CN106400682A - Force-measurement type laminated rubber bearing based on optical fiber deformation sensor - Google Patents
Force-measurement type laminated rubber bearing based on optical fiber deformation sensor Download PDFInfo
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- CN106400682A CN106400682A CN201610975320.8A CN201610975320A CN106400682A CN 106400682 A CN106400682 A CN 106400682A CN 201610975320 A CN201610975320 A CN 201610975320A CN 106400682 A CN106400682 A CN 106400682A
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- laminated rubber
- bearing
- sensor
- rubber bearing
- deformation
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 30
- 238000012546 transfer Methods 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to an intelligent force-measurement type laminated rubber bearing based on an optical fiber deformation sensor. The intelligent force-measurement type laminated rubber bearing comprises a laminated rubber bearing body and is characterized in that the optical fiber deformation sensor is arranged in the laminated rubber bearing body, an inhaul cable is arranged in the laminated rubber bearing body, one end of the inhaul cable is connected with the optical fiber deformation sensor, the other end of the inhaul cable is fixed to a steel plate in the laminated rubber bearing body, and the deformation sensor adapts to the deformation characteristic of the bearing under dead load and live load stress conditions. By the adoption of the intelligent force-measurement type laminated rubber bearing, sudden and accumulative damage of the bearing can be found in time and recorded, the service condition of the bearing is evaluated, and then reasonable treatment measures can be taken in time. By monitoring the stress condition of the bearing, the traffic load condition of a bridge can be reflected indirectly, and overload vehicles can be found in time.
Description
Technical field
The present invention relates to bridge pad product scope, it is to be propped up based on the Intelligent force measuring plate-type rubber of fibre strain sensor
Seat.
Background technology
Bridge pad is the important component connecting bridge superstructure and substructure, but itself is in bridge structure again
The component that easy damaged but should not be repaired, typically requires after its damage and re-replaces, and changing construction can affect or suspend traffic, Yi Zao
Become economic loss and bad social influence.
The change of load and the environmental condition of passing through with bridge, there is larger fluctuation, with rubber support is in the stress of bearing
Example, long-term bias may lead to the diseases such as bearing local rubber Cracking Failure, rubber body extrusion, also may lead to Bearing Seat Force
Deficiency is even come to nothing.In addition, load-carrying vehicle overloading is the thorny problem that current highway in China traffic generally faces.Vehicle surpasses
Load leads to bridge overloading, and easily bearing is caused with polytype damage, and then causes the change of structure entirety stress, draws
The safety problem that to send out more bigger.This risk shows especially prominent on Single column pier type curve bridge.
Support under pattern in conventional tube, the generation that bearing damages and cumulative process cannot timely be found and pay close attention to, hold
Easily there is disease accumulation.Currently it is directed to the detection of bridge pad still based on manual inspection mode, by range estimation, simple measurement etc.
Mode carries out bearing working condition inspection.But because bridge pier is highly big, the factor such as structure and affiliated facility complexity is so that patrol
Inspection work often faces problems and difficulty, the frequency that bridge pad is patrolled and examined and to patrol and examine effect all not ideal enough.Thus can not and
Damaging suffered by Shi Faxian bridge pad is it is impossible to be changed to bearing in time it is impossible to be eliminated the bridge structure peace thus causing
Full hidden danger.
Content of the invention
The present invention devises a kind of Intelligent force measuring laminated rubber bearing based on fibre strain sensor, can achieve to bearing
The real-time monitoring of stressing conditions.
To achieve these goals, technical scheme is as follows：A kind of intelligent testing based on fibre strain sensor
Power laminated rubber bearing, including laminated rubber bearing body it is characterised in that being provided with optical fiber in laminated rubber bearing body
Deformation-sensor, laminated rubber bearing this internal drag-line is set, drag-line one end is connected with fibre strain sensor, the other end and plate
This internal Interal fixation of formula rubber support, the deformation being adapted to by deformation-sensor under bearing dead load and mobile load stress condition is special
Levy.
According to a preferred embodiment of the invention, it is provided with several fibre strain sensors in laminated rubber bearing body,
Setting connection optical fiber between two adjacent fiber deformation-sensors, described laminated rubber bearing body edges are additionally provided with optical fiber and pass
Defeated interface, described fiber-optic transfer interface is connected described deformation-sensor and is passed by optical fiber with fibre strain sensor or connection optical fiber
Defeated interface is connected with outreaching collecting device, can real-time monitoring Bearing Seat Force situation, by the means of online acquisition, real through cloud platform
When transmit data, transmit to mobile phone or computer terminal, with timely monitoring bearing behaviour in service.
According to a preferred embodiment of the invention, described rubber support includes several rubber layers spaced, two phases
Between adjacent rubber layer, steel plate is set, reserved sensor space is set inside the rubber layer of rubber standoff bottom, and described pre- hand down to posterity
Sensor spatially extended to the steel plate bottom adjacent with this rubber layer, setting through hole above reserved sensor space is until wherein one
The bottom of layer steel plate, and drag-line is set in described insertion in the hole, one end of drag-line is connected with deformation-sensor, the other end of drag-line
Fix with the bottom of this layer of steel plate.
According to a preferred embodiment of the invention, to the superiors' steel plate bottom, described drag-line connects deformation and passes for through hole insertion
Sensor and the superiors' steel plate.
According to a preferred embodiment of the invention, in 4 deformation-sensors of laminated rubber bearing body interior symmetrical placement, right
Claim 2 deformation-sensor lines of centres of setting axial arranged along two masters of bearing respectively.
The present invention passes through drag-line, the deformation of deformation-sensor is associated with bearing deformation, realizes to laminated rubber bearing
The measurement of deformation.And then, constitutive relation is deformed based on bearing, and with reference to Experimental Calibration, can set up deform right with Bearing Seat Force
Should be related to, draw Bearing Seat Force.External collecting device carries out data acquisition to deformation-sensor, can real-time monitoring Bearing Seat Force feelings
Condition.
Using this Intelligent force measuring laminated rubber bearing, real-time monitoring can go out Bearing Seat Force situation, find in time and record and prop up
Seat is sudden and cumulative bad damages, and evaluates bearing behaviour in service.And then the bearing of slight damage timely and effectively can be repaiied
Benefit measure, it is to avoid disease expands further；The bearing that comes to nothing is taken corrective action in time or changes；Badly damaged is propped up
Seat, then can change in time, it is to avoid it affects structure general safety, it is to avoid bigger economic loss.By to Bearing Seat Force situation
Monitoring, also can indirectly reflect traffic load of bridge situation, in time find overloaded vehicle.
The feature of the present invention is：First, the design both can measure the large strain of laminated rubber bearing（Under dead load）,
Also can be monitored it compared with small strain（Under live loading）.Second, invention not only can measure the vertical force suffered by bearing, also accommodate and prop up
Seat when using it may happen that shear displacemant, corner, tilt and even come to nothing it is ensured that device for measuring force is protected before bearing breakage always
Hold normal work.Third, deformation-sensor is connected with external harvester, the Real-time Collection of achievable Bearing Seat Force situation；In addition,
Multiple Dynamometric support uniform data can be gathered, be managed collectively using same multichannel collecting case.Fourth, by adopting online
Collection, data is wirelessly transmitted to cloud platform, and then can send to the client such as mobile phone or computer, realizes to Bearing Seat Force situation
Monitor in real time.Fifth, design increased the Intelligent force measuring function of Conventional plate-type rubber support it is adaptable to all types of plate
Formula rubber support, meets actual demands of engineering, and more advantageous, application prospect is extensive.
Brief description
Fig. 1 is the structural representation of the Intelligent force measuring laminated rubber bearing of one embodiment of the invention.
Fig. 2 is the partial sectional view of the Intelligent force measuring laminated rubber bearing of one embodiment of the invention.
Fig. 3 is on-line monitoring schematic diagram.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is explained in detail.
The stress characteristic of laminated rubber bearing is to bear the moderate finite deformation of bridge superstructure dead load generation, short-term for a long time
(time-varying) bears the relatively small deformation of the live loads such as vehicular load generation.Under the conditions of bearing bearing capacity, vertically strain up to 10000
~20000με.Conventional strain transducer is not suitable for this strain interval, should enable load-bearing monitor device by particular design
Adapt to Bearing Seat Force feature.
The technical scheme is that：A kind of Intelligent force measuring laminated rubber bearing based on fibre strain sensor, including
Laminated rubber bearing body 1, described rubber support includes several rubber layers spaced, sets between two adjacent rubber layers
Put steel plate it is characterised in that being provided with several reserved sensor space in bottom rubber layer, and described reserved sensor is empty
Between extend to above this rubber layer and the bottom steel plate bottom adjacent with this rubber layer, two adjacent reserved sensor space
Between optical fiber reserved passageway is set, the one wide range light based on displacement meter test philosophy of setting in each sensor headspace
Fine deformation-sensor 2, by the connection optical fiber being arranged in optical fiber reserved passageway between several fibre strain sensors 2 described
3 connections, described laminated rubber bearing body edges are additionally provided with fiber-optic transfer interface 4, and described fiber-optic transfer interface is become with optical fiber
Shape sensor or connection optical fiber connect, and described fibre strain sensor is drag-line fibre strain sensor, laminated rubber bearing
This is internal to arrange drag-line, and drag-line one end is connected with fibre strain sensor 2 so that described fibre strain sensor 2 and bottom steel
This internal certain layer of Interal fixation of plate contact, the drag-line other end and laminated rubber bearing, connects deformation-sensor by drag-line and props up
The internal steel plate of seat, is measured the real-time deformation of bearing, and then can indirectly measure the real-time stress of bearing by sensor.Due to becoming
Shape sensor is based on displacement meter test philosophy, directly the relative displacement of the two panels steel plate that test drag-line connects, without with straining
Test carrier (fiber grating, strain silk etc.) direct and rubber cooperative transformation, thus solve test carrier itself cannot adapt to
The problem of Large Deformation of Rubber, accommodates the rubber deformation under dead load with wide range；Meanwhile, measuring accuracy is up to 1%FS, to logical
Bearing deformation under often vehicle active load effect, possesses enough measuring accuracies.
As shown in figure 1, in a kind of Intelligent force measuring laminated rubber bearing based on fibre strain sensor, including board-like rubber
Support body 1 is it is characterised in that be provided with 4 reserved sensor space in laminated rubber bearing body 1, and connects described
The arc optical fiber reserved passageway of 4 reserved sensor space, one fibre strain sensing of setting in each sensor headspace
Device 2, is connected by the connection optical fiber 3 being arranged in optical fiber reserved passageway between described 4 fibre strain sensors, described board-like
Rubber support body edges are additionally provided with fiber-optic transfer interface 4, described fiber-optic transfer interface 4 and fibre strain sensor 2 or company
Thang-kng fine 3 connects so that described 4 fibre strain sensors are able to by fiber-optic transfer interface 4, with the data being arranged on outside
Vasculum connects, with real-time data collection.All devices are built in inside bearing, and bearing outward appearance is consistent with traditional bearing.
As illustrated, described laminated rubber bearing body 1 internal symmetry disposes 4 deformation-sensors 2, the symmetrical biography of in figure
The sensor line of centres is axial arranged along two masters of bearing respectively.
As shown in Fig. 2 described rubber support includes several rubber layers 5 spaced, between two adjacent rubber layers 5
Setting steel plate 6, in bearing bottom rubber layer 5 internal reservation space, installs deformation-sensor 2 for accommodating.Reserved through hole 7,
Insertion, to certain layer of steel plate, can be used for installing drag-line 8, through hole 7 reserves sufficient space, with prevent drag-line 8 occur bearing shearing,
It is not destroyed when rotation.Deformation-sensor b is solderable or bolt is fixed on steel plate 6, and drag-line 8 one end is sensed with deformation
Device 2 connects, and the other end is welded in this layer of steel plate.In the present embodiment, through hole 7 insertion is to the superiors' steel plate bottom, described draws
Rope 8 connects deformation-sensor 2 and the superiors' steel plate.In figure 9 is bottom surface of support saddle, and 10 is bearing top surface.
As shown in figure 3, data acquisition is carried out to intelligent force-measuring supporting seat by data acquisition device 10, send data to cloud and put down
Platform, then data is analyzed process, finally the information needed for client is sent to the client such as the mobile phone of client or computer.Adopt
With this Intelligent force measuring laminated rubber bearing, can find and record that bearing is sudden and cumulative bad damages in time, evaluation bearing uses
Situation, and then take rational treatment measures in time.By the monitoring to Bearing Seat Force situation, also can indirectly reflect bridge traffic
Loading condition, finds overloaded vehicle in time.
The present invention both can measure the big strain of laminated rubber bearing（Under dead load）, also can monitor its small strain（Mobile load
Under effect）, realize carrying out real-time monitoring to Bearing Seat Force situation.
Claims (5)
1. a kind of Intelligent force measuring laminated rubber bearing based on fibre strain sensor, including laminated rubber bearing body, it is special
Levy the wide range fibre strain sensor being to be provided with laminated rubber bearing body based on displacement meter test philosophy, board-like
Rubber support this internal drag-line is set, drag-line one end is connected with fibre strain sensor, the other end and laminated rubber bearing body
Interior Interal fixation, adapts to the deformation behaviour under bearing dead load and mobile load stress condition by deformation-sensor.
2. the Intelligent force measuring laminated rubber bearing based on fibre strain sensor as claimed in claim 1 is it is characterised in that plate
It is provided with several fibre strain sensors, setting connection between two adjacent fiber deformation-sensors in formula rubber support body
Optical fiber, described laminated rubber bearing body edges are additionally provided with fiber-optic transfer interface, described fiber-optic transfer interface and fibre strain
Sensor or connection optical fiber are connected described deformation-sensor and are connected with outreaching collecting device by fiber-optic transfer interface, can supervise in real time
Survey Bearing Seat Force situation, by the means of online acquisition, transmit data in real time through cloud platform, shape is used with timely monitoring bearing
Condition.
3. the Intelligent force measuring laminated rubber bearing based on fibre strain sensor as claimed in claim 1 is it is characterised in that institute
State rubber support and include several rubber layers spaced, between two adjacent rubber layers, steel plate is set, at rubber standoff bottom
The reserved sensor space of setting inside portion's rubber layer, above reserved sensor space, setting through hole is up to wherein one layer of steel plate
Bottom, and arrange drag-line in described insertion in the hole, one end of drag-line is connected with deformation-sensor, the other end of drag-line and this layer of steel
The bottom of plate is fixed.
4. the Intelligent force measuring laminated rubber bearing based on fibre strain sensor as claimed in claim 3 is it is characterised in that pass through
Through hole insertion connects deformation-sensor and the superiors' steel plate to the superiors' steel plate bottom, described drag-line.
5. the Intelligent force measuring laminated rubber bearing based on fibre strain sensor as claimed in claim 1 it is characterised in that
4 deformation-sensors of laminated rubber bearing body interior symmetrical placement, symmetrically arranged 2 deformation-sensor lines of centres are respectively
Axial arranged along two masters of bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975320.8A CN106400682B (en) | 2016-11-07 | 2016-11-07 | Force-measuring type plate rubber support based on optical fiber deformation sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975320.8A CN106400682B (en) | 2016-11-07 | 2016-11-07 | Force-measuring type plate rubber support based on optical fiber deformation sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106400682A true CN106400682A (en) | 2017-02-15 |
| CN106400682B CN106400682B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610975320.8A Active CN106400682B (en) | 2016-11-07 | 2016-11-07 | Force-measuring type plate rubber support based on optical fiber deformation sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277738A (en) * | 2018-01-25 | 2018-07-13 | 上海路博减振科技股份有限公司 | A kind of intelligence lead core rubber support |
| CN115266075A (en) * | 2022-09-26 | 2022-11-01 | 中交第一公路勘察设计研究院有限公司 | Bulging self-sensing plate type support and manufacturing method thereof, monitoring system and monitoring method |
| WO2024067232A1 (en) * | 2022-09-26 | 2024-04-04 | 中交第一公路勘察设计研究院有限公司 | Optical fiber sensing-based laminated bearing and monitoring system, mounting method, and monitoring method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009047582A (en) * | 2007-08-21 | 2009-03-05 | Kawaguchi Metal Industries Co Ltd | Measuring method of vertical load on laminated rubber, and laminated rubber |
| CN102168403A (en) * | 2010-02-26 | 2011-08-31 | 同济大学 | Bridge rubber support system for wireless real-time monitoring |
| CN104153478A (en) * | 2014-08-12 | 2014-11-19 | 中国十七冶集团有限公司 | Intelligent multi-dimensional seismic mitigation and isolation support |
| CN203947407U (en) * | 2014-04-24 | 2014-11-19 | 柳州东方工程橡胶制品有限公司 | A kind of intelligent shock-isolation neoprene bearing |
| CN204570459U (en) * | 2015-03-10 | 2015-08-19 | 同济大学 | A kind of can the bridge cable shock-absorption basin-type rubber support system of wireless real-time monitoring |
| CN105755950A (en) * | 2015-12-31 | 2016-07-13 | 同济大学 | Intelligent optical-fiber inhaul-cable damping support system |
| CN205382403U (en) * | 2015-12-31 | 2016-07-13 | 同济大学 | Intelligence cable shock attenuation benzvalene form support |
| CN205443917U (en) * | 2015-12-31 | 2016-08-10 | 同济大学 | Optical fiber sensing stay rope shock absorption support |
| CN205443918U (en) * | 2015-12-31 | 2016-08-10 | 同济大学 | Intelligence stay rope shock absorption support |
| CN205604065U (en) * | 2016-01-19 | 2016-09-28 | 深圳桥智科技有限公司 | Multi -functional intelligent SMA cable subtracts, isolation bearing |
| CN206279444U (en) * | 2016-11-07 | 2017-06-27 | 上海市政工程设计研究总院（集团）有限公司 | Dynamometry plate type rubber support base based on fibre strain sensor |
-
2016
- 2016-11-07 CN CN201610975320.8A patent/CN106400682B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009047582A (en) * | 2007-08-21 | 2009-03-05 | Kawaguchi Metal Industries Co Ltd | Measuring method of vertical load on laminated rubber, and laminated rubber |
| CN102168403A (en) * | 2010-02-26 | 2011-08-31 | 同济大学 | Bridge rubber support system for wireless real-time monitoring |
| CN203947407U (en) * | 2014-04-24 | 2014-11-19 | 柳州东方工程橡胶制品有限公司 | A kind of intelligent shock-isolation neoprene bearing |
| CN104153478A (en) * | 2014-08-12 | 2014-11-19 | 中国十七冶集团有限公司 | Intelligent multi-dimensional seismic mitigation and isolation support |
| CN204570459U (en) * | 2015-03-10 | 2015-08-19 | 同济大学 | A kind of can the bridge cable shock-absorption basin-type rubber support system of wireless real-time monitoring |
| CN105755950A (en) * | 2015-12-31 | 2016-07-13 | 同济大学 | Intelligent optical-fiber inhaul-cable damping support system |
| CN205382403U (en) * | 2015-12-31 | 2016-07-13 | 同济大学 | Intelligence cable shock attenuation benzvalene form support |
| CN205443917U (en) * | 2015-12-31 | 2016-08-10 | 同济大学 | Optical fiber sensing stay rope shock absorption support |
| CN205443918U (en) * | 2015-12-31 | 2016-08-10 | 同济大学 | Intelligence stay rope shock absorption support |
| CN205604065U (en) * | 2016-01-19 | 2016-09-28 | 深圳桥智科技有限公司 | Multi -functional intelligent SMA cable subtracts, isolation bearing |
| CN206279444U (en) * | 2016-11-07 | 2017-06-27 | 上海市政工程设计研究总院（集团）有限公司 | Dynamometry plate type rubber support base based on fibre strain sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277738A (en) * | 2018-01-25 | 2018-07-13 | 上海路博减振科技股份有限公司 | A kind of intelligence lead core rubber support |
| CN108277738B (en) * | 2018-01-25 | 2023-09-01 | 上海路博减振科技股份有限公司 | Intelligent lead rubber support |
| CN115266075A (en) * | 2022-09-26 | 2022-11-01 | 中交第一公路勘察设计研究院有限公司 | Bulging self-sensing plate type support and manufacturing method thereof, monitoring system and monitoring method |
| CN115266075B (en) * | 2022-09-26 | 2023-02-17 | 中交第一公路勘察设计研究院有限公司 | Bulging self-sensing plate type support, manufacturing method, monitoring system and monitoring method |
| WO2024067232A1 (en) * | 2022-09-26 | 2024-04-04 | 中交第一公路勘察设计研究院有限公司 | Optical fiber sensing-based laminated bearing and monitoring system, mounting method, and monitoring method |
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| Publication number | Publication date |
|---|---|
| CN106400682B (en) | 2024-05-03 |
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