CN108061614A - It can carry out the rubber vibration isolation cushion of interfacial stress monitoring and its interfacial stress monitoring system - Google Patents
It can carry out the rubber vibration isolation cushion of interfacial stress monitoring and its interfacial stress monitoring system Download PDFInfo
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- CN108061614A CN108061614A CN201810028154.XA CN201810028154A CN108061614A CN 108061614 A CN108061614 A CN 108061614A CN 201810028154 A CN201810028154 A CN 201810028154A CN 108061614 A CN108061614 A CN 108061614A
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- 238000002955 isolation Methods 0.000 title claims abstract description 79
- 238000012544 monitoring process Methods 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 77
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 42
- 239000010959 steel Substances 0.000 claims abstract description 42
- 230000008054 signal transmission Effects 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 13
- 238000010008 shearing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 239000003292 glue Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 229910052573 porcelain Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses the rubber vibration isolation cushions and its interfacial stress that can carry out interfacial stress monitoring to monitor system, if if the rubber vibration isolation cushion includes dried layer rubber layer, dried layer steel plate layer, several shearing-type piezoceramic transducers, upper sealing plate, lower sealing plate, upper junction plate and lower connecting plate；Alternately superposition forms rubber vibration isolation cushion main body for rubber layer and steel plate layer；The upper and lower surface of rubber vibration isolation cushion main body fixes upper sealing plate and lower sealing plate respectively, and upper junction plate is fixed in the upper surface of upper sealing plate, and lower connecting plate is fixed in the lower surface of lower sealing plate；Several shearing-type piezoceramic transducers are arranged on at least interface of a steel plate layer and rubber layer or several shearing-type piezoceramic transducers are laid on upper sealing plate and/or the interface of lower sealing plate and rubber layer.The present invention is by the interface of shearing-type piezoceramic transducer insertion rubber vibration isolation cushion, the electric signal amplitude generated by comparing shearing-type piezoceramic transducer, you can realizes the efficient monitoring of rubber vibration isolation cushion interfacial stress.
Description
Technical field
The present invention relates to rubber vibration isolation cushion health monitoring technique field more particularly to the rubber of interfacial stress monitoring can be carried out
Isolation cushion and its interfacial stress monitoring system.
Background technology
Up to the present, in the shock insulation engineering of building structure, bridge, equipment etc., the overwhelming majority uses domestic and international application
" laminated rubber bases " seismic isolation technology.Using this technology building or bridge China, Japan, U.S. etc. oneself successfully pass through
By earthquake test.Therefore, it be one it is more ripe, can be with the seismic isolation technology of wide popularization and application.Laminated steel plate and rubber
Layer tight bond to ensure that steel plate constrains the deformation of rubber, makes rubber have higher vertical compression bearing, certain anti-
The ability of drawing ability, larger horizontal deformation and resistance to cyclic reverse loading fatigue.Understand steel plate and the stress shape of rubber interface
State is to ensure the essential condition that rubber vibration isolation cushion is run steadily in the long term, while also can provide science for the design of rubber vibration isolation cushion
Foundation.But in association area, there is no a kind of effective real-time monitoring steel plates and rubber linkage interface stress shape at present
The method of state.
Piezoelectric ceramics is a kind of informational function ceramic material that can convert mechanical energy and electric energy mutually, distinctive with its
Sensing and actuator function, and as in recent years in one of intellectual material that civil engineering field is widely studied and applies.It is because having
Response is fast, wide frequency range, easily cutting, lower-price characteristic, and has huge application to dive in engineering structure monitoring field
Power.
The content of the invention
For rubber vibration isolation cushion light plate layer and the blank of the interfacial stress monitoring technology of rubber layer, the present invention will be by that will cut
Cut type piezoceramic transducer is embedded in rubber vibration isolation cushion, provides rubber vibration isolation cushion and its interface that can carry out interfacial stress monitoring
Stress monitoring system.
The rubber vibration isolation cushion provided by the invention for carrying out interfacial stress monitoring, if if including dried layer rubber layer, dried layer steel
Flaggy, several shearing-type piezoceramic transducers, upper sealing plate, lower sealing plate, upper junction plate and lower connecting plate；Wherein：
Alternately superposition forms rubber vibration isolation cushion main body for rubber layer and steel plate layer, the most last layer of rubber vibration isolation cushion main body and most
Next layer is rubber layer；
The upper and lower surface of rubber vibration isolation cushion main body is respectively fixed with upper sealing plate and lower sealing plate, the upper surface of upper sealing plate
Upper junction plate is fixed with, the lower surface of lower sealing plate is fixed with lower connecting plate；
Several shearing-type piezoceramic transducers are arranged on at least interface of a steel plate layer and rubber layer or several shearings
Type piezoceramic transducer is laid on upper sealing plate and/or the interface of lower sealing plate and rubber layer；
It is disposed with that the steel plate layer of shearing-type piezoceramic transducer, upper sealing plate, lower sealing plate are equipped with and shearing-type piezoelectricity is made pottery
The matched cable passage of porcelain number of sensors, an electric signal transmission cable connect a shearing-type piezoelectric ceramics through a line channel
Sensor.
Further, several shearing-type piezoceramic transducers are laid in at least interface of a steel plate layer and rubber layer
On, it is specially：
If at least the upper surface of a steel plate layer or lower surface offer matched with the shearing-type piezoceramic transducer
Dry groove, a shearing-type piezoceramic transducer built in a groove.
Further, several shearing-type piezoceramic transducers are laid in upper sealing plate and/or lower sealing plate and rubber layer
Interface on, be specially：
The lower surface of upper sealing plate and/or the upper surface of lower sealing plate are offered to be matched with the shearing-type piezoceramic transducer
Several grooves, a shearing-type piezoceramic transducer built in a groove.
Further, the shearing-type piezoceramic transducer is encapsulated using waterproof insulating layer.
Rubber vibration isolation cushion interfacial stress provided by the invention monitors system, including rubber vibration isolation cushion, signal picker and electricity
Brain terminal, wherein：
If if rubber vibration isolation cushion includes dried layer rubber layer, dried layer steel plate layer, several shearing-type piezoceramic transducers, upper envelope
Plate, lower sealing plate, upper junction plate and lower connecting plate；Alternately superposition forms rubber vibration isolation cushion main body, rubber for rubber layer and steel plate layer
The most last layer and basecoat of isolation cushion main body are rubber layer；The upper and lower surface of rubber vibration isolation cushion main body is solid respectively
Surely there are upper sealing plate and lower sealing plate, the upper surface of upper sealing plate is fixed with upper junction plate, and the lower surface of lower sealing plate is fixed with lower connecting plate；
Several shearing-type piezoceramic transducers are arranged on at least interface of a steel plate layer and rubber layer or several shearing-type piezoelectricity pottery
Porcelain sensor is laid on upper sealing plate and/or the interface of lower sealing plate and rubber layer；It is disposed with shearing-type piezoceramic transducer
Steel plate layer, upper sealing plate, lower sealing plate are equipped with the cable passage with shearing-type piezoceramic transducer quantity Matching, and an electric signal passes
Defeated cable connects a shearing-type piezoceramic transducer through a line channel；
Shearing-type piezoceramic transducer connects signal picker by electric signal transmission cable, and signal picker is used for will
The electric signal of reception is converted into digital signal, and passes through digital signal transmission line cable by digital data transmission to computer terminal.
Monitoring method provided by the invention using above-mentioned rubber vibration isolation cushion interfacial stress monitoring system, including：
(1) used shearing-type piezoceramic transducer is demarcated, determines piezoelectric strain constant；
(2) when rubber vibration isolation cushion is in original state, signal picker acquisition shearing-type piezoceramic transducer output
Piezoelectric signal, as reference signal；
(3) when rubber vibration isolation cushion is subject to dynamic shearing to deform, signal picker gathers shearing-type piezoelectric ceramics biography in real time
The piezoelectric signal of sensor output；
(4) according to piezoelectric strain constant, reference signal and the piezoelectric signal gathered in real time, cut using piezoelectric equations calculating
The stress state at interface where cut type piezoceramic transducer.
The basic principle of rubber vibration isolation cushion and rubber vibration isolation cushion interfacial stress monitoring system of the present invention is as follows：
For rubber vibration isolation cushion when generating dynamic level deformation, wherein the interface of steel plate layer and rubber layer can generate shear stress,
The size of shear stress is directly proportional to the degree of horizontal distortion.Shear stress is bigger, electric caused by shearing-type piezoceramic transducer
Signal amplitude also can accordingly become strong.By comparing electric signal amplitude intensity, you can simply and efficiently realize rubber vibration isolation cushion
The real-time monitoring of interfacial stress.
Compared to the prior art, the invention has the advantages that and advantageous effect：
(1) shearing-type piezoceramic transducer is applied to the monitoring of rubber vibration isolation cushion interfacial stress, principle is simply clear and definite, letter
It is single easy to operate, it is of low cost, and monitor accurately, the minor variations of interfacial stress can also be accomplished accurately with monitoring in real time.
(2) the long-term on-line monitoring of rubber vibration isolation cushion interfacial stress state can be achieved, so as to understand rubber vibration isolation cushion in time
Working condition, scientific basis can be provided for the safety evaluation and life prediction of rubber vibration isolation cushion, and rubber vibration isolation cushion can be improved
Security, reduce the security risk as caused by failing rubber vibration isolation cushion and operation risk, to improve shock insulation engineering field it is total
Body economic benefit will generate positive effect.
Description of the drawings
Fig. 1 is the diagrammatic cross-section of rubber vibration isolation cushion in embodiment；
Fig. 2 is the partial cutaway schematic of rubber vibration isolation cushion in Fig. 1；
Fig. 3 is the structure diagram of embodiment median surface stress monitoring system；
Fig. 4 is the overall schematic of embodiment median surface stress monitoring system.
In figure：1- rubber layers, 2- steel plate layers, 3- shearing-type piezoceramic transducers, 4a- upper sealing plates, sealing plate under 4b-, 5a-
Upper junction plate, 5b- lower connecting plates, 6- bolts, 7- reserve connecting hole, 8- cable passages, 9- electric signal transmission cables, 10- signals
Collector, 11- digital signal transmission line cables, 12- computer terminals.
Specific embodiment
In order to illustrate the embodiments of the present invention more clearly and/or technical solution of the prior art, attached drawing will be compareed below
Illustrate the specific embodiment of the present invention.It should be evident that the accompanying drawings in the following description is only the embodiment of the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing, and obtain other embodiments.
By steel plate layer and rubber layer, alternately superposition is formed rubber vibration isolation cushion, and the present invention is by the way that shearing-type piezoelectric ceramics is sensed
Device is embedded on the interface of steel plate layer and rubber layer, has devised a kind of rubber vibration isolation cushion for carrying out interfacial stress monitoring.When
When rubber vibration isolation cushion generates dynamic level deformation, the interface of steel plate layer and rubber layer can generate shear stress, shear stress and rubber
The horizontal distortion degree of glue isolation cushion is directly proportional.That is, shear stress is bigger, electric signal caused by shearing-type piezoceramic transducer
Amplitude can accordingly become strong.Therefore, the electric signal amplitude intensity generated by comparing shearing-type piezoceramic transducer, then may be used
Simply and efficiently realize the monitoring of rubber vibration isolation cushion interfacial stress.
Fig. 1~2 show a kind of concrete structure of rubber vibration isolation cushion of the present invention, if the rubber vibration isolation cushion includes dried layer rubber
If layer 1, dried layer steel plate layer 2, several shearing-type piezoceramic transducers 3, upper sealing plate 4a, lower sealing plate 4b, upper junction plate 5a and
Lower connecting plate 5b.Alternately superposition forms rubber vibration isolation cushion main body, the rubber for several rubber layers 1 and several steel plate layers 2
The most last layer and basecoat of glue isolation cushion main body are rubber layer 1.The upper surface of the rubber vibration isolation cushion main body and following table
Face is respectively fixed with upper sealing plate 4a and lower sealing plate 4b, and the upper surface of the upper sealing plate 4a is fixed with upper junction plate 5a, the lower envelope
The lower surface of plate 4b is fixed with lower connecting plate 5b.More specifically, upper junction plate 5a and lower connecting plate 5b by bolt 6 respectively with it is upper
Sealing plate 4a is fixedly connected with lower sealing plate 4b.In the present embodiment, reserved connecting hole is offered on upper junction plate 5a and lower connecting plate 5b
7。
In rubber vibration isolation cushion of the present invention, the upper surface or lower surface of at least one layer of steel plate layer 2 offer and the shearing-type
The matched several grooves (drawing not in the drawings) of piezoceramic transducer 3, a shearing-type piezoelectric ceramics built in a groove sense
Device 3, surface and the rubber layer 1 of shearing-type piezoceramic transducer 3 fit closely.The shearing-type piezoceramic transducer 3
It can be disposed on the interface of upper sealing plate 4a and/or lower sealing plate 4b and rubber layer 1.Specifically, in the lower surface of upper sealing plate 4a and/or
The upper surface of lower sealing plate 4b offer with the matched several grooves of the shearing-type piezoceramic transducer 3, one built in a groove
Shearing-type piezoceramic transducer 3.The quantity of groove and distribution are determined according to the size and shape of rubber vibration isolation cushion.The present invention
In, shearing-type piezoceramic transducer 3 can be disposed on the interface of a steel plate layer 2 and rubber layer 1, also can be disposed at multiple steel plates
On the interface of layer 2 and rubber layer 1, also it can be disposed on the interface of upper sealing plate 4a and/or lower sealing plate 4b and rubber layer 1.
In the present embodiment, the steel plate layer 2 of shearing-type piezoceramic transducer 3, upper sealing plate 4a are disposed with, on lower sealing plate 4b
Cable passage 8 is additionally provided with by groove, for laying the electric signal transmission cable 9 of connection shearing-type piezoceramic transducer 3, an electricity
Signal transmission cable 9 connects a shearing-type piezoceramic transducer 3 through a line channel 8, so as to by shearing-type piezoelectric ceramics
The electric signal that sensor 3 generates is drawn.As a preferred embodiment, 3 surface of shearing-type piezoceramic transducer in the present embodiment
Coated with waterproof insulating layer, more specifically, which is epoxy resin layer.
Fig. 3~4 show based on above-mentioned rubber vibration isolation cushion rubber vibration isolation cushion interfacial stress monitoring system, including rubber every
Shake pad, signal picker 10 and computer terminal 12, the shearing-type piezoceramic transducer 3 in the rubber vibration isolation cushion pass through telecommunications
Number transmission cable 9 connects the signal picker 10, and the signal picker 10 passes through digital signal transmission line cable 11 and connects institute
State computer terminal 12.In the present embodiment, using BNC, (Bayonet Nut Connector, are clasped electric signal transmission cable 9
Type connector) cable, digital signal transmission line cable 11 is using USB cable.
The monitoring method of rubber vibration isolation cushion interfacial stress monitoring system of the present invention is as follows：
(1) used shearing-type piezoceramic transducer 3 is demarcated, determines piezoelectric strain constant；
(2) when rubber vibration isolation cushion is in original state, that is, when being not affected by dynamic shearing deformation, 10 collecting scissors of signal picker
The piezoelectric signal that cut type piezoceramic transducer 3 exports, as reference signal；
(3) when rubber vibration isolation cushion is subject to dynamic shearing to deform, signal picker 10 gathers shearing-type piezoelectric ceramics in real time
The piezoelectric signal that sensor 3 exports；
(4) according to piezoelectric strain constant, reference signal and the piezoelectric signal gathered in real time, cut using piezoelectric equations calculating
The stress state at 3 place interface of cut type piezoceramic transducer.
For ease of understanding, theory involved in the present invention will be illustrated below.
Shear stress relation between the electric signal of shearing-type piezoceramic transducer generation and interface is as follows：
D=d σ (1)
In formula (1), D represents dielectric displacement tensor；D represents piezoelectric strain constant；σ represents stress tensor.
When the interface of steel plate layer and rubber layer generates dynamic shear force, the shearing-type piezoelectric ceramics sensing of embedded steel plate layer
Device will generate corresponding electric signal.Since electric signal amplitude is directly proportional to shearing force, made pottery by monitoring shearing-type piezoelectricity in real time
The electric signal amplitude of porcelain sensor then can monitor the interfacial shear force of steel plate layer and rubber layer in real time.
The working principle and beneficial effect of interfacial stress monitoring system of the present invention is as follows：
When rubber vibration isolation cushion generates dynamic level deformation, the interface and sealing plate of rubber layer 1 and steel plate layer 2 and rubber layer 1
Interface on can generate shear stress, here sealing plate include upper sealing plate 4a and lower sealing plate 4b；Meanwhile arranged on the shearing-type piezoelectricity at interface
The upper surface of ceramic sensor element 3 can also generate shear stress, and shear stress is changed into electric signal by shearing-type piezoceramic transducer 3.
The electric signal that shearing-type piezoceramic transducer 3 generates is transmitted to the input of signal picker 10 by electric signal transmission cable 9
End, the electric signal of reception is converted into digital signal by signal picker 10, and is passed through digital signal transmission line cable 11 and be transferred to electricity
Brain terminal 12 is simultaneously shown.The amplitude of electric signal is generated by monitoring shearing-type piezoceramic transducer 3, you can reflect rubber indirectly
The microvariations of glue isolation cushion interfacial stress.
The manufacturing process of rubber vibration isolation cushion of the present invention is provided below：
1) surface of steel plate layer 2 or sealing plate opens up matched several symmetrical with shearing-type piezoceramic transducer 3
Groove, and opened up by groove convenient for the cable passage 8 of laying cable.
2) shearing-type piezoceramic transducer 3 is placed in groove, and shearing-type piezoelectric ceramics is encapsulated using epoxide-resin glue
Sensor 3, and the electric signal transmission cable 9 for connecting shearing-type piezoceramic transducer 3 is drawn by cable passage 8.
3) shaped rubber layer 1 is poured, the electric signal transmission cable 9 of extraction is connected to signal picker 10.
Above-described embodiment be used for illustrate the present invention rather than limit the invention, the present invention spirit and
In scope of the claims, any modifications and changes are made to the present invention, both fall within protection scope of the present invention.
Claims (6)
1. the rubber vibration isolation cushion of interfacial stress monitoring can be carried out, it is characterized in that：
If if including dried layer rubber layer, dried layer steel plate layer, several shearing-type piezoceramic transducers, upper sealing plate, lower sealing plate, upper company
Fishplate bar and lower connecting plate；Wherein：
Alternately superposition forms rubber vibration isolation cushion main body for rubber layer and steel plate layer, the most last layer of rubber vibration isolation cushion main body and most next
Layer is rubber layer；
The upper and lower surface of rubber vibration isolation cushion main body is respectively fixed with upper sealing plate and lower sealing plate, and the upper surface of upper sealing plate is fixed
There is upper junction plate, the lower surface of lower sealing plate is fixed with lower connecting plate；
Several shearing-type piezoceramic transducers are arranged on at least interface of a steel plate layer and rubber layer or several shearing-type pressures
Electroceramics sensor is laid on upper sealing plate and/or the interface of lower sealing plate and rubber layer；
It is disposed with that the steel plate layer of shearing-type piezoceramic transducer, upper sealing plate, lower sealing plate are equipped with and shearing-type piezoelectric ceramics passes
The cable passage of sensor quantity Matching, an electric signal transmission cable connect shearing-type piezoelectric ceramics sensing through a line channel
Device.
2. the rubber vibration isolation cushion of interfacial stress monitoring can be carried out as described in claim 1, it is characterized in that：
Several shearing-type piezoceramic transducers are laid on at least interface of a steel plate layer and rubber layer, are specially：
At least the upper surface of a steel plate layer or lower surface offer matched several recessed with the shearing-type piezoceramic transducer
Slot, a shearing-type piezoceramic transducer built in a groove.
3. the rubber vibration isolation cushion of interfacial stress monitoring can be carried out as described in claim 1, it is characterized in that：
Several shearing-type piezoceramic transducers are laid on upper sealing plate and/or the interface of lower sealing plate and rubber layer, specifically
For：
If the lower surface of upper sealing plate and/or the upper surface of lower sealing plate offer matched with the shearing-type piezoceramic transducer
Dry groove, a shearing-type piezoceramic transducer built in a groove.
4. the rubber vibration isolation cushion of interfacial stress monitoring can be carried out as described in claim 1, it is characterized in that：
The shearing-type piezoceramic transducer is encapsulated using waterproof insulating layer.
5. rubber vibration isolation cushion interfacial stress monitors system, it is characterized in that：
Including rubber vibration isolation cushion, signal picker and computer terminal, wherein：
If if rubber vibration isolation cushion include dried layer rubber layer, dried layer steel plate layer, several shearing-type piezoceramic transducers, upper sealing plate,
Lower sealing plate, upper junction plate and lower connecting plate；Alternately superposition forms rubber vibration isolation cushion main body, rubber vibration isolation for rubber layer and steel plate layer
The most last layer and basecoat for padding main body are rubber layer；The upper and lower surface of rubber vibration isolation cushion main body is respectively fixed with
Upper sealing plate and lower sealing plate, the upper surface of upper sealing plate are fixed with upper junction plate, and the lower surface of lower sealing plate is fixed with lower connecting plate；It is several
Shearing-type piezoceramic transducer is arranged on at least interface of a steel plate layer and rubber layer or several shearing-type piezoelectric ceramics pass
Sensor is laid on upper sealing plate and/or the interface of lower sealing plate and rubber layer；It is disposed with the steel plate of shearing-type piezoceramic transducer
Layer, upper sealing plate, lower sealing plate are equipped with the cable passage with shearing-type piezoceramic transducer quantity Matching, an electrical signal transmission line
Cable connects a shearing-type piezoceramic transducer through a line channel；
Shearing-type piezoceramic transducer connects signal picker by electric signal transmission cable, and signal picker is used for receive
Electric signal be converted into digital signal, and pass through digital signal transmission line cable by digital data transmission to computer terminal.
6. using the monitoring method of the rubber vibration isolation cushion interfacial stress monitoring system described in claim 5, it is characterized in that, including：
(1) used shearing-type piezoceramic transducer is demarcated, determines piezoelectric strain constant；
(2) when rubber vibration isolation cushion is in original state, the piezoelectricity of signal picker acquisition shearing-type piezoceramic transducer output
Signal, as reference signal；
(3) when rubber vibration isolation cushion is subject to dynamic shearing to deform, signal picker gathers shearing-type piezoceramic transducer in real time
The piezoelectric signal of output；
(4) according to piezoelectric strain constant, reference signal and the piezoelectric signal gathered in real time, shearing-type is calculated using piezoelectric equations
The stress state at interface where piezoceramic transducer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810028154.XA CN108061614A (en) | 2018-01-11 | 2018-01-11 | It can carry out the rubber vibration isolation cushion of interfacial stress monitoring and its interfacial stress monitoring system |
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| CN201810028154.XA CN108061614A (en) | 2018-01-11 | 2018-01-11 | It can carry out the rubber vibration isolation cushion of interfacial stress monitoring and its interfacial stress monitoring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109632154A (en) * | 2019-01-31 | 2019-04-16 | 苏州美仑凯力电子有限公司 | A kind of vibration isolator rubber bearing real-time testing system and preparation method thereof |
| CN109632153A (en) * | 2019-01-31 | 2019-04-16 | 苏州美仑凯力电子有限公司 | A kind of vibration isolator rubber bearing vertical load and the method for real-timely testing of horizontal displacement |
| CN113188905A (en) * | 2021-04-13 | 2021-07-30 | 西安航天动力技术研究所 | Laminated rubber shock-insulation support health monitoring method based on optical fiber sensor |
| CN114278693A (en) * | 2021-11-17 | 2022-04-05 | 浙江天铁实业股份有限公司 | Track damping pad of implanted monitoring |
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| CN204325906U (en) * | 2014-12-04 | 2015-05-13 | 浙江秦山橡胶工程股份有限公司 | Antidetonation laminated rubber bearing |
| CN204988568U (en) * | 2015-09-22 | 2016-01-20 | 交通运输部公路科学研究所 | A device for measuring abutment pressure |
| CN105442437A (en) * | 2015-11-06 | 2016-03-30 | 东南大学 | Shock insulation rubber support with working property parameters capable of being monitored and recognized |
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| CN109632154A (en) * | 2019-01-31 | 2019-04-16 | 苏州美仑凯力电子有限公司 | A kind of vibration isolator rubber bearing real-time testing system and preparation method thereof |
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