CN106124031A - Pipe-line system vibration distribution formula home position testing method based on fiber grating - Google Patents
Pipe-line system vibration distribution formula home position testing method based on fiber grating Download PDFInfo
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- CN106124031A CN106124031A CN201610537813.3A CN201610537813A CN106124031A CN 106124031 A CN106124031 A CN 106124031A CN 201610537813 A CN201610537813 A CN 201610537813A CN 106124031 A CN106124031 A CN 106124031A
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- fiber
- fluid pressure
- pressure line
- pipe
- tested fluid
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to fiber grating field of measuring technique, belong to hydraulic plumbing system multiple physical field technical field of measurement and test, specifically provide a kind of pipe-line system vibration distribution formula home position testing method based on fiber grating.The test device that the method uses includes Hydraulic Station, tested fluid pressure line, fiber-optic grating sensor, electromagnetic vibration generator system, signal acquisition controller and industrial computer；The present invention carries out in-situ test by fiber-optic grating sensor to the vibrational state of fluid pressure line, can effectively reflect the vibrational state of fluid pressure line, and be capable of distributed measurement, it is possible to measure multiple location points and multiple physical quantity in real time simultaneously.
Description
Technical field
The present invention relates to fiber grating field of measuring technique, belong to hydraulic plumbing system multiple physical field technical field of measurement and test,
It is specifically related to pipe-line system vibration distribution formula home position testing method based on fiber grating.
Background technology
Fiber-optic grating sensor application in structured testing field gets more and more, and the structure monitoring in civil engineering is light
Fiber grating sensor applies most active field.Fiber-optic grating sensor both can be pasted onto the surface of existing structure, it is also possible to
In embedment structure, structure is measured in real time, monitor formation and the growth of fault of construction.It addition, multiple optical fiber grating sensings
Device can be concatenated into a network and structure is carried out Distributed Detection, and transducing signal can transmit very distance delivers to center monitoring
Room is monitored.
Hydraulic plumbing system is typical power support system, its work in the fields such as vehicle, boats and ships and engineering machinery
Make quality and reliability and the safe operation of whole engineering structure system is played vital effect.Liquid pipeline system is deposited
Intercoupling of liquid pressure pulsations, tube wall vibration and two kinds of vibrations.Vibrate during transmission, can be to surrounding
Radiation airborne noise, also can strengthen the flow noise of channel interior simultaneously, when frequency and the pipe-line system natural frequency phase of vibration
During coincidence, covibration will occur, endanger bigger.
Therefore, research hydraulic plumbing system vibration test technology has great importance.
Summary of the invention
It is desirable to provide a kind of hydraulic plumbing system vibration in-situ testing technique and device, there is measuring point subregion and divide
Cloth (clip region, elbow region, pipe joint area etc.), many physical quantitys (strain, temperature) synchronism detection, capacity of resisting disturbance be strong,
Good stability, can effectively simulate the advantages such as environmental excitation suffered by fluid pressure line.
Technical scheme:
Pipe-line system vibration distribution formula home position testing method based on fiber grating, the test device that the method uses includes
Hydraulic Station 1, tested fluid pressure line 2, fiber-optic grating sensor 3, electromagnetic vibration generator system 4, signal acquisition controller 5 and industrial computer 6；
Described Hydraulic Station 1 provides the hydraulic oil of different pressures for tested fluid pressure line 2, is used for simulating tested fluid pressure line
Impulse excitation suffered by 2, the hydraulic oil of Hydraulic Station 1 output is after tested hydraulic oil pipeline 2, then is back to by oil return pipe
Hydraulic Station 1；
Described tested fluid pressure line 2 two ends are connected with flowline and the oil return pipe of Hydraulic Station 1 respectively by pipe joint, quilt
Survey fluid pressure line 2 to be fixed on installation wallboard by clip, wallboard is installed and is fixed on the table top of electromagnetic vibration generator system 4, make tested
Fluid pressure line 2 is indirectly connected with electromagnetic vibration generator system 4；
Described fiber-optic grating sensor 3 is used for the health status monitoring tested fluid pressure line 2 with clip, and fiber grating passes
Sensor 3 is connected with tested fluid pressure line 2 surface, makes fiber-optic grating sensor 3 be fixed on tested fluid pressure line 2 surface, to quilt
Surveying fluid pressure line 2 and carry out subregion layout, fiber-optic grating sensor 3 is respectively arranged at clip, bend pipe and pipe joint, it is achieved point
Cloth is measured；Optical fiber connector is connected with the fiber grating demodulation module of signal acquisition controller 5；
In test process, described electromagnetic vibration generator system 4 is used for providing the basic excitation environment of tested fluid pressure line 2, produces
Random vibration environment in raw wide frequency domain；
The described fiber grating demodulation module in signal acquisition controller 5 receives and analyzes and passed by fiber-optic grating sensor
Defeated return light wave, draw the change of tested fluid pressure line 2 physical quantity, signal acquisition controller 5 is by gathering data wire and work
Control machine 6 is connected；
Described industrial computer 6 is used for test result carries out real-time final display and monitoring.
The beneficial effect comprise that: the vibrational state of fluid pressure line is entered by the present invention by fiber-optic grating sensor
Row in-situ test, can effectively reflect the vibrational state of fluid pressure line, and be capable of distributed measurement, it is possible to be the most right
Multiple location points and multiple physical quantity are measured in real time.
Accompanying drawing explanation
Fig. 1 is the test device schematic diagram used by the inventive method.
Fig. 2 is that fiber-optic grating sensor arranges schematic diagram.
In figure: 1 Hydraulic Station；2 tested fluid pressure lines；3 fiber-optic grating sensors；4 electromagnetic vibration generator systems；5 signals collecting control
Device；6 industrial computers；7 first pipe joints；8 first clips；At 9 supports (the first pipe bent position)；10 second pipe bent position；11 second clips；
12 second pipe joints.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Pipe-line system vibration distribution formula home position testing method based on fiber grating, the test device that the method uses includes
Hydraulic Station 1, tested fluid pressure line 2, fiber-optic grating sensor 3, electromagnetic vibration generator system 4, signal acquisition controller 5 and industrial computer 6；
Work process: whole test device is provided the impulse excitation suffered by tested fluid pressure line 2 system, liquid by Hydraulic Station 1
Force feed is by returning to Hydraulic Station 1 through return line after tested fluid pressure line 2, and tested fluid pressure line 2 is by pipe joint etc. and liquid
The external pipeline at pressure station 1 is connected, and tested fluid pressure line 2 is fixed on the platform of electromagnetic vibration generator system 4 by clip and installation wallboard
On face, electromagnetic vibration generator system 4 provides the extraneous arbitrary excitation suffered by tested fluid pressure line 2, fiber-optic grating sensor 3 by pasting or
Person's welding manner is fixed on the surface of tested fluid pressure line 2, and tested fluid pressure line 2 occurs vibration or line temperature to become
Causing fiber-optic grating sensor 3 wavelength to change during change, the reflecting light in fiber grating is in signal acquisition controller 5
Fiber Bragg grating (FBG) demodulator demodulation after be input in industrial computer 6, test fiber-optic grating sensor can be arranged and multiple do not share the same light
Grid, i.e. on an optical fiber, can arrange multiple, and the grating of diverse location forms multiple fiber-optic grating sensor, it is achieved liquid
The distributed measurement on pressure pipe road and the measurement of many physical quantitys.The merely exemplary several fiber grating in pipeline surface that is arranged in of this patent passes
Sensor, is not limited by Fibre Optical Sensor number and position.Concrete subregion point layout is as in figure 2 it is shown, optical fiber grating sensing
Device is distributed in first pipe joint the 7, second pipe joint the 12, first clip the 8, second clip the 11, first bend pipe of tested fluid pressure line 2
The bands of position such as place's the 9, second pipe bent position 10.
Claims (1)
1. a pipe-line system vibration distribution formula home position testing method based on fiber grating, the test device bag that the method uses
Include Hydraulic Station, tested fluid pressure line, fiber-optic grating sensor, electromagnetic vibration generator system, signal acquisition controller and industrial computer；
Described Hydraulic Station provides the hydraulic oil of different pressures for tested fluid pressure line, is used for simulating suffered by tested fluid pressure line
Impulse excitation, the hydraulic oil of Hydraulic Station output, after tested hydraulic oil pipeline, then is back to Hydraulic Station by oil return pipe；
Described tested fluid pressure line two ends are connected with Hydraulic Station flowline and oil return pipe respectively by pipe joint, test solution pressure pipe
Road by clip be fixed on installation wallboard on, install wallboard be fixed on the table top of electromagnetic vibration generator system, make tested fluid pressure line with
Electromagnetic vibration generator system is indirectly connected with；
Described fiber-optic grating sensor is used for monitoring the health status of tested fluid pressure line and clip, fiber-optic grating sensor with
Test solution pressure pipe road surfaces is connected, and makes fiber-optic grating sensor be fixed on test solution pressure pipe road surfaces, to tested fluid pressure line
Carrying out subregion layout, fiber-optic grating sensor is respectively arranged at clip, bend pipe and pipe joint, it is achieved distributed measurement；Light
Fine end is connected with the fiber grating demodulation module of signal acquisition controller；
In test process, described electromagnetic vibration generator system is used for providing the basic excitation environment of tested fluid pressure line, produces wideband
Random vibration environment in territory；
Fiber grating demodulation module in described signal acquisition controller receives and analyzes and is transmitted back to by fiber-optic grating sensor
The light wave come, draws the change of tested fluid pressure line physical quantity, and signal acquisition controller is by gathering data wire and industrial computer phase
Connect；
Described industrial computer is used for test result carries out real-time final display and monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537813.3A CN106124031A (en) | 2016-07-08 | 2016-07-08 | Pipe-line system vibration distribution formula home position testing method based on fiber grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610537813.3A CN106124031A (en) | 2016-07-08 | 2016-07-08 | Pipe-line system vibration distribution formula home position testing method based on fiber grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106124031A true CN106124031A (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610537813.3A Withdrawn CN106124031A (en) | 2016-07-08 | 2016-07-08 | Pipe-line system vibration distribution formula home position testing method based on fiber grating |
Country Status (1)
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| CN (1) | CN106124031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665774A (en) * | 2021-01-11 | 2021-04-16 | 哈尔滨工业大学 | Hydraulic pipeline joint lateral force testing method based on DIC |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865180A (en) * | 2010-06-08 | 2010-10-20 | 中舟海洋科技(上海)有限公司 | Static pressure and vibration composite test device for hydraulic tube and connecting joint thereof |
| CN201763726U (en) * | 2010-06-17 | 2011-03-16 | 东北大学 | Test device for simulating vibration environment for hydraulic pipe of aircraft engine |
| JP2013044099A (en) * | 2011-08-22 | 2013-03-04 | Kobe Steel Ltd | Vibration prevention apparatus and vibration prevention method for hydraulic pipeline |
| CN203627416U (en) * | 2013-12-20 | 2014-06-04 | 东北大学 | Coupled vibration simulation experiment table for aero-engine hydraulic pipeline system |
| CN104297081A (en) * | 2014-09-12 | 2015-01-21 | 大连理工大学 | Hydraulic pipeline vibration testing device with adjustable supporting rigidity |
| CN104879348A (en) * | 2015-03-27 | 2015-09-02 | 武汉理工大学 | Hydraulic pipeline vibration test simulation experiment platform |
-
2016
- 2016-07-08 CN CN201610537813.3A patent/CN106124031A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865180A (en) * | 2010-06-08 | 2010-10-20 | 中舟海洋科技(上海)有限公司 | Static pressure and vibration composite test device for hydraulic tube and connecting joint thereof |
| CN201763726U (en) * | 2010-06-17 | 2011-03-16 | 东北大学 | Test device for simulating vibration environment for hydraulic pipe of aircraft engine |
| JP2013044099A (en) * | 2011-08-22 | 2013-03-04 | Kobe Steel Ltd | Vibration prevention apparatus and vibration prevention method for hydraulic pipeline |
| CN203627416U (en) * | 2013-12-20 | 2014-06-04 | 东北大学 | Coupled vibration simulation experiment table for aero-engine hydraulic pipeline system |
| CN104297081A (en) * | 2014-09-12 | 2015-01-21 | 大连理工大学 | Hydraulic pipeline vibration testing device with adjustable supporting rigidity |
| CN104879348A (en) * | 2015-03-27 | 2015-09-02 | 武汉理工大学 | Hydraulic pipeline vibration test simulation experiment platform |
Non-Patent Citations (2)
| Title |
|---|
| 安骥: "《非插入式液压系统管路压力与流量测量技术研究》", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》 * |
| 王作民: "《基于光纤光栅应变测量技术的液压管路压力监测方法》", 《军民两用技术与产品》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665774A (en) * | 2021-01-11 | 2021-04-16 | 哈尔滨工业大学 | Hydraulic pipeline joint lateral force testing method based on DIC |
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Application publication date: 20161116 |