CN113899514A - Device for simulating underwater contact explosion boundary conditions of ship back-to-air structure - Google Patents
Device for simulating underwater contact explosion boundary conditions of ship back-to-air structure Download PDFInfo
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- CN113899514A CN113899514A CN202111122943.8A CN202111122943A CN113899514A CN 113899514 A CN113899514 A CN 113899514A CN 202111122943 A CN202111122943 A CN 202111122943A CN 113899514 A CN113899514 A CN 113899514A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/50—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility
- G01N25/54—Investigating or analyzing materials by the use of thermal means by investigating flash-point; by investigating explosibility by determining explosibility
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/10—Measures concerning design or construction of watercraft hulls
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Abstract
The invention provides a device for simulating an underwater contact explosion boundary condition of a ship back empty structure, which comprises an empty iron box, horizontal wings, vertical wings, a fixing mechanism, clamping mechanisms, anchor chain buckles and anchor chains, wherein the horizontal wings and the vertical wings are arranged on the periphery of the empty iron box; the lower surface of the hollow iron box is provided with a plurality of anchor chain buckles, each anchor chain buckle is connected with one anchor chain, each anchor chain is connected with one anchor, and during testing, the hollow iron box is filled with air and used for simulating a back empty condition. The invention can simulate the back space condition and the peripheral rigid fixed boundary condition.
Description
Technical Field
The invention belongs to the technical field of underwater explosion tests, and particularly relates to a device for simulating an underwater contact explosion boundary condition of a ship back-to-air structure.
Background
The protection research of ships is more and more important. Due to the development of technologies such as ship radars and the like, the success rate of the air missile hitting the ship is increasingly reduced; and the damage of underwater submarine-launched missiles, torpedoes and the like to ships is increased gradually. Therefore, the damage effect of the underwater explosion on the ship structure is not easy to study, and the damage of the ship structure mainly comes from three aspects of shock waves and bubbles generated by the underwater explosion and later-stage inrush current load.
At present, experimental research of underwater explosion is carried out by directly placing a ship structure in water, and research of explosion damage of a back-space structure is also carried out on a water surface stage. The underwater explosion can generate violent shock waves, and meanwhile, the explosion can generate bubble pulsation, so that both the violent shock waves and the bubble pulsation can cause serious damage to a ship structure; during testing, if the structure quality is relatively small, the acceleration is greatly accelerated under the influence of explosion, and the testing precision is finally influenced. Therefore, a testing device which simulates the boundary condition of the underwater near-field explosion of the back space structure and has small structure motion amplitude is needed to be designed.
Disclosure of Invention
In view of this, the present invention provides a device for simulating an underwater contact explosion boundary condition of a ship back space structure, which can realize the simulation of an underwater near-field explosion back space condition and a boundary condition of rigid fixation around the ship back space structure, and has a small structural motion amplitude.
The invention achieves the purpose through the following technical scheme:
a device for simulating the underwater contact explosion boundary condition of a ship back empty structure comprises an empty iron box, horizontal wings, vertical wings, a fixing mechanism, a clamping mechanism, a chain shackle and a chain, wherein the horizontal wings and the vertical wings are installed around the empty iron box, the bottom of the empty iron box extends outwards and is provided with an opening, the fixing mechanism is a supporting seat which is strengthened and fixed through a plurality of transverse supporting plates and a plurality of longitudinal supporting plates, the supporting seat is arranged at the opening of the empty iron box, the periphery of the outer side of the supporting seat is connected with the empty iron box through the plurality of transverse supporting plates and the plurality of longitudinal supporting plates, the clamping mechanism is arranged on two opposite sides of the supporting seat, the clamping mechanism is installed on the lower surface of the empty iron box, and a local ship structure is installed on the supporting seat and is clamped and positioned through the clamping mechanism;
the lower surface of the empty iron box is provided with a plurality of anchor chain buckles, each anchor chain buckle is connected with one anchor chain, each anchor chain is connected with one anchor, during the test, the empty iron box is filled with air for simulating a back empty condition, and the motion amplitude of the empty iron box is limited through the anchors.
Furthermore, the empty iron box is a cuboid iron box, one of the opposite side surfaces of the cuboid iron box is provided with a horizontal wing respectively, and the other opposite side surface of the cuboid iron box is provided with a vertical wing respectively.
Furthermore, a plurality of T-shaped sections are welded in the circumferential direction inside the hollow iron box, and a plurality of triangular toggle plates are arranged at corners inside the hollow iron box.
Furthermore, a layer of porous material for absorbing shock waves generated by explosion is laid inside the hollow iron box.
Further, clamping mechanism includes just to two clamping components who arranges, clamping component includes die mould fixing base, last die mould fixing base and two electric telescopic handle, the lower surface at empty iron box is fixed to the die mould fixing base, and two electric telescopic handle one end all are fixed in on the die mould fixing base, two electric telescopic handle's the other end is the output and all connects go up the die mould fixing base, drive the removal realization structure's of going up the die mould fixing base through electric telescopic handle and press from both sides tightly fixedly.
Furthermore, the contact surface of the supporting seat and the local structure of the ship is adaptive to the shape of the local structure of the ship.
Furthermore, an attachment lug matched with the clamping mechanism is arranged on the local structure of the ship.
Furthermore, eight threaded holes used for connecting the supporting seat with the local structure of the ship are formed in the contact surface of the supporting seat with the local structure of the ship.
Furthermore, the local structure of the ship is an arc-shaped structure, and the contact surface between the corresponding supporting seat and the local structure of the ship is an arc-shaped surface.
Furthermore, four anchor chain buckles are arranged on the lower surface of the hollow iron box along a rectangular array; the longitudinal supporting plate and the transverse supporting plate are triangular plates.
Compared with the prior art, the device for simulating the underwater contact explosion boundary condition of the ship back-to-air structure has the following advantages:
the simulation of near field explosion back of the body empty condition under water and rigid fixed boundary condition all around can be realized through this application, has increased the inertia of structure thing through connecting empty iron box and anchor chain simultaneously, can weaken the motion by a wide margin that the explosion shock wave arouses by a wide margin, can also pass through anchor chain restriction motion range simultaneously, has improved experimental security greatly.
The self structure of this application and the installation between the experimental model is simple and easy, and the accessible is opened threaded hole in advance on the model and is connected model and testing arrangement threaded connection, puts whole device under water and can carry out near field explosion test under water afterwards.
Drawings
The drawings and description will more clearly explain the illustrative embodiments and provide a further understanding and are not to be construed as limiting the invention. In the drawings:
fig. 1 is a schematic structural diagram of an apparatus (without an anchor chain and a clamping mechanism) for simulating an underwater contact explosion boundary condition of a ship back-to-air structure according to an embodiment of the invention;
FIG. 2 is a schematic structural view of an empty iron box;
fig. 3 is a schematic structural diagram of an apparatus (installation anchor chain) for simulating an underwater explosion boundary condition of a ship back-to-air structure according to an embodiment of the invention;
fig. 4 is a schematic structural view of the clamping mechanism.
Description of reference numerals:
1-empty iron box, 2-horizontal wing, 3-vertical wing, 4-anchor chain buckle, 5-transverse support plate, 6-fixing mechanism, 7-longitudinal support plate, 8-triangular toggle plate, 9-T section bar, 10-anchor chain, 11-anchor, 12-porous material, 13-electric telescopic rod, 14-upper model fixing seat, 15-lower model fixing seat, 16-vessel local structure and 17-attachment lug.
Detailed Description
As shown in fig. 1-4, a device for simulating the boundary condition of underwater contact explosion of a ship back empty structure comprises an empty iron box 1, horizontal wings 2, vertical wings 3, a fixing mechanism 6, a clamping mechanism, a chain buckle 4 and a chain 10, wherein the horizontal wings 2 and the vertical wings 3 are installed around the empty iron box 1, the bottom of the empty iron box 1 extends outwards and is provided with an opening, the fixing mechanism 6 is embodied as a supporting seat which is reinforced and fixed by a plurality of horizontal supporting plates 5 and a plurality of longitudinal supporting plates 7, the supporting seat is arranged at the opening of the empty iron box 1, the periphery of the outer side of the supporting seat is connected with the empty iron box 1 through a plurality of horizontal supporting plates 5 and a plurality of longitudinal supporting plates 7, the clamping mechanism is arranged at two opposite sides of the supporting seat, the clamping mechanism is installed at the lower surface of the empty iron box 1, a ship local structure 16 is installed on the supporting seat and is clamped and positioned by the clamping mechanism, the matching threaded connection is used for simulating the rigid fixed boundary conditions around;
the lower surface of the hollow iron box 1 is provided with a plurality of anchor chain buckles 4, and four anchor chain buckles 4 can be arranged on the lower surface of the hollow iron box 1 along a rectangular array; each anchor chain buckle 4 is connected with one anchor chain 10, each anchor chain 10 is connected with one anchor 11, during testing, the inside of the empty iron box 1 is filled with air and used for simulating a back empty condition, the screw thread fixing and clamping mechanism is used for simulating a boundary condition of rigid fixing of a ship structure, and the anchor 11 is used for limiting the motion amplitude of the empty iron box 1. The anchor chain 10 is directly connected with the anchor chain buckle 4, and the inertia of the model is increased through the anchor 11, so that the motion amplitude of the model is weakened; by the restoring force given by the anchor chain, the model will move within the defined area, thereby greatly increasing the safety of the experiment.
The empty iron box 1 is a cuboid iron box, one of the opposite side surfaces of the cuboid iron box is provided with a horizontal wing 2, and the other opposite side surface of the cuboid iron box is provided with a vertical wing 3. Under the action of strong impact load on the model, the wings are arranged to generate huge motion damping in corresponding directions when the structure moves, so that the structure only generates weak and negligible motion deformation such as torsion and the like, and the simulation of rigid fixation around the structure is realized.
A plurality of T-shaped sections 9 are welded in the hollow iron box 1 in the circumferential direction, and a plurality of triangular toggle plates 8 are arranged at corners in the hollow iron box 1; the structure of the hollow iron box 1 is strengthened by welding the T-shaped section 9 and the toggle plate 8, so that the device is prevented from being damaged by explosion impact; a layer of porous material 12 for absorbing shock waves generated by explosion is laid inside the empty iron box 1.
The clamping mechanism comprises two clamping assemblies which are arranged just oppositely, each clamping assembly comprises a lower model fixing seat 15, an upper model fixing seat 14 and two electric telescopic rods 13, the lower model fixing seats 15 are directly welded on the lower surface of the empty iron box 1, one ends of the two electric telescopic rods 13 are fixed on the lower model fixing seats 15, the other ends, namely the output ends, of the two electric telescopic rods are connected with the upper model fixing seats 14, and the electric telescopic rods 13 drive the upper model fixing seats 14 to move so as to realize the clamping and fixing of the structure. An auxiliary lug 17 matched with the clamping mechanism is arranged on the local structure 16 of the ship, and the auxiliary lug 17 extends into a space between the upper model fixing seat 14 and the lower model fixing seat 15; the model is fixed by adjusting the height of the telescopic rod.
The contact surface of the supporting seat and the vessel local structure 16 is adaptive to the shape of the vessel local structure 16. The method specifically comprises the following steps: the vessel local structure 16 is an arc-shaped structure, and the contact surface between the corresponding supporting seat and the vessel local structure 16 is an arc-shaped surface. The application takes the simulation of the damage influence of underwater explosion on the curved surface structure at the bottom of the ship as an example, but is not limited to the curved surface and the bottom structure.
Eight threaded holes for connecting the supporting seat with the local ship structure 16 are formed in the contact surface of the supporting seat with the local ship structure 16; such a connection enables the clamping device to be fitted to better simulate the boundary conditions of a rigid fixation.
The longitudinal supporting plate 7 and the transverse supporting plate 5 are triangular plates, and the extended fixing mechanism 6 is reinforced through the triangular supporting plates.
A pair of horizontal wings 2 and a pair of vertical wings 3 are welded in the circumferential direction of the empty iron box 1, and the horizontal wings 2 can generate large resistance when the structure moves longitudinally; while the vertical wings 3 cause the structure to drag in the horizontal direction. The shock wave generated by explosion can apply huge external force to the whole test device, and the local structure 16 of the ship is fixed on the fixing mechanism 6 by adopting threaded connection, so that the inertia of the model is greatly increased, the acceleration of the structure is reduced, and the amplitude of the structure motion is weakened; when in fixation, the clamping mechanism 4 is matched, an electric telescopic rod 13 is arranged between an upper model fixing seat 14 and a lower model fixing seat 15, and the model is fixed by adjusting the height of the telescopic rod and is used for simulating the rigid fixation boundary condition; the hollow iron box is filled with air and used for simulating a back-hollow condition, so that the consistency of a local structure and a prototype boundary condition under an impact condition is met.
When the working condition needs, the shape of the fixing mechanism 6 can be changed, and meanwhile, the horizontal wing and the vertical wing are designed according to the actual requirement; in addition, when the damage of underwater explosion to the string side structure is researched, the anchor chain buckle can be welded on a certain surface in the circumferential direction of the empty iron box.
Claims (10)
1. A device for simulating the boundary condition of underwater explosion contact of a ship back-to-the-air structure is characterized in that: comprises an empty iron box (1), a horizontal wing (2), a vertical wing (3), a fixing mechanism (6), a clamping mechanism, an anchor chain buckle (4) and an anchor chain (10), horizontal wings (2) and vertical wings (3) are arranged around the hollow iron box (1), the bottom of the hollow iron box (1) extends outwards and is provided with an opening, the fixing mechanism (6) is a supporting seat which is strengthened and fixed by a plurality of transverse supporting plates (5) and a plurality of longitudinal supporting plates (7), the supporting seat is arranged at the opening of the empty iron box (1), the periphery of the outer side of the supporting seat is connected with the empty iron box (1) through a plurality of transverse supporting plates (5) and a plurality of longitudinal supporting plates (7), clamping mechanisms are arranged on two opposite sides of the supporting seat, the clamping mechanisms are mounted on the lower surface of the empty iron box (1), and a local structure (16) of the ship is mounted on the supporting seat and clamped and positioned through the clamping mechanisms;
the lower surface at empty iron box (1) sets up a plurality of anchor chain buckles (4), and an anchor chain (10) is connected in every anchor chain buckle (4), and an anchor (11) are connected in every anchor chain (10), and during the experiment, empty iron box (1) is inside to be full of the air for simulate the empty condition of carrying on the back, restrict through anchor (11) empty iron box (1) range of motion.
2. The device for simulating the boundary condition of underwater contact explosion of the ship back space structure in claim 1, wherein: the empty iron box (1) is a cuboid iron box, one of the opposite side surfaces of the cuboid iron box is provided with a horizontal wing (2) respectively, and the other opposite side surface of the cuboid iron box is provided with a vertical wing (3) respectively.
3. The device for simulating the boundary condition of underwater contact explosion of the ship back space structure in claim 1, wherein: a plurality of T-shaped sections (9) are welded in the circumferential direction inside the hollow iron box (1), and a plurality of triangular toggle plates (8) are arranged at the corners inside the hollow iron box (1).
4. The device for simulating the boundary condition of underwater contact explosion of the ship back space structure in claim 3, wherein: a layer of porous material (12) for absorbing shock waves generated by explosion is laid inside the hollow iron box (1).
5. An apparatus for simulating the boundary condition of underwater explosion contact of a ship back-to-the-air structure according to any one of claims 1 to 4, wherein: clamping mechanism is including just to two clamping components who arranges, clamping component includes die mould fixing base (15), last mould fixing base (14) and two electric telescopic handle (13), the lower surface at empty iron box (1) is fixed in die mould fixing base (15), and two electric telescopic handle (13) one end all are fixed in on die mould fixing base (15), two electric telescopic handle's the other end promptly the output all connects last mould fixing base (14), drives the removal realization structure of going up mould fixing base (14) through electric telescopic handle (13) and presss from both sides tightly fixedly.
6. An apparatus for simulating the boundary condition of underwater explosion contact of a ship back-to-the-air structure according to any one of claims 1 to 4, wherein: the contact surface of the supporting seat and the ship local structure (16) is adaptive to the shape of the ship local structure (16).
7. The device for simulating the boundary condition of underwater contact explosion of the ship back space structure in claim 5, wherein: and an attachment lug (17) matched with the clamping mechanism is arranged on the local structure (16) of the ship.
8. The device for simulating the boundary condition of underwater contact explosion of the ship back space structure in claim 1, wherein: eight threaded holes used for connecting the supporting seat with the local ship structure (16) are formed in the contact surface of the supporting seat with the local ship structure (16).
9. The device for simulating the boundary condition of underwater contact explosion of the ship back space structure in claim 6, wherein: the vessel local structure (16) is an arc-shaped structure, and the contact surface of the corresponding supporting seat and the vessel local structure (16) is an arc-shaped surface.
10. The device for simulating the boundary condition of underwater contact explosion of the ship back space structure in claim 1, wherein: four anchor chain buckles (4) are arranged on the lower surface of the hollow iron box (1) along a rectangular array; the longitudinal supporting plate (7) and the transverse supporting plate (5) are triangular plates.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111122943.8A CN113899514B (en) | 2021-09-24 | 2021-09-24 | Device for simulating underwater contact explosion boundary conditions of ship back-to-air structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111122943.8A CN113899514B (en) | 2021-09-24 | 2021-09-24 | Device for simulating underwater contact explosion boundary conditions of ship back-to-air structure |
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| CN113899514B CN113899514B (en) | 2022-07-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495809A (en) * | 1983-03-29 | 1985-01-29 | The United States Of America As Represented By The Secretary Of The Navy | Deep depth undex simulator |
| CN103674467A (en) * | 2013-12-17 | 2014-03-26 | 哈尔滨工程大学 | Ship structure impact experiment boundary condition simulation device |
| CN203785973U (en) * | 2014-03-28 | 2014-08-20 | 哈尔滨工程大学 | Pontoon local explosion testing apparatus |
| CN109178198A (en) * | 2018-08-02 | 2019-01-11 | 哈尔滨工程大学 | It is a kind of to injure equivalent real scale bay section model for naval vessel bay section explosion experiments |
| CN112197929A (en) * | 2020-10-09 | 2021-01-08 | 哈尔滨工程大学 | Device and method for carrying out underwater explosion test on land |
-
2021
- 2021-09-24 CN CN202111122943.8A patent/CN113899514B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4495809A (en) * | 1983-03-29 | 1985-01-29 | The United States Of America As Represented By The Secretary Of The Navy | Deep depth undex simulator |
| CN103674467A (en) * | 2013-12-17 | 2014-03-26 | 哈尔滨工程大学 | Ship structure impact experiment boundary condition simulation device |
| CN203785973U (en) * | 2014-03-28 | 2014-08-20 | 哈尔滨工程大学 | Pontoon local explosion testing apparatus |
| CN109178198A (en) * | 2018-08-02 | 2019-01-11 | 哈尔滨工程大学 | It is a kind of to injure equivalent real scale bay section model for naval vessel bay section explosion experiments |
| CN112197929A (en) * | 2020-10-09 | 2021-01-08 | 哈尔滨工程大学 | Device and method for carrying out underwater explosion test on land |
Non-Patent Citations (3)
| Title |
|---|
| 张阿漫等: "《水下爆炸与舰船毁伤研究进展》", 《中国舰船研究》 * |
| 王耀辉等: "水下接触爆炸作用下的船体板架结构毁伤研究", 《中国舰船研究》 * |
| 王诗平等: "冲击波和气泡作用下舰船结构动态响应的数值模拟", 《爆炸与冲击》 * |
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