CN109632153B - Real-time testing method for vertical load and horizontal displacement of shock insulation rubber support - Google Patents
Real-time testing method for vertical load and horizontal displacement of shock insulation rubber support Download PDFInfo
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- CN109632153B CN109632153B CN201910098679.5A CN201910098679A CN109632153B CN 109632153 B CN109632153 B CN 109632153B CN 201910098679 A CN201910098679 A CN 201910098679A CN 109632153 B CN109632153 B CN 109632153B
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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
- G01L1/02—Measuring force or stress, in general by hydraulic or pneumatic means
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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
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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Abstract
The invention discloses a real-time testing method for vertical load and horizontal displacement of a shock insulation rubber support. According to the invention, a calibration relation equation is constructed by the values of the vertical compressive stress of the oil-filled core body pressure sensors and the vertical load, the horizontal displacement and the direction of the shock insulation rubber support, the vertical load and the horizontal displacement of the shock insulation rubber support are solved, a good linear relation is obtained, and stable and accurate measurement can be realized; an oil-filled core body pressure sensor which can be embedded into a shock insulation rubber support is adopted, so that the influence of an earthquake or extremely severe weather on a testing device is eliminated; an anti-shearing passage is designed and processed in the shock insulation rubber support, so that the signal transmission lead is protected from being damaged when the support is horizontally deformed; the real-time monitoring of vertical load and horizontal displacement of the shock insulation rubber support is realized, and a plurality of shock insulation rubber supports can be monitored in a networking mode.
Description
Technical Field
The invention relates to a vibration isolation rubber support detection technology, in particular to a real-time test method for vertical load and horizontal displacement of a vibration isolation rubber support.
Background
In the field of building shock insulation, the shock insulation rubber support has very wide application, and when an earthquake occurs, the support generates horizontal displacement to reduce the influence of the earthquake on a building and play a role in shock absorption, so that the health monitoring of the shock insulation rubber support is very important. At present, the vibration isolation rubber support is monitored by adopting a manual regular inspection mode, and whether the support is damaged or not is judged from the appearance. However, the method is difficult to measure the size of the vertical load borne by the shock insulation rubber support, the horizontal displacement of the shock insulation rubber support under the influence of the earthquake is recovered after the earthquake is finished, and the size of the horizontal displacement of the shock insulation rubber support in the earthquake process is difficult to obtain through detection. Therefore, the monitoring means has low efficiency and large error, and is difficult to find the problems in the support, so that great hidden danger exists. The change of the vertical load and the horizontal displacement of the vibration isolation rubber support in the earthquake process can reflect the health condition of the support after the earthquake and record the earthquake strength to a certain extent, and can also be used for monitoring the safety of the building in real time, so that the vibration isolation rubber support has great significance for the real-time measurement of the vertical load and the horizontal displacement of the vibration isolation rubber support. However, no suitable technology is available for testing the vertical load and the horizontal displacement of the shock insulation rubber support in real time at present.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a real-time testing method for the horizontal displacement of a shock insulation rubber support, which solves the problem that the vertical load and the horizontal displacement of the shock insulation rubber support are difficult to measure in real time.
The invention discloses a real-time testing method for horizontal displacement of a vibration isolation rubber support, which comprises the following steps of:
1) providing an oil filled core pressure sensor;
2) n sensor placing holes are formed in a steel plate or a lower support plate which is positioned on the lower surface of a rubber sheet to be measured of the shock insulation rubber support, wherein n is a natural number which is more than or equal to 3;
3) a shear-proof passage is arranged in the steel plate or the lower connecting plate provided with the sensor mounting hole, one end of the shear-proof passage is connected to the sensor mounting hole, and the other end of the shear-proof passage is connected to the edge of the shock-insulation rubber support;
4) embedding n oil-filled core body pressure sensors into corresponding sensor mounting holes;
5) covering a rubber sheet to be measured on the upper surface of the oil-filled core body pressure sensor, overlapping a plurality of rubber sheets and a plurality of steel plates to form a laminated structure, and forming a through hole in the center, wherein the laminated structure is fixed between an upper connecting plate and a lower connecting plate to form a shock insulation rubber support;
6) one end of a signal transmission wire is connected with a pin of the oil-filled core body pressure sensor, and the other end of the signal transmission wire is connected to a signal processing circuit through a shear-proof passage;
7) the signal processing circuit is connected to a computer terminal, and the computer terminal is connected with a cloud terminal through a network;
8) calibrating the vertical load and the horizontal displacement of the shock insulation rubber support and the vertical compressive stress value of the oil-filled core pressure sensor to obtain a set of calibration relation equations;
9) the n oil-filled core body pressure sensors collect vertical pressure stress signals of rubber sheets in the shock insulation rubber support at corresponding positions and transmit the vertical pressure stress signals to the signal processing circuit;
10) the signal processing circuit is used for processing signals and then transmitting the signals to a computer;
11) the computer obtains a vertical compressive stress value and a vertical compressive stress value P of the ith oil-filled core body pressure sensor according to the vertical compressive stress signali，i＝1,……,n；
12) Obtaining a group of equation sets related to the vertical load and the horizontal displacement of the vibration isolation rubber support according to a calibration relation equation, and solving the equation sets to obtain the vertical load P, the horizontal displacement X and the horizontal displacement theta of the vibration isolation rubber support;
13) and transmitting the result to a cloud end, thereby performing information networking analysis on a plurality of shock insulation rubber supports and performing data sharing.
In step 1), providing an oil filled core pressure sensor comprises the steps of:
a) the pressure sensitive element is arranged in the cavity, and the cavity is filled with insulating liquid;
b) the bottom wall of the cavity is provided with a pin extending out of the cavity;
c) fastening a sealing ring on the outer side wall of the cavity;
d) covering a membrane on the top end of the cavity;
e) a pressure ring is fixedly arranged on the diaphragm;
f) filling a material with a flowable first buffer layer in the compression ring, removing bubbles, and forming an elastic first buffer layer after solidification, wherein the thickness of the first buffer layer is not more than the height of the compression ring;
g) coating a material of a second buffer layer with fluidity on the first buffer layer, and forming the second buffer layer with elasticity and hardness after curing;
h) and connecting the electrode of the pressure sensitive element with the pin of the cavity.
In the step 8), the vertical load, the horizontal displacement and the direction of the vibration isolation rubber support and the test value of the oil-filled core body pressure sensor are calibrated, and the method comprises the following steps:
a) applying determined vertical load and horizontal displacement to the shock insulation rubber support, wherein the direction and the size of the horizontal displacement are known;
b) the n oil-filled core body pressure sensors collect vertical pressure stress signals and transmit the vertical pressure stress signals to the signal processing circuit;
c) the signal processing circuit is used for processing signals and then transmitting the signals to a computer;
d) the computer obtains the vertical compressive stress value of the ith oil-filled core body pressure sensor according to the vertical compressive stress signal
i＝1,……,n；
e) Changing the magnitude and direction of the applied vertical load and horizontal displacement, and repeating the steps a) to d) to obtain a plurality of groups of data of the vertical load, the horizontal displacement and the vertical compressive stress;
f) fitting to obtain a set of calibration relation equations according to a plurality of sets of data of the vertical compressive stress, wherein the calibration relation equation of the ith oil-filled core body pressure sensor is Pi＝fi(P,θ,X)＝(aiPcosθ+biPsinθ+cicosθ+disinθ)X+kiP, i ═ 1, … …, n, where P is the vertical load, X is the magnitude of the horizontal displacement, and θ is the square of the horizontal displacementTo, ai、bi、ci、diAnd kiIs a calibration coefficient.
The shock insulation rubber support comprises an upper connecting plate, a rubber sheet, a steel plate and a lower connecting plate; wherein, a plurality of rubber sheets and a plurality of steel plates are mutually overlapped to form a laminated structure, a through hole is arranged at the center, and the laminated structure is fixed between the upper connecting plate and the lower connecting plate.
The invention discloses a real-time testing system for vertical load and horizontal displacement of a shock insulation rubber support, which comprises: the system comprises more than three oil-filled core body pressure sensors, an anti-shearing passage, a signal transmission wire, a signal processing circuit, a computer terminal and a cloud end; the oil-filled core body pressure sensor comprises a cavity, a pressure sensitive element, a diaphragm, insulating liquid, a sealing ring, a pressing ring, a first buffer layer and a second buffer layer, wherein the pressure sensitive element is placed in the cavity, the cavity is filled with the insulating liquid, the top end of the cavity is covered with the diaphragm, the outer side wall of the cavity is provided with the sealing ring, the pressing ring is fixedly arranged on the diaphragm, the pressing ring is filled with the first buffer layer, the first buffer layer is made of a material which has good fluidity before curing and elastic after curing, the thickness of the first buffer layer is not more than the height of the pressing ring, the second buffer layer is covered on the first buffer layer and made of a material which has good fluidity before curing and elastic after curing, the hardness of the second buffer layer is more than that of the first buffer layer, and an electrode of the pressure sensitive element is; n sensor mounting holes are formed in a steel plate or a lower connecting plate which is positioned on the lower surface of a rubber sheet to be measured of the shock insulation rubber support; the oil-filled core body pressure sensor is embedded into a corresponding sensor mounting hole; the upper surface of the oil-filled core body pressure sensor is tightly attached to the lower surface of the measured rubber sheet; a shear-proof passage is arranged in a steel plate or a lower connecting plate provided with the oil-filled core body pressure sensor; one end of the signal transmission wire is connected with a pin of the oil-filled core body pressure sensor, and the other end of the signal transmission wire is connected to the signal processing circuit through the anti-shearing passage; the signal processing circuit is connected to the computer terminal; the computer terminal is connected with the cloud through a network. The first buffer layer is made of silicone gel; the second buffer layer is made of silicon rubber, wherein n is a natural number not less than 3.
The invention has the advantages that:
according to the invention, a calibration relation equation is constructed by the values of the vertical compressive stress of more than three oil-filled core body pressure sensors and the vertical load, the horizontal displacement and the direction of the shock insulation rubber support, the vertical load and the horizontal displacement of the shock insulation rubber support are solved, a good linear relation is obtained, and stable and accurate measurement can be realized; an oil-filled core body pressure sensor which can be embedded into a shock insulation rubber support is adopted, so that the influence of an earthquake or extremely severe weather on a testing device is eliminated; an anti-shearing passage is designed and processed in the shock insulation rubber support, so that the signal transmission lead is protected from being damaged when the support is horizontally deformed; the real-time monitoring of vertical load and horizontal displacement of the shock insulation rubber support is realized, and a plurality of shock insulation rubber supports can be monitored in a networking mode.
Drawings
FIG. 1 is a schematic structural diagram of a seismic isolation rubber bearing subjected to axial compression and horizontal displacement in the real-time testing method for the horizontal displacement of the seismic isolation rubber bearing, wherein (a) is a schematic diagram of only the axial compression, and (b) is a schematic structural diagram of the seismic isolation rubber bearing subjected to axial compression P and horizontal displacement X;
FIG. 2 is a distribution schematic diagram of an oil-filled core pressure sensor of the real-time testing method for horizontal displacement of the vibration isolation rubber support of the invention;
FIG. 3 shows that when the horizontal displacement X is equal to 0, the vertical compressive stress P of a certain test point in the rubber sheet is obtained by the real-time test method for the vertical load and the horizontal displacement of the seismic isolation rubber support1A relation curve chart of the vertical load P borne by the shock insulation rubber support;
FIG. 4 is a vertical compressive stress value P of a test point of a rubber sheet under a certain fixed vertical load, which is obtained by the real-time test method for the vertical load and the horizontal displacement of the vibration isolation rubber support according to the invention1A relation curve chart of the horizontal displacement X of the shock insulation rubber support;
FIG. 5 is a general schematic diagram of an embodiment of the system for real-time measurement of horizontal displacement of the seismic isolation rubber bearing of the present invention;
FIG. 6 is a partially enlarged view of an oil filled core pressure sensor of an embodiment of the system for real-time measurement of horizontal displacement of the seismic isolation rubber bearing of the invention.
Detailed Description
The invention will be further elucidated by means of specific embodiments in the following with reference to the drawing.
In this embodiment, three oil filled core pressure sensors are employed.
As shown in fig. 1(a), when the vibration isolation rubber support is only axially compressed, the vertical compressive stress of the vibration isolation rubber support is annularly distributed, and the vertical compressive stress of the vibration isolation rubber support is the same as the vertical compressive stress of a point with the same distance with the center of the rubber support. As shown in fig. 1(b), the axial compression of the shock insulation rubber support is P, and when the horizontal displacement X occurs simultaneously, the vertical compressive stress distribution in the shock insulation rubber support changes when being compared with the axial compression only, and along the horizontal displacement direction of the shock insulation rubber support, the vertical compressive stress on one side becomes large, and the vertical compressive stress on the other side becomes small.
The real-time testing method for the horizontal displacement of the vibration isolation rubber support comprises the following steps:
1) providing an oil filled core pressure sensor:
a) the pressure sensitive element is arranged in the cavity, and the cavity is filled with insulating liquid;
b) connecting an electrode of the pressure sensitive element with a pin of the cavity;
c) covering a membrane on the top end of the cavity;
d) a sealing ring is arranged on the outer side wall of the cavity;
e) a pressure ring is fixedly arranged on the diaphragm;
f) filling a material of the first buffer layer with fluidity in the pressure ring, removing bubbles, and forming the first buffer layer with elasticity after solidification, wherein the thickness of the first buffer layer does not exceed the height of the pressure ring;
g) coating a material of a second buffer layer with fluidity on the first buffer layer, and forming the second buffer layer with elasticity after curing, wherein the hardness of the second buffer layer is higher than that of the first buffer layer and lower than that of rubber;
2) 3 sensor placing holes are formed in a steel plate or a lower support plate which is positioned on the lower surface of a rubber sheet to be measured of the shock insulation rubber support;
3) a shear-proof passage is arranged in the steel plate or the lower connecting plate provided with the sensor mounting hole, one end of the shear-proof passage is connected to the sensor mounting hole, and the other end of the shear-proof passage is connected to the edge of the shock-insulation rubber support;
4) three oil-filled core pressure sensors S1～S3A plurality of sensors are embedded in the corresponding sensor mounting holes as shown in FIG. 2;
5) covering a rubber sheet to be measured on the upper surface of the oil-filled core body pressure sensor, overlapping a plurality of rubber sheets and a plurality of steel plates to form a laminated structure, and forming a through hole in the center, wherein the laminated structure is fixed between an upper connecting plate and a lower connecting plate to form a shock insulation rubber support;
6) one end of a signal transmission wire is connected with a pin of the oil-filled core body pressure sensor, and the other end of the signal transmission wire is connected to a signal processing circuit through a shear-proof passage;
7) the signal processing circuit is connected to a computer terminal, and the computer terminal is connected with a cloud terminal through a network;
8) calibrating the vertical load and the horizontal displacement of the shock insulation rubber support and the vertical compressive stress value of the oil-filled core pressure sensor to obtain a set of calibration relation equations;
a) applying determined vertical load and horizontal displacement to the shock insulation rubber support, wherein the direction and the size of the horizontal displacement are known;
b) the three oil-filled core body pressure sensors collect vertical pressure stress signals and transmit the vertical pressure stress signals to the signal processing circuit;
c) the signal processing circuit is used for processing signals and then transmitting the signals to a computer;
d) the computer respectively obtains the vertical compressive stress values of the three oil-filled core body pressure sensors according to the vertical compressive stress signals
e) Changing the magnitude and direction of the applied vertical load and horizontal displacement, and repeating the steps a) to g) to obtain a plurality of groups of data of the vertical load, the horizontal displacement and the vertical compressive stress;
f) according to the data of the multiple groups of values and the vertical compressive stress values, fitting to obtain a group of calibration relation equations:
P1＝f1(P,θ,X)＝(a1Pcosθ+b1Psinθ+c1cosθ+d1sinθ)X+k1P
P2＝f2(P,θ,X)＝(a2Pcosθ+b2Psinθ+c2cosθ+d2sinθ)X+k2P
P3＝f3(P,θ,X)＝(a3Pcosθ+b3Psinθ+c3cosθ+d3sinθ)X+k3P
p is the vertical load, X is the magnitude of the horizontal displacement, θ is the direction of the horizontal displacement, i is 1, 2 and 3,
a1、a2、a3、b1、b2、b3、c1、c2、c3、d1·、d2、d3、k1、k2and k3The calibration coefficient is obtained by fitting;
9)3 oil-filled core body pressure sensors collect vertical pressure stress signals of rubber sheets in the shock insulation rubber support at corresponding positions and transmit the signals to a signal processing circuit;
10) the signal processing circuit is used for processing signals and then transmitting the signals to a computer;
11) the computer obtains the vertical compressive stress value P of the 3 oil-filled core body pressure sensors according to the vertical compressive stress signal1～P3；
12) Obtaining a group of equation sets related to the vertical load and the horizontal displacement of the vibration isolation rubber support according to a calibration relation equation, and solving the equation sets to obtain the vertical load P, the horizontal displacement X and the horizontal displacement theta of the vibration isolation rubber support;
13) and transmitting the result to a cloud end, thereby performing information networking analysis on a plurality of shock insulation rubber supports and performing data sharing.
FIG. 3 is a perspective view of a hair dryer according to the present inventionVertical compressive stress P of certain test point in rubber sheet obtained by real-time test method of vertical load and horizontal displacement of exposed shock insulation rubber support1A relation curve chart of the vertical load P borne by the shock insulation rubber support;
FIG. 4 is a vertical compressive stress value P of a certain test point of a rubber sheet obtained by the real-time test method for vertical load and horizontal displacement of the vibration isolation rubber support1A relation curve chart of the horizontal displacement X of the shock insulation rubber support;
as shown in fig. 5, the shock insulation rubber support comprises an upper connecting plate 01, a rubber sheet 02, a steel plate 03 and a lower connecting plate 04; wherein, a plurality of rubber sheets and a plurality of steel plates are mutually overlapped to form a laminated structure, a through hole 05 is formed in the center, and the laminated structure is fixed between the upper connecting plate and the lower connecting plate. The real-time test system for measuring the horizontal displacement of the vibration isolation rubber support comprises: the system comprises more than three oil-filled core body pressure sensors 1, an anti-shearing passage 2, a signal transmission wire 3, a signal processing circuit 4, a computer terminal 5 and a cloud end 6; the oil-filled core body pressure sensor is arranged in a steel plate or a lower connecting plate which is positioned on the lower surface of a rubber sheet to be measured of the shock insulation rubber support, and 3 sensor mounting holes are formed in the steel plate or the lower connecting plate; each oil-filled core body pressure sensor is embedded into a corresponding pair of sensor mounting holes, and the upper surface of the oil-filled core body pressure sensor is tightly attached to the lower surface of a measured rubber sheet; a shear-proof passage is arranged in a steel plate or a lower connecting plate provided with the oil-filled core body pressure sensor; one end of the signal transmission wire is connected with a pin of the oil-filled core body pressure sensor, and the other end of the signal transmission wire is connected to the signal processing circuit through the anti-shearing passage; the signal processing circuit is connected to the computer terminal; the computer terminal is connected with the cloud through a network.
As shown in fig. 6, the oil-filled core pressure sensor includes a cavity 11, a pressure sensitive element 12, a diaphragm 13, an insulating liquid 14, a ring seal 15, a pressure ring 16, a first buffer layer 17 and a second buffer layer 18, the pressure sensitive element is placed in the cavity, the cavity is filled with the insulating liquid, the top end of the cavity covers the diaphragm, a sealing ring is arranged on the outer side wall of the cavity, the pressure ring is fixedly arranged on the diaphragm, the first buffer layer is filled in the pressure ring, the thickness of the first buffer layer does not exceed the height of the pressure ring, the second buffer layer covers the first buffer layer, and a pin 19 extends out of the cavity. The insulating liquid 14 is silicone oil.
Finally, it is noted that the disclosed embodiments are intended to aid in further understanding of the invention, but those skilled in the art will appreciate that: various substitutions and modifications are possible without departing from the spirit and scope of the invention and the appended claims. Therefore, the invention should not be limited to the embodiments disclosed, but the scope of the invention is defined by the appended claims.
Claims (3)
1. A real-time testing method for horizontal displacement of a vibration isolation rubber support is characterized by comprising the following steps:
1) providing an oil filled core pressure sensor:
a) the pressure sensitive element is arranged in the cavity, and the cavity is filled with insulating liquid;
b) the bottom wall of the cavity is provided with a pin extending out of the cavity;
c) fastening a sealing ring on the outer side wall of the cavity;
d) covering a membrane on the top end of the cavity;
e) a pressure ring is fixedly arranged on the diaphragm;
f) filling a material with a flowable first buffer layer in the compression ring, removing bubbles, and forming an elastic first buffer layer after solidification, wherein the thickness of the first buffer layer is not more than the height of the compression ring;
g) coating a material of a second buffer layer with fluidity on the first buffer layer, and forming the second buffer layer with elasticity and hardness after curing;
h) connecting an electrode of the pressure sensitive element with a pin of the cavity;
2) n sensor placing holes are formed in a steel plate or a lower support plate which is positioned on the lower surface of a rubber sheet to be measured of the shock insulation rubber support, wherein n is a natural number which is more than or equal to 3;
3) a shear-proof passage is arranged in the steel plate or the lower connecting plate provided with the sensor mounting hole, one end of the shear-proof passage is connected to the sensor mounting hole, and the other end of the shear-proof passage is connected to the edge of the shock-insulation rubber support;
4) embedding n oil-filled core body pressure sensors into corresponding sensor mounting holes;
5) covering a rubber sheet to be measured on the upper surface of the oil-filled core body pressure sensor, overlapping a plurality of rubber sheets and a plurality of steel plates to form a laminated structure, and forming a through hole in the center, wherein the laminated structure is fixed between an upper connecting plate and a lower connecting plate to form a shock insulation rubber support;
6) one end of a signal transmission wire is connected with a pin of the oil-filled core body pressure sensor, and the other end of the signal transmission wire is connected to a signal processing circuit through a shear-proof passage;
7) the signal processing circuit is connected to a computer terminal, and the computer terminal is connected with a cloud terminal through a network;
8) calibrating the vertical load and the horizontal displacement of the shock insulation rubber support and the vertical compressive stress value of the oil-filled core pressure sensor to obtain a set of calibration relation equations;
9) the n oil-filled core body pressure sensors collect vertical pressure stress signals of rubber sheets in the shock insulation rubber support at corresponding positions and transmit the vertical pressure stress signals to the signal processing circuit;
10) the signal processing circuit is used for processing signals and then transmitting the signals to a computer;
11) the computer obtains a vertical compressive stress value and a vertical compressive stress value P of the ith oil-filled core body pressure sensor according to the vertical compressive stress signali，i＝1,……,n；
12) Obtaining a group of equation sets related to the vertical load and the horizontal displacement of the vibration isolation rubber support according to a calibration relation equation, and solving the equation sets to obtain the vertical load P, the horizontal displacement X and the horizontal displacement theta of the vibration isolation rubber support;
13) and transmitting the result to a cloud end, thereby performing information networking analysis on a plurality of shock insulation rubber supports and performing data sharing.
2. The real-time testing method of claim 1, wherein in the step 8), the vertical load, the horizontal displacement and the direction of the vibration isolation rubber support and the testing value of the oil-filled core pressure sensor are calibrated, and the method comprises the following steps:
a) applying determined vertical load and horizontal displacement to the shock insulation rubber support, wherein the direction and the size of the horizontal displacement are known;
b) the n oil-filled core body pressure sensors collect vertical pressure stress signals and transmit the vertical pressure stress signals to the signal processing circuit;
c) the signal processing circuit is used for processing signals and then transmitting the signals to a computer;
d) the computer obtains the vertical compressive stress value of the ith oil-filled core body pressure sensor according to the vertical compressive stress signal
e) Changing the magnitude and direction of the applied vertical load and horizontal displacement, and repeating the steps a) to d) to obtain a plurality of groups of data of the vertical load, the horizontal displacement and the vertical compressive stress;
f) fitting to obtain a set of calibration relation equations according to a plurality of sets of data of the vertical compressive stress, wherein the calibration relation equation of the ith oil-filled core body pressure sensor is Pi＝fi(P，θ，X)。
3. The real-time testing method of claim 2, wherein in step f), fi(P，θ，X)＝(aiPcosθ+biPsinθ+cicosθ+disinθ)X+kiP, i ═ 1, … …, n, where P is the vertical load, X is the magnitude of the horizontal displacement, θ is the direction of the horizontal displacement, ai、bi、ci、diAnd kiIs a calibration coefficient.
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| CN113267446B (en) * | 2021-05-11 | 2022-12-02 | 北京建筑大学 | Device and method for rapidly detecting internal force of rubber support |
| CN114993833B (en) * | 2022-08-03 | 2022-11-15 | 广州大学 | Prestress detection system and detection method for prestress rubber shock insulation support |
| CN115977255A (en) * | 2022-09-23 | 2023-04-18 | 北京固力同创工程科技有限公司 | Rubber shock insulation support capable of realizing displacement monitoring with six degrees of freedom |
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| CN105442437B (en) * | 2015-11-06 | 2017-04-05 | 东南大学 | The shock insulation rubber bearing that a kind of working parameters can be monitored and be recognized |
| KR20170119951A (en) * | 2016-04-20 | 2017-10-30 | 주식회사 구주엔지니어링 | Method to measure displacement of elastomeric bearing using window tablet and AHRS sensor |
| CN106768592A (en) * | 2017-02-24 | 2017-05-31 | 中国电子科技集团公司第三十八研究所 | A kind of pressure transmitter oil filling core body of band signal processing function |
| CN106959175B (en) * | 2017-03-21 | 2019-07-19 | 合肥工业大学 | A kind of sliding touch sensor of the Grazing condition condenser type based on pyramid structure |
| CN107144391A (en) * | 2017-07-10 | 2017-09-08 | 深圳瑞德感知科技有限公司 | A kind of integrated form MEMS oil-filled pressure transducers |
| CN108061614A (en) * | 2018-01-11 | 2018-05-22 | 湖北震泰建设工程质量检测有限责任公司 | It can carry out the rubber vibration isolation cushion of interfacial stress monitoring and its interfacial stress monitoring system |
| CN207779591U (en) * | 2018-01-11 | 2018-08-28 | 湖北震泰建设工程质量检测有限责任公司 | It can carry out the rubber vibration isolation cushion and its interfacial stress monitoring system of interfacial stress monitoring |
| CN108613761A (en) * | 2018-04-27 | 2018-10-02 | 电子科技大学 | A kind of flexible 3 D contact force sensor |
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