CN113483982B - Biological shock tube experiment system for simulating different scenes - Google Patents
Biological shock tube experiment system for simulating different scenes Download PDFInfo
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- CN113483982B CN113483982B CN202110267262.4A CN202110267262A CN113483982B CN 113483982 B CN113483982 B CN 113483982B CN 202110267262 A CN202110267262 A CN 202110267262A CN 113483982 B CN113483982 B CN 113483982B
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Abstract
The invention provides a biological shock tube experimental system for simulating different scenes, and belongs to the technical field of explosion resistance and impact resistance of protective equipment. The system can simulate the action process of shock waves on organisms in three different scenes, namely air, water and underwater, and comprises a shock wave pipeline system, a data acquisition system, a gas distribution system, an ignition system and the like. The whole experimental device is placed in a rectangular pool embedded underground, and the water levels in the shock wave tube transmission section, the reinforcing section and the square cabin are controlled by adjusting the water level in the pool, so that the process of impact action of the explosion shock waves on organisms in the transmission process of media in the air, on the water surface and under water is completed. The experiment system can simulate the impact damage experiment of the shock waves of the anti-ship weapons with different types and different equivalent weights after the anti-ship weapons explode in the air, on the water surface and under the water to personnel in the naval vessels, and can also provide an experiment platform for the demonstration and evaluation of the explosion resistance and the impact resistance of the personnel and the protection devices thereof.
Description
Technical Field
The invention relates to the technical field of anti-riot and anti-impact of protective equipment, in particular to a biological shock tube experimental system for simulating different scenes.
Background
The guarantee of the life safety of personnel in the naval vessel plays an important role in keeping the fighting capacity and the vitality of the naval vessel. The anti-ship missiles, torpedoes and mines are typical anti-ship weapons, the modern anti-ship weapons have the characteristics of good concealment, high hit precision, great damage power and the like, and in a wartime state, ship personnel are easily damaged by explosion impact of the air anti-ship missiles, surface mines and underwater torpedoes, and shock waves generated after the anti-ship weapons explode in the air, the surface and the underwater form great threat to the life safety of personnel in the ships. Due to different propagation media of the explosion shock waves, the damage characteristics, damage mechanisms, damage thresholds and the like of the shock waves to organisms are different. Shock tube experimental systems are very common experimental systems, but the experimental systems can only simulate the propagation of shock waves in a single medium, for example, conventional shock tube experimental systems (in the air) and water shock tube experimental systems, and experimental systems which can completely simulate the action process of shock waves on organisms in three different scenes, namely in the air, on the water surface and under the water, are not available. Therefore, research and development of an impact wave biological shock tube experiment system for impact damage of the shock waves to personnel in the naval vessel in different scenes such as air, water surface and underwater has important significance for comprehensively disclosing the anti-explosion and anti-impact research of the naval vessel personnel and the protective equipment thereof.
Disclosure of Invention
The invention aims to provide a biological shock tube experimental system for simulating different scenes. The system can simulate the action process of the shock wave on organisms in three different scenes, namely air, water surface and underwater, and realizes the functions of regulating and controlling the peak pressure, the positive pressure action time and the negative pressure action time of the explosive shock wave by regulating the proportion of the premixed gas, the position of the diaphragm and the length of the transmission segment. The impact damage experiment to ship personnel after the explosion of anti-ship weapons of different types and different equivalent weights in the air, on the water surface and under the water is simulated. Therefore, the purposes of providing data support for the anti-explosion and anti-impact research work of naval vessel personnel and providing an experimental platform for the anti-explosion and anti-impact demonstration and evaluation of personnel and protection devices thereof are achieved.
The system comprises a rectangular water pool, a gas distribution system, an ignition system, a shock wave pipeline system and a data acquisition system, wherein the rectangular water pool is embedded underground and used for placing the whole experiment system, the shock wave pipeline system is arranged in the rectangular water pool, and the gas distribution system, the ignition system and the data acquisition system are connected with the shock wave pipeline system.
The rectangular water tank is provided with a water inlet and a water outlet, the water inlet is arranged on the wall of the water tank, the water outlet is arranged at the bottom of the water tank and is used for adjusting the water levels in the water tank and the shock tube, and the peak pressure, the positive pressure action time and the negative pressure action time of the explosion shock wave are adjusted and controlled by adjusting the gas proportion of premixed gas, the position of the membrane and the length of the transmission section.
The gas distribution system comprises a control panel, a pressure sensor, an instrument display, a vacuum pump, a premixed gas cylinder, an explosive gas cylinder and a pure gas cylinder, wherein the premixed gas cylinder, the explosive gas cylinder and the pure gas cylinder are respectively fixed in a safety cabinet, a gas detection alarm device is arranged in the safety cabinet, and the control panel controls the opening of the premixed gas cylinder, the explosive gas cylinder and the pure gas cylinder.
The ignition system comprises a trigger, a separation switch, a high-voltage capacitor bank, a high-voltage power supply and an igniter, wherein the high-voltage power supply is connected with the high-voltage capacitor bank, the high-voltage capacitor bank is connected with the igniter, and valves connected with the detonation tube are closed before ignition.
The shock wave pipeline system comprises a driving section, a transmission section, a shock wave enhancement section and an experiment section, wherein the gas distribution system is connected with the driving section, an igniter is arranged on the driving section, the transmission section is connected behind the driving section, the shock wave enhancement section is connected behind the transmission section, the experiment section is connected behind the shock wave enhancement section, sensors are arranged on the driving section, the transmission section and the shock wave enhancement section, and the sensors are connected with a data acquisition system. The driving section, the transmission section and the shock wave enhancement section are connected through flanges, and diaphragms are arranged among the flanges. The premixed gas is ignited in the driving section to form stable detonation, the detonation wave breaks through the diaphragm arranged between the flanges, enters the transmission section, and the shock wave strength is adjusted by adjusting the distance of the transmission section.
The experimental section is a rectangular square tube, an organism to be detected is placed in the square tube, observation windows are arranged on the top and two sides of the square tube, and a high-speed camera and a high-speed infrared thermal imager are arranged outside the observation windows.
The flexible sensor is arranged at a part to be tested of an organism to be tested, the external sensor is arranged outside the organism to be tested, the flexible sensor and the external sensor are connected with the pressure testing system, the pressure testing system is connected with the triggering system, the triggering system is connected with the high-speed camera and the high-speed infrared thermal imager, and the sensor comprises the pressure sensor, the stress strain sensor and the like.
The technical scheme of the invention has the following beneficial effects:
in the scheme, the action process of the shock wave on organisms in three different scenes, namely air, water surface and underwater, can be simulated, and the functions of regulating and controlling the peak pressure, the positive pressure action time and the negative pressure action time of the explosion shock wave are realized by regulating the proportion of the premixed gas, the position of the diaphragm and the length of the transmission segment. The impact damage experiment to ship personnel after the explosion of anti-ship weapons of different types and different equivalent weights in the air, on the water surface and under the water is simulated. Therefore, the purposes of providing data support for the anti-explosion and anti-impact research work of naval vessel personnel and providing an experimental platform for the anti-explosion and anti-impact demonstration and evaluation of personnel and protection devices thereof are achieved.
Drawings
FIG. 1 is a schematic view of a multifunctional biological shock tube assay system according to the present invention;
FIG. 2 is a schematic diagram of the shock tube testing system of the present invention simulating the action of blast waves in the air, on the water surface, and under water on an organism, wherein (a) is in the air, (b) is on the water surface, and (c) is under water;
FIG. 3 is a schematic view of the biological testing system of the present invention.
Wherein: 1-premixed gas cylinder, 2-detonation gas cylinder, 3-pure gas cylinder, 4-control panel, 5-high-voltage capacitor bank, 6-high-voltage power supply, 7-computer, 8-high-speed camera, 9-high-speed infrared thermal imager, 10-igniter, 11-driving section, 12-sensor, 13-transmission section, 14-flange, 15-diaphragm, 16-shock wave enhancement section, 17-square tube, 18-water inlet, 19-water outlet, 20-in-vitro sensor, 21-flexible sensor and 22-organism to be detected.
Detailed Description
To make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a biological shock tube experimental system for simulating different scenes.
The system comprises a rectangular water pool, a gas distribution system, an ignition system, a shock wave pipeline system and a data acquisition system.
As shown in figure 1, the rectangular water tank is embedded underground and used for placing the whole experimental device, the rectangular water tank is provided with a water inlet 18 and a water outlet 19, the water inlet 18 is arranged on the wall of the water tank, the water outlet 19 is arranged at the bottom of the water tank and used for adjusting the water level in the water tank and the shock tube, and the peak pressure, the positive pressure action time and the negative pressure action time of the explosion shock wave are adjusted and controlled by adjusting the gas proportion of the premixed gas 1, the position of the diaphragm 15 and the length of the transmission section 13.
As shown in FIG. 2, when the water tank is empty, the experimental system can simulate the action process of the air blast shock wave on the organism; when the water level in the water tank is just on the symmetry axis of the shock tube, half of the space in the shock tube is filled with the water in the water tank, and the action process of the water surface explosion shock wave on organisms can be simulated; when the water level in the water tank is higher than the shock tube pipeline, the shock tube is filled with water in the water tank, and the action process of underwater explosion shock waves on organisms can be simulated. In addition, the whole shock tube experiment system is arranged in an underground rectangular reinforced water tank, so that the water tank can play a good protection effect in the process of carrying out a shock tube experiment.
The gas distribution system comprises a control panel 4, a pressure sensor, an instrument display, a vacuum pump, a premixed gas cylinder 1, an explosive gas cylinder 2 and a pure gas cylinder 3, and the mixed gas configuration operation is completed by opening and closing a valve on the control panel. After premixing for a certain time, premixed gas or detonated gas can be filled into a shock tube, a premixed gas cylinder 1, a detonated gas cylinder 2 and a pure gas cylinder 3 are respectively fixed in a safety cabinet, and a gas detection alarm device is arranged in the safety cabinet.
The ignition system comprises a trigger, an isolating switch, a high-voltage capacitor bank 5, a high-voltage power supply 6 and an igniter 10, wherein when a trigger button is pressed, a pulse signal can be output to the isolating switch, the capacitor bank discharges instantly, the igniter generates electric sparks to ignite gas in a tube, and valves connected with the detonation tube are closed before ignition.
The shock wave pipeline system comprises a driving section 11, a transmission section 13, a shock wave enhancement section 16 and an experiment section, wherein premixed gas 1 is ignited in the driving section 11 to form stable detonation, the detonation wave breaks through a diaphragm 15 arranged between flanges 14, enters the transmission section 13, and the shock wave intensity is adjusted by adjusting the distance of the transmission section 13.
As shown in fig. 3, the experimental section is a rectangular square tube 17, the organism 22 to be tested is placed in the square tube 17, the top and two sides of the square tube 17 are provided with observation windows, and the outer side of each observation window is provided with a high-speed camera 8 and a high-speed infrared thermal imager 9; the high-speed camera 8 and the high-speed infrared thermal imager 9 are connected with a triggering system, the triggering system is connected with a pressure testing system, and the high-speed camera 8, the high-speed infrared thermal imager 9, the triggering system and the pressure testing system jointly form an organism observation system.
The flexible sensor 21 is arranged at a position to be tested of an organism 22 to be tested, the external sensor 20 is arranged outside the organism 22 to be tested, the flexible sensor 21 and the external sensor 20 are connected with the pressure testing system, the pressure testing system is connected with the triggering system, the triggering system is connected with the high-speed camera 8 and the high-speed infrared thermal imager 9, and the sensor comprises a pressure sensor, a stress strain sensor and the like.
The data acquisition system acquires damage data of organisms under the action of different equivalent explosive shock waves in the air, on the water surface and under water through various monitoring sensing devices such as various mechanical sensors, biological body surface flexible sensors, high-speed cameras, high-speed infrared thermal imagers and the like.
The method specifically comprises the following steps:
(1) Before the experiment begins, connecting a pipeline, and checking the air tightness of the pipeline; preparing a test organism, and fixing the organism in a shock tube experiment section; arranging various pressure sensors at positions of a shock tube and an organism to be tested, and installing and fixing a high-speed camera and a high-speed infrared thermal imager;
(2) Preparing a certain amount of premixed gas and detonation gas in a certain proportion according to the equivalent requirement of the simulated shock wave;
(3) According to the experimental environment requirements, water is injected into the water tank, and the water level in the water tank is adjusted, so that the impact experiment of the explosive shock waves to the organisms under different environments is simulated, and the experimental environment requirements are met.
(4) Injecting premixed gas and detonation gas into the shock tube driving section, detonating the gas in the tube by electric sparks, and recording data of a sensor, a high-speed camera and a high-speed infrared thermal imager;
(5) Processing experimental results and analyzing data.
Description of the drawings:
(1) The air is smoothly and slowly inflated in the inflation process; filling the gas according to a certain sequence, and filling inert gas firstly; then oxygen is filled;
(2) Before ignition, ensuring that each valve connected with the detonation tube is in a closed state;
(3) Experimental devices such as a gas cylinder cabinet, a control panel and the like with exposed metal shells need to be connected with a ground wire, and static electricity is eliminated to ensure experimental safety;
(4) The airtightness of the apparatus was checked before the start of the experiment. If the pressure change is less than 2kPa within 1 hour, the airtightness is satisfactory. If the device has air leakage, inert gas can be filled into the device, the valve is closed, soapy water is used for subsection detection, and the leakage position is treated until the air tightness test is passed.
(5) The experiment is carried out by selecting an area close to the window or provided with an exhaust fan, so that good ventilation is ensured, and combustible gas accumulation is avoided. Meanwhile, a corresponding monitoring probe is required to be arranged near the gas cylinder, and an alarm can be given when gas leaks.
(6) The experimental area was strictly fireworks forbidden.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (3)
1. A biological shock tube experimental system for simulating different scenes is characterized in that: the device comprises a rectangular water pool, an air distribution system, an ignition system, a shock wave pipeline system and a data acquisition system, wherein the rectangular water pool is embedded underground, the shock wave pipeline system is arranged in the rectangular water pool, and the air distribution system, the ignition system and the data acquisition system are connected with the shock wave pipeline system;
the gas distribution system comprises a control panel (4), a pressure sensor, an instrument display, a vacuum pump, a premixed gas cylinder (1), an explosive gas cylinder (2) and a pure gas cylinder (3), wherein the premixed gas cylinder (1), the explosive gas cylinder (2) and the pure gas cylinder (3) are respectively fixed in a safety cabinet, a gas detection alarm device is arranged in the safety cabinet, and the control panel (4) controls the opening of the premixed gas cylinder (1), the explosive gas cylinder (2) and the pure gas cylinder (3);
the experiment system can simulate the action process of shock waves on organisms in the naval vessels in three different scenes, namely air, water surface and underwater;
when the water in the pool is not available, the experimental system simulates the action process of the air explosion shock wave on the organisms; when the water level in the water tank is just positioned on the symmetry axis of the shock tube, half of the space in the shock tube is filled with the water in the water tank, and the action process of the water surface explosion shock wave on the organisms is simulated; when the water level in the water tank is higher than the shock tube pipeline, the shock tube is filled with water in the water tank, and the action process of underwater explosion shock waves on organisms is simulated;
the shock wave pipeline system comprises a driving section (11), a transmission section (13), a shock wave enhancement section (16) and an experiment section, wherein the gas distribution system is connected with the driving section (11), an igniter (10) is arranged on the driving section (11), the transmission section (13) is connected behind the driving section (11), the shock wave enhancement section (16) is connected behind the transmission section (13), the experiment section is connected behind the shock wave enhancement section (16), sensors (12) are arranged on the driving section (11), the transmission section (13) and the shock wave enhancement section (16), and the sensors (12) are connected with a data acquisition system;
the driving section (11), the transmission section (13) and the shock wave enhancement section (16) are connected through flanges (14), and diaphragms (15) are arranged among the flanges (14);
the experimental section is a rectangular square tube (17), an organism (22) to be detected is placed in the square tube (17), observation windows are arranged on the top and two sides of the square tube (17), and a high-speed camera (8) and a high-speed infrared thermal imager (9) are arranged on the outer sides of the observation windows;
the flexible sensor (21) is arranged at a part to be tested of the organism (22) to be tested, the external sensor (20) is arranged outside the organism (22) to be tested, the flexible sensor (21) and the external sensor (20) are connected with the pressure testing system, the pressure testing system is connected with the triggering system, and the triggering system is connected with the high-speed camera (8) and the high-speed infrared thermal imager (9).
2. The biological shock tube experimental system for simulating different scenes of claim 1, wherein: the rectangular water tank is provided with a water inlet (18) and a water outlet (19), the water inlet (18) is arranged on the wall of the water tank, and the water outlet (19) is arranged at the bottom of the water tank and used for adjusting the water level in the water tank and the shock tube.
3. The biological shock tube experimental system for simulating different scenes as claimed in claim 1, wherein: the ignition system comprises a trigger, a partition switch, a high-voltage capacitor bank (5), a high-voltage power supply (6) and an igniter (10), wherein the high-voltage power supply (6) is connected with the high-voltage capacitor bank (5), the high-voltage capacitor bank (5) is connected with the igniter (10), and valves connected with the detonation tubes are closed before ignition.
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| CN202110267262.4A CN113483982B (en) | 2021-03-11 | 2021-03-11 | Biological shock tube experiment system for simulating different scenes |
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| CN116337656A (en) * | 2023-05-26 | 2023-06-27 | 中国空气动力研究与发展中心超高速空气动力研究所 | Controllable gaseous detonation overpressure simulation device and experimental method |
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| US20110191039A1 (en) * | 2009-12-22 | 2011-08-04 | Svetlov Stanislav I | Shock wave generator for biomedical studies |
| CN203432964U (en) * | 2013-09-06 | 2014-02-12 | 中国科学技术大学 | Test device for high-pressure combustible gas leakage spontaneous combustion and shock wave induced ignition |
| CN108362584B (en) * | 2018-03-14 | 2023-09-01 | 中国人民解放军61489部队 | Shock tube experimental device for composite loading of impact explosion in water |
| CN109975358A (en) * | 2019-04-26 | 2019-07-05 | 中国矿业大学(北京) | A kind of experimental system and method for half open space gases explosion |
| CN111007106B (en) * | 2019-12-27 | 2022-04-19 | 西安近代化学研究所 | Method for testing damage effect of explosive heat on biological target |
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