CN108827204A - A kind of contact net geometric parameter method for compensating vibration - Google Patents
A kind of contact net geometric parameter method for compensating vibration Download PDFInfo
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- CN108827204A CN108827204A CN201810899938.XA CN201810899938A CN108827204A CN 108827204 A CN108827204 A CN 108827204A CN 201810899938 A CN201810899938 A CN 201810899938A CN 108827204 A CN108827204 A CN 108827204A
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- train
- geometric parameter
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- contact net
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
Abstract
The invention discloses a kind of contact net geometric parameter method for compensating vibration, including step：The dynamic geometry parameter of train is measured by geometric parameter measurement module；Train, which is calculated, by vibration compensation module descends amount of floating on the whole；It by the dynamic geometry parameters revision is static geometric parameter according to the amount of floating.The dynamic geometry parameters revision of the contact net of measurement is static geometric parameter by vibration compensation module by the contact net geometric parameter method for compensating vibration, train can be corrected and complete high speed contact net geometric parameter at 120km/h, and the accurate measurement accuracy of contact net geometric parameter measured after modifying is high.
Description
Technical field
The present invention relates to the technical fields of contact net measuring, in particular to a kind of contact net geometric parameter vibration compensation side
Method.
Background technique
Position of the contact net geometric parameter measurement system in dynamic running process relative to track be it is continually changing, connect
Detection vehicle of touching net can generate various forms of vibrations in operation detection process, and this vibration generate car body will relative to route
The horizontal displacement at center and vertical displacement relative to rail surface, contact net geometric parameter measurement system does not have vibration compensation at present
Amendment, error are larger.
Therefore the installation reference point of detection sensor constantly changes in measurement process, it cannot be guaranteed that dynamic witness mark
It is completely coincident with static reference points, is the dynamic value convenient for detection vehicle measurement compared with the quiescent value of manual measurement, it is necessary to will
Dynamic test value is reduced into the static parameter using orbit plane as reference system.
For this purpose, we have proposed a kind of contact net geometric parameter method for compensating vibration.
Summary of the invention
The main purpose of the present invention is to provide a kind of contact net geometric parameter method for compensating vibration, have amendment train
The high advantage of high speed contact net geometric parameter, accurate measurement accuracy is completed at 120km/h.
To achieve the above object, the present invention provides a kind of contact net geometric parameter method for compensating vibration, including step：
Step S1, the dynamic geometry parameter of contact net is measured by geometric parameter measurement module；
Step S2, train is calculated by vibration compensation module and descends amount of floating on the whole；
It step S3, is static geometric parameter by the dynamic geometry parameter compensating approach according to the amount of floating.
It preferably, further include step S0 before step S1：Each vibration compensation inside modules camera internal reference is marked
It is fixed, and each vibration compensation module is associated with the relative position of the geometric parameter measurement module and is demarcated, according to
Nominal data obtains demarcating file.
Preferably, the geometric parameter measurement module is set in the geometric center lines of roof of train；The vibration is mended in pairs
Repay the vehicle bottom two sides that module is mounted side by side immediately below the geometric parameter measurement module.
Preferably, the dynamic geometry parameter includes that dynamic pull-out values and dynamic lead high level；The static state geometric parameter packet
High level is led containing static stagger and static state.
Preferably, the vibration compensation module includes left position displacement sensor and right displacement sensor, the left dislocation sensing
Device is used to measure the relative position variable quantity of left position displacement sensor and left rail, and the right displacement sensor is for measuring right position
The relative position variable quantity of displacement sensor and right rail.
Preferably, the step S2 specifically includes：
Step S21, rail center coordinate is identified by vibration compensation module, the rail center coordinate of identification is passed through into calibration
File is converted into actual coordinate；
Step S22, the vibration compensation module on the left of train is calculated relative to corresponding lower section rail according to actual coordinate
Left amount of floating and train on the left of right amount of floating of the vibration compensation module relative to corresponding lower section rail；
Step S23, train is calculated according to left amount of floating and right amount of floating and descends amount of floating, specific formula for calculation on the whole
For：
Δ h=Δ hl-Δhr=(hl-hl0)-(hr-hr0) (1)
Wherein, Δ h is that train descends amount of floating, Δ h on the wholelFor left amount of floating, Δ hrFor right amount of floating, hlExist for train
Left position displacement sensor detects relative position variable quantity when movement；hrFor train, right displacement sensor detects relative position during exercise
Variable quantity；hl0For train, when linear position is static, left position displacement sensor detects relative position variable quantity；hr0It is train in straight line
Right displacement sensor detects relative position variable quantity when position is static.
Preferably, the step S3 specifically includes：
The dynamic compensation value that momentum calculates dynamic pull-out values is floated downward on the whole according to train, specifically, dynamic compensation value meter
It is as follows to calculate formula：
D ≈ ((H-h)/s) * Δ h=k Δ h (2-1)
Wherein, in formula (2-1), d is the dynamic compensation value of dynamic pull-out values, and H is conductor height；S is two side sensers
Spacing；H is cartridge height to the top of rail.
Preferably, the step S3 specifically also includes：
Momentum compensation corrected Calculation static state stagger is floated downward on the whole according to obtained train, and specific formula for calculation is：
as=ad-kΔh-kΔh0 (2-2)
Wherein, in formula (2-2), asFor static stagger；adFor dynamic detection stagger；D is dynamic compensation value, d0For
Initial compensation amount；Δh0For train, when linear position is static, tilting of car body amount, Δ h are that train descends amount of floating on the whole.
Preferably, the step S3 specifically also includes：Momentum compensation corrected Calculation is floated downward on the whole according to obtained train
Static state leads high level, and specific formula for calculation is：
hs=hd-Δh (3)
Wherein, in formula (3), hsHigh level, h are led for static detectiondLead high level for dynamic detection, Δ h be train on the whole under
Amount of floating.
Compared with prior art, the present invention has the advantages that：By vibration compensation module by the contact net of measurement
Dynamic geometry parameters revision be static geometric parameter, train can be corrected and complete high speed contact net geometric parameter at 120km/h,
And the accurate measurement accuracy of contact net geometric parameter measured after modifying is high.
Detailed description of the invention
Fig. 1 is the flow chart of the contact net geometric parameter method for compensating vibration of the embodiment of the present invention.
Fig. 2 is the tilting of car body schematic diagram when train of the embodiment of the present invention sidewinders.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Being modified compensation to contact net geometric parameter may make the geometric parameter accuracy of measurement higher, and the present invention can mention
The method of accurate geometry parameter is carried out when running at high speed for train.Fig. 1 is the contact net geometric parameters of the embodiment of the present invention
The flow chart of number method for compensating vibration, as shown in Figure 1, present embodiments providing a kind of contact net geometric parameter vibration compensation side
Method specifically comprises the following steps：
Step S1, the dynamic geometry parameter of contact net is measured by geometric parameter measurement module；
Step S2, train is calculated by vibration compensation module and descends amount of floating on the whole；
It step S3, is static geometric parameter by the dynamic geometry parameters revision according to the amount of floating.
Above-mentioned contact net geometric parameter method for compensating vibration is based on the geometric parameter for measuring contact net geometric parameter
Measurement module and the vibration compensation module of amount of floating is descended to complete on the whole for calculating train, specifically, geometric parameter measurement
Module is set in the geometric center lines of roof of train.Furthermore pairs of vibration compensation module is mounted side by side in geometric parameter measurement mould
Vehicle bottom two sides immediately below block, vibration compensation module include left position displacement sensor and right displacement sensor, and left position displacement sensor is used
In the relative position variable quantity of measurement left position displacement sensor and left rail, right displacement sensor is for measuring right displacement sensor
With the relative position variable quantity of right rail.Wherein, geometric parameter measurement module and vibration compensation module synchronization acquire data simultaneously
It synchronizes and compensates, achievable dynamic measurement.
Before the measurement of the dynamic geometry parameter of contact net, setting demarcating file is also needed, can will be examined by demarcating file
The pixel coordinate measured is converted into actual coordinate.The setting of demarcating file the specific steps are：To each vibration compensation inside modules
Camera internal reference is demarcated, and is associated with and is marked with the relative position of geometric parameter measurement module to each vibration compensation module
It is fixed, demarcating file is obtained according to nominal data.
Now a kind of specific steps of contact net geometric parameter method for compensating vibration provided by the invention are described in detail：
The dynamic geometry parameter of contact net is measured by geometric parameter measurement module, wherein dynamic geometry parameter includes dynamic
State stagger and dynamic lead high level.Contact line is directly contacted and is rubbed with block of bow collector of electric locomotive, for guarantee pantograph and
Contact line reliable contacts, non-off-line and guarantee pantograph even wearing, it is desirable that contact line presses technical requirements fixed bit on the line
It sets, when train moves to curve section, the distance between contact line and electric locomotive pantograph sliding plate center at anchor point
As dynamic pull-out values；In train movement, the vertical range of contact line to rail plane as dynamically leads high level.
After measurement obtains dynamic pull-out values and dynamic leads high level, because train vibration to stagger and can lead high level and have shadow
It rings, therefore, dynamic pull-out values and dynamic need to be led high level and are modified to obtain the static geometric parameter of precise measurement, static geometry
Parameter include static stagger and it is static lead the forms of motion of high level train vibration and include yaw, sideway and sidewinder, below with
Train is illustrated for sidewindering,
Fig. 2 is tilting of car body schematic diagram of the train of embodiment of the present invention when sidewindering, as shown in Fig. 2, firstly, needing first to repairing
Positive quantity is calculated, and correction amount is that train descends amount of floating on the whole when train sidewinders, and calculates train by vibration compensation module
Amount of floating is descended on the whole, specific steps are as follows：
Rail center coordinate is identified by vibration compensation module, and the rail center coordinate of identification is converted by demarcating file
For actual coordinate；Left floating of the vibration compensation module on the left of train relative to corresponding lower section rail is calculated according to actual coordinate
Amount and train on the left of right amount of floating of the vibration compensation module relative to corresponding lower section rail；According to left amount of floating and right floating
Meter calculates train and descends amount of floating on the whole, and specific formula for calculation is：
Δ h=Δ hl-Δhr=(hl-hl0)-(hr-hr0) (1)
Wherein, in formula (1), Δ h is that train descends amount of floating on the whole, as shown in Fig. 2, Δ hlFor left amount of floating, Δ hrFor
Right amount of floating, hlFor train, left position displacement sensor detects relative position variable quantity during exercise；hrFor train right displacement during exercise
Sensor detects relative position variable quantity；hl0For train, when linear position is static, left position displacement sensor detects relative position variation
Amount；hr0For train, when linear position is static, right displacement sensor detects relative position variable quantity.
After the completion of train floats downward momentum calculating on the whole, amount of floating can be descended dynamic pull-out values on the whole according to train
Compensating approach is static stagger, and will dynamically lead high level compensating approach is that static state leads high level.
Pantograph off-centring after train inclination, offset is the dynamic compensation value of dynamic pull-out values, specifically, dynamic
Compensation rate calculation formula is as follows：
D ≈ ((H-h)/s) * Δ h=k Δ h (2-1)
Wherein, in formula (2-1), d is the dynamic compensation value of dynamic pull-out values, and H is conductor height；S is two side sensers
Spacing；Δ h is cartridge height to the top of rail.Consideration be located in left side, right side and car body to the left, be tilted to the right.To simplify the calculation, it enables
Detection stagger is positive on the left of pantograph, and right side is negative, while considering that car body is laid particular stress on, specifically, static stagger calculation formula
It is as follows：
as=ad-d-d0
It derives, as=ad-kΔh-kΔh0 (2-2)
Wherein, in formula (2-2), asFor static stagger；adFor dynamic detection stagger；D is dynamic compensation value, d0For
Initial compensation amount；Δ h is that train descends amount of floating, Δ h on the whole0Indicate train tilting of car body amount when linear position is static, and
It is tilted to the right and is positive, be tilted to the left and be negative.
Furthermore it is as follows that static state leads high level calculation formula：
hs=hd-Δh (3)
Wherein, in formula (3), hsHigh level, h are led for static detectiondLead high level for dynamic detection, Δ h be train on the whole under
Amount of floating.
According to above-mentioned static stagger and the static processing for leading high level calculation formula, amendment train can compensate in 120km/
The accurate measurement of h high speed contact net geometric parameter accomplished below, precision reach 5mm.The present embodiment is rolled into just for train-side
Row analysis, to can equally be compensated and corrected to dynamic geometry parameter under the train vibrations states such as train yaw, train sideway
Static geometric parameter is obtained, geometric parameter can be compensated and corrected in 3 dimensions.
Compared with prior art, the present invention has the advantages that：By vibration compensation module by the contact net of measurement
Dynamic geometry parameters revision be static geometric parameter, train can be corrected and complete high speed contact net geometric parameter at 120km/h,
And the accurate measurement accuracy of contact net geometric parameter measured after modifying is high.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (9)
1. a kind of contact net geometric parameter method for compensating vibration, which is characterized in that including step：
Step S1, the dynamic geometry parameter of contact net is measured by geometric parameter measurement module；
Step S2, train is calculated by vibration compensation module and descends amount of floating on the whole；
It step S3, is static geometric parameter by the dynamic geometry parameter compensating approach according to the amount of floating.
2. contact net geometric parameter method for compensating vibration according to claim 1, which is characterized in that before step S1 also
Including step S0：Each vibration compensation inside modules camera internal reference is demarcated, and to each vibration compensation module with
The relative position association of the geometric parameter measurement module is demarcated, and obtains demarcating file according to nominal data.
3. contact net geometric parameter method for compensating vibration according to claim 1, which is characterized in that the geometric parameter is surveyed
Module is measured to be set in the geometric center lines of roof of train；The pairs of vibration compensation module is mounted side by side to be surveyed in the geometric parameter
Measure the vehicle bottom two sides immediately below module.
4. contact net geometric parameter method for compensating vibration according to claim 1, which is characterized in that the dynamic geometry ginseng
Number leads high level comprising dynamic pull-out values and dynamic；The static state geometric parameter includes that static stagger and static state lead high level.
5. contact net geometric parameter method for compensating vibration according to claim 1, which is characterized in that the vibration compensation mould
Block includes left position displacement sensor and right displacement sensor, and the left position displacement sensor is for measuring left position displacement sensor and left side iron
The relative position variable quantity of rail, the right displacement sensor is used to measure right displacement sensor and the relative position of right rail becomes
Change amount.
6. contact net geometric parameter method for compensating vibration according to claim 1, which is characterized in that the step S2 is specific
Include：
Step S21, rail center coordinate is identified by vibration compensation module, the rail center coordinate of identification is passed through into demarcating file
It is converted into actual coordinate；
Step S22, the vibration compensation module on the left of train is calculated according to actual coordinate to float relative to a left side for corresponding lower section rail
Momentum and train on the left of right amount of floating of the vibration compensation module relative to corresponding lower section rail；
Step S23, train is calculated according to left amount of floating and right amount of floating and descends amount of floating on the whole, specific formula for calculation is：
Δ h=Δ hl-Δhr=(hl-hl0)-(hr-hr0) (1)
Wherein, Δ h is that train descends amount of floating, Δ h on the wholelFor left amount of floating, Δ hrFor right amount of floating, hlIt is being moved for train
Shi Zuowei displacement sensor detects relative position variable quantity；hrFor train, right displacement sensor detects relative position variation during exercise
Amount；hl0For train, when linear position is static, left position displacement sensor detects relative position variable quantity；hr0It is train in linear position
Right displacement sensor detects relative position variable quantity when static.
7. contact net geometric parameter method for compensating vibration according to claim 1, which is characterized in that the step S3 is specific
Include：
The dynamic compensation value that momentum calculates dynamic pull-out values is floated downward on the whole according to train, specifically, dynamic compensation value calculates public affairs
Formula is as follows：
D ≈ ((H-h)/s) * Δ h=k Δ h (2-1)
Wherein, in formula (2-1), d is the dynamic compensation value of dynamic pull-out values, and H is conductor height；S is two side senser spacing；
H is cartridge height to the top of rail.
8. contact net geometric parameter method for compensating vibration according to claim 7, which is characterized in that the step S3 is specific
Also include：
Momentum compensation corrected Calculation static state stagger is floated downward on the whole according to obtained train, and specific formula for calculation is：
as=ad-kΔh-kΔh0 (2-2)
Wherein, in formula (2-2), asFor static stagger；adFor dynamic detection stagger；D is dynamic compensation value, d0It is initial
Compensation rate；Δh0For train, when linear position is static, tilting of car body amount, Δ h are that train descends amount of floating on the whole.
9. contact net geometric parameter method for compensating vibration according to claim 7, which is characterized in that the step S3 is specific
Also include：Momentum compensation corrected Calculation static state is floated downward on the whole according to obtained train and leads high level, and specific formula for calculation is：
hs=hd-Δh (3)
Wherein, in formula (3), hsHigh level, h are led for static detectiondHigh level is led for dynamic detection, Δ h is that train integrally floats up and down
Amount.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114312875A (en) * | 2021-12-03 | 2022-04-12 | 中铁第一勘察设计院集团有限公司 | Contact net parameter rapid detection method based on track reference mode |
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Application publication date: 20181116 |