CN115436183B - Deformation detection system and method for cavity rubber material under simulated deepwater high-pressure environment - Google Patents
Deformation detection system and method for cavity rubber material under simulated deepwater high-pressure environment Download PDFInfo
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- CN115436183B CN115436183B CN202211395534.XA CN202211395534A CN115436183B CN 115436183 B CN115436183 B CN 115436183B CN 202211395534 A CN202211395534 A CN 202211395534A CN 115436183 B CN115436183 B CN 115436183B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a deformation detection system and method for simulating a cavity rubber material in a deepwater high-pressure environment. The system comprises a pressure test simulation cabin; one side of the pressure test simulation cabin is connected with a water injection pipe, and the water injection pipe is connected with a water supply end through a booster pump; a test piece steel plate is arranged in the pressure test simulation cabin, and the top of the test piece steel plate is bonded with a cavity rubber test piece through an adhesive; and a miniature binocular camera is mounted on the test piece steel plate and is positioned in the cavity. According to the invention, through the arrangement of the test piece steel plate and the cavity rubber test piece hung in the pressure test simulation cabin, a high-pressure state is provided for the interior of the pressure test simulation cabin through the pressure pump, the real environment of the cavity rubber test piece in the deep water high-pressure environment can be simulated, the deformation condition of the interior of the cavity rubber test piece is collected through the miniature binocular camera, and the deformation image of the interior cavity containing the cavity rubber material in the deep water high-pressure environment can be effectively obtained.
Description
Technical Field
The invention relates to the technical field of sound absorption rubber high-pressure deformation detection, in particular to a deformation detection system and method for simulating a cavity rubber material in a deep water high-pressure environment.
Background
In the field of sound absorption, a plurality of small cavity structures are often designed in some sound absorption materials to achieve a better sound absorption effect, and the sound absorption materials are uniformly covered on the surface of an object in use to achieve excellent sound absorption performance. Under some high pressure environment, the cavity in the material can be extruded to outside pressure, leads to the inside cavity of material to take place to warp, and the deformation of inside cavity is very big to the sound absorption performance influence of material.
In a deepwater high-pressure environment, the internal deformation of the rubber material containing the cavity is crucial to the rubber material to exert the sound absorption and insulation performance, and no corresponding method or means for testing the internal cavity deformation exists at present. On one hand, because the rubber material is adhered to the outside of the equipment, the schematic diagram is shown in fig. 1, the cavity is sealed inside and cannot be directly observed from the outside, and the deformation of the outside is completely different from that of the inside cavity, so that the internal deformation condition cannot be obtained according to the external deformation; on one hand, because the cavity is small, a plurality of deformation test sensors (such as strain gauges) cannot be pasted, and other devices such as laser deformation measurement equipment cannot be installed due to large size. Therefore, the problem of the shape of the inner cavity of the rubber material containing the cavity under the deep water high-pressure environment cannot be solved at present.
Based on the current research situation, it can be seen that, because the inner cavity of the rubber material is smaller, when the rubber material bears water pressure, the inner cavity can deform to different degrees under the action of the pressure, so that the acoustic performance of the rubber material is greatly influenced, and therefore, the shape of deformation in the inner cavity of the rubber part under the underwater high-pressure condition is obtained to be of great importance. There has been no study on this aspect.
Disclosure of Invention
The invention aims to provide a deformation detection system and a method for simulating a cavity rubber material in a deep water high-pressure environment.
In order to achieve the above object, according to one aspect of the present invention, there is provided a deformation detection system for simulating a cavity rubber material in a deep water high pressure environment, comprising a cavity rubber test piece, a pressure test simulation chamber, a plurality of cavities arranged in the cavity rubber test piece;
one side of the pressure test simulation cabin is connected with a water injection pipe, the water injection pipe is connected with a water supply end through a pressure pump, an injection mechanism is controlled to inject water into the pressure test simulation cabin, the pressure in the cabin is monitored in real time until a tested pressure value is reached, and a deepwater high-pressure simulation test environment of the cavity rubber test piece is established;
a test piece steel plate is arranged in the pressure test simulation cabin, and the top of the test piece steel plate is bonded with the cavity rubber test piece through an adhesive;
a plurality of through holes corresponding to the cavities are formed in the test piece steel plate;
a miniature binocular camera is mounted above the through hole and is positioned in the cavity;
the miniature binocular camera carries out data connection through a data connecting wire and external terminal, accurate control miniature binocular camera adopts the inside deformation image of cavity rubber test piece in real time and transmits for external terminal, and external terminal analyzes in real time the deformation characteristic of cavity rubber test piece under deep water high pressure environment.
Further, a pressure sensor is mounted on the test piece steel plate;
the pressure sensor is characterized by also comprising an operation console, wherein the operation console is in data connection with the pressure sensor; the operation console is electrically connected with the pressure pump and used for adjusting the switch of the pressure pump according to whether the data of the pressure sensor reaches the target pressure.
Furthermore, a display is arranged on the operation console and used for displaying the pressure value of the pressure sensor.
Furthermore, a water discharge pipe is connected to the pressure test simulation cabin, and an electronic control valve is mounted on the water discharge pipe;
the electronic control valve is electrically connected with the operation console, and the electronic control valve is controlled to be switched on and off through the operation console.
Further, the pressure test simulation cabin comprises a top cover and a bottom main body;
an upper flange of the water cylinder is fixed on the outer side of the bottom edge of the top cover; a water cylinder lower flange is fixed on the outer side of the top edge of the bottom main body; the outer sides of the upper flange of the water cylinder and the lower flange of the water cylinder are locked and fixed through two symmetrically arranged locking snap rings.
Furthermore, clamping grooves corresponding to the upper flange of the water cylinder and the lower flange of the water cylinder are formed in the two locking clamping rings, and the upper flange of the water cylinder and the lower flange of the water cylinder are clamped in the clamping grooves;
the two locking snap rings are fixed through bolts.
Furthermore, sealing rubber pads are arranged on the contact surface of the upper flange of the water cylinder and the lower flange of the water cylinder, on the contact surface of the upper flange of the water cylinder and the locking snap ring, and on the contact surface of the lower flange of the water cylinder and the locking snap ring.
Further, an adapter is fixed at the top end of the inner part of the top cover;
the adapter is connected with a plurality of suspension cables through a plurality of cable lifting lugs, and the bottom of each suspension cable is also connected with the top surface of the test piece steel plate through a cable lifting lug.
Further, a sealed penetration piece is installed at the top position of the adaptor;
the data connecting wires of the plurality of micro binocular cameras and the data connecting wires of the pressure sensors are wrapped inside the cables; the cable penetrates through the sealed cabin penetrating piece;
the sealed cabin penetrating piece is of a cylindrical structure, and the outer part of the sealed cabin penetrating piece is fixedly connected with the adapter in a welding mode; a through hole for the cable to pass through is formed in the sealed cabin penetrating piece, and a plurality of sealing rings inclined downwards are arranged in the through hole.
According to another aspect of the present invention, a deformation detection test method for simulating a cavity rubber material in a deep water high pressure environment is provided, which comprises the following steps:
s100: according to the position of a cavity rubber test piece to be detected, a through hole is formed in a test piece steel plate, and computer vision equipment, a sensor, an operation console and an external terminal inside and outside a pressure test simulation cabin are debugged;
s200: the method comprises the following steps of realizing fixed connection and sealing of a pressure test simulation cabin, controlling an injection mechanism to inject water into the pressure test simulation cabin, monitoring the pressure in the cabin in real time until the pressure reaches a tested pressure value, and establishing a deepwater high-pressure simulation test environment of the cavity rubber test piece;
s300: and accurately controlling computer vision equipment to acquire deformation images inside the cavity rubber test piece in real time and transmit the deformation images to an external terminal, and analyzing the deformation characteristics of the cavity rubber test piece in the deep water high-pressure environment in real time by the external terminal.
The invention has at least the following beneficial effects:
1. according to the invention, through the arrangement of the test piece steel plate and the cavity rubber test piece hung in the pressure test simulation cabin, a high-pressure state is provided for the interior of the pressure test simulation cabin through the pressure pump, the real environment of the cavity rubber test piece in a deep water high-pressure environment can be simulated, the deformation condition of the interior of the cavity rubber test piece is collected through the miniature binocular camera, the deformation image of the interior cavity containing the cavity rubber material in the deep water high-pressure environment can be effectively obtained, and reliable data support is provided for researching the relevant deformation problem.
2. Through the design of various sealing structures, the stability in use can be ensured, and data distortion and potential safety hazards caused by water leakage under a high-pressure state are prevented; meanwhile, the pressure test simulation cabin is convenient to assemble and disassemble and parts are convenient to replace by designing the disassembly structure of the pressure test simulation cabin.
3. According to the system, the test piece steel plate is installed through the matching of the cable lifting lug and the suspension cable, the test piece steel plate can be replaced more conveniently, different cavity rubber test pieces can be replaced more conveniently, the test piece steel plate and the cavity rubber test pieces are placed in the pressure test simulation cabin through the suspension mode, and the influence of other factors on the test can be avoided to the greatest extent.
4. According to the system, the sealed cabin penetrating piece is of a cylindrical structure, and the outer part of the sealed cabin penetrating piece is fixedly connected with the adapter in a welding mode; a through hole for the cable to pass through is formed in the sealed cabin penetrating piece, and a plurality of sealing rings inclined downwards are arranged in the through hole. When using, when water pressure increase, during upwards extrusion, the sealing washer of slope downward sloping can extrude the cable under the effect of pressure, realizes inseparabler sealed effect.
5. According to the method, the injection mechanism is controlled to inject water into the pressure test simulation cabin and monitor the pressure in the cabin in real time until the pressure reaches a tested pressure value, a deepwater high-pressure simulation test environment of the cavity rubber test piece is established, the computer vision equipment is accurately controlled to acquire deformation images in the cavity rubber test piece in real time and transmit the deformation images to the external terminal, and the external terminal analyzes the deformation characteristics of the cavity rubber test piece in the deepwater high-pressure environment in real time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a sound absorbing material in a deep water state according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a deformation detection system for simulating a cavity rubber material in a deepwater high-pressure environment according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a pressure test simulation cabin in an embodiment of the invention;
FIG. 4 is a schematic view of the interior of a pressure test simulation chamber in an embodiment of the present invention;
FIG. 5 is a schematic view of a sealed bulkhead of an embodiment of the invention;
FIG. 6 is a schematic flow chart of a deformation detection test method for simulating a cavity rubber material in a deepwater high-pressure environment according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a debugging and installing process of a cavity rubber material deformation detection test system under a simulated deep water high-pressure environment according to an embodiment of the present invention.
In the drawings, like reference numerals identify like structural elements: wherein, 1, a water injection pipe; 2. operating a console; 3. a pressure pump; 4. a display; 7. a pressure test simulation cabin; 8. an upper flange of the water cylinder; 9. a water cylinder lower flange; 10. locking the snap ring; 11. an adapter; 12. suspending a cable; 13. a cable lifting lug; 14. a cavity rubber test piece; 15. a test piece steel plate; 16. an adhesive; 18. a cavity; 19. a micro binocular camera; 20. a cable; 21. sealing the cabin penetrating piece; 22. connecting the terminal externally; 24. a pressure sensor; 25. a drain pipe; 26. an electronic control valve; 71. a top cover; 72. a bottom body; 201. and (5) sealing rings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
referring to fig. 2, the invention is a deformation detection system for simulating a cavity rubber material in a deep water high pressure environment, comprising: the pressure test simulation cabin 7 is characterized in that one side of the pressure test simulation cabin 7 is connected with a water injection pipe 1; the water injection pipe 1 is connected with a water supply end through a booster pump 3 and is used for injecting water in the water supply end into the pressure test simulation cabin 7 through the booster pump 3. It should be noted that the water supply end may be a separately installed water storage tank, or may be directly externally connected to a municipal water supply system, which is not specifically limited in this application and is within the protection scope of the present invention.
A test piece steel plate 15 is arranged in the pressure test simulation cabin 7, a cavity rubber test piece 14 is bonded to the top of the test piece steel plate 15 through an adhesive 16, and a plurality of cavities 18 are formed in the cavity rubber test piece 14; the purpose of the present invention is to learn the deformation of the cavity 18 inside the cavity rubber test piece 14 under different water pressures. Injecting water into the pressure test simulation cabin 7 through the booster pump 3 to realize the simulation of a high-pressure environment; the cavity rubber test piece 14 is directly pasted on the test piece steel plate 15 through the adhesive 16, and the real use scene of the cavity rubber test piece 14 can be simulated.
And a plurality of through holes corresponding to the positions of the cavities 18 are formed in the test piece steel plate 15. A miniature binocular camera 19 is installed above the through hole, and the miniature binocular camera 19 is guaranteed to be located inside the cavity 18. Therefore, the deformation of the cavity 18 inside the cavity rubber test piece 14 under the action of water pressure can be shot through the micro binocular camera 19, and image information is provided for subsequent data analysis and model reconstruction.
Meanwhile, a pressure sensor 24 is also installed on the test piece steel plate 15 and used for acquiring real-time pressure at the position of the cavity rubber test piece 14;
the invention also comprises an operation console 2, wherein the operation console 2 is in data connection with the pressure sensor 24, and displays the pressure data measured by the pressure sensor 24 in real time through a display 4 of the operation console 2; the operation console 2 is electrically connected with the pressure pump 3 and used for controlling the on and off of the pressure pump 3. It should be noted that the circuit for controlling the activation and deactivation of the booster pump 3 is well established in the prior art, and the design of the present invention only requires the selection of any one of the existing control circuits. It should be noted that the display of pressure data on the pressure sensor 24 via the display 4 is also well established in the art and is an option in the present application.
The pressure test simulation cabin 7 is further connected with a drain pipe 25, the drain pipe 25 is provided with an electronic control valve 26, the electronic control valve 26 is also electrically connected with the operation console 2, the electronic control valve 26 is controlled to be opened and closed through the operation console 2, the control circuit is applied to each electronic control valve 26 in the mature prior art, and the invention is not repeated.
The miniature binocular camera 19 is connected with an external terminal 22 through a data connecting line, and is used for acquiring a deformation image inside the cavity 18 shot by the miniature binocular camera 19, and in the embodiment, the external terminal 22 can be selected as computer equipment.
Example 2:
referring to fig. 3, the present embodiment further discloses the structure of the pressure test simulation chamber 7 on the basis of embodiment 1. In order to realize the opening and closing functions of the pressure test simulation cabin 7, the pressure test simulation cabin is convenient to assemble and replace parts in the later period. The pressure test simulation cabin 7 is formed by covering a top cover 71 and a bottom main body 72; the outer side of the bottom edge of the top cover 71 is fixedly provided with a water cylinder upper flange 8; a water cylinder lower flange 9 is fixed on the outer side of the top edge of the bottom main body 72; the outer sides of the water barrel upper flange 8 and the water barrel lower flange 9 are locked and fixed through two symmetrically arranged locking snap rings 10; clamping grooves corresponding to the upper water barrel flange 8 and the lower water barrel flange 9 are formed in the two locking clamping rings 10, and the upper water barrel flange 8 and the lower water barrel flange 9 are clamped in the clamping grooves; the two locking snap rings 10 are fixed by bolts. Meanwhile, in order to ensure the sealing performance of the water cylinder, sealing rubber gaskets are arranged on the contact surfaces of the upper water cylinder flange 8 and the lower water cylinder flange 9, the contact surfaces of the upper water cylinder flange 8 and the locking snap ring 10 and the contact surfaces of the lower water cylinder flange 9 and the locking snap ring 10. Through the setting of this embodiment, can be comparatively convenient open and assemble pressure test simulation cabin 7 to guarantee its leakproofness.
Example 3:
this embodiment is to disclose a specific mounting manner of the test piece steel plate 15 in the art of embodiment 2. Referring to fig. 4, the adaptor 11 is fixed to the inner top end of the top cover 71; the adaptor 11 is connected to a plurality of suspension cables 12 by a plurality of cable lugs 13, and the bottom of each suspension cable 12 is also connected to the top surface of the test piece steel plate 15 by a cable lug 13. In this embodiment, the test piece steel plate 15 is installed by matching the cable lifting lug 13 with the suspension cable 12, so that the test piece steel plate 15 can be replaced more conveniently, and different cavity rubber test pieces 14 can be replaced more conveniently. Meanwhile, the test piece steel plate 15 and the cavity rubber test piece 14 are arranged in the pressure test simulation cabin 7 in a hanging mode, so that the influence of other factors on the test can be avoided to the greatest extent.
Example 4:
this embodiment further discloses the sealing problem of how to connect the data lines and the electric wires from the inside of the pressure test simulation chamber 7 to the external device on the basis of embodiment 3.
Referring to fig. 5, a sealed bulkhead 21 is mounted at the top of the adapter 11. The data connecting wires of the plurality of micro binocular cameras 19 and the data connecting wires of the pressure sensors 24 are wrapped inside the cables 20; the cable 20 passes through the sealed bulkhead 21. Referring specifically to fig. 5, the sealing member 21 is a cylindrical structure, and the outer portion thereof is fixedly connected to the adaptor 11 by welding; a through hole for the cable 20 to pass through is formed in the sealed cabin penetrating member 21, and a plurality of obliquely downward inclined seal rings 201 are formed in the through hole. When the sealing device is used, when the water pressure is increased and the sealing ring 201 obliquely inclined downwards extrudes upwards, the sealing ring is extruded to the cable 20 under the action of the pressure, and a tighter sealing effect is realized.
Therefore, the sealing rings 201 inclined downwards in the inclined direction are matched with each other for sealing, and the sealing problem can be realized.
Therefore, referring to fig. 6, an embodiment of the present invention provides a detection method for simulating a deformation detection test method of a cavity rubber material in a deep water high-pressure environment, including the following steps:
s100: according to the position of a cavity rubber test piece to be detected, a through hole is formed in a test piece steel plate, and computer vision equipment, a sensor, an operation console and an external terminal inside and outside a pressure test simulation cabin are debugged;
s200: the method comprises the following steps of realizing fixed connection and sealing of a pressure test simulation cabin, controlling an injection mechanism to inject water into the pressure test simulation cabin, monitoring the pressure in the cabin in real time until the pressure reaches a tested pressure value, and establishing a deepwater high-pressure simulation test environment of the cavity rubber test piece;
s300: and accurately controlling computer vision equipment to acquire deformation images inside the cavity rubber test piece in real time and transmit the deformation images to an external terminal, and analyzing the deformation characteristics of the cavity rubber test piece in the deep water high-pressure environment in real time by the external terminal.
As shown in fig. 7, in the embodiment of the present invention, the installation and debugging of the test system includes the following steps:
s101: according to the position of a cavity 18 of a cavity rubber test piece 14 to be detected, a through hole is formed in a test piece steel plate 15, and a micro binocular camera 19 is installed above the through hole;
s102: bonding a cavity rubber test piece 14 on the top of a test piece steel plate 15 through an adhesive 16, and mounting a pressure sensor 24 on the top of the test piece steel plate 15;
s103: suspending a test piece steel plate 15 and a plurality of suspension cables 12 at the bottom of the adaptor 11 through a plurality of cable lifting lugs 13;
s104: the data line of the micro binocular camera 19 and the pressure sensor 24 are wrapped inside the cable 20, penetrate out of the sealed cabin penetrating piece 21 and are respectively connected with the external terminal 22 and the operation console 2.
In addition, the pressure test simulation cabin is fixedly connected and sealed and comprises: the top cover 71 is placed above the bottom main body 72 to ensure that the upper water barrel flange 8 is aligned with the lower water barrel flange 9 and then is fastened through the locking snap ring 10;
accurately controlling computer vision equipment to acquire a deformation image inside the cavity rubber test piece in real time and transmit the deformation image to an external terminal, wherein the method comprises the steps of controlling a pressurizing pump 3 to start through an operation console 2, injecting water into a pressure test simulation cabin 7, observing pressure data on the operation console 2 at the same time until the pressure value to be tested is reached, and closing the pressurizing pump 3; meanwhile, a deformation image inside the cavity 18 of the cavity rubber test piece 14 is collected through the miniature binocular camera 19 and transmitted to the external terminal 22; after the collection of the deformation image in the cavity 18 is finished, the electronic control valve 26 is controlled to be started through the operation console 2, and water in the pressure test simulation cabin 7 is discharged.
According to the method and the system, particularly, through the arrangement of the test piece steel plate and the cavity rubber test piece hung in the pressure test simulation cabin, a high-pressure state is provided for the interior of the pressure test simulation cabin through the pressure pump, the real environment of the cavity rubber test piece in the deep-water high-pressure environment can be simulated, the deformation condition of the interior of the cavity rubber test piece is collected through the miniature binocular camera, the deformation image of the interior cavity containing the cavity rubber material in the deep-water high-pressure environment can be effectively obtained, and reliable data support is provided for researching relevant deformation problems.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The deformation detection system for simulating the cavity rubber material in the deepwater high-pressure environment comprises a cavity rubber test piece (14) and is characterized by further comprising a pressure test simulation cabin (7), wherein a plurality of cavities (18) are formed in the cavity rubber test piece;
one side of the pressure test simulation cabin (7) is connected with a water injection pipe (1), the water injection pipe (1) is connected with a water supply end through a pressure pump (3), a control injection mechanism injects water into the pressure test simulation cabin and monitors the pressure in the cabin in real time until the pressure reaches a tested pressure value, and a deepwater high-pressure simulation test environment of the cavity rubber test piece is established;
a test piece steel plate (15) is arranged inside the pressure test simulation cabin (7), and the top of the test piece steel plate (15) is bonded with the cavity rubber test piece (14) through a bonding agent (16);
a plurality of through holes corresponding to the cavities (18) are formed in the test piece steel plate (15);
a miniature binocular camera (19) is mounted above the through hole, and the miniature binocular camera (19) is located in the cavity (18);
miniature binocular camera (19) carry out data connection, accurate control through a data connecting line and external terminal (22) miniature binocular camera (19) adopt the inside deformation image of cavity rubber test piece in real time and transmit for external terminal (22), external terminal (22) real-time analysis the deformation characteristic of cavity rubber test piece under deep water high pressure environment.
2. The deformation detection system for simulating the cavity rubber material in the deep water high-pressure environment according to claim 1, wherein a pressure sensor (24) is mounted on the test piece steel plate (15);
the device also comprises an operation console (2), wherein the operation console (2) is in data connection with the pressure sensor (24); the operation console (2) is electrically connected with the pressure pump (3) and used for adjusting the switch of the pressure pump (3) according to whether the data of the pressure sensor (24) reaches the target pressure.
3. The deformation detection system for simulating the cavity rubber material in the deep water high-pressure environment as claimed in claim 2, wherein a display (4) is further arranged on the operation console (2) and used for displaying the pressure value of the pressure sensor (24).
4. The deformation detection system for simulating the cavity rubber material in the deep water high-pressure environment according to claim 2, wherein a drain pipe (25) is further connected to the pressure test simulation cabin (7), and an electronic control valve (26) is mounted on the drain pipe (25);
the electronic control valve (26) is electrically connected with the operation console (2), and the electronic control valve (26) is controlled to be opened and closed through the operation console (2).
5. The deformation detection system for simulating cavity rubber materials in deep water high-pressure environment according to any one of claims 1-4, characterized in that the pressure test simulation chamber (7) comprises a top cover (71) and a bottom main body (72);
an upper flange (8) of the water cylinder is fixed on the outer side of the bottom edge of the top cover (71); a water cylinder lower flange (9) is fixed on the outer side of the top edge of the bottom main body (72); the outer sides of the upper water barrel flange (8) and the lower water barrel flange (9) are locked and fixed through two symmetrically arranged locking snap rings (10).
6. The deformation detection system for simulating the cavity rubber material in the deep water high-pressure environment according to claim 5, wherein clamping grooves corresponding to the water barrel upper flange (8) and the water barrel lower flange (9) are formed in the two locking clamping rings (10), and the water barrel upper flange (8) and the water barrel lower flange (9) are clamped in the clamping grooves;
the two locking snap rings (10) are fixed through bolts.
7. The deformation detection system for simulating cavity rubber materials in deep water and high pressure environment according to claim 6, wherein sealing rubber gaskets are arranged on the contact surfaces of the water barrel upper flange (8) and the water barrel lower flange (9), the contact surfaces of the water barrel upper flange (8) and the locking snap ring (10), and the contact surfaces of the water barrel lower flange (9) and the locking snap ring (10).
8. The deformation detection system for cavity rubber materials in the simulated deep water high pressure environment as claimed in claim 7, wherein an adapter (11) is fixed at the top end of the inner part of the top cover (71);
the adaptor (11) is connected with a plurality of suspension cables (12) through a plurality of cable lifting lugs (13), and the bottom of each suspension cable (12) is also connected with the top surface of the test piece steel plate (15) through the cable lifting lug (13).
9. The deformation detection system for cavity rubber materials in simulated deep water high pressure environment as claimed in claim 8, characterized in that a sealed penetration piece (21) is installed at the top position of the adaptor (11);
the data connecting wires of the plurality of micro binocular cameras (19) and the data connecting wires of the pressure sensors (24) are wrapped inside the cables (20); the cable (20) penetrates through the sealed cabin penetrating piece (21);
the sealed cabin penetrating piece (21) is of a cylindrical structure, and the outer part of the sealed cabin penetrating piece is fixedly connected with the adaptor (11) in a welding mode; a through hole for the cable (20) to pass through is formed in the sealed cabin penetrating piece (21), and a plurality of sealing rings (201) inclined downwards are arranged in the through hole.
10. The deformation detection method for simulating the cavity rubber material in the deep water high-pressure environment is realized by applying the deformation detection system for simulating the cavity rubber material in the deep water high-pressure environment according to any one of claims 1 to 9, and comprises the following steps:
s100: according to the position of a cavity rubber test piece to be detected, a through hole is formed in a test piece steel plate, and computer vision equipment, a sensor, an operation console and an external terminal inside and outside a pressure test simulation cabin are debugged;
s200: the method comprises the following steps of realizing fixed connection and sealing of a pressure test simulation cabin, controlling an injection mechanism to inject water into the pressure test simulation cabin, monitoring the pressure in the cabin in real time until the pressure reaches a tested pressure value, and establishing a deepwater high-pressure simulation test environment of the cavity rubber test piece;
s300: and accurately controlling computer vision equipment to acquire deformation images inside the cavity rubber test piece in real time and transmit the deformation images to an external terminal, and analyzing the deformation characteristics of the cavity rubber test piece in the deep water high-pressure environment in real time by the external terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211395534.XA CN115436183B (en) | 2022-11-09 | 2022-11-09 | Deformation detection system and method for cavity rubber material under simulated deepwater high-pressure environment |
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| CN202211395534.XA CN115436183B (en) | 2022-11-09 | 2022-11-09 | Deformation detection system and method for cavity rubber material under simulated deepwater high-pressure environment |
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| CN115436183A CN115436183A (en) | 2022-12-06 |
| CN115436183B true CN115436183B (en) | 2023-03-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1605452A (en) * | 1973-12-07 | 2007-08-01 | Secr Defence | Acoustic wave absorbing device |
| US6988057B2 (en) * | 2003-10-31 | 2006-01-17 | The Hong Kong Polytechnic University | Methods for designing a chamber to reduce noise in a duct |
| CN104005947B (en) * | 2014-04-13 | 2016-08-17 | 北京工业大学 | The performance testing device of seawater hydraulic pump and method under the high back pressure environment of deep-sea |
| CN204703324U (en) * | 2015-06-26 | 2015-10-14 | 哈尔滨城林科技股份有限公司 | Plastics wedge absorber |
| JP6777759B2 (en) * | 2016-04-06 | 2020-10-28 | ダブリュ．エル．ゴア アンド アソシエイツ，インコーポレイティドＷ．Ｌ． Ｇｏｒｅ ＆ Ａｓｓｏｃｉａｔｅｓ， Ｉｎｃｏｒｐｏｒａｔｅｄ | Pressure equilibrium structure for non-porous acoustic membranes |
| GB2587492B (en) * | 2017-10-05 | 2022-02-16 | Nexcem Inc | Sound absorption panel |
| CN109836773B (en) * | 2017-11-27 | 2020-08-18 | 海洋化工研究院有限公司 | Underwater acoustic composite material and manufacturing method thereof |
| CN110288969B (en) * | 2019-06-20 | 2022-04-22 | 西安交通大学 | Straight column type lattice reinforced cavity type underwater sound absorption structure |
| CN111795661B (en) * | 2020-06-29 | 2022-01-28 | 中国科学院声学研究所 | Method and system for detecting three-dimensional geometric morphology of underwater acoustic material |
| CN113007483B (en) * | 2021-02-08 | 2021-11-26 | 哈尔滨工程大学 | Water source device of acoustic test water pipeline |
| CN113740830B (en) * | 2021-09-03 | 2024-02-27 | 浙江东溟科技有限公司 | Underwater double-layer sound absorption plate and underwater sound receiving and transmitting noise reduction structure |
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