vehicle passes through excitation route with the different speeds of service, different excited frequencies, exciting frequency can be generated
The relationship of rate and the speed of service isF indicates excited frequency, and ν indicates the speed of service, and λ indicates the wavelength of trade shape, can
According to the corresponding relationship of excited frequency and the speed of service, the frequency by changing waveform in pumping signal, which is realized, transports target vehicle
The simulation of scanning frequency degree.
Preferably, excitation route may include at least one of: horizontal irregularity route, longitudinal irregularity route, side
To irregularity route, wherein horizontal irregularity route is that target vehicle is caused to generate the misconnection joint structure for sidewindering and reversing
The waveform phase of route, corresponding two tracks of horizontal irregularity route differs half period；Longitudinal irregularity route is to cause
Target vehicle, which generates, nods and the route of the parallel joint structure of sink-float, the waveform of corresponding two tracks of longitudinal irregularity route
Phase is consistent；Direction irregularity route is that target vehicle is caused to generate the route shaken the head with sideway, direction irregularity route
The waveform phase of corresponding two tracks is consistent.
As a kind of optional embodiment, excitation phase may include at least one of: horizontal irregularity route when institute
The excitation phase one of generation, target vehicle pass through horizontal irregularity route, longitudinal irregularity route and direction irregularity route
When, excitation phase two of the difference wheel to generation.
It on one side, is excitation phase a period of time in excitation phase, the excitation phase that simulation obtains target vehicle may include:
Control is loaded into the corresponding waveform difference half period of pumping signal of the vertical actuator of the two sides of test platform, to simulate water
Flat irregularity route.That is, horizontal irregularity excitation route (that is, horizontal irregularity route) be cause target vehicle generation sidewinder and
The route of the misconnection joint structure of torsion, two track waveform phases differ half period, and Fig. 3 is according to an embodiment of the present invention
The schematic diagram of the corresponding trade shape of horizontal irregularity route, as shown in figure 3, the waveform phase of two tracks differs half week
Phase.Wherein, in Fig. 3 with wavelength be 39 feet, amplitude be 0.75 inch for.
It should be noted that can not only generate excitation phase one in horizontal irregularity excitation route, can also there be difference
Take turns the excitation phase two to generation.
Wherein, longitudinal irregularity excitation route (that is, longitudinal irregularity route) is that target vehicle generation is caused to nod and sink
The route of floating parallel joint structure, the phase of two tracks are consistent, specific as shown in figure 4, Fig. 4 is real according to the present invention
Apply the schematic diagram of the corresponding trade shape of longitudinal irregularity route of example.Similarly, in Fig. 4 with wavelength for 39 feet, amplitude is
For 0.75 inch.
In addition, direction irregularity excitation route (that is, direction irregularity route) is that target vehicle generation is caused to be shaken the head and horizontal
The not straight line path of pendulum, two track waveform phases are consistent, it is specific as shown in figure 5, Fig. 5 be direction according to an embodiment of the present invention not
The schematic diagram of the corresponding trade shape of smooth route.
For the route of above-mentioned three kinds different operating conditions, target vehicle is when through horizontal irregularity route operating condition, with root vehicle
There are excitation phases for axis two sides wheel, then can be loaded onto the vertical actuator excitation signal wave in test platform two sides by changing
Shape differs half period to realize the horizontal irregularity excitation route of analog waveform phase phase difference half period.
Another aspect, when excitation phase is excitation phase two, the excitation phase that simulation obtains target vehicle can be with
Comprise determining that the spacing and the speed of service of each wheel pair of target vehicle；According to spacing and speed of service determination and target vehicle
Take turns the time difference of the pumping signal inputted to corresponding actuator；According to the time difference to each wheel to corresponding vertical actuator and
Lateral actuator inputs excitation waveform, to simulate the excitation phase of different wheel.
For example, target vehicle by above-mentioned 3 operating conditions (that is, horizontal irregularity excitation route, longitudinal irregularity excitation line
Road and direction irregularity excitation route) excitation route when, to there is also excitation phase, difference wheel swashs difference wheel to corresponding
The time difference for disturbing the pumping signal that actuator is inputted can determine according to the spacing of each wheel pair and the speed of service.Fig. 6 is basis
The wheel of the embodiment of the present invention is to the schematic diagram of spacing, as shown in fig. 6, the spacing of 1 and 2 wheel pair is L1, between 1 and 3 wheel pair
It is L3 away from the spacing for L2,1 and 4 wheel pair, if the speed of service of target vehicle is v at this time, 2,3,4 wheels are to the opposite 1st
Position wheel pair time difference T1, T2, T3 determine as follows,During the test, may be used
Calculate the value of L1, L2, L3 according to target vehicle wheelbase, spacing, and according to the speed of service of target vehicle, calculate the 2nd, 3,
4 wheels successively take turns to the 1st to 4 to right load time difference T1, T2, T3 of opposite 1st wheel pair according to the time difference of calculating
The vertical actuator and lateral actuator input track answered compose excitation waveform to simulate the excitation phase of different wheel.
It is illustrated below according to the corresponding excitation signal waveforms of each axle wheel and phase relation, wherein Fig. 7 a is root
According to the waveform of the horizontal irregularity operating condition pumping signal of the embodiment of the present invention and the schematic diagram of phase relation, Fig. 7 b is according to this hair
The waveform of the longitudinal irregularity operating condition pumping signal of bright embodiment and the schematic diagram of phase relation, Fig. 7 c is to implement according to the present invention
The waveform of the direction irregularity operating condition pumping signal of example and the schematic diagram of phase relation.Specifically, Fig. 7 (a) to Fig. 7 (c) is base
In level, height and direction irregularity that the test method of goods train vehicle safety provided in an embodiment of the present invention is created
Operating condition, excited frequency are 0.5Hz (running velocity is about 13.3mph), corresponding 6 CYCLIC LOADINGs of each axle left and right wheels
Periodic excitation signal waveform shape and phase relation.
As a kind of optional embodiment, acted using the actuator of pumping signal Control experiment platform, it is each to trigger
Starting speed of service when sensor acquires response data of the target vehicle under the movement of actuator is less than resonant speed, horizontal
Using 2 miles per hours as speed increment, longitudinal irregularity route and direction irregularity route are irregularity route with 5 miles per hours
Speed increment.
Preferably, horizontal irregularity route, the maximum operational speed of longitudinal irregularity route and direction irregularity route
It is 70 miles per hours.
In addition, in order to enable the response data acquired under the action of pumping signal is more representative, that is, the sound acquired
Answer data more reasonable, the sample frequency of response data is not less than 200Hz, and low-pass filtering cutoff frequency is 15Hz.
For example, 10 responses can be acquired under the excitation of corresponding pumping signal in the case where the speed of service is 30 miles per hours
Data；Similarly, 10 responses can be acquired under the excitation of corresponding pumping signal in the case where the speed of service is 40 miles per hours
Data.
As a kind of optional embodiment, data determine that safety of the target vehicle under different operating conditions can be with according to response
Include: to determine characteristic of the target vehicle under different operating conditions using response data, wherein characteristic include it is following at least
One of: the car body maximum angle of roll of target vehicle, the cross force and vertical force of the single wheel on the same axle of target vehicle
The maximum value of the sum of the absolute value of ratio, minimum vertical load, acceleration dynamic increment and loaded vehicle spring maximum capacity turn to
The maximum value of the sum of cross force of frame single wheel and the ratio of the sum of the vertical force of bogie single wheel；According to characteristic
Determine safety of the target vehicle under different operating conditions.
For example, calculating the car body maximum angle of roll, the target of target vehicle using response data in horizontal irregularity route
The maximum value of the cross force of single wheel on the same axle of vehicle and the sum of the absolute value of vertical force ratio, i.e., maximum axle
The sum of L/V, minimum vertical load, acceleration dynamic increment and loaded vehicle spring maximum capacity；In longitudinal irregularity route, adopt
Minimum vertical load, acceleration dynamic increment and loaded vehicle spring maximum capacity are calculated with response data；In direction irregularity route
In, ratio of the sum of the cross force of bogie single wheel with the sum of the vertical force of bogie single wheel is calculated using response data
The sum of absolute value of the maximum value of value, the cross force of single wheel on the same axle of target vehicle and vertical force ratio is most
Big value.
Preferably, after obtaining above-mentioned each characteristic, it can be assessed, be assessed with reference to AAR M1001 standard
Content is as shown in table 1 with limit value.
Table 1
Wherein, a/ wave crest is to wave crest；B/ is not less than in 50 milliseconds of time and must not in the distance not less than 3 feet
Lower than shown limit value；C/ must not be higher than shown limit within the time not less than 50 milliseconds and in the distance not less than 3 feet
Angle value；D/ must not be higher than shown limit value on 6 feet of equivalent track length.
Fig. 8 is the flow chart of the test method of optional goods train vehicle safety according to an embodiment of the present invention, such as
Shown in Fig. 8, firstly, target vehicle is mounted on test platform, point layout is carried out (that is, in target vehicle to target vehicle
Different location installation response data acquire equipment, for example, sensor)；Then, to trade shape, the speed of service and excitation
Phase is simulated, and generates pumping signal based on analog result；Obtained pumping signal is loaded onto the actuation of test platform
Device is to carry out the acquisition of response data, then handles response data, and the safety according to processing result to target vehicle
It is assessed.
The test method of the goods train vehicle safety provided in through the embodiment of the present invention can be tired in railway freight-car
The function that simulation excitation route dynamic test is realized in labor and vibration mechine carries out formal excitation route dynamics in vehicle
The test method that rack can be used before test understands the performance state of certification vehicle in advance, prejudges the feasibility of design scheme, greatly
The big percent of pass for improving vehicle authentication highly shortened the test period of certification vehicle and reduce experimentation cost.And in platform
It is convenient to carry out the Comparability test research work of multi-scheme, multi-parameter on frame, understands the superiority and inferiority of each scheme, be railway freight-car
Security performance design provides technical support.
Embodiment 2
A kind of test device of goods train vehicle safety is additionally provided according to embodiments of the present invention, needs to illustrate
It is that the test device of the goods train vehicle safety of the embodiment of the present invention can be used for executing provided by the embodiment of the present invention
The test method of goods train vehicle safety.Below to the test of goods train vehicle safety provided in an embodiment of the present invention
Device is introduced.
Fig. 9 is the schematic diagram of the test device of goods train vehicle safety according to an embodiment of the present invention, such as Fig. 9 institute
Show, the test device of the goods train vehicle safety includes: processing unit 91, generation unit 93, control unit 95 and really
Order member 97.The test device of the goods train vehicle safety is described in detail below.
Processing unit 91, for target vehicle to be placed on test platform, wherein target vehicle is pending safety
The railway freight-car of test, test platform is for testing target vehicle.
Generation unit 93, for generating the pumping signal tested target vehicle.
Control unit 95, for being acted using the actuator of pumping signal Control experiment platform, to trigger each sensor
Acquire response data of the target vehicle under the movement of actuator.
Determination unit 97 determines safety of the target vehicle under different operating conditions for data according to response.
In this embodiment it is possible to using processing unit, for target vehicle to be placed on test platform, wherein mesh
The railway freight-car that vehicle is pending security test is marked, test platform is for testing target vehicle；Generation unit is used
In the pumping signal that target vehicle is tested in generation；Control unit, for the work using pumping signal Control experiment platform
Dynamic device movement, to trigger response data of each sensor acquisition target vehicle under the movement of actuator；Determination unit is used for
Data determine safety of the target vehicle under different operating conditions according to response.Relative to vehicle to be assessed is sent in the related technology
It is tested elsewhere, road is remote, costly, the drawback of period length, the railway freight-car vehicle provided through the embodiment of the present invention
The test device of safety may be implemented the actuator on the pumping signal Control experiment platform according to establishment and act to acquire
Response data, and data determine that the target of safety of the target vehicle under different operating conditions has reached and greatly improve mesh according to response
The percent of pass of vehicle authentication is marked, testing expenses are saved and shortens the technical effect of test period, and then is solved in the related technology
When carrying out the dynamic test of excitation route to goods train vehicle to obtain the safety of vehicle, the lower technology of efficiency is asked
Topic.
As a kind of optional embodiment, generation unit includes: acquisition module, for being obtained using MATLAB Software on Drawing
The time-domain signal of the trade shape of target vehicle operation；Conversion module, for time-domain signal to be converted to the signal of predetermined format,
Wherein, the signal of predetermined format is the identifiable format of test platform；First determining module, for making the signal of predetermined format
For pumping signal.
As a kind of optional embodiment, the test device of goods train vehicle safety further include: analog module is used for
Before obtaining the time-domain signal of trade shape of target vehicle operation using MATLAB Software on Drawing, MATLAB software mould is utilized
The quasi- trade shape for obtaining target vehicle operation, wherein trade shape includes at least one of: the wavelength of trade shape, rail
The amplitude of road shape.
As a kind of optional embodiment, analog module includes: setting submodule, for setting the operation speed of target vehicle
Degree；First determines submodule, for determining target vehicle with the speed of service according to the speed of service and the corresponding wavelength of trade shape
Pass through the time-domain signal generated when excitation route, wherein time-domain signal carries at least one of information: the class of excitation route
Type, the speed of service of target vehicle, excitation phase.
As a kind of optional embodiment, excitation route includes at least one of: horizontal irregularity route is uneven
Fair line road, direction irregularity route, wherein horizontal irregularity route is to cause target vehicle to generate the misconnection sidewindered and reversed to connect
The waveform phase of the route of header structure, corresponding two tracks of horizontal irregularity route differs half period；Be uneven fair line
Road is to cause target vehicle to generate to nod and the route of the parallel joint structure of sink-float, corresponding two rails of longitudinal irregularity route
The waveform phase in road is consistent；Direction irregularity route is that target vehicle is caused to generate the route shaken the head with sideway, and direction is not
The waveform phase of corresponding two tracks of smooth route is consistent.
As a kind of optional embodiment, excitation phase includes at least one of: produced when horizontal irregularity route
Excitation phase one, target vehicle pass through horizontal irregularity route, longitudinal irregularity route and direction irregularity route when, no
With wheel to the excitation phase two of generation.
As a kind of optional embodiment, analog module includes: control submodule, for being excitation phase in excitation phase
For the moment, control is loaded into the corresponding waveform difference half period of pumping signal of the vertical actuator of the two sides of test platform, with
Dummy level irregularity route.
As a kind of optional embodiment, analog module includes: the second determining submodule, for being excitation in excitation phase
When phase two, the spacing and the speed of service of each wheel pair of target vehicle are determined；Third determines submodule, for according to spacing and fortune
The time difference of the determining pumping signal that corresponding actuator is inputted with the wheel of target vehicle of scanning frequency degree；Simulation submodule is used for
Excitation waveform is inputted to corresponding vertical actuator and lateral actuator to each wheel according to the time difference, to simulate different wheel
Excitation phase.
As a kind of optional embodiment, acted using the actuator of pumping signal Control experiment platform, it is each to trigger
Starting speed of service when sensor acquires response data of the target vehicle under the movement of actuator is less than resonant speed, horizontal
Using 2 miles per hours as speed increment, longitudinal irregularity route and direction irregularity route are irregularity route with 5 miles per hours
Speed increment.
As a kind of optional embodiment, horizontal irregularity route, longitudinal irregularity route and direction irregularity route
Maximum operational speed be 70 miles per hours.
As a kind of optional embodiment, determination unit includes: the second determining module, for determining mesh using response data
Mark characteristic of the vehicle under different operating conditions, wherein characteristic includes at least one of: the car body of target vehicle is maximum
The maximum of the sum of the absolute value of the angle of roll, the cross force of the single wheel on the same axle of target vehicle and vertical force ratio
Value, minimum vertical load, acceleration dynamic increment and loaded vehicle spring maximum capacity, the sum of the cross force of bogie single wheel
With the maximum value of the ratio of the sum of the vertical force of bogie single wheel；Third determining module, for being determined according to characteristic
Safety of the target vehicle under different operating conditions.
The test device of above-mentioned goods train vehicle safety includes processor and memory, and above-mentioned processing unit 91 is raw
At unit 93, control unit 95 and determination unit 97 etc. are stored in memory as program unit, are executed by processor
Above procedure unit stored in memory realizes corresponding function.
Include kernel in above-mentioned processor, is gone in memory to transfer corresponding program unit by kernel.Kernel can be set
One or more, by adjusting kernel parameter, data determine safety of the target vehicle under different operating conditions according to response.
Above-mentioned memory may include the non-volatile memory in computer-readable medium, random access memory
(RAM) and/or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM), memory includes extremely
A few storage chip.
Another aspect according to an embodiment of the present invention, additionally provides a kind of storage medium, and storage medium includes storage
Program, wherein program executes the test method of any one of above-mentioned goods train vehicle safety.
Another aspect according to an embodiment of the present invention additionally provides a kind of processor, and processor is used to run program,
Wherein, the test method of any one of above-mentioned goods train vehicle safety is executed when program is run.
A kind of equipment is additionally provided in embodiments of the present invention, which includes processor, memory and be stored in storage
On device and the program that can run on a processor, processor perform the steps of when executing program target vehicle being placed on examination
It tests on platform, wherein target vehicle is the railway freight-car of pending security test, and test platform is used to carry out target vehicle
Test；Generate the pumping signal tested target vehicle；It is acted using the actuator of pumping signal Control experiment platform, with
Trigger response data of each sensor acquisition target vehicle under the movement of actuator；Data determine target vehicle according to response
Safety under different operating conditions.
A kind of computer program product is additionally provided in embodiments of the present invention, when being executed on data processing equipment,
It is adapted for carrying out the program of initialization there are as below methods step: target vehicle is placed on test platform, wherein target vehicle is
The railway freight-car of pending security test, test platform is for testing target vehicle；It generates and target vehicle is carried out
The pumping signal of test；It is acted using the actuator of pumping signal Control experiment platform, to trigger each sensor acquisition target
Response data of the vehicle under the movement of actuator；Data determine safety of the target vehicle under different operating conditions according to response.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (14)
1. a kind of test method of goods train vehicle safety characterized by comprising
Target vehicle is placed on test platform, wherein the target vehicle is the railway freight-car of pending security test,
The test platform is for testing the target vehicle；
Generate the pumping signal tested the target vehicle；
It is acted using the actuator that the pumping signal controls the test platform, acquires the target to trigger each sensor
Response data of the vehicle under the movement of the actuator；
Safety of the target vehicle under different operating conditions is determined according to the response data.
2. the method according to claim 1, wherein generating the pumping signal tested the target vehicle
Include:
The time-domain signal of the trade shape of the target vehicle operation is obtained using MATLAB Software on Drawing；
The time-domain signal is converted to the signal of predetermined format, wherein the signal of the predetermined format is the test platform
Identifiable format；
Using the signal of the predetermined format as the pumping signal.
3. according to the method described in claim 2, it is characterized in that, obtaining the target vehicle using MATLAB Software on Drawing
Before the time-domain signal of the trade shape of operation, further includes:
Simulate to obtain the trade shape of the target vehicle operation using MATLAB software, wherein the trade shape include with
It is at least one lower: the wavelength of the trade shape, the amplitude of the trade shape.
4. according to the method described in claim 2, being transported it is characterized in that, obtaining the target vehicle using MATLAB Software on Drawing
The time-domain signal of capable trade shape includes:
Set the speed of service of the target vehicle；
According to the speed of service and the corresponding wavelength of the trade shape, determine that the target vehicle is logical with the speed of service
The time-domain signal generated when crossing excitation route, wherein the time-domain signal carries at least one of information: the excitation route
Type, the speed of service of the target vehicle, excitation phase.
5. according to the method described in claim 4, it is characterized in that, the excitation route includes at least one of: level is not
Smooth route, longitudinal irregularity route, direction irregularity route, wherein the horizontal irregularity route is to cause the target
Vehicle generates the route of misconnection joint structure for sidewindering and reversing, the waveform of corresponding two tracks of the horizontal irregularity route
Phase phase difference half period；The longitudinal irregularity route is to cause the target vehicle to generate to nod and the parallel connector of sink-float
The waveform phase of the route of structure, corresponding two tracks of the longitudinal irregularity route is consistent；The direction irregularity
Route is that the target vehicle is caused to generate the route shaken the head with sideway, corresponding two tracks of the direction irregularity route
Waveform phase is consistent.
6. according to the method described in claim 5, it is characterized in that, the excitation phase includes at least one of: the water
Generated excitation phase one when flat irregularity route, the target vehicle pass through the horizontal irregularity route, the height
When irregularity route and the direction irregularity route, excitation phase two of the difference wheel to generation.
7. according to the method described in claim 6, it is characterized in that, being described excitation phase a period of time, mould in the excitation phase
The quasi- excitation phase for obtaining the target vehicle includes: swashing for the vertical actuator for the two sides that control is loaded into the test platform
The corresponding waveform difference half period of signal is encouraged, to simulate the horizontal irregularity route.
8. according to the method described in claim 6, it is characterized in that, the excitation phase be the excitation phase two when, mould
The quasi- excitation phase for obtaining the target vehicle includes:
Determine the spacing and the speed of service of each wheel pair of the target vehicle；
The excitation inputted with the wheel of the target vehicle to corresponding actuator is determined according to the spacing and the speed of service
The time difference of signal；
Excitation waveform is inputted to corresponding vertical actuator and lateral actuator to each wheel according to the time difference, to simulate not
With the excitation phase of wheel.
9. according to the method described in claim 5, it is characterized in that, controlling the work of the test platform using the pumping signal
Dynamic device movement, to trigger rising when each sensor acquires response data of the target vehicle under the movement of the actuator
The beginning speed of service is less than resonant speed, and the horizontal irregularity route is described to be uneven using 2 miles per hours as speed increment
Fair line road and the direction irregularity route are using 5 miles per hours as speed increment.
10. according to the method described in claim 5, it is characterized in that, the horizontal irregularity route, the fair line that is uneven
The maximum operational speed of road and the direction irregularity route is 70 miles per hours.
11. according to the method described in claim 5, it is characterized in that, determining that the target vehicle exists according to the response data
Safety under different operating conditions includes:
Characteristic of the target vehicle under different operating conditions is determined using the response data, wherein the characteristic
Including at least one of: the car body maximum angle of roll of the target vehicle, it is single on the same axle of the target vehicle
The maximum value of the sum of the absolute value of the cross force of wheel and vertical force ratio, minimum vertical load, acceleration dynamic increment and
Loaded vehicle spring maximum capacity, the sum of cross force of bogie single wheel and the sum of the vertical force of the bogie single wheel
The maximum value of ratio；
Safety of the target vehicle under different operating conditions is determined according to the characteristic.
12. a kind of test device of goods train vehicle safety characterized by comprising
Processing unit, for target vehicle to be placed on test platform, wherein the target vehicle is pending safety survey
The railway freight-car of examination, the test platform is for testing the target vehicle；
Generation unit, for generating the pumping signal tested the target vehicle；
Control unit, the actuator for being controlled the test platform using the pumping signal is acted, to trigger each sensing
Device acquires response data of the target vehicle under the movement of the actuator；
Determination unit, for determining safety of the target vehicle under different operating conditions according to the response data.
13. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein described program right of execution
Benefit require any one of 1 to 11 described in goods train vehicle safety test method.
14. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 11 described in goods train vehicle safety test method.
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