CN111983179A - Energy-gathered explosive-charging underwater explosion experimental device - Google Patents
Energy-gathered explosive-charging underwater explosion experimental device Download PDFInfo
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- CN111983179A CN111983179A CN202010858987.6A CN202010858987A CN111983179A CN 111983179 A CN111983179 A CN 111983179A CN 202010858987 A CN202010858987 A CN 202010858987A CN 111983179 A CN111983179 A CN 111983179A
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- 238000004880 explosion Methods 0.000 title claims abstract description 53
- 238000012360 testing method Methods 0.000 claims abstract description 88
- 239000002360 explosive Substances 0.000 claims abstract description 46
- 230000004044 response Effects 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims abstract description 5
- 238000005474 detonation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 9
- 238000002474 experimental method Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 description 15
- 230000035939 shock Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000003999 initiator Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/227—Explosives, e.g. combustive properties thereof
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Abstract
The invention provides an experimental device for shaped charge underwater explosion, and the method comprises the following steps: the explosive charging system comprises an energy-collecting explosive and an explosive tube, and the energy-collecting explosive is arranged at the front end of the explosive tube; the structure hoisting system comprises a mounting bracket and a test board, wherein the test board is mounted on the mounting bracket; the sensor system comprises a pressure testing system, a speed measuring target system and a structural response testing system, wherein the pressure testing system is arranged at the outer side of the charging system, the speed measuring target system comprises speed measuring target paper and a speed measuring tube, and the speed measuring target paper is arranged in the speed measuring tube and the explosion tube; the structure response test system is arranged on the test board; the image recording system is arranged outside the radiation range of the shaped charge explosion, and the invention mainly utilizes the fact that the shaped charge is arranged on the experiment frame provided with various sensors, thereby achieving the purpose of collecting relevant data in the shaped charge explosion mode at the first time.
Description
Technical Field
The invention relates to the technical field of underwater blasting, in particular to an energy-gathered charge underwater explosion experimental device.
Background
At present, the open literature about the problem of shaped charge underwater explosion is less, and the research on shaped charge aerial explosion is more at home and abroad. For air explosion, the load is single, the shock wave load attenuation is fast, the metal jet load can measure the jet velocity through the velocity measurement target paper, and the frame arrangement is simple. The experimental method of shaped charge underwater explosion can refer to air explosion, but as the overpressure of shock waves formed in the process of underwater explosion is far greater than that of the shock waves in the air, the damage form of the shock waves to the structure is different from the effect of the air explosion. In addition, long-term pulsating bubbles are formed in the underwater explosion process, and related parameters also need to be measured. Thus, the destructive elements of a structure by a shaped charge underwater explosion include primarily metal jets, shock waves and bubbles. The technology relates to related subjects such as materials science, chemistry, explosion, impact dynamics and the like, and is difficult to describe by a classical theory and an analytical method, so that the experiment is the most direct and effective means for researching shaped charge underwater explosion at present.
Therefore, a shaped charge underwater explosion experimental device needs to be designed.
Disclosure of Invention
According to the technical problem that the underwater test data of the energy-gathering explosion is lost, the energy-gathering charge underwater explosion experimental device is provided. The invention mainly utilizes the fact that the shaped charge is arranged on an experiment frame provided with various sensors, thereby achieving the purpose of collecting relevant data in the first time in the shaped charge explosive mode.
The technical means adopted by the invention are as follows:
an experimental apparatus for shaped charge underwater explosion, comprising: the explosive charging system comprises energy-collecting explosive and an explosive tube, the energy-collecting explosive is arranged at the front end of the explosive tube, and the explosive charging system is arranged on the structure hoisting system; the structure hoisting system comprises a mounting bracket and a test board, wherein the test board is mounted on the mounting bracket; the sensor system comprises a pressure testing system, a speed measuring target system and a structural response testing system, wherein the pressure testing system is arranged on the outer side of the charging system, the speed measuring target system comprises a speed measuring target paper and a speed measuring tube, the speed measuring target paper is arranged in the speed measuring tube and the explosion tube, and the speed measuring tube is arranged on the testing plate; the structural response test system is arranged on the test board; the image recording system is disposed outside the radiation range of the shaped charge detonation.
Further, the structure hoisting system is provided with a plurality of test boards according to the power of the shaped charges, and the test boards are arranged on the mounting bracket in parallel.
Furthermore, a detonator and a detonator are arranged at the front end of the shaped charge, and the rear end of the detonation tube is arranged on the upper surface of the test board on the uppermost layer of the structure hoisting system.
Further, pressure test system includes pressure sensor, data acquisition appearance and computer, pressure sensor includes pressure sensor I and pressure sensor II, pressure sensor I sets up charge system's top and with charge system is coaxial, pressure sensor II sets up charge system's horizontal one side.
Further, the target paper that tests the speed includes target paper I that tests the speed, target paper II that tests the speed, target paper III that tests the speed and target paper IV that tests the speed, test the speed target paper I with it sets up to test the speed target paper II in the explosion tube, test the speed target paper III with it sets up to test the speed target paper IV in the speed tube, the speed tube sets up structure hoist system the superiors survey the lower surface of panel and with the explosion tube is coaxial.
Further, the corresponding test system of the structure comprises strain gauges and a multi-channel strain gauge, wherein the strain gauges are arranged on the surface of each test plate.
Further, the image recording system is a high-speed camera.
Compared with the prior art, the invention has the following advantages:
1. according to the energy-gathered charge underwater explosion experimental device, through the plurality of groups of sensors and the high-speed camera, more energy-gathered charge underwater explosion information can be recorded, collected and analyzed, and an effective method can be provided for comprehensive evaluation of metal jet load, shock wave load, bubble load and structural damage.
Based on the reason, the invention can be widely popularized in the fields of underwater blasting technology and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an experimental apparatus for shaped charge underwater detonation according to the present invention.
In the figure: 1. an explosion tube; 2. shaped charge; 3. a test board; 4. mounting a bracket; 5. a speed measuring target paper I; 6. a speed measuring target paper II; 7. a speed measuring target paper III; 8. a speed measuring target paper IV; 9. a pressure sensor II; 10. a pressure sensor I; 11. an initiator; 12. a multi-channel strain gauge; 13. a high-speed camera; 14. a data acquisition instrument; 15. and (4) a detonator.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1, the present invention provides a shaped charge underwater explosion experimental apparatus, comprising: the explosive charging system comprises an energy-gathered explosive 2 and an explosive tube 1, a detonator 15 and an initiator 11 are arranged at the front end of the energy-gathered explosive 2, the energy-gathered explosive 2 is arranged at the front end of the explosive tube 1, and the explosive charging system is arranged on the structural hoisting system; the structure hoisting system comprises a mounting bracket 4 and a test board 3, the test board 3 is mounted on the mounting bracket 4, the structure hoisting system is provided with a plurality of layers of test boards 3 according to the power of the shaped charge 2, the test boards 3 are arranged on the mounting bracket 4 in parallel, and the rear end of the detonation tube 1 is mounted on the upper surface of the test board 3 at the uppermost layer of the structure hoisting system; the sensor system comprises a pressure test system, a speed measurement target system and a structural response test system, the pressure test system is arranged on the outer side of the explosive charging system, the pressure test system comprises a pressure sensor, a data acquisition instrument 14 and a computer, the pressure sensor comprises a pressure sensor I10 and a pressure sensor II 9, the pressure sensor I10 is arranged above the explosive charging system and coaxial with the explosive charging system, the pressure sensor II 9 is arranged on one horizontal side of the explosive charging system, the speed measurement target system comprises a speed measurement target paper and a speed measurement pipe, the speed measurement target paper is arranged in the speed measurement pipe and the explosion pipe 1, the speed measurement pipe is arranged on the test board 3, the speed measurement target paper comprises a speed measurement target paper I5, a speed measurement target paper II 6, a speed measurement target paper III 7 and a speed measurement target paper IV 8, the speed measurement target paper I5 and the speed measurement target paper II 6 are arranged in the explosion pipe 1, the speed measuring target paper III 7 and the speed measuring target paper IV 8 are arranged in the speed measuring pipe, and the speed measuring pipe is arranged on the lower surface of the test board 3 on the uppermost layer of the structural hoisting system and is coaxial with the explosion pipe 1; the structure corresponding test system comprises strain gauges and a multi-channel strain gauge 12, wherein the strain gauges are arranged on the surface of each test board 3; the image recording system is arranged outside the radiation range of the shaped charge 2 explosion, and is a high-speed camera 13.
Example 1
As shown in fig. 1, the present invention provides a shaped charge underwater explosion experimental apparatus, comprising: the explosive charging system comprises an energy-gathered explosive 2 and an explosive tube 1, the explosive tube 1 is a PVC sleeve, a detonator 15 and an initiator 11 are arranged at the front end of the energy-gathered explosive 2, the energy-gathered explosive 2 is arranged at the front end of the explosive tube 1 through waterproof glue, the distance between the bottom of the energy-gathered explosive 2 and the test board 3 is adjusted by changing the height of the explosive tube 1, and the explosive charging system is arranged on the structural hoisting system; the structure hoisting system comprises a mounting bracket 4 and a test board 3, the mounting bracket 4 is a steel frame, the test board 3 is a steel plate, the test board 3 is mounted on the mounting bracket 4, the structure hoisting system is provided with a plurality of layers of the test boards 3 according to the power of the shaped charge 2, the test boards 3 are arranged on the mounting bracket 4 in parallel, and the rear end of the detonation tube 1 is mounted on the upper surface of the test board 3 on the uppermost layer of the structure hoisting system; the sensor system comprises a pressure testing system, a speed measuring target system and a structural response testing system, the pressure testing system is arranged on the outer side of the explosive charging system, the pressure testing system comprises a pressure sensor, a data acquisition instrument 14 and a computer, the pressure sensor comprises a pressure sensor I10 and a pressure sensor II 9, the pressure sensor I10 is arranged above the explosive charging system and is coaxial with the explosive charging system and is at a distance of l from the length of the energy-gathered explosive charging, the pressure sensor II 9 is arranged on one horizontal side of the explosive charging system and is at a distance of l from the length of the energy-gathered explosive charging, the pressure sensor records a pressure change curve along with time, so that parameters such as overpressure peak value, bubble pulsation period and the like can be analyzed conveniently in the later period, the speed measuring target system comprises speed measuring target paper and a speed measuring pipe, the speed measuring pipe is a PVC pipe, and the speed measuring target paper is arranged in the speed measuring pipe, the speed measuring tube is arranged on the test plate 3, the speed measuring target paper comprises speed measuring target paper I5, speed measuring target paper II 6, speed measuring target paper III 7 and speed measuring target paper IV 8, the speed measuring target paper I5 and the speed measuring target paper II 6 are arranged in the explosion tube 1, the speed measuring target paper III 7 and the speed measuring target paper IV 8 are arranged in the speed measuring tube, the speed measuring tube is arranged on the lower surface of the test plate 3 at the uppermost layer of the structural hoisting system and is coaxial with the explosion tube 1, and the speed measuring target paper is used for testing the speed of metal jet flow; the structure corresponding test system comprises strain gauges and a multi-channel strain gauge 12, wherein the strain gauges are arranged on the surface of each test board 3; the image recording system is arranged outside the radiation range of the explosion of the shaped charge 2, the image recording system is a high-speed camera 13, and the high-speed camera 13 shoots all experimental processes in the experiment.
During the experiment, firstly, the height of the explosion tube 1 is selected according to the explosion height, the layer number of the test board 3 to be installed is selected according to the power of the energy-gathered charge 2, the energy-gathered charge 2 is installed at the front end of the explosion tube 1 through waterproof glue, the speed measuring target paper I5 and the speed measuring target paper II 6 are installed in the explosion tube 1, the assembled explosion tube 1 is installed at the center of the upper surface of the test board 3, the speed measuring target paper III 7 and the speed measuring target paper IV 8 are installed in the speed measuring tube, the test tube is installed at the center of the lower surface of the test board 3, the installed test board 3 is installed at the uppermost layer of the installation bracket 4, other test boards 3 are installed on the installation bracket 4, the strain gage is installed on the test board 3 after the test main body is installed, and the test main body is placed at a test point, the detonator 15 and the initiator 11 are arranged at the top end of the shaped charge 2, the strain gauge is connected to the multi-channel strain gauge 12, the pressure sensor I10 and the pressure sensor II are connected to the data acquisition instrument 14, the high-speed camera 13 is adjusted to record the whole explosion process, and after all the sensors are opened, the shaped charge 2 is detonated to record the data of all the sensors in the explosion process.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. An experimental apparatus for shaped charge underwater explosion, comprising: the explosive charging system comprises energy-collecting explosive and an explosive tube, the energy-collecting explosive is arranged at the front end of the explosive tube, and the explosive charging system is arranged on the structure hoisting system; the structure hoisting system comprises a mounting bracket and a test board, wherein the test board is mounted on the mounting bracket; the sensor system comprises a pressure testing system, a speed measuring target system and a structural response testing system, wherein the pressure testing system is arranged on the outer side of the charging system, the speed measuring target system comprises a speed measuring target paper and a speed measuring tube, the speed measuring target paper is arranged in the speed measuring tube and the explosion tube, and the speed measuring tube is arranged on the testing plate; the structural response test system is arranged on the test board; the image recording system is disposed outside the radiation range of the shaped charge detonation.
2. An experimental set of shaped charge underwater explosions, as claimed in claim 1, wherein said structural lifting system is provided with a plurality of test panels according to the force of said shaped charge, said test panels being arranged parallel to each other on said mounting bracket.
3. The shaped charge underwater explosion test device of claim 1, wherein a detonator and a detonator are provided at the front end of the shaped charge, and the rear end of the detonator is mounted on the upper surface of the test board at the uppermost layer of the structural hoisting system.
4. An experimental apparatus for shaped charge underwater explosion as claimed in claim 1, wherein the pressure testing system comprises a pressure sensor, a data acquisition instrument and a computer, the pressure sensor comprises a pressure sensor I and a pressure sensor II, the pressure sensor I is arranged above the charge system and is coaxial with the charge system, and the pressure sensor II is arranged on one horizontal side of the charge system.
5. The energy-accumulating underwater explosive loading experimental device as claimed in claim 1, wherein the speed measuring target paper comprises a speed measuring target paper I, a speed measuring target paper II, a speed measuring target paper III and a speed measuring target paper IV, the speed measuring target paper I and the speed measuring target paper II are arranged in the explosion tube, the speed measuring target paper III and the speed measuring target paper IV are arranged in the speed measuring tube, and the speed measuring tube is arranged on the lower surface of the test plate on the uppermost layer of the structural hoisting system and is coaxial with the explosion tube.
6. A shaped charge underwater explosion test device as claimed in claim 1, wherein said structurally corresponding test system includes a strain gauge and a multi-channel strain gauge, said strain gauge being provided on the surface of each of said test panels.
7. A shaped charge underwater explosion experimental apparatus as claimed in claim 1, wherein said image recording system is a high speed camera.
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| CN202010858987.6A CN111983179A (en) | 2020-08-24 | 2020-08-24 | Energy-gathered explosive-charging underwater explosion experimental device |
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| CN202010858987.6A CN111983179A (en) | 2020-08-24 | 2020-08-24 | Energy-gathered explosive-charging underwater explosion experimental device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112964850A (en) * | 2021-02-04 | 2021-06-15 | 中国船舶科学研究中心 | Observation device and test method for expanding evolution of underwater detonation product into cabin |
| CN114935287A (en) * | 2022-04-06 | 2022-08-23 | 北京理工大学 | Active jet chemical energy distribution release testing system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114935287A (en) * | 2022-04-06 | 2022-08-23 | 北京理工大学 | Active jet chemical energy distribution release testing system and method |
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