CN114894419A - Experimental device for simulating underwater contact explosion high-speed fragment load - Google Patents
Experimental device for simulating underwater contact explosion high-speed fragment load Download PDFInfo
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- CN114894419A CN114894419A CN202210315308.XA CN202210315308A CN114894419A CN 114894419 A CN114894419 A CN 114894419A CN 202210315308 A CN202210315308 A CN 202210315308A CN 114894419 A CN114894419 A CN 114894419A
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- 239000012634 fragment Substances 0.000 title claims abstract description 78
- 238000004880 explosion Methods 0.000 title claims abstract description 70
- 238000005422 blasting Methods 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000000945 filler Substances 0.000 claims abstract description 23
- 239000002360 explosive Substances 0.000 claims description 7
- 230000000977 initiatory effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000013467 fragmentation Methods 0.000 abstract description 7
- 238000006062 fragmentation reaction Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003999 initiator Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000035899 viability Effects 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
- G01M7/08—Shock-testing
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of underwater test devices, in particular to an experimental device for simulating underwater contact explosion high-speed fragment load, which comprises an explosion water tank; the prefabricated cylinder is arranged in the explosion water tank, an explosion piece and filler wrapping the explosion piece are arranged in the prefabricated cylinder, and nicks are arranged on the outer wall of the prefabricated cylinder; the detonating mechanism is connected with the blasting piece; the triangular support is arranged in the explosion water tank and used for supporting the prefabricated cylinder. Through set up prefabricated drum in blasting water tank to set up blasting piece and filler in prefabricated drum, can utilize the filler to wrap up blasting piece, thereby the protection is when blasting mechanism explodes blasting piece, and prefabricated drum is broken under the common drive of explosion and filler cushioning effect and is generated the fragmentation, satisfies the requirement that simulates out high-speed fragmentation load and form. And the experimental device for simulating the underwater contact explosion high-speed fragment load is simple in structure and easy to manufacture.
Description
Technical Field
The invention relates to the technical field of underwater test devices, in particular to an experimental device for simulating underwater contact explosion high-speed fragment load.
Background
In underwater explosion, shock waves, bubble pulsation, jet flow, high-speed fragment and the like are main load factors causing structural damage of ships, but the loads are different in time, space and strength. For near-field underwater contact explosions, not only are strong intermittent shock waves, large-scale bubble pulsations, and very fast water jets involved, but there are also dispersed high-speed fragments. The high-speed fragments of underwater contact explosion mainly come from the shell of the weapon and the external structure of the damaged ship body. The high-speed fragments present space-time distribution characteristics, have strong randomness, and cause damage to ship structures due to penetration impact on the ship structures. The problems of high speed fragment distribution, load formation and damage to near field structures have been a difficult problem of research in the academic world.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is the problem of fragment load generated by contact explosion, so that the experimental device for simulating the high-speed fragment load of underwater contact explosion is provided.
The invention provides an experimental device for simulating underwater contact explosion high-speed fragment load, which comprises an explosion water tank; the prefabricated cylinder is arranged in the explosion water tank, a blasting piece and filler wrapping the blasting piece are arranged in the prefabricated cylinder, and nicks are arranged on the outer wall of the prefabricated cylinder; the detonating mechanism is connected with the blasting piece; the triangular support is arranged in the explosion water tank and used for supporting the prefabricated cylinder.
Further, the prefabricated cylinder includes: an upper support cylinder and a lower support cylinder; the fragment generating cylinder is arranged between the upper supporting cylinder and the lower supporting cylinder, the blasting piece is arranged in the fragment generating cylinder, and the blasting piece is coaxially arranged with the upper supporting cylinder, the lower supporting cylinder and the fragment generating cylinder.
Further, the blasting piece is a cylindrical explosive.
Further, the nicks are provided on the outer peripheral wall of the fragment generation cylinder.
Further, the nicks form a plurality of fragment prefabricated shapes on the outer wall of the fragment generation cylinder, and the fragments are in any one shape of rhombus, rectangle and triangle.
Further, the priming mechanism comprises: the detonator is arranged in the fragment generation cylinder and is connected with the blasting piece; and one end of the hollow supporting circular tube penetrates through the upper supporting cylinder and is connected with the detonator, and the other end of the hollow supporting circular tube is connected with the initiator.
Further, the hollow support circular tube is connected with the initiator through an initiation cable.
And one end of the connecting piece is connected with the top of the explosion water tank, and the other end of the connecting piece is connected with the upper surface of the prefabricated cylinder.
Further, the connecting piece is a chain.
Further, the filler is made of polyurethane filling material.
The technical scheme of the invention has the following advantages:
1. the invention provides an experimental device for simulating underwater contact explosion high-speed fragment load, which comprises an explosion water tank; the prefabricated cylinder is arranged in the explosion water tank, an explosion piece and filler wrapping the explosion piece are arranged in the prefabricated cylinder, and nicks are arranged on the outer wall of the prefabricated cylinder; the detonating mechanism is connected with the blasting piece; the triangular support is arranged in the explosion water tank and used for supporting the prefabricated cylinder.
Through set up prefabricated drum in blasting water tank to set up blasting piece and filler in prefabricated drum, can utilize the filler to wrap up blasting piece, thereby guarantee when blasting mechanism explodes blasting piece, prefabricated drum is broken under the common drive of explosion and filler cushioning effect and is generated the fragmentation that has prefabricated shape, satisfies the requirement of simulating high-speed fragmentation load and forming. And the experimental device for simulating the underwater contact explosion high-speed fragment load is simple in structure and easy to manufacture. The integral structure of the prefabricated cylinder is placed on the triangular support, the bottom end of the lower supporting cylinder is fixed with the triangular support, and the stability of the prefabricated cylinder in the explosion water tank is guaranteed.
2. The invention provides an experimental device for simulating underwater contact explosion high-speed fragment load, which comprises a prefabricated cylinder and a control system, wherein the prefabricated cylinder comprises: an upper support cylinder and a lower support cylinder; the fragment generation cylinder is arranged between the upper support cylinder and the lower support cylinder, the blasting piece is arranged in the fragment generation cylinder, and the blasting piece is coaxially arranged with the upper support cylinder, the lower support cylinder and the fragment generation cylinder; thereby guaranteed the blasting piece with go up support drum and lower support drum and fragment take place the axiality of drum, increased the accuracy of blasting.
3. The experimental device for simulating the underwater contact explosion high-speed fragment load, provided by the invention, is characterized in that the connecting piece is a chain; the chain sets up the upper surface at last support cylinder, goes up support cylinder and passes through the top fixed connection of chain and explosion water tank, through tightening up the chain, has guaranteed support cylinder and explosion water tank's stable connection, prevents rocking of support cylinder, and then prevents rocking of prefabricated cylinder in explosion water tank.
Drawings
FIG. 1 is a schematic structural diagram of an experimental device for simulating high-speed fragment load of underwater contact explosion provided by the invention;
FIG. 2 is a schematic structural view of a prefabricated cylinder;
fig. 3 is a side view of a prefabricated cylinder.
Description of reference numerals:
1-explosion water tank; 2-hollow supporting circular tube; 3-upper supporting cylinder; 4-a fragment generation cylinder; 5-a lower support cylinder; 6-a triangular bracket; 7-a connector; 8-a detonator; 9-detonating the cable; 10-a detonator; 11-a blasting element; 12-a filler; 13-prefabricating the cylinder.
Detailed Description
Referring to fig. 1 to 3, the present invention provides an experimental apparatus for simulating underwater contact explosion high-speed fragment load, including an explosion water tank 1; the prefabricated cylinder 13 is arranged in the explosion water tank 1, an explosion part 11 and a filler 12 wrapping the explosion part 11 are arranged in the prefabricated cylinder 13, and nicks are arranged on the outer wall of the prefabricated cylinder 13; the detonating mechanism is connected with the blasting piece 11; the triangular support 6 is arranged in the explosion water tank 1, and the triangular support 6 is used for supporting the prefabricated cylinder 13.
Through set up prefabricated drum 13 in blasting water tank 1 to set up blasting piece 11 and filler 12 in prefabricated drum 13, can utilize filler 12 to wrap up blasting piece 11, thereby the protection is when blasting mechanism explodes blasting piece 11, and prefabricated drum 13 is broken under the common drive of explosion and filler 12 cushioning effect and is generated the fragmentation that has the prefabricated shape, satisfies the requirement that simulates out high-speed fragmentation load and form. And the experimental device for simulating the underwater contact explosion high-speed fragment load is simple in structure and easy to manufacture. The integral structure of the prefabricated cylinder 13 is placed on the triangular support 6, and the bottom end of the lower supporting cylinder 5 is fixed with the triangular support 6, so that the stability of the prefabricated cylinder 13 in the explosion water tank 1 is ensured.
In some alternative embodiments, the pre-made cylinders 13 comprise an upper support cylinder 3 and a lower support cylinder 5, and a fragmentation generating cylinder 4; the fragment generation cylinder 4 is arranged between the upper support cylinder 3 and the lower support cylinder 5, the blasting piece 11 is arranged in the fragment generation cylinder 4, and when the blasting piece 11 is blasted by the blasting mechanism, the fragment generation cylinder 4 is driven by the explosion and the buffer action of the filler 12 to be crushed to generate fragments, so that the requirement of simulating the formation of high-speed fragment load is met. In this embodiment, the blasting element 11 is coaxially disposed with the upper supporting cylinder 3, the lower supporting cylinder 5 and the fragment generating cylinder 4, so that the coaxiality of the blasting element 11 with the upper supporting cylinder 3, the lower supporting cylinder 5 and the fragment generating cylinder 4 is ensured, and the accuracy of blasting is improved.
In some alternative embodiments, the score is provided on the peripheral wall of the fragment generation cylinder 4. In particular, the score forms a plurality of fragment pre-forms on the outer wall of the fragment generation cylinder 4, wherein the fragments are fragments formed after the explosion of the fragment generation cylinder 4. The prefabricated shape of the fragments is any one of rhombus, rectangle and triangle. In the present embodiment, a diamond-shaped chip shape is adopted. The arrangement of the nicks is selected according to the factors such as the wall thickness of the fragment generation cylinder 4 and the shape of the nicks, such that when the blasting element 11 is blasted by the blasting mechanism, the fragment generation cylinder 4 is blasted into the shape of the fragment.
In some alternative embodiments, the initiation mechanism comprises a detonator 10 and a hollow support tube 2, and an initiator 8; the detonator 10 is arranged in the fragment generation cylinder 4 and is connected with the blasting piece 11; one end of the hollow supporting circular tube 2 penetrates through the upper supporting cylinder 3 and is connected with the detonator 10, and the other end of the hollow supporting circular tube is connected with the detonator 8, so that the hollow supporting circular tube 2 connected with the detonator 8, the detonator 10 and the blasting piece 11 blast the fragment generating cylinder 4 by starting the detonator 8, and the fragments are generated by crushing in the blasting water tank 1, and the requirement of simulating the formation of high-speed fragment load is met.
The blasting piece 11 is cylindrical explosive and is detonated at the end connected with the hollow support circular tube 2 by adopting a fragment generation cylinder 4 upper surface detonation mode. The blasting piece 11, the detonator 10 and the prefabricated cylinder 13 are concentric cylinders and are arranged at the center of the height direction of the fragment generation cylinder 4, so that the coaxiality of the blasting piece 11, the upper support cylinder 3, the lower support cylinder 5 and the fragment generation cylinder 4 is ensured, and the blasting accuracy is improved.
In other alternative embodiments, the explosive element 11 may also be a spherical explosive. The concrete can be selected according to the actual situation.
In this embodiment, the filler 12 is made of a polyurethane filler material. Assembling a model prepared by adopting the filler 12 in advance on the outer sides of the hollow supporting circular tube 2, the detonator 10 and the cylindrical explosive, fastening and fixing, wherein the maximum circumference of the filler 12 is the same as the circumference of the inner wall of the fragment generating cylinder 4, so as to ensure seamless filling, sleeving the model prepared by adopting the filler 12 in advance by utilizing the fragment generating cylinder 4, and fixing the fragment generating cylinder 4 and the upper supporting cylinder 3. The assembled fragment generating cylinder 4 and the upper supporting cylinder 3 are assembled with the lower supporting cylinder 5, meanwhile, the problems of looseness, water leakage and the like of the structural joint are avoided, and the prefabricated cylinder 13 is assembled. After the prefabricated cylinder 13 is installed, the water level in the explosion water tank 1 is guaranteed to be higher than the upper surface of the prefabricated cylinder 13, the water level height is adjusted according to actual water pressure requirements, personnel are evacuated, and an explosion test is prepared.
In this embodiment, the hollow support circular tube 2 and the initiator 8 are connected by the initiation cable 9, so that the hollow support circular tube 2 and the initiator 8 are connected by the initiation cable 9, the accurate connection between the hollow support circular tube 2 and the initiator 8 is ensured, and the accuracy of the experiment is further ensured. In use, the test device needs to be tested for sensitivity and viability.
In some optional embodiments, the experimental device for simulating underwater contact explosion high-speed fragment load further comprises a connecting piece 7, wherein one end of the connecting piece 7 is connected with the top of the explosion water tank 1, and the other end of the connecting piece 7 is connected with the upper surface of the prefabricated cylinder 13; in particular, the connecting element 7 is a chain. The chain setting is at the upper surface of last support drum 3 promptly, goes up support drum 3 through the top fixed connection of chain with explosion water tank 1, through tightening up the chain, has guaranteed the stable connection of last support drum 3 with explosion water tank 1, prevents rocking of last support drum 3, and then prevents rocking of prefabricated drum 13 in explosion water tank 1.
Claims (10)
1. An experimental device for simulating underwater contact explosion high-speed fragment load is characterized by comprising:
an explosive water tank (1);
the prefabricated cylinder (13) is arranged in the explosion water tank (1), an explosion piece (11) and a filler (12) wrapping the explosion piece (11) are arranged in the prefabricated cylinder (13), and nicks are arranged on the outer wall of the prefabricated cylinder (13);
the detonating mechanism is connected with the blasting piece (11);
a-frame (6), a-frame (6) are located in explosion water tank (1), a-frame (6) are used for supporting prefabricated drum (13).
2. Experimental installation for simulating high-velocity fragment loads of underwater contact explosions according to claim 1, characterized in that said prefabricated cylinder (13) comprises:
an upper support cylinder (3) and a lower support cylinder (5);
the fragment generating cylinder (4) is arranged between the upper supporting cylinder (3) and the lower supporting cylinder (5), the blasting piece (11) is arranged in the fragment generating cylinder (4), and the blasting piece (11) is coaxially arranged with the upper supporting cylinder (3), the lower supporting cylinder (5) and the fragment generating cylinder (4).
3. An experimental device for simulating high-speed fragment load of underwater contact explosion according to claim 1, characterized in that the blasting element (11) is a cylindrical explosive.
4. An experimental device for simulating high speed rupture load of underwater contact explosion according to claim 1, characterized in that the notch is arranged on the peripheral wall of the rupture cylinder (4).
5. Experimental device for simulating high-speed fragment load of underwater contact explosion according to any one of claims 2-4, characterized in that the nicks form a plurality of fragment prefabrication shapes on the outer wall of the fragment generation cylinder (4), and the fragment prefabrication shapes are any one of rhombus, rectangle and triangle.
6. The experimental device for simulating high-speed fragment load of underwater contact explosion according to claim 5, wherein the initiation mechanism comprises:
the detonator (10) is arranged in the fragment generation cylinder (4) and is connected with the blasting piece (11);
and one end of the hollow supporting round tube (2) penetrates through the upper supporting cylinder (3) and is connected with the detonator (10), and the other end of the hollow supporting round tube is connected with the detonator (8).
7. Experimental device for simulating high-speed fragment load of underwater contact explosion according to claim 6, characterized in that the hollow support tube (2) is connected with the detonator (8) through a detonating cable (9).
8. An experimental device for simulating high-speed fragment load of underwater contact explosion according to claim 7, characterized by further comprising a connecting piece (7), wherein one end of the connecting piece (7) is connected with the top of the explosion water tank (1), and the other end is connected with the upper surface of the prefabricated cylinder (13).
9. An experimental device for simulating high-speed fragment load of underwater contact explosion according to claim 8, characterized in that the connecting piece (7) is a chain.
10. The experimental device for simulating high-speed fragment load of underwater contact explosion according to claim 1, wherein the filler (12) is made of polyurethane filling material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210315308.XA CN114894419A (en) | 2022-03-29 | 2022-03-29 | Experimental device for simulating underwater contact explosion high-speed fragment load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210315308.XA CN114894419A (en) | 2022-03-29 | 2022-03-29 | Experimental device for simulating underwater contact explosion high-speed fragment load |
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| Publication Number | Publication Date |
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| CN114894419A true CN114894419A (en) | 2022-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210315308.XA Pending CN114894419A (en) | 2022-03-29 | 2022-03-29 | Experimental device for simulating underwater contact explosion high-speed fragment load |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201844764U (en) * | 2010-11-04 | 2011-05-25 | 柴家科 | Explosive device |
| CN102226673A (en) * | 2011-04-29 | 2011-10-26 | 昆明理工大学 | Miniature exploder for testing deep sea pressure resistance of explosive |
| CN109100072A (en) * | 2018-08-21 | 2018-12-28 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | The measuring device of underwater contact explosion driving energy |
| CN208622317U (en) * | 2018-04-12 | 2019-03-19 | 西南科技大学 | A kind of explosion internal action crack propagation experimental model device |
| CN109916246A (en) * | 2019-03-29 | 2019-06-21 | 中国人民解放军陆军工程大学 | Model test device for researching explosion energy-gathering cutting and destroying underwater unexploded bomb |
-
2022
- 2022-03-29 CN CN202210315308.XA patent/CN114894419A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201844764U (en) * | 2010-11-04 | 2011-05-25 | 柴家科 | Explosive device |
| CN102226673A (en) * | 2011-04-29 | 2011-10-26 | 昆明理工大学 | Miniature exploder for testing deep sea pressure resistance of explosive |
| CN208622317U (en) * | 2018-04-12 | 2019-03-19 | 西南科技大学 | A kind of explosion internal action crack propagation experimental model device |
| CN109100072A (en) * | 2018-08-21 | 2018-12-28 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | The measuring device of underwater contact explosion driving energy |
| CN109916246A (en) * | 2019-03-29 | 2019-06-21 | 中国人民解放军陆军工程大学 | Model test device for researching explosion energy-gathering cutting and destroying underwater unexploded bomb |
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Application publication date: 20220812 |
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