CN110274682A - A kind of detection method, device and the readable storage medium storing program for executing of track noise source - Google Patents
A kind of detection method, device and the readable storage medium storing program for executing of track noise source Download PDFInfo
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- CN110274682A CN110274682A CN201910546496.5A CN201910546496A CN110274682A CN 110274682 A CN110274682 A CN 110274682A CN 201910546496 A CN201910546496 A CN 201910546496A CN 110274682 A CN110274682 A CN 110274682A
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- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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Abstract
The present invention discloses detection method, device and the readable storage medium storing program for executing of a kind of track noise source, is related to signal processing technology field.A kind of detection method of track noise source includes: to carry out wheel-rail noise and bridge structure noise prediction to elevated guideway section to be detected, obtains vibratory response information, the vibratory response information of the vibratory response information of rail and bridge structure of the corresponding wheel in the aerial conveyor section to be detected；The vibratory response information of vibratory response information, the rail based on the wheel and the vibratory response information of bridge structure obtain the noise contours in the aerial conveyor section to be detected.After the noise contours for obtaining aerial conveyor section to be detected, the wheel-rail noise source in aerial conveyor section to be detected and the main distribution situation of bridge structure noise source can be determined according to the noise equivalence, and then corresponding vibration and noise reducing measure can be taken according to the noise source.
Description
Technical field
The present invention relates to signal processing technology fields, detection method, device in particular to a kind of track noise source
And readable storage medium storing program for executing.
Background technique
With the development of urban track traffic, since aerial conveyor route is built around residential block and Office Area, train
When running on aerial conveyor route, influence of noise surrounding user can be generated.In order to reduce noise, need to aerial conveyor route
Noise source identified.It is at present that noise is judged by spectrum analysis to the recognition methods of the noise source of aerial conveyor route
Frequency domain distribution, to deduce the noise source of aerial conveyor route indirectly.Therefore, the elevated rail that indirect supposition mode deduces
The noise source of Road may and actual aerial conveyor route there are deviations.
Summary of the invention
The application is to provide detection method, device and the readable storage medium storing program for executing of a kind of track noise source, accurately to detect
The noise source in aerial conveyor section.
To achieve the goals above, the embodiment of the present application is accomplished in that
The embodiment of the present application first aspect provides a kind of detection method of track noise source, comprising: to elevated rail to be detected
Road segment segment carries out wheel-rail noise and bridge structure noise prediction, obtains the vibration of the corresponding wheel in the aerial conveyor section to be detected
The vibratory response information of dynamic response information, the vibratory response information of rail and bridge structure；Vibratory response based on the wheel
The vibratory response information of information, the vibratory response information of the rail and the bridge structure obtains the elevated rail to be detected
The noise contours of road segment segment.
In the above scheme provided due to the embodiment of the present application first aspect, aerial conveyor section to be detected can obtained
Noise contours after, wheel-rail noise source and the bridge structure in aerial conveyor section to be detected are determined according to the noise contours
The main distribution situation of noise source, and then the technical effect for accurately detecting the noise source in aerial conveyor section may be implemented, in turn
Those skilled in the art are enabled to take corresponding vibration and noise reducing measure according to the noise source detected.
With reference to first aspect, the embodiment of the present application provides the first possible embodiment of first aspect, described to treat
It detects aerial conveyor section and carries out wheel-rail noise and bridge structure noise prediction, it is corresponding to obtain the aerial conveyor section to be detected
The vibratory response information of wheel, the vibratory response information of the vibratory response information of rail and bridge structure, comprising: obtain it is hard and soft
Coupling model calculates the wheel track force-responsive in the aerial conveyor section to be detected by Rigid-flexible Coupling Model；Wherein, described hard and soft
Coupling model is based on the numerical simulation model for needing the aerial conveyor section in detection noise source to establish；The Rigid-flexible Coupling Model
The geological information of geological information, rail including wheel and the geological information of bridge structure；According to the calculating of ANSYS spectrum analysis
The vibration of wheel track force-responsive, the vibratory response information, rail that obtain wheel corresponding with the aerial conveyor section to be detected is loud
Answer the vibratory response information of information and bridge structure.
Due to the embodiment of the present application provide first aspect the first possible embodiment in, can be by hard and soft
Coupling model carries out simulation calculation, restores the scene in the aerial conveyor section to be detected of train process, to obtain accurate
Wheel track force-responsive.Wheel track force-responsive is calculated further according to ANSYS spectrum analysis (for example, response spectrum analysis), can accurately obtain and arrange
Vehicle pass through aerial conveyor section to be detected when, the vibratory response information of train wheel, aerial conveyor section to be detected rail
Vibratory response information and aerial conveyor section to be detected bridge structure vibratory response information, and then ensure final detection
The noise source in aerial conveyor section out is accurate.
With reference to first aspect or the first possible implementation of first aspect, the embodiment of the present application provide first aspect
Second of possible embodiment, the vibratory response information based on the wheel, the vibratory response information of the rail
With the vibratory response information of the bridge structure, the noise contours in the aerial conveyor section to be detected is obtained, comprising: pass through
Presetting method is to the vibratory response information of the geological information of the wheel and the wheel, the geological information of the rail and described
The vibratory response information of rail and the vibratory response information of the geological information of the bridge structure and the bridge carry out noise
It calculates, obtains the spatial distribution of wheel-rail noise and the spatial distribution of bridge structure noise；According to the space of the wheel-rail noise point
The spatial distribution of cloth and the bridge structure noise, the sound pressure level for calculating and drawing wheel-rail noise and bridge structure noise are equal
Noise contours；Wherein, the noise contours is used to determine that the noise source in the aerial conveyor section to be detected to be the wheel
Rail noise or the bridge structure noise.
Since the sky of wheel-rail noise can be combined in second of possible embodiment of the embodiment of the present application first aspect
Between distribution and the spatial distribution of bridge structure noise, the maximum track noise section in aerial conveyor section can be chosen, at this
Accurately calculate the equal point of the sound pressure level of wheel-rail noise and bridge structure noise in track noise section, then by these sound pressure levels
Equal point is linked to be line (can be and connected with straight line, be also possible to curve connection), to draw noise contours.And then basis
The noise source that noise contours accurately detects aerial conveyor section is wheel-rail noise or bridge structure noise.It is intelligible, according to
Noise contours is capable of determining that the spatial distribution based on wheel-rail noise of aerial conveyor section surrounding space and with bridge
Spatial distribution based on structural noise.
With reference to first aspect or the first possible implementation of first aspect, the embodiment of the present application provide first aspect
The third possible embodiment, obtain Rigid-flexible Coupling Model, calculated by Rigid-flexible Coupling Model described to be detected overhead
Before the wheel track force-responsive of track section, the method also includes: track-bridge finite element mould is established in the ANSYS
Type, comprising: the rail model of timoshenko beam model, the shell unit model of track plates, the physical model of U-shaped beam bridge, fastener and
The damping unit model of vibration isolator；Finite element model based on the track-bridge establishes the Rigid-flexible Coupling Model.
It, can be by finite element analysis side due in the third possible embodiment of the embodiment of the present application first aspect
Method establishes track-bridge finite element model, to simulate the specific structure in aerial conveyor section to be detected.And then establish
Track-bridge finite element model is capable of providing the geological information of the geological information of the wheel for carrying out subsequent calculating, rail
With the geological information of bridge structure.
With reference to first aspect, in certain possible embodiments, the embodiment of the present application provides the 4th kind of first aspect
Possible embodiment, the method also includes: by the Rigid-flexible Coupling Model and/or the finite element mould of the track-bridge
The result of type and live field test compares, according to the result of the live field test in the Rigid-flexible Coupling Model
Parameter be adjusted, obtain optimized Rigid-flexible Coupling Model.
It is limited by track-bridge due in the 4th kind of possible embodiment of the embodiment of the present application first aspect
Meta-model can simulate and the consistent railway track in aerial conveyor section to be detected and bridge structure.Further, additionally it is possible to build
It is vertical consistent by sound point model with live field test.To by by Rigid-flexible Coupling Model and/or track-bridge finite element
The result of model and live field test compares, and then carries out parameter optimization appropriate.For example, adjustment timoshenko beam mould
The rail model of type, the shell unit model of track plates, the physical model of U-shaped beam bridge, the damping unit model of fastener and vibration isolator
One of or many kinds of parameters.And then it can more accurately simulate aerial conveyor section to be detected.Further, it is excellent to carry out parameter
Also the configuration mode for being more suitable for the vibration and noise reducing in aerial conveyor section to be detected can be studied when change, so as to consider and complete
The vibration and noise reducing in aerial conveyor section to be detected works.It is intelligible, pass through the result verification Coupled Rigid-flexible of live field test
The reliability of model and/or track-bridge finite element model.
With reference to first aspect, in certain possible embodiments, the embodiment of the present application provides the 5th kind of first aspect
Possible embodiment, after the noise contours for obtaining the aerial conveyor section to be detected, the method also includes: when
When the noise source determined based on the noise contours is the wheel-rail noise, obtains and push and be directed to the wheel-rail noise
Control measure scheme is to pre-set user；Wherein, the control measure scheme of the wheel-rail noise includes: steel rail grinding, wheel-rail friction
Management and increase rail damping.Due to that can allow pre- in the 5th kind of possible embodiment of the embodiment of the present application first aspect
If user learns the control measure scheme for the wheel-rail noise that aerial conveyor section to be detected needs to carry out, and then reaches and effectively subtract
Vibration noise reduction effect.
With reference to first aspect, in certain possible embodiments, the embodiment of the present application provides the 6th kind of first aspect
Possible embodiment, after the noise contours for obtaining the aerial conveyor section to be detected, the method also includes: when
When the noise source determined based on the noise contours is the bridge structure noise, obtains and push and be directed to the bridge knot
The control measure scheme of structure noise is to pre-set user；Wherein, the control measure scheme of the bridge structure noise includes: vibration damping button
Dynamic vibration absorber on part, floating plate railway roadbed and bridge.Due to the 6th kind of possible embodiment of the embodiment of the present application first aspect
In, the control measure scheme for the bridge structure noise that pre-set user can be allowed to learn that aerial conveyor section to be detected needs to carry out,
And then reach effective effect of vibration and noise reduction.
The embodiment of the present application second aspect provides a kind of detection device of track noise source, comprising: predicting unit, for pair
Aerial conveyor section to be detected carries out wheel-rail noise and bridge structure noise prediction, obtains the aerial conveyor section pair to be detected
The vibratory response information of the vibratory response information for the wheel answered, the vibratory response information of rail and bridge structure；Processing unit is used
In the vibratory response information of vibratory response information, the rail based on the wheel and the vibratory response information of bridge structure,
Obtain the noise contours in the aerial conveyor section to be detected.
In conjunction with second aspect, the embodiment of the present application provides the first possible embodiment of second aspect, the prediction
Unit is also used to obtain Rigid-flexible Coupling Model, and the wheel rail force in the aerial conveyor section to be detected is calculated by Rigid-flexible Coupling Model
Response；Wherein, the Rigid-flexible Coupling Model is based on the numerical simulation mould for needing the aerial conveyor section in detection noise source to establish
Type；The Rigid-flexible Coupling Model includes the geological information of the geological information of wheel, the geological information of rail and bridge structure；It is described
Predicting unit is also used to calculate the wheel track force-responsive according to ANSYS spectrum analysis, obtains and the aerial conveyor section to be detected
The vibratory response information of the vibratory response information of corresponding wheel, the vibratory response information of rail and bridge structure.
The embodiment of the present application third aspect provides a kind of computer readable storage medium, the computer readable storage medium
For storing program code, said program code executes such as the embodiment of the present application first party when being readable by a computer and running
A kind of detection method of track noise source described in the possible embodiment of any one of face or first aspect.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, present pre-ferred embodiments are cited below particularly,
And cooperate appended attached drawing, it is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described.It should be appreciated that the following drawings illustrates only certain embodiments of the present invention, therefore it is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is a kind of the first block diagram of the detection method of track noise source provided by the embodiments of the present application.
Fig. 2 is a kind of second of block diagram of the detection method of track noise source provided by the embodiments of the present application.
Fig. 3 is a kind of noise contours schematic diagram of the detection method of track noise source provided by the embodiments of the present application.
Fig. 4 is a kind of structure chart of the detection device of track noise source provided by the embodiments of the present application.
Icon: 100- predicting unit；200- processing unit.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component of the embodiment of the present application being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In addition, term " the
One ", " second " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
With reference to the accompanying drawing, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
It please refers to shown in Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is a kind of detection side of track noise source provided by the embodiments of the present application
The first block diagram of method.Fig. 2 is a kind of second of step of the detection method of track noise source provided by the embodiments of the present application
Figure.Fig. 3 is a kind of noise contours schematic diagram of the detection method of track noise source provided by the embodiments of the present application.
Step S100 carries out wheel-rail noise and bridge structure noise prediction to elevated guideway section to be detected, described in acquisition
Vibratory response information, the vibratory response information of rail and the vibration of bridge structure of the corresponding wheel in aerial conveyor section to be detected
Response message.
Step S100 in order to facilitate understanding by those skilled in the art below first explains the noun in step S100.
Wheel-rail noise in mutual high-frequency resistance, causes the vibration of wheel and rail, and then the vibration produces by the wheel and rail of train
Raw noise simultaneously radiates around.Wheel-rail noise is in radiative process, and due to the reflection by bridge floor or road surface, wheel track is made an uproar
Sound is spatially distributed in the tops on bridge floor or road surface more.Bridge structure noise is rail in vibration, entire track structure
Low-frequency vibration to bridge structure transmit, the beam body of bridge structure for example same amplification noise sound plate, will be in bridge structure
Low-frequency vibration amplifies, to generate noise and radiate around.So bridge structure noise spatially more is distributed in bridge
Below beam.
Step S300, the vibration of vibratory response information, the vibratory response information of rail and bridge structure wheel-based are rung
Information is answered, the noise contours in aerial conveyor section to be detected is obtained.
Illustratively, the embodiment of the present application carries out the overhead section of actual demand noise reduction by the method for numerical simulation
The prediction of wheel-rail noise and bridge noise.Compared to the indirect supposition mode according to spectrum analysis, the embodiment of the present application can lead to
It crosses specific model structure and intuitively embodies aerial conveyor section to be detected, so as to the overhead of noise reduction according to actual needs
Section adjusts model structure.It therefore, can be after the noise contours for obtaining aerial conveyor section to be detected, according to the noise etc.
Value line determines the wheel-rail noise source in aerial conveyor section to be detected and the main distribution situation of bridge structure noise source, Jin Erke
To realize the technical effect of the noise source in accurate detection aerial conveyor section, so that those skilled in the art can be according to inspection
The noise source measured takes corresponding vibration and noise reducing measure.
Optionally, the content in step S100 includes obtaining Rigid-flexible Coupling Model, is calculated by Rigid-flexible Coupling Model to be checked
Survey the wheel track force-responsive in aerial conveyor section；Wherein, Rigid-flexible Coupling Model is based on the elevated guideway for needing detection noise source
The numerical simulation model of Duan Jianli；Rigid-flexible Coupling Model includes the geological information of wheel, the geological information of rail and bridge structure
Geological information；Wheel track force-responsive is calculated according to ANSYS spectrum analysis, obtains wheel corresponding with aerial conveyor section to be detected
The vibratory response information of vibratory response information, the vibratory response information of rail and bridge structure.
Illustratively, the height to be detected of train process can be restored by carrying out simulation calculation to Rigid-flexible Coupling Model
The scene of frame rail road segment segment, to obtain accurate wheel track force-responsive.Further according to ANSYS spectrum analysis (for example, response spectrum analysis.
The response of response spectra m- course load function when representing system to one is the relation curve of a response and frequency.) calculate
Wheel track force-responsive can be obtained accurately at the aerial conveyor section to be detected that train passes through, the vibratory response letter of train wheel
Breath, aerial conveyor section to be detected rail vibratory response information and aerial conveyor section to be detected bridge structure vibration
Response message, and then ensure that the noise source in the aerial conveyor section finally detected is accurate.
Optionally, vibratory response information wheel-based, the vibratory response information of rail and the vibratory response of bridge structure
Information, the noise contours for obtaining aerial conveyor section to be detected includes: geological information and vehicle by presetting method to wheel
The geological information and bridge of the vibratory response information of wheel, the vibratory response information of the geological information of rail and rail and bridge structure
Vibration of beam response message carries out noise calculation, obtains the spatial distribution of wheel-rail noise and the spatial distribution of bridge structure noise；
According to the spatial distribution of the spatial distribution of wheel-rail noise and bridge structure noise, calculates and draw wheel-rail noise and bridge structure is made an uproar
The equal noise contours of the sound pressure level of sound；Wherein, noise contours is used to determine the noise source in aerial conveyor section to be detected
For wheel-rail noise or bridge structure noise.
Illustratively, Rigid-flexible Coupling Model can be finite element model, correspondingly, presetting method can be finite element edged
The method of boundary's member.Optionally, LMS Virtual.Lab Acoustics acoustics software for calculation can be selected to carry out noise Simulation meter
It calculates, to calculate the spatial distribution of the spatial distribution and bridge structure noise that obtain wheel-rail noise.It can be in conjunction with wheel-rail noise
The spatial distribution of spatial distribution and bridge structure noise can choose the maximum track noise section in aerial conveyor section,
Accurately calculate the equal point of the sound pressure level of wheel-rail noise and bridge structure noise in the track noise section, then by these acoustic pressures
The equal point of grade is linked to be line (can be and connected with straight line, be also possible to curve connection), to draw noise contours.And then root
The noise source that aerial conveyor section is accurately detected according to noise contours is wheel-rail noise or bridge structure noise.It is intelligible, root
According to noise contours, it is capable of determining that the spatial distribution based on wheel-rail noise of aerial conveyor section surrounding space and with bridge
Spatial distribution based on girder construction noise.
Wherein, simulation calculation flow process is as follows, first confirms that the place of wheel track irregularity in Rigid-flexible Coupling Model, then emulates
Train passes through the wheel-rail interaction situation in aerial conveyor section to be detected, to calculate separately vibration and the rail of wheel
Vibration, and then wheel noise is calculated according to the vibrometer of wheel.Intelligible, the vibratory response information of wheel includes the vibration of wheel
Dynamic and wheel noise.Similarly, rail noise is gone out according to the vibration calculating of rail.It is intelligible, the vibratory response packet of rail
Include vibration and the rail noise of rail.Intelligible, wheel-rail noise may include wheel noise and rail noise.
Next, the energy of bridge structure is passed to according to the vibration calculating of rail, to calculate the vibration of analysis bridge structure
It is dynamic, and then according to the vibration calculating bridge structure noise of bridge structure.Intelligible, the vibratory response information of bridge structure includes
The vibration of bridge structure and bridge structure noise.Finally, being obtained by the way that wheel-rail noise and bridge structure noise are overlapped summation
Obtain the integrated noise by sound point.It is intelligible, position is in by what sound point can be the surrounding user of aerial conveyor route.By sound
The integrated noise of point, the surrounding user that can be aerial conveyor route are in the noise that position is subject to.It is intelligible, wheel track is made an uproar
Sound and bridge structure noise are overlapped summation, can obtain the spatial distribution of wheel-rail noise and the space point of bridge structure noise
Cloth.
Optionally, Rigid-flexible Coupling Model is being obtained, the wheel in aerial conveyor section to be detected is calculated by Rigid-flexible Coupling Model
Before rail force-responsive, method further include: track-bridge finite element model is established in ANSYS, comprising: timoshenko beam mould
The rail model of type, the shell unit model of track plates, the physical model of U-shaped beam bridge, the damping unit model of fastener and vibration isolator；
Rigid-flexible Coupling Model is established based on track-bridge finite element model.
Illustratively, track-bridge finite element model is established in ANSYS by finite element method.Wherein, iron
The rail model of the pungent Ke's beam model of wood can be substituted for the rail model of Euler's beam model.Finite element analysis (FEA, Finite
Element Analysis) it is that mould is carried out to actual physical system (geological information and load working condition) by the method for mathematical approach
It is quasi-.Utilize simple and interaction element (i.e. unit), so that it may go to approach with the unknown quantity of limited quantity unlimited unknown
The real system of amount.Therefore, track-bridge finite element model can be established by finite element method, to simulate
The specific structure in aerial conveyor section to be detected.And then track-bridge the finite element model established is capable of providing for carrying out
The geological information of the geological information of the wheel of subsequent calculating, the geological information of rail and bridge structure.
Optionally, by the finite element model of the Rigid-flexible Coupling Model and/or the track-bridge and live field test
Result compare, the parameter in the Rigid-flexible Coupling Model is adjusted according to the result of the live field test,
Obtain optimized Rigid-flexible Coupling Model.
Illustratively, it can be simulated by track-bridge finite element model consistent with aerial conveyor section to be detected
Railway track and bridge structure.Further, additionally it is possible to establish consistent by sound point model with live field test.To pass through
Rigid-flexible Coupling Model and/or track-bridge finite element model and the result of live field test are compared, and then carried out
Parameter optimization appropriate.For example, the rail model of adjustment timoshenko beam model, the shell unit model of track plates, U-shaped beam bridge
One of damping unit model of physical model, fastener and vibration isolator or many kinds of parameters.And then can more accurately simulate to
Detect aerial conveyor section.Further, it carries out also studying when parameter optimization and is more suitable for aerial conveyor section to be detected
The configuration mode of vibration and noise reducing, so as to consider and complete the vibration and noise reducing work in aerial conveyor section to be detected.It is appreciated that
, pass through the result verification Rigid-flexible Coupling Model of live field test and/or the reliability of track-bridge finite element model.
Step S500 is obtained and is pushed away when the aerial conveyor section to be detected noise source determined based on noise contours is wheel-rail noise
Send the control measure scheme for being directed to wheel-rail noise to pre-set user；Wherein, the control measure scheme of wheel-rail noise includes: rail
Polishing, wheel-rail friction management and increase rail damping.
Illustratively, due to according to noise contours, can determine that the space and bridge structure based on wheel-rail noise are made an uproar
Space based on sound.It is wheel track when the aerial conveyor section to be detected determined based on noise contours or by the noise source of sound point
When noise is main, the embodiment of the present application can push the control measure scheme for being directed to wheel-rail noise to pre-set user, preset and use
Family can be the user using the method in the embodiment of the present application, be also possible to be responsible for the maintenance mans in aerial conveyor section to be detected
Cheng Shi.Wherein, the control measure scheme of wheel-rail noise includes: that steel rail grinding (polishes rail's end portion due to vehicle braking etc.
Caused wavy surfaces), wheel-rail friction management, increase rail damping or setting damping steel rail, optimization track structure (with weldering
The gapless line connect replaces short rail, to reduce rail joint), setting sound barrier and setting abatvoix etc., it is default so as to allow
User learns the control measure scheme for the wheel-rail noise that aerial conveyor section to be detected needs to carry out, and then reaches effective vibration damping
Noise reduction effect.
Step S700 is obtained and is pushed and be directed to when the noise source determined based on noise contours is bridge structure noise
In bridge structure noise control measure scheme to pre-set user；Wherein, the control measure scheme of bridge structure noise includes: to subtract
Dynamic vibration absorber on vibration fastener, floating plate railway roadbed and bridge.
Illustratively, due to according to noise contours, can determine that the space and bridge structure based on wheel-rail noise are made an uproar
Space based on sound.It is bridge when the aerial conveyor section to be detected determined based on noise contours or by the noise source of sound point
When structural noise is main, the embodiment of the present application can push the control measure scheme for being directed to bridge structure noise to default use
Family, pre-set user can be the user using the method in the embodiment of the present application, be also possible to be responsible for elevated guideway to be detected
The Maintenance Engineer of section.Wherein, the control measure scheme of bridge structure noise includes: using Damping fastening, optimization bridge structure
Rail (is placed in spring by dynamic vibration absorber on (reinforced concrete arch bridge is selected to replace steel girder bridge), floating plate railway roadbed and bridge
On damper, if the decrement of spring is greater than 5 millimeters, that is, it is considered as selecting prestressed spring damper.), it is pre- so as to allow
If user learns the control measure scheme for the bridge structure noise that aerial conveyor section to be detected needs to carry out, and then reaches effective
Effect of vibration and noise reduction.
Shown in referring to figure 4., Fig. 4 is a kind of structure of the detection device of track noise source provided by the embodiments of the present application
Figure.A kind of detection device of track noise source includes: predicting unit 100, for carrying out wheel track to elevated guideway section to be detected
Noise and bridge structure noise prediction obtain the vibratory response information of the corresponding wheel in aerial conveyor section to be detected, rail
The vibratory response information of vibratory response information and bridge structure；Processing unit 200, for vibratory response information wheel-based,
The vibratory response information of rail and the vibratory response information of bridge structure, the noise for obtaining aerial conveyor section to be detected are equivalent
Line.
Optionally, predicting unit 100 is also used to obtain Rigid-flexible Coupling Model, calculates height to be detected by Rigid-flexible Coupling Model
The wheel track force-responsive of frame rail road segment segment；Wherein, Rigid-flexible Coupling Model is based on needing the aerial conveyor section in detection noise source to build
Vertical numerical simulation model；Rigid-flexible Coupling Model includes the several of the geological information of wheel, the geological information of rail and bridge structure
What information；And predicting unit 100 is also used to calculate wheel track force-responsive according to ANSYS spectrum analysis, obtains and elevated rail to be detected
The vibratory response information of the vibratory response information of the corresponding wheel of road segment segment, the vibratory response information of rail and bridge structure.
Optionally, processing unit 200 is also used to the vibratory response by presetting method to the geological information and wheel of wheel
The vibratory response of the geological information and bridge of the vibratory response information and bridge structure of information, the geological information of rail and rail
Information carries out noise calculation, obtains the spatial distribution of wheel-rail noise and the spatial distribution of bridge structure noise；And processing unit
200 are also used to the spatial distribution of the spatial distribution and bridge structure noise according to wheel-rail noise, calculate and draw wheel-rail noise and
The equal noise contours of the sound pressure level of bridge structure noise；Wherein, noise contours is for determining elevated guideway to be detected
The noise source of section is wheel-rail noise or bridge structure noise.
Optionally, a kind of detection device of track noise source further include: unit is established, for establishing track-in ANSYS
The finite element model of bridge, comprising: the rail model of timoshenko beam model, the shell unit model of track plates, the reality of U-shaped beam bridge
The damping unit model of body Model, fastener and vibration isolator；Rigid-flexible Coupling Model is established based on track-bridge finite element model.
Optionally, a kind of detection device of track noise source further include: comparison unit, for by Rigid-flexible Coupling Model and/
Or track-bridge finite element model and the result of live field test compare, according to the result pair of live field test
Parameter in Rigid-flexible Coupling Model is adjusted, and obtains optimized Rigid-flexible Coupling Model.
Optionally, a kind of detection device of track noise source further include: push unit, for when true based on noise contours
When fixed noise source is wheel-rail noise, obtains and push the control measure scheme for being directed to wheel-rail noise to pre-set user；Wherein,
The control measure scheme of wheel-rail noise includes: steel rail grinding, wheel-rail friction management and increase rail damping.
Optionally, push unit is also used to obtain when the noise source determined based on noise contours is bridge structure noise
It obtains and pushes the control measure scheme for being directed to bridge structure noise to pre-set user；Wherein, the control of bridge structure noise is arranged
The scheme of applying includes: Damping fastening, dynamic vibration absorber on floating plate railway roadbed and bridge.
The embodiment of the present application also provides a kind of computer readable storage medium, and the computer readable storage medium is for depositing
Program code is stored up, said program code executes a kind of inspection of track noise source as the aforementioned when being readable by a computer and running
The method in any embodiment in survey method.
In embodiment provided by the present invention, it should be understood that disclosed devices, systems, and methods can also lead to
Other modes are crossed to realize.Devices, systems, and methods embodiment described above is only schematical, for example, in attached drawing
Flow chart and block diagram show that the system of multiple embodiments according to the present invention, the possibility of method and computer program product are real
Existing architecture, function and operation.In this regard, each box in flowchart or block diagram can represent module, a journey
A part of sequence section or code, a part of the module, section or code include one or more for realizing defined
The executable instruction of logic function.
It should also be noted that function marked in the box can also be with difference in some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can also execute in the opposite order, this depends on the function involved.It is also noted that in block diagram and or flow chart
The combination of box in each box and block diagram and or flow chart, can function or movement as defined in executing it is dedicated
Hardware based system is realized, or can be realized using a combination of dedicated hardware and computer instructions.
In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.It can
With replacement, can be realized wholly or partly by software, hardware, firmware or any combination thereof.When real using software
Now, it can entirely or partly realize in the form of a computer program product.The computer program product include one or
Multiple computer instructions.When loading on computers and executing the computer program instructions, entirely or partly generate according to
Process described in the embodiment of the present application or function.The computer can be general purpose computer, special purpose computer, computer network
Network or other programmable devices.
The computer instruction may be stored in a computer readable storage medium, or from a computer-readable storage
Medium is transmitted to another computer readable storage medium, for example, the computer instruction can be from a web-site, calculating
Machine, server or data center are (such as red by wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless
Outside, wirelessly, microwave etc.) mode transmitted to another web-site, computer, server or data center.The calculating
Machine readable storage medium storing program for executing can be any usable medium or include one or more usable mediums that computer can access
The data storage devices such as integrated server, data center.The usable medium can be magnetic medium, (for example, floppy disk, hard
Disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk Solid State Disk (SSD))
Deng.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of detection method of track noise source characterized by comprising
Wheel-rail noise and bridge structure noise prediction are carried out to elevated guideway section to be detected, obtain the aerial conveyor to be detected
The vibratory response information of the vibratory response information of the corresponding wheel in section, the vibratory response information of rail and bridge structure；
The vibratory response of the vibratory response information and the bridge structure of vibratory response information, the rail based on the wheel
Information obtains the noise contours in the aerial conveyor section to be detected.
2. the method according to claim 1, wherein described carry out wheel-rail noise to elevated guideway section to be detected
With bridge structure noise prediction, the vibratory response information of the corresponding wheel in the aerial conveyor section to be detected, rail are obtained
The vibratory response information of vibratory response information and bridge structure, comprising:
Rigid-flexible Coupling Model is obtained, the wheel track force-responsive in the aerial conveyor section to be detected is calculated by Rigid-flexible Coupling Model；
Wherein, the Rigid-flexible Coupling Model is based on the numerical simulation model for needing the aerial conveyor section in detection noise source to establish；Institute
State the geological information that Rigid-flexible Coupling Model includes the geological information of wheel, the geological information of rail and bridge structure；
The wheel track force-responsive is calculated according to ANSYS spectrum analysis, obtains wheel corresponding with the aerial conveyor section to be detected
Vibratory response information, the vibratory response information of the vibratory response information of rail and bridge structure.
3. according to the method described in claim 2, it is characterized in that, the vibratory response information based on the wheel, described
The vibratory response information of rail and the vibratory response information of the bridge structure obtain making an uproar for the aerial conveyor section to be detected
Sound isopleth, comprising:
The vibratory response information of the geological information of the wheel and the wheel, the geometry of the rail are believed by presetting method
The geological information of the vibratory response information and the bridge structure of breath and the rail and the vibratory response information of the bridge
Noise calculation is carried out, the spatial distribution of wheel-rail noise and the spatial distribution of bridge structure noise are obtained；
According to the spatial distribution of the spatial distribution of the wheel-rail noise and the bridge structure noise, calculates and draw wheel-rail noise
The noise contours equal with the sound pressure level of bridge structure noise；Wherein, the noise contours is described to be detected for determining
The noise source in aerial conveyor section is the wheel-rail noise or the bridge structure noise.
4. detection method according to claim 2, which is characterized in that obtaining Rigid-flexible Coupling Model, passing through Coupled Rigid-flexible
Before model calculates the wheel track force-responsive in the aerial conveyor section to be detected, the method also includes:
Track-bridge finite element model is established in the ANSYS, comprising: the rail model of timoshenko beam model, track
The damping unit model of the shell unit model of plate, the physical model of U-shaped beam bridge, fastener and vibration isolator；
Finite element model based on the track-bridge establishes the Rigid-flexible Coupling Model.
5. detection method according to claim 2 or 4, which is characterized in that the method also includes:
The result of the finite element model of the Rigid-flexible Coupling Model and/or the track-bridge and live field test is carried out
Comparison is adjusted the parameter in the Rigid-flexible Coupling Model according to the result of the live field test, obtains optimized
Rigid-flexible Coupling Model.
6. detection method described in any claim in -4 according to claim 1, which is characterized in that described to be detected overhead obtaining
After the noise contours of track section, the method also includes:
When the noise source determined based on the noise contours is the wheel-rail noise, obtains and push and be directed to the wheel track
The control measure scheme of noise is to pre-set user；Wherein, the control measure scheme of the wheel-rail noise includes: steel rail grinding, wheel
Rail friction management and increase rail damping.
7. detection method described in any claim in -4 according to claim 1, which is characterized in that described to be detected overhead obtaining
After the noise contours of track section, the method also includes:
When the noise source determined based on the noise contours is the bridge structure noise, obtain and push be directed to it is described
The control measure scheme of bridge structure noise is to pre-set user；Wherein, the control measure scheme of the bridge structure noise includes:
Dynamic vibration absorber on Damping fastening, floating plate railway roadbed and bridge.
8. a kind of detection device of track noise source characterized by comprising
Predicting unit, for carrying out wheel-rail noise and bridge structure noise prediction to elevated guideway section to be detected, described in acquisition
Vibratory response information, the vibratory response information of rail and the vibration of bridge structure of the corresponding wheel in aerial conveyor section to be detected
Response message；
Processing unit, vibratory response information and bridge structure for vibratory response information, the rail based on the wheel
Vibratory response information, obtain the noise contours in the aerial conveyor section to be detected.
9. detection device according to claim 8, which is characterized in that the predicting unit is also used to obtain Coupled Rigid-flexible mould
Type calculates the wheel track force-responsive in the aerial conveyor section to be detected by Rigid-flexible Coupling Model；Wherein, the Coupled Rigid-flexible mould
Type is based on the numerical simulation model for needing the aerial conveyor section in detection noise source to establish；The Rigid-flexible Coupling Model includes vehicle
The geological information of the geological information of wheel, the geological information of rail and bridge structure；
The predicting unit is also used to calculate the wheel track force-responsive according to ANSYS spectrum analysis, obtain with it is described to be detected overhead
The vibratory response information of the vibratory response information of the corresponding wheel of track section, the vibratory response information of rail and bridge structure.
10. a kind of computer readable storage medium, which is characterized in that the computer readable storage medium is for storing program generation
Code, said program code execute a kind of track as claimed in any one of claims 1-7 when being readable by a computer and running
The detection method of noise source.
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| CN113916368A (en) * | 2021-12-14 | 2022-01-11 | 中国铁路设计集团有限公司 | Method for predicting environmental vibration and secondary structure noise caused by underground line of rail transit |
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