CN216207006U - Test equipment for wind-induced vibration and galloping performance of optical cable - Google Patents
Test equipment for wind-induced vibration and galloping performance of optical cable Download PDFInfo
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- CN216207006U CN216207006U CN202122333652.5U CN202122333652U CN216207006U CN 216207006 U CN216207006 U CN 216207006U CN 202122333652 U CN202122333652 U CN 202122333652U CN 216207006 U CN216207006 U CN 216207006U
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Abstract
The application relates to a test equipment of optical cable wind-induced vibration and galloping performance, include: the terminal supports are arranged at two ends of the test equipment; the optical fiber connector is used for fixing one end of an optical cable to be tested; the force measuring mechanism is used for measuring the tension of the end part of the optical cable to be measured; the optical fiber dispersion test system is connected to the end part of the optical cable to be tested to measure the change conditions of the length and the attenuation of the optical fiber under the typical wavelength of the optical transmission window; the suspension device is used for supporting the middle position of the optical cable to be tested; the middle support is used for supporting the positions of two ends of the optical cable to be tested; the vibration exciter is used for exciting the optical cable to be tested on a vertical plane; and the terminal device is used for clamping the optical cable. The utility model adopts the electronic vibration exciter to excite the optical cable on the vertical surface, and simulates and determines the fatigue performance of the optical cable and the optical performance change of the optical fiber in the optical cable under the vibration conditions of different stress states in actual operation.
Description
Technical Field
The application belongs to the technical field of optical cable tests, and particularly relates to test equipment and a test method for wind-induced vibration and waving performance of an optical cable.
Background
ADSS Cable, All-dielectric Self-supporting Optical Cable. The all-dielectric optical cable is made of all-dielectric materials, and the self-supporting optical cable means that the self-reinforcing member of the optical cable can bear dead weight and external load.
OPGW Optical cable, Optical Fiber Composite Overhead Ground Wire (also known as Fiber Composite Overhead Ground Wire). The optical fiber is placed in the ground wire of an overhead high-voltage transmission line to form an optical fiber communication network on the transmission line, and the structural form has the double functions of the ground wire and communication and is generally called an OPGW optical cable.
At present, the test standards of the ADSS optical cable and the OPGW optical cable divide the physical state of the cable under the action of wind into two tests of wind-induced vibration and galloping, but in actual operation, the cable has the stressed states of wind vibration and galloping simultaneously under the action of wind, the two independent tests cannot completely simulate the operation state of the cable under the action of wind, and the results of the two tests cannot accurately represent the performance change condition of the cable under the condition of wind power.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the test equipment and the test method for the wind-induced vibration and galloping performance of the optical cable are provided for solving the problem that the test results of the ADSS optical cable and the OPGW optical cable in the prior art cannot reflect the actual stress condition of the ADSS optical cable or the OPGW optical cable under the action of wind power during actual use.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
an optical cable wind-induced vibration and galloping performance testing apparatus, comprising:
the number of the terminal supports is two, and the terminal supports are arranged at two ends of the test equipment;
the optical fiber connector is arranged on one of the terminal supports and used for fixing one end of an optical cable to be tested;
the force measuring mechanism is arranged on the other terminal support and used for measuring the end tension of the optical cable to be measured;
the optical fiber dispersion test system is connected to the end part of the optical cable to be tested to measure the change conditions of the length and the attenuation of the optical fiber under the typical wavelength of the optical transmission window;
the suspension device is arranged between the two terminal supports and used for carrying out any left-right swinging on the middle position of the optical cable to be tested;
the two middle supports are symmetrically arranged on two sides of the suspension device, are close to the optical fiber connector and are used for supporting two end positions of the optical cable to be tested;
the vibration exciter is arranged between the middle support and the suspension device and is used for exciting the optical cable to be tested on a vertical plane;
and the terminal device is arranged between the intermediate support and the vibration exciter and used for clamping the optical cable.
Preferably, the optical fiber cable wind-induced vibration and waving performance test device of the present invention, the optical fiber dispersion test system comprises:
the light source is connected to the end part of the optical cable to be tested and used for providing light required by the test for the optical cable to be tested;
the measuring instrument is used for measuring the change conditions of the length and the attenuation of the optical fiber under the typical wavelength of the optical transmission window, and the instrument input end and the instrument output end of the measuring instrument are connected with the optical cable to be measured.
Preferably, the distance between the terminal device and the suspension device is at least 20 meters.
Preferably, in the test equipment for wind-induced vibration and waving performance of the optical cable, the terminal device is a wedge-shaped fixture device.
Preferably, the test equipment for the wind-induced vibration and waving performance of the optical cable of the utility model is provided with a force measuring mechanism or a force sensor.
Preferably, in the test equipment for wind-induced vibration and waving performance of the optical cable, the light source adopts a light emitting diode.
A test method for wind-induced vibration and galloping performance of an optical cable comprises the following steps:
s1, providing the test equipment for the wind-induced vibration and waving performance of the optical cable;
s2, mounting the two ends of the optical cable on the terminal supports respectively, and supporting the optical cable by using the suspension device and the middle support; connecting the optical cable by using a force measuring mechanism and an optical fiber dispersion testing system; clamping two ends of the optical cable by using a terminal device;
and S3, starting a vibration exciter to perform a test, and acquiring test data by the force measuring mechanism and the optical fiber dispersion testing system.
Preferably, in the method for testing wind-induced vibration and waving performance of an optical cable according to the present invention, in step S1, the length of the optical cable is not less than 100 meters.
Preferably, in the method for testing wind-induced vibration and waving performance of an optical cable according to the present invention, in step S2, the length of the optical cable clamped between the terminal devices is not less than 40 meters.
The utility model has the beneficial effects that:
the optical cable is excited by the electronic vibration exciter on the vertical surface, so that the fatigue performance of the optical cable and the optical performance change of the optical fiber in the optical cable under different vibration conditions of the actual operation stress state of the optical cable are simulated and determined, the variable of a test environment can be better controlled, and the actual stress condition of the ADSS optical cable or the OPGW optical cable under the action of wind power in actual use can be reflected.
Drawings
The technical solution of the present application is further explained below with reference to the drawings and the embodiments.
FIG. 1 is a schematic structural diagram of a test apparatus for testing wind-induced vibration and waving performance of an optical cable according to an embodiment of the present application;
fig. 2 is a schematic view of an exciter mounting manner according to an embodiment of the present application.
The reference numbers in the figures are:
1 light source
2 instrument input
3 instrument output
4 force measuring mechanism
5 terminal device
6 moving segment
7 suspension device
8 driven section
9 optical fiber connector
10 terminal support
11 middle support
12 vibration exciter.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the utility model, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Examples
The embodiment provides a test equipment for wind-induced vibration and waving performance of an optical cable, as shown in fig. 1 and 2, comprising:
two terminal supports 10 are arranged at two ends of the test equipment;
the optical fiber connector 9 is arranged on one of the terminal supports 10 and used for fixing one end of an optical cable to be tested;
the force measuring mechanism 4 is arranged on the other terminal support 10 and used for measuring the end tension of the optical cable to be measured;
the optical fiber dispersion test system is connected to the end part of the optical cable to be tested to measure the change conditions of the length and the attenuation of the optical fiber under the typical wavelength of the optical transmission window;
the suspension device 7 is arranged between the two terminal supports 10 and used for carrying out any left-right swinging on the middle position of the optical cable to be tested;
the two middle supports 11 are symmetrically arranged on two sides of the suspension device 7, are close to the optical fiber connector 9 and are used for supporting two ends of the optical cable to be tested;
the vibration exciter 12 is arranged between the middle support 11 and the suspension device 7 and is used for exciting the optical cable to be tested on a vertical plane;
and the terminal device 5 is arranged between the intermediate support 11 and the vibration exciter 12 and is used for clamping the optical cable.
The test equipment for wind-induced vibration and waving performance of the optical cable in the embodiment is shown in fig. 1, a vibration exciter 12 is arranged between an intermediate support 11 and a suspension device 7 which are close to one side of a force measuring mechanism 4, an active section 6 of the optical cable is formed between a left terminal device 5 and the suspension device 7, a driven section 8 of the optical cable is formed between a right terminal device 5 and the suspension device 7, the suspension device 7 is provided with a rocker with an arbitrary left-right swinging function to drive the optical cable to shake, a wind blowing environment is simulated, the force measuring mechanism 4 and an optical fiber dispersion test system can effectively measure various technical parameters of the optical cable in the test, and standard evaluation indexes are conveniently established.
Main technical indexes
First, optical cable sample main parameter
1 the diameter of the outer circle of the optical cable is 10-24 (mm).
Second, main technical indexes of the tester
1 optical cable test technical parameters:
1.1 effective length of test sample: 100(m), wherein the test segment is 30 (m);
1.2 swing angle: alpha-10-80-minus-10 deg
1.3 test rates: 10. 15, 20, 25, 30 cycles/min;
1.4 optical cable sample tension: f500-2000 (kg);
1.5 swing time: setting randomly;
1.2 the test data is automatically recorded, and the test is automatically stopped after the test is finished.
2, test equipment installation requirements:
1) power supply: single phase, AC220V + -10%, 50-60 Hz, 2 kW.
Three-phase, AC380V, 50Hz, 10 kW.
2) The experimental facility uses the space: 30 meters by 3 meters.
3) Ambient temperature: 25 ℃ ± 10 ℃, humidity: no condensation is formed when the concentration is less than or equal to 80 percent.
Preferably, the optical fiber cable wind-induced vibration and waving performance testing apparatus of this embodiment, the optical fiber dispersion testing system includes:
the light source 1 is connected to the end part of the optical cable to be tested and used for providing light required by the test for the optical cable to be tested;
the measuring instrument is used for measuring the change conditions of the length and the attenuation of the optical fiber under the typical wavelength of the optical transmission window, and an instrument input end 2 and an instrument output end 3 of the measuring instrument are connected with the optical cable to be measured. The meter input 2 and the meter output 3 form a loop through which the attenuation, strain and loss of the optical cable are measured.
Preferably, in the test equipment for testing wind-induced vibration and waving performance of the optical cable of the embodiment, the distance between the terminal device 5 and the suspension device 7 is at least 20 meters.
Preferably, in the test equipment for testing wind-induced vibration and waving performance of the optical cable according to the embodiment, the terminal device 5 is a wedge-shaped fixture device, so that the optical cable is prevented from sliding and deviating during the test.
Preferably, in the test apparatus for testing wind-induced vibration and waving performance of the optical cable according to the embodiment, the force measuring mechanism 4 has a force gauge or a force sensor.
Preferably, in the test equipment for testing wind-induced vibration and waving performance of the optical cable according to the embodiment, the light source 1 employs one light emitting diode.
The embodiment provides a method for testing wind-induced vibration and waving performance of an optical cable, which comprises the following steps of:
s1, providing the test equipment for the wind-induced vibration and waving performance of the optical cable;
s2, mounting the two ends of the optical cable on the terminal support 10, respectively, and supporting the optical cable by using the suspension device 7 and the intermediate support 11; connecting the optical cable by using a force measuring mechanism 4 and an optical fiber dispersion testing system; clamping two ends of the optical cable by using a terminal device 5;
and S3, shaking the optical cable by using the suspension device 7 to simulate the state of the optical cable under wind blowing, starting the vibration exciter 12 to perform a test, and acquiring test data by using the force measuring mechanism 4 and the optical fiber dispersion testing system.
Preferably, in the method for testing wind-induced vibration and waving performance of an optical cable according to the embodiment, in step S1, the length of the optical cable is not less than 100 meters.
Preferably, in the method for testing wind-induced vibration and waving performance of an optical cable according to the embodiment, in step S2, the length of the optical cable clamped between the terminal devices 5 is not less than 40 meters.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the utility model. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides an optical cable wind-induced vibration and test equipment of galloping performance which characterized in that includes:
the number of the terminal supports (10) is two, and the terminal supports are arranged at two ends of the test equipment;
the optical fiber connector (9) is arranged on one of the terminal supports (10) and is used for fixing one end of an optical cable to be tested;
the force measuring mechanism (4) is arranged on the other terminal support (10) and used for measuring the end tension of the optical cable to be measured;
the optical fiber dispersion test system is connected to the end part of the optical cable to be tested to measure the change conditions of the length and the attenuation of the optical fiber under the typical wavelength of the optical transmission window;
the suspension device (7) is arranged between the two terminal supports (10) and used for swinging the middle position of the optical cable to be tested left and right at will;
the two middle supports (11) are symmetrically arranged on two sides of the suspension device (7) and close to the optical fiber connector (9) and are used for supporting two ends of the optical cable to be tested;
the vibration exciter (12) is arranged between the middle support (11) and the suspension device (7) and is used for exciting the optical cable to be tested on a vertical plane;
and the terminal device (5) is arranged between the intermediate support (11) and the vibration exciter (12) and is used for clamping the optical cable.
2. The apparatus for testing wind-induced vibration and dancing performance of an optical cable according to claim 1, wherein said optical fiber dispersion testing system comprises:
the light source (1) is connected to the end part of the optical cable to be tested and used for providing light required by the test for the optical cable to be tested;
the measuring instrument is used for measuring the change conditions of the length and the attenuation of the optical fiber under the typical wavelength of the optical transmission window, and the instrument input end and the instrument output end of the measuring instrument are connected with the optical cable to be measured.
3. Test equipment for the aeolian vibration and dancing performance of optical cables according to claim 2, characterised in that said terminal device (5) is at a distance of at least 20 metres from said suspension means (7).
4. A test rig for wind-induced vibration and dancing performance of optical cables as claimed in any of claims 1-3, wherein said termination means (5) is a wedge-shaped clamp device.
5. The test equipment for wind-induced vibration and dancing performance of optical cable according to any one of claims 1-3, wherein said force measuring mechanism (4) has a force gauge or a force sensor.
6. The test equipment for wind-induced vibration and waving performance of optical cable according to any one of claims 2-3, wherein the light source (1) employs a light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122333652.5U CN216207006U (en) | 2021-09-26 | 2021-09-26 | Test equipment for wind-induced vibration and galloping performance of optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122333652.5U CN216207006U (en) | 2021-09-26 | 2021-09-26 | Test equipment for wind-induced vibration and galloping performance of optical cable |
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| Publication Number | Publication Date |
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| CN216207006U true CN216207006U (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819950A (en) * | 2021-09-26 | 2021-12-21 | 通鼎互联信息股份有限公司 | Test equipment and test method for wind-induced vibration and galloping performance of optical cable |
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2021
- 2021-09-26 CN CN202122333652.5U patent/CN216207006U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819950A (en) * | 2021-09-26 | 2021-12-21 | 通鼎互联信息股份有限公司 | Test equipment and test method for wind-induced vibration and galloping performance of optical cable |
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