CN112304544A - Deep sea structure vibration testing method based on underwater high-speed camera - Google Patents
Deep sea structure vibration testing method based on underwater high-speed camera Download PDFInfo
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- CN112304544A CN112304544A CN202011123999.0A CN202011123999A CN112304544A CN 112304544 A CN112304544 A CN 112304544A CN 202011123999 A CN202011123999 A CN 202011123999A CN 112304544 A CN112304544 A CN 112304544A
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- 238000012360 testing method Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000017525 heat dissipation Effects 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 5
- 230000001502 supplementing effect Effects 0.000 claims abstract description 4
- 230000010354 integration Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims abstract 7
- 239000013589 supplement Substances 0.000 claims description 10
- 239000002775 capsule Substances 0.000 claims description 8
- 229910052594 sapphire Inorganic materials 0.000 claims description 7
- 239000010980 sapphire Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000002274 desiccant Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000010998 test method Methods 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
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- Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Studio Devices (AREA)
- Structure And Mechanism Of Cameras (AREA)
Abstract
The invention discloses a deep sea structure vibration testing method based on an underwater high-speed camera, and relates to the technical field of underwater imaging and structure dynamics testing. The method comprises the following steps of installing a deep water sealed cabin main body of a high-speed camera, installing a heat dissipation supporting seat, installing a light supplementing system integration base and detecting the internal abnormity of the sealed cabin, wherein the installation of the deep water sealed cabin main body of the high-speed camera comprises the following steps: the deep water sealed cabin main part includes: the rubber ring groove area needs to be cleaned when the front cabin assembly and the rear cabin assembly are installed, and foreign matters such as particles cannot exist. The invention aims at the deep water sealed cabin structure of the high-speed camera, leads the heat dissipation problem of the high-speed camera to the sealed cabin section through the heat dissipation seat structure and the heat dissipation fins, and realizes the cooling during the working of the high-speed camera. And the temperature, the humidity and the air pressure in the sealed cabin are monitored, so that the high-speed camera can carry out vibration test on the underwater structure for a long time.
Description
Technical Field
The invention belongs to the technical field of underwater imaging and structural dynamics testing, and particularly relates to a deep sea structure vibration testing method based on an underwater high-speed camera.
Background
With the increasing demand of deep sea weaponry, the working mode test of the structural members of the key parts such as underwater weaponry is urgently needed. The existing vibration testing device still adopts contact type measuring tools such as an acceleration sensor, and the like, so that the experimental measurement difficulty is high for the complex situation of the influence of the mutual coupling action of a structure and fluid in an underwater structure test, and the key parts are not easy to install. And when the high-speed camera is used for underwater vibration measurement, the high-speed camera has high dependence on a light source, needs a normally bright and flicker-free high-power light source, has requirements on the field angle and the luminous flux of illumination, and also needs to monitor parameters such as the temperature, the humidity and the pressure of the underwater work of the camera in real time due to high cost of the high-speed camera.
Disclosure of Invention
The invention aims to provide a deep sea structure vibration testing method based on an underwater high-speed camera, which solves the existing problems that: the existing underwater camera is mostly based on the imaging requirement of a common camera, and the problems of heat dissipation, high-speed transmission, synchronous triggering with an external excitation signal and the like of a camera shell do not need to be considered due to the low acquisition frame rate of the camera. And when the high-speed camera is used for underwater vibration measurement, the high-speed camera has high dependence on a light source, needs a normally bright and flicker-free high-power light source, has requirements on the field angle and the luminous flux of illumination, and also needs to monitor parameters such as the temperature, the humidity and the pressure of the underwater work of the camera in real time due to high cost of the high-speed camera.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a deep sea structure vibration testing method based on an underwater high-speed camera, which comprises the steps of installing a deep water sealed cabin main body of the high-speed camera, installing a heat dissipation supporting seat, installing a light supplementing system integrated base and detecting the internal abnormity of the sealed cabin, wherein the installation of the deep water sealed cabin main body of the high-speed camera comprises the following steps:
(S1) the deep water sealed cabin main body includes: a sealed cabin section, a front cabin and a rear cabin;
(S2) cleaning the rubber ring groove area when the front cabin assembly and the rear cabin assembly are installed, and avoiding foreign matters such as particles;
(S3) coating a proper amount of lubricating silicone grease on the surface of the rubber ring when the front cabin and the rear cabin are installed;
(S4) the sealed cabin section is connected with the front cabin and the rear cabin through threaded holes and a sealing rubber ring;
(S5) mounting a sapphire lens in the front hatch structure;
(S6) installing a watertight cable in the rear deck structure.
Further, the installation of the heat dissipation supporting seat comprises the following steps:
(S1) fixing the support disk and the support column to the outer surface of the camera;
(S2) fixedly mounting a fan-shaped heat sink on an outer surface of the camera mount;
(S3) the heat sink fan is tightly connected to the inner casing of the capsule compartment section through heat-dissipating silica gel.
Further, the installation of the light supplement system integrated base comprises the following steps:
(S1) placing two normally-on light supplement lamps on two sides of the front end of the deep water camera sealed cabin base;
(S2) fixing the cable locking notch at the rear end of the capsule base;
(S3) the watertight cable is fixed by the cable locking notch.
Further, the detection of the abnormality inside the sealed cabin comprises the following steps:
(S1) the temperature and humidity sensor and the barometer module are transmitted to an external display through a watertight cable;
(S2) when the numerical value is abnormal, the alarm works, and meanwhile, the interruption protection function is realized by controlling a power line loop of the high-speed camera;
(S3) placing a specialized desiccant within the capsule compartment.
The invention has the following beneficial effects:
1. the invention designs a deepwater sealed cabin structure for a high-speed camera, which leads the heat dissipation problem of the high-speed camera to a sealed cabin section through a heat dissipation seat structure and a heat dissipation sheet, and realizes the cooling during the working of the high-speed camera. And the temperature, the humidity and the air pressure in the sealed cabin are monitored, so that the high-speed camera can carry out vibration test on the underwater structure for a long time.
2. The invention designs a light supplement system of a deep water high-speed camera, combines the field angle of the camera, and simultaneously seals a cabin and double light supplement lamps through an integrated base. The observation requirement of the maximum 105-degree field angle is met by adjusting the two-degree-of-freedom connecting seat of the light supplement lamp.
3. The invention realizes the real-time control of the external trigger signal of the underwater high-speed camera through the deepwater sealed cabin and the watertight cable. The external excitation device and the high-speed camera can be synchronously acquired, the non-contact underwater structure vibration measuring device based on the high-speed camera is provided, and a reliable data source is also provided for subsequent vibration response analysis.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a sealed forecabin structure according to the present invention;
fig. 3 is an enlarged view of the invention at a in fig. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a camera mount; 2. a desiccant; 3. sealing the rubber ring; 4. a temperature and humidity sensor; 5. a high-speed camera; 6. a heat sink; 7. a sapphire lens; 8. sealing the cabin section; 9. a bolt; 10. a watertight cable; 11. and (4) a support column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention is a deep sea structure vibration testing method based on an underwater high-speed camera, including a deep water sealed cabin main body installation of the high-speed camera, a heat dissipation support seat installation, a light supplement system integration base installation and an internal anomaly detection of the sealed cabin, the deep water sealed cabin main body installation of the high-speed camera includes the following steps:
(S1) the deep water sealed cabin main body includes: a sealed cabin section 8, a front cabin and a rear cabin;
(S2) cleaning the rubber ring groove area when the front cabin assembly and the rear cabin assembly are installed, and avoiding foreign matters such as particles;
(S3) coating a proper amount of lubricating silicone grease on the surface of the sealing rubber ring 3 when the front and rear cabins are installed;
(S4) connecting the sealed cabin section 8 with the front cabin and the rear cabin through bolts 9 and a sealing rubber ring 3;
(S5) mounting a sapphire lens 7 in the front cabin structure, the sapphire lens 7 ensuring high light transmittance and high pressure resistance of the high-speed camera 5;
(S6) installing the watertight cable 10 in the rear deck structure, the watertight cable 10 ensuring the normal operation of the high-speed camera 5 and the internal abnormality detection sensor.
The installation of the heat dissipation supporting seat comprises the following steps:
(S1) fixing the support disc and the support post 11 on the outer surface of the high-speed camera 5, the support disc and the support post 11 ensuring the stability of the high-speed camera 5 inside the capsule section 8.
(S2) fixedly mounting the fan-shaped heat sink 12 on the outer surface of the camera mount 1;
(S3) the fan-shaped radiator 12 is closely connected with the inner shell of the sealed cabin section 8 through radiating silica gel, so that the heat conduction efficiency of the high-speed camera 5 during working is increased, and the radiating purpose during deep water measurement is achieved.
The installation of the integrated base of the light supplementing system comprises the following steps:
(S1) placing two normally-on light supplement lamps on two sides of the front end of the deep water camera sealed cabin base, wherein the light supplement lamps can realize the angle adjustment of two degrees of freedom through the connecting base;
(S2) fixing the cable locking notch at the rear end of the capsule base;
(S3) the watertight cable 10 is fixed by the cable locking notch.
The detection of the abnormality in the interior of the sealed cabin comprises the following steps:
(S1) the temperature and humidity sensor 4 and the barometer module are transmitted to an external display through the watertight cable 10, so that the temperature and humidity values in the sealed cabin can be monitored in real time;
(S2) when the numerical value is abnormal, the alarm works, and meanwhile, the interruption protection function is realized by controlling a power line loop of the high-speed camera 5;
(S3) placing a special desiccant 2 in the capsule segment 8, wherein the special desiccant 2 can ensure that the surface of the sapphire lens 7 is not fogged by water vapor.
One specific application of this embodiment is: when a front cabin assembly and a rear cabin assembly need to be cleaned, a rubber ring groove area is not required to be cleaned, foreign matters such as particles and the like are not required, when the front cabin and the rear cabin are installed, a proper amount of lubricating silicone grease is required to be smeared on the surface of the rubber ring, a sealed cabin section 8 is connected with the front cabin and the rear cabin through bolts 9 and a sealed rubber ring 3, a sapphire lens 7 is installed in a front cabin structure, a watertight cable 10 is installed in a rear cabin structure, a supporting disc and a supporting column 11 are fixed on the outer surface of a high-speed camera 5, a fan-shaped radiator 12 is fixedly installed on the outer surface of a camera installation seat 1, the fan-shaped radiator 12 is tightly connected with an inner shell of the sealed cabin section 8 through heat-dissipating silicone, then two normally-lighted lamps are placed on two sides of the front end of a deepwater camera sealed cabin base, a cable locking opening is fixed at the rear end of the sealed cabin base, the watertight cable, when the value is abnormal, the alarm works, meanwhile, the interruption protection function is realized by controlling a power line loop of the high-speed camera 5, and the special drying agent 2 is placed in the sealed cabin section 8.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. A deep sea structure vibration test method based on an underwater high-speed camera comprises the steps of installing a deep sea sealed cabin main body of the high-speed camera, installing a heat dissipation supporting seat, installing a light supplement system integration base and detecting the internal abnormity of the sealed cabin, and is characterized in that: the installation of the deep water sealed cabin main body of the high-speed camera comprises the following steps:
(S1) the deep water sealed cabin main body includes: a sealed cabin section (8), a front cabin and a rear cabin;
(S2) cleaning the rubber ring groove area when the front cabin assembly and the rear cabin assembly are installed, and avoiding foreign matters such as particles;
(S3) coating a proper amount of lubricating silicone grease on the surface of the sealing rubber ring (3) when the front cabin and the rear cabin are installed;
(S4) the sealed cabin section (8) is connected with the front cabin and the rear cabin through bolts (9) and a sealing rubber ring (3);
(S5) mounting a sapphire lens (7) in the front hatch structure;
(S6) installing a watertight cable (10) in the rear deck structure.
2. The method for testing the vibration of the deep sea structure based on the underwater high-speed camera according to claim 1, wherein the method comprises the following steps: the installation of the heat dissipation supporting seat comprises the following steps:
(S1) fixing the support disk and the support column (11) to the outer surface of the high-speed camera (5);
(S2) fixedly mounting the fan-shaped heat sink (12) on the outer surface of the camera mounting base (1);
(S3) the fan-shaped radiator (12) is tightly connected with the inner shell of the sealed cabin section (8) through radiating silica gel.
3. The method for testing the vibration of the deep sea structure based on the underwater high-speed camera according to claim 1, wherein the method comprises the following steps: the installation of the integrated base of the light supplementing system comprises the following steps:
(S1) placing two normally-on light supplement lamps on two sides of the front end of the deep water camera sealed cabin base;
(S2) fixing the cable locking notch at the rear end of the capsule base;
(S3) the watertight cable (10) is fixed by a cable locking notch.
4. The method for testing the vibration of the deep sea structure based on the underwater high-speed camera according to claim 1, wherein the method comprises the following steps: the detection of the abnormality in the interior of the sealed cabin comprises the following steps:
(S1) the temperature and humidity sensor (4) and the barometer module are transmitted to an external display through a watertight cable (10);
(S2) when the numerical value is abnormal, the alarm works, and meanwhile, the interruption protection function is realized by controlling a power line loop of the high-speed camera (5);
(S3) placing a specialized desiccant (2) within the capsule compartment (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123999.0A CN112304544A (en) | 2020-10-20 | 2020-10-20 | Deep sea structure vibration testing method based on underwater high-speed camera |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011123999.0A CN112304544A (en) | 2020-10-20 | 2020-10-20 | Deep sea structure vibration testing method based on underwater high-speed camera |
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| CN112304544A true CN112304544A (en) | 2021-02-02 |
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| CN202011123999.0A Pending CN112304544A (en) | 2020-10-20 | 2020-10-20 | Deep sea structure vibration testing method based on underwater high-speed camera |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112629793A (en) * | 2021-03-10 | 2021-04-09 | 苏州东菱振动试验仪器有限公司 | Underwater vibration table with built-in cooling system |
| CN114323561A (en) * | 2021-12-30 | 2022-04-12 | 中国特种飞行器研究所 | Watertight hull test model device with high gravity inertia degree and high degree of freedom adjustment |
| CN115235701A (en) * | 2022-06-13 | 2022-10-25 | 中国科学院西安光学精密机械研究所 | Imaging device for underwater severe working condition and environmental adaptability verification method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629793A (en) * | 2021-03-10 | 2021-04-09 | 苏州东菱振动试验仪器有限公司 | Underwater vibration table with built-in cooling system |
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| CN114323561A (en) * | 2021-12-30 | 2022-04-12 | 中国特种飞行器研究所 | Watertight hull test model device with high gravity inertia degree and high degree of freedom adjustment |
| CN114323561B (en) * | 2021-12-30 | 2023-10-20 | 中国特种飞行器研究所 | Watertight hull test model device with gravity center inertia and high freedom degree adjustment |
| CN115235701A (en) * | 2022-06-13 | 2022-10-25 | 中国科学院西安光学精密机械研究所 | Imaging device for underwater severe working condition and environmental adaptability verification method thereof |
| CN115235701B (en) * | 2022-06-13 | 2024-05-31 | 中国科学院西安光学精密机械研究所 | Imaging device for underwater severe working conditions and environment adaptability verification method thereof |
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Application publication date: 20210202 |