A deep water explosive target model

Abstract

A kind of deep water explosion target model, including cylindrical shell, large T type ring muscle and small T type ring muscle are welded to the outer circumferential surface of cylindrical shell, the end surface of cylindrical shell is welded with No. 1 end cover, water-tight joint is installed on No. 1 end cover, the other end surface of cylindrical shell is connected with No. 2 end cover by flange;Equipment pedestal is arranged in the inside of cylindrical shell, the upper surface of equipment pedestal is fixed with shock absorber mounting seat, rubber shock absorber is installed on shock absorber mounting seat by fastener, and elastic installation equipment simulation piece is fixed on rubber shock absorber;Equipment pedestal on the side of shock absorber mounting seat is welded with rigid installation equipment simulation piece, shock absorber mounting strip is welded outside rigid installation equipment simulation piece, several steel wire rope shock absorbers are installed on shock absorber mounting strip by fastener, the top of several steel wire rope shock absorbers is provided with the mounting plate of instrument mounting platform, and the upper surface of the mounting plate of instrument mounting platform is fixed with measuring instrument.

Description

Technical Field

[0001] This invention relates to the field of deep-water explosion testing and measurement technology, and in particular to a deep-water explosion target model. Background Technology

[0002] Deepwater blasting refers to underwater explosions of explosive charges in deep water conditions. Currently, the assessment of the destructive power of deepwater blasts is typically conducted within a pressure vessel by pressurizing to simulate a deep-water environment. Pressure sensors are used to measure the pressure-time history of the explosive charge, and the processed data, including characteristic parameters such as shock wave energy, bubble energy, and total energy, are compared with a TNT benchmark charge to evaluate the destructive power of the explosive charge in deepwater blasting. However, the above assessment method only characterizes the output energy of the explosive charge in deepwater blasting and does not reflect the effective utilization rate of energy or the destructive power against underwater targets. Furthermore, due to the strength requirements of the pressure vessel itself and the presence of reflected waves from the walls, experimental conditions such as the amount of explosive charge and the simulated water depth are strictly limited.

[0003] The ideal way to assess the destructive power of deep-sea explosions is to conduct a deep-sea explosion dynamic response measurement test on a target model of a deep-sea target under the action of explosive charge in an actual deep-sea environment, and then use the dynamic response measurement results to assess the destructive power.

[0004] Currently, there is no target model in existing technology for assessing the destructive power of deep-water explosions, thus failing to provide a technical basis for assessing the destructive power of deep-water explosions with explosive charges. Summary of the Invention

[0005] In response to the shortcomings of the existing production technology, the applicant provides a reasonably structured deep-sea explosion target model, which can provide a technical basis for assessing the destructive power of deep-sea explosions with explosive charges.

[0006] The technical solution adopted in this invention is as follows:

[0007] A deep-water explosive target model includes a cylindrical shell. Large T-shaped ribs are welded to both ends of the outer circumference of the cylindrical shell. Multiple small T-shaped ribs are evenly distributed on the outer circumference of the cylindrical shell between the two large T-shaped ribs. A No. 1 end cap is welded to one end of the cylindrical shell, and a watertight joint is installed on the No. 1 end cap. A No. 2 end cap is connected to the other end of the cylindrical shell via a flange. An equipment base is located inside the cylindrical shell. A shock absorber mounting seat is fixed to the upper surface of the equipment base. Rubber shock absorbers are installed on the shock absorber mounting seat via fasteners. An elastically mounted equipment simulation component is fixed to the rubber shock absorber. A rigidly mounted equipment simulation component is welded to the equipment base next to the shock absorber mounting seat. A shock absorber mounting strip is welded to the outside of the rigidly mounted equipment simulation component. Several wire rope shock absorbers are installed on the shock absorber mounting strip via fasteners. A mounting plate for an instrument mounting platform is set on top of the several wire rope shock absorbers. A measuring instrument is fixed to the upper surface of the mounting plate of the instrument mounting platform.

[0008] Its further technical solution lies in:

[0009] Several strain gauges are installed at the bottom of the equipment base.

[0010] Acceleration sensors are arranged on both the flexible installation equipment simulator and the rigid installation equipment simulator.

[0011] An internal camera is mounted inside the cylindrical housing via a bracket, and a water leakage alarm is installed inside the cylindrical housing below the equipment base.

[0012] An external camera and an external lighting source are also installed on the outside of the cylindrical shell.

[0013] A depth gauge is installed on the No. 2 end cap, and a pressure sensor is placed on the outer surface of the target model.

[0014] The measuring instrument is connected to the main controller via a composite cable that passes through a watertight connector. The composite cable is mainly used for communication, power supply, and detonation.

[0015] A propellant positioning bracket is installed on the outer surface of the target model, and the propellant is fixed on the propellant positioning bracket.

[0016] The explosive charge is located directly below the target model. An electric detonator is installed on the explosive charge, which is connected to a detonation cable. The detonation cable passes through a watertight joint and is connected to a composite cable.

[0017] The cylindrical shell is placed horizontally, and the bottom of the cylindrical shell is equipped with supporting feet.

[0018] The beneficial effects of this invention are as follows:

[0019] This invention features a compact and rational structure, is easy to operate, and simulates a typical reinforced cylindrical shell structure of a deep-water target. It can measure and obtain the strain at typical locations of the reinforced cylindrical shell structure under explosive action and the acceleration response of equipment simulation components with different installation methods. It can be used for deep-water explosion damage assessment tests, providing a technical basis for assessing the damage power of explosive charges in deep-water explosions. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the target model of the present invention.

[0021] Figure 2 for Figure 1 Side view.

[0022] Figure 3 This is a diagram showing the layout of the target model measurement system and the charge arrangement of the present invention.

[0023] Figure 4 for Figure 3 Side view.

[0024] Figure 5 This is a diagram showing the overall layout of the deep-water explosion damage assessment test of this invention.

[0025] Figure 6 This is a deep-water explosion pressure curve diagram of the present invention.

[0026] Figure 7 This is a typical positional strain curve of the deep-water explosion target model of the present invention.

[0027] Figure 8 This is an acceleration curve of the simulated component of the deep-water explosive elastic installation device of the present invention.

[0028] Figure 9 This is an acceleration curve of the simulation component of the deep-water explosion rigid installation equipment of the present invention.

[0029] The components include: 1. Large T-shaped ring reinforcement; 2. Cylindrical shell; 3. Small T-shaped ring reinforcement; 4. Flange; 5. No. 1 head; 6. Watertight joint; 7. Flexible installation equipment simulation component; 8. Rubber shock absorber; 9. Shock absorber mounting base; 10. Equipment base; 11. Rigid installation equipment simulation component; 12. Mounting plate; 13. Wire rope shock absorber; 14. Shock absorber mounting strip; 15. No. 2 head; 16. Strain gauge; 17. Accelerometer; 18. Explosive charge; 19. Internal camera; 20. Leakage alarm; 21. Depth gauge; 22. External camera; 23. External lighting source; 24. Pressure sensor; 25. Measuring instrument; 26. Composite cable; 27. Explosive charge positioning bracket; 28. Electric detonator; 29. ​​Detonating cable; 30. Test vessel; 31. Hydraulic winch; 32. Type A telescopic frame; 33. Wire rope body; 34. Measuring computer. Detailed Implementation

[0030] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0031] like Figures 1-9As shown, the deep-water explosive target model of this embodiment includes a cylindrical shell 2. Large T-shaped ribs 1 are welded to both ends of the outer circumference of the cylindrical shell 2. Multiple small T-shaped ribs 3 are evenly distributed on the outer circumference of the cylindrical shell 2 between the two large T-shaped ribs 1. A first end cap 5 is welded to one end face of the cylindrical shell 2, and a watertight connector 6 is installed on the first end cap 5. A second end cap 15 is connected to the other end face of the cylindrical shell 2 via a flange 4. An equipment base 10 is located inside the cylindrical shell 2, and a shock absorber is fixed to the upper surface of the equipment base 10. A rubber shock absorber 8 is mounted on the shock absorber mounting base 9 by fasteners, and an elastic mounting equipment simulation component 7 is fixed on the rubber shock absorber 8; a rigid mounting equipment simulation component 11 is welded to the equipment base 10 located next to the shock absorber mounting base 9, and a shock absorber mounting strip 14 is welded to the outside of the rigid mounting equipment simulation component 11. Several wire rope shock absorbers 13 are mounted on the shock absorber mounting strip 14 by fasteners, and an instrument mounting platform mounting plate 12 is set on the top of the several wire rope shock absorbers 13. A measuring instrument 25 is fixed on the upper surface of the instrument mounting platform mounting plate 12.

[0032] Several strain gauges 16 are provided at the bottom of the equipment base 10.

[0033] Acceleration sensors 17 are arranged on both the flexible installation equipment simulator 7 and the rigid installation equipment simulator 11.

[0034] An internal camera 19 is mounted inside the cylindrical housing 2 via a bracket, and a water leakage alarm 20 is installed inside the cylindrical housing 2 below the equipment base 10.

[0035] An external camera 22 and an external lighting source 23 are also provided on the outside of the cylindrical housing 2.

[0036] A depth gauge 21 is installed on the second end cap 15, and a pressure sensor 24 is set on the outer surface of the target model.

[0037] The measuring instrument 25 is connected to the main controller via the composite cable 26 through the watertight connector 6. It mainly communicates, supplies power, and performs detonation work through the composite cable 26.

[0038] A charge positioning bracket 27 is installed on the outer surface of the target model, and the charge 18 is fixed on the charge positioning bracket 27.

[0039] The explosive charge 18 is located directly below the target model. An electric detonator 28 is installed on the explosive charge 18. The electric detonator 28 is connected to the detonation cable 29. The detonation cable 29 passes through the watertight joint 6 and is connected to the composite cable 26.

[0040] The cylindrical shell 2 is placed horizontally, and the bottom of the cylindrical shell 2 is provided with support feet.

[0041] The specific structure and function of the deep-sea explosive target model described in this invention are as follows:

[0042] It mainly includes a reinforced cylindrical shell, end caps at both ends, a flexible installation equipment simulation component 7, a rigid installation equipment simulation component 11, and an instrument installation platform, etc.

[0043] The reinforced cylinder is mainly composed of a cylindrical shell 2, several small T-shaped ring ribs 3, two large T-shaped ring ribs 1, and a flange 4. The two large T-shaped ring ribs 1 are welded to both ends of the cylindrical shell 2, and the small T-shaped ring ribs 3 are welded to the cylindrical shell 2, located between the two large T-shaped ring ribs 1, and evenly distributed. One end of the cylindrical shell 2 is welded to the flange 4.

[0044] Among them, the No. 1 end cap 5 is composed of a sealing plate, several T-shaped ribs and a watertight joint 6. The sealing plate is connected to the cylindrical shell 2 by welding, and the T-shaped ribs and the watertight joint 6 are welded to the sealing plate.

[0045] The second end cap 15 at the other end consists of a sealing plate and several T-shaped ribs. The sealing plate is connected to the flange 4 by several bolts and sealing strips.

[0046] Among them, the flexible installation equipment simulation component 7 is connected to several rubber shock absorbers 8 by bolts, the rubber shock absorbers 8 are installed on the shock absorber mounting base 9 by bolts, and the shock absorber mounting base 9 is welded to the equipment base 10.

[0047] Among them, the rigid installation equipment simulation component 11 is welded onto the equipment base 10.

[0048] The mounting plate 12 of the instrument mounting platform is connected to several wire rope shock absorbers 13 by bolts. The wire rope shock absorbers 13 are mounted on the shock absorber mounting strip 14 by bolts. The shock absorber mounting strip 14 is welded to the rigid installation equipment simulation part 11. The measuring instrument 25 is fixed to the mounting plate 12 by the instrument mounting strip.

[0049] The working principle of this invention is as follows:

[0050] The target model, serving as a "ruler" for assessing the destructive power of deep-water explosions, adopts a typical reinforced cylindrical shell structure typical of deep-water targets. The target model includes a reinforced cylindrical shell, an elastically mounted equipment simulator 7, a rigidly mounted equipment simulator 11, and an instrument mounting platform. Several strain gauges 16 are arranged at typical positions on the reinforced cylindrical shell structure. Accelerometers 17 are arranged at typical positions on the elastically mounted equipment simulator 7 and the rigidly mounted equipment simulator 11. The measuring instrument 25 is fixed on the instrument mounting platform and communicates, supplies power, and initiates the explosion via a composite cable 26. The explosive charge 18 is located directly below the target model.

[0051] After the charge 18 is detonated, the measuring instrument 25 acquires the strain dynamic response generated by the reinforced cylindrical shell structure, the acceleration dynamic response generated by the elastic installation device simulation component 7 and the rigid installation device simulation component 11, and transmits them to the measuring computer 34 through the composite cable 26.

[0052] By processing and analyzing the measurement data, the destructive power of a 18-barrel deep-water explosive charge can be assessed.

[0053] The working process of this invention is as follows:

[0054] Step 1: Target model assembly.

[0055] (a) Two large T-shaped ring ribs 1 are welded to both ends of the cylindrical shell 2, and small T-shaped ring ribs 3 are welded to the cylindrical shell 2, located between the two large T-shaped ring ribs 1, and evenly distributed. One end of the cylindrical shell 2 is welded to the flange 4.

[0056] (b) The No. 1 head 5 is welded to the cylindrical shell 2. The No. 1 head 5 consists of a sealing plate, several T-shaped ribs and a watertight joint 6.

[0057] (c) The flexible installation equipment simulation component 7 is connected to four rubber shock absorbers 8 by bolts. The rubber shock absorbers 8 are installed on the shock absorber mounting base 9 by bolts. The shock absorber mounting base 9 is welded to the equipment base 10.

[0058] (d) Rigidly installed equipment simulation component 11 is welded onto equipment base 10;

[0059] (e) The mounting plate 12 of the instrument mounting platform is connected to four sets of wire rope shock absorbers 13 by bolts. The wire rope shock absorbers 13 are mounted on the shock absorber mounting strip 14 by bolts. The shock absorber mounting strip 14 is welded to the rigid installation equipment simulation component 11.

[0060] (f) The second end cap 15 at the other end is connected to the flange 4 by several bolts and sealing strips. The second end cap 15 at the other end consists of a sealing plate and several T-shaped ribs.

[0061] Step 2: Setting up the measurement system.

[0062] (a) Several strain gauges 16 (E1 to E8) are attached at typical positions on the inner surface of the cylindrical shell 2, and acceleration sensors 17 (A1 and A2) are installed at typical positions on the elastically mounted equipment simulator 7 and the rigidly mounted equipment simulator 11.

[0063] (b) In order to monitor the target model and the status of charge 18, an internal camera 19, a water leakage alarm 20 and a depth gauge 21 are installed inside the target model, and an external camera 22 and an external lighting source 23 are installed outside the target model; in order to monitor the detonation status of charge 18, a deep-water explosion-specific pressure sensor 24 is arranged at a typical location outside the target model.

[0064] (c) The measuring instrument 25 is fixed on the mounting plate 12. The strain gauges 16 (E1 to E8), the acceleration sensors 17 (A1 and A2), the internal camera 19, the water leakage alarm 20, the depth gauge 21, the external camera 22, the external lighting source 23, and the pressure sensor 24 are connected to the input channel of the measuring instrument 25. The output channel of the measuring instrument 25 is connected to one end of the composite cable 26, which has communication, power supply and detonation functions. The composite cable 26 passes through the watertight connector 6 on the first end cap 5.

[0065] Step 3: Deep-water explosion test.

[0066] (a) Install a charge positioning bracket 27 on the outer surface of the target model, and fix the charge 18 on the charge positioning bracket 27. The charge 18 is located directly below the target model.

[0067] (b) Install electric detonator 28 and connect detonating cable 29;

[0068] (c) The target model is deployed from the aft deck of the test vessel 30 into the water via a hydraulic winch 31, an A-type telescopic frame 32 and a steel wire rope body 33. During the deployment process, the composite cable 26 is released. After reaching the specified depth, the other end of the composite cable 26 is connected to the measurement computer 34 on the test vessel 30.

[0069] (d) The measuring computer 34 controls the start of the measuring instrument 25 and confirms that the measuring system is normal; the depth gauge 21 confirms that the target model has reached the predetermined depth; the external camera 22 confirms that the charge 18 and the target model are in normal condition; the internal camera 19 confirms that the measuring instrument 25 is working normally.

[0070] (e) After confirming that everything is normal, detonate the explosive charge 18 and complete the data acquisition and storage of pressure, strain, acceleration and test process images;

[0071] (f) The target model is retrieved to the aft deck of the test vessel 30 via a hydraulic winch 31, an A-type telescopic frame 32 and a steel wire rope body 33, and the composite cable 26 is retracted during the retrieval process.

[0072] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A deep-water explosive target model, characterized in that: The system includes a cylindrical shell (2), with large T-shaped ribs (1) welded to both ends of the outer circumference of the cylindrical shell (2). Multiple small T-shaped ribs (3) are also evenly distributed on the outer circumference of the cylindrical shell (2) between the two large T-shaped ribs (1). A first end cap (5) is welded to one end of the cylindrical shell (2), and a watertight connector (6) is installed on the first end cap (5). A second end cap (15) is connected to the other end of the cylindrical shell (2) via a flange (4). An equipment base (10) is located inside the cylindrical shell (2), and a shock absorber mounting base (9) is fixed to the upper surface of the equipment base (10). A rubber shock absorber (8) is installed on the instrument mounting base (9) by fasteners, and an elastic installation equipment simulation component (7) is fixed on the rubber shock absorber (8); a rigid installation equipment simulation component (11) is welded on the equipment base (10) located next to the shock absorber mounting base (9), and a shock absorber mounting strip (14) is welded to the outside of the rigid installation equipment simulation component (11). Several wire rope shock absorbers (13) are installed on the shock absorber mounting strip (14) by fasteners, and an instrument mounting platform mounting plate (12) is set on the top of the several wire rope shock absorbers (13). A measuring instrument (25) is fixed on the upper surface of the instrument mounting platform mounting plate (12).

2. The deep-sea explosive target model as described in claim 1, characterized in that: Several strain gauges (16) are provided at the bottom of the equipment base (10).

3. The deep-sea explosive target model as described in claim 1, characterized in that: Acceleration sensors (17) are arranged on both the flexible installation equipment simulator (7) and the rigid installation equipment simulator (11).

4. The deep-sea explosive target model as described in claim 1, characterized in that: An internal camera (19) is installed inside the cylindrical shell (2) via a bracket, and a water leakage alarm (20) is installed inside the cylindrical shell (2) below the equipment base (10).

5. A deep-water explosive target model as described in claim 1, characterized in that: An external camera (22) and an external lighting source (23) are also provided on the outside of the cylindrical shell (2).

6. The deep-sea explosive target model as described in claim 1, characterized in that: A depth gauge (21) is installed on the No. 2 head (15), and a pressure sensor (24) is set on the outer surface of the target model.

7. A deep-sea explosive target model as described in claim 1, characterized in that: The measuring instrument (25) is connected to the main controller via a composite cable (26) through a watertight connector (6). It mainly communicates, supplies power and performs detonation work through the composite cable (26).

8. A deep-sea explosive target model as described in claim 1, characterized in that: A charge positioning bracket (27) is installed on the outer surface of the target model, and the charge (18) is fixed on the charge positioning bracket (27).

9. A deep-sea explosive target model as described in claim 7, characterized in that: The charge (18) is located directly below the target model. An electric detonator (28) is installed on the charge (18). The electric detonator (28) is connected to the detonating cable (29). The detonating cable (29) passes through the watertight joint (6) and is connected to the composite cable (26).

10. A deep-water explosive target model as described in claim 1, characterized in that: The cylindrical shell (2) is placed horizontally, and the bottom of the cylindrical shell (2) is provided with supporting feet.

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