CN115752120A - Testing device and method for distribution of damage elements of warm-pressing explosive - Google Patents
Testing device and method for distribution of damage elements of warm-pressing explosive Download PDFInfo
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Abstract
The invention discloses a test device and a test method for distribution of warm-pressing explosive damage elements, which relate to the technical field of explosion and engineering protection and comprise a trench unit and a detection unit, wherein the trench unit comprises a trench structure and a separation blocking frame, and the separation blocking frame is detachably connected in the trench structure; the detection unit comprises a shock wave acquisition module and a thermal effect acquisition module, the shock wave acquisition module is used for acquiring shock wave pressure data of the bottom wall and the side wall of the trench structure, and the shock wave acquisition module is used for acquiring temperature data inside the trench structure. The first data acquisition instrument is used for acquiring shock wave pressure data, the second data acquisition instrument is used for acquiring temperature data, the range and the strength of the high-temperature damage element can be presumed through the temperature data, the explosion damage characteristics and the distribution rule of the pressure explosive in the trench can be simulated, and the range and the strength of the presumed shock wave damage element can be presumed through the shock wave pressure data.
Description
Technical Field
The invention relates to the technical field of explosion and engineering protection, in particular to a test device and a test method for distribution of warm-pressing explosive damage elements.
Background
The trench is an important component of the battle field defense, and the excellent combat performance and the simple and fast manufacturing method of the trench enable the trench to be widely used in the battle. The trench is a trench dug along the front of the formation for fighting, and the fighter is in the trench to attack the external enemy. In modern wars, trenches are still used in a large number of battlefields, which can efficiently withstand the attack of traditional destruction elements such as ammunition fragments, and the intensity of explosion shock waves is greatly reduced after the explosion shock waves reach due to the underground trench structure.
Along with the development of science and technology, various high-energy and high-efficiency warheads are rapidly developed, warm-pressing explosives are used more and more in warm-pressing bomb actual combat of the warheads, the warm-pressing explosives have the characteristics of high explosive and fuel air explosives, and the warm-pressing explosives are high explosive rich in fuel. The explosion velocity is generally 3-4 km/s, which is much lower than that of high explosive (typically 8 km/s); at the same time, a large amount of oxygen is extracted from the ambient air during the explosion process, resulting in an oxygen-deficient environment. The key point is that the powder of aluminum, boron, silicon, titanium, magnesium, zirconium and other substances is added into the warm-pressing explosive, and the powder beams are ignited in a heating state and release a large amount of energy, so that the heat effect and the pressure effect of the warm-pressing explosive are greatly enhanced. Strong shock waves are formed during explosion, and can cause serious damage to personnel, workers and equipment; the thermal effect of the warm-pressing explosive can burn off oxygen in the air, so that a detonation point area is temporarily lack of oxygen.
At present, the distribution research of the thermal pressure explosive explosion damage elements in the special protection structure is less, so that a test device and a method for the distribution of the thermal pressure explosive damage elements are needed, the thermal pressure explosive explosion damage characteristics and the distribution rules in the trench are simulated, and the protection performance of the trenches of different types to the thermal pressure explosive explosion damage elements is further contrastively analyzed, so that the optimization of the trench protection structure is guided, the battlefield viability of soldiers is improved, a guidance basis is provided for the practical application in warfare, experience is provided for subsequent similar tests, and a data basis is provided for the numerical simulation related to scientific research.
Disclosure of Invention
The technical problem solved by the invention is as follows: at present, the distribution of the thermal pressure explosive explosion damage elements in the special protection structure is rarely researched, so that a test device and a method for the distribution of the thermal pressure explosive damage elements are needed, the explosion damage characteristics and the distribution rule of the thermal pressure explosive in the trench are simulated, and the protection performance of the trenches of different types on the thermal pressure explosive explosion damage elements is compared and analyzed, so that the optimization of the trench protection structure is guided.
In order to solve the technical problems, the invention provides the following technical scheme: a test device for distribution of warm-pressing explosive damage elements comprises a trench unit and a detection unit, wherein the trench unit comprises a trench structure and a separation blocking frame, and the separation blocking frame is detachably connected in the trench structure; the detecting unit comprises a shock wave collecting module and a thermal effect collecting module, the shock wave collecting module is used for collecting shock wave pressure data of the bottom wall and the side wall of the trench structure, the shock wave collecting module is used for collecting temperature data inside the trench structure, and the shock wave collecting module and the thermal effect collecting module are fixedly installed in the trench structure.
As a preferred scheme of the test device for distribution of the damage elements of the warm-pressing explosive, the test device comprises the following components: the trench structure comprises a first trench and a second trench, the first trench and the second trench are arranged in a crossed and vertical mode, and the separating and blocking frame is detachably connected with the inner wall of the first trench or the inner wall of the second trench.
As a preferred scheme of the test device for distribution of the damage elements of the warm-pressing explosive, the test device comprises the following components: the cross sections of the first trench and the second trench are isosceles trapezoids.
As a preferred scheme of the test device for distribution of damage elements of the warm-pressing explosive, the test device comprises: the shock wave acquisition module comprises a pressure sensor and a first data acquisition instrument, the pressure sensor is electrically connected with the first data acquisition instrument, and the pressure sensor is fixedly installed on the inner wall of the first trench or the second trench.
As a preferred scheme of the test device for distribution of the damage elements of the warm-pressing explosive, the test device comprises the following components: the thermal effect acquisition module comprises a temperature measuring sensor, an infrared temperature measuring sensor, a fixed support and a second data acquisition instrument, wherein the bottom of the fixed support is fixedly connected with the inner wall of a first trench or a second trench, the top of the fixed support is fixedly connected with the temperature measuring sensor or the infrared temperature measuring sensor, the temperature measuring sensor is electrically connected with the second data acquisition instrument, and the infrared temperature measuring sensor is electrically connected with the second data acquisition instrument.
A test method for distribution of damage elements of a warm-pressing explosive comprises the steps of calibrating the positions of explosion points; adjusting the shape of the accommodating space in the trench unit; measuring shock wave pressure data and temperature data through a detection unit; and collecting the shock wave pressure data and the temperature data.
As a preferable scheme of the test method for the distribution of the damage elements of the warm-pressing explosive, the method comprises the following steps: the shape of the containing space in the first trench or the second trench is changed by adjusting the position of the separating baffle on the inner wall of the first trench or the second trench.
As a preferable scheme of the test method for the distribution of the damage elements of the warm-pressing explosive, the method comprises the following steps: collecting shock wave pressure data includes: numbering the pressure sensors; the pressure sensor measures to obtain shock wave pressure data; and the pressure sensors correspond to the shock wave pressure data one by one and are stored through the first data acquisition instrument.
As a preferable scheme of the test method for the distribution of the damage elements of the warm-pressing explosive, the method comprises the following steps: collecting temperature data includes: numbering the temperature measuring sensors and the infrared temperature measuring sensors; and dividing the installation positions by taking the explosion point as the circle center and r as the radius, wherein more than two installation positions are arranged.
As a preferred scheme of the test method for the distribution of the damage elements of the warm-pressing explosive, the installation position is judged; if the mounting position is not shielded from the explosion point, the mounting position is provided with a temperature measuring sensor; if the mounting position is shielded from the explosion point, the mounting position is provided with an infrared temperature measurement sensor; the temperature sensors and the infrared temperature sensors are in one-to-one correspondence with the temperature data and are stored through the second data acquisition instrument.
The invention has the beneficial effects that: the first data acquisition instrument is used for acquiring shock wave pressure data, the second data acquisition instrument is used for acquiring temperature data, the range and the strength of the high-temperature damage element can be presumed through the temperature data, the explosion damage characteristics and the distribution rule of pressure explosives in the trench can be simulated, the range and the strength of the shock wave damage element can be presumed through the shock wave pressure data, the separation blocking frame is fixed at different positions in the trench unit, the interior of the separation trench unit can be separated into different shapes, experiments on trench units of different shapes are facilitated, the experiments are more flexible, the shock wave pressure data and the temperature data are acquired, the protection performance of trenches of different forms of types on the explosion damage element of the pressure explosives is compared and analyzed, the optimization of the trench protection structure is facilitated to guide, the battlefield survival ability of soldiers is improved, a guide basis is provided for the practical application in war, experience is provided for subsequent similar experiments, and a data basis is provided for the simulation of related numerical simulation of scientific research.
Drawings
Fig. 1 is a schematic structural view of a trench unit in a test apparatus for distribution of thermal-compression explosive damage elements according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a basic structure of a square detection unit in a test device for distribution of damage elements of a warm-pressing explosive according to an embodiment of the present invention.
Fig. 3 is a schematic top view of a trench unit in a testing apparatus for distribution of thermal-compression explosive damage elements according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of a trench unit in a test apparatus for distribution of damage elements of thermal-compression explosives according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a separating barrier in a testing apparatus for distribution of damage elements of thermal-compression explosives according to an embodiment of the invention.
Fig. 6 is a basic flow chart of a test method for distribution of damage elements of a warm-pressing explosive according to an embodiment of the present invention.
Fig. 7 is a schematic cross-sectional structure diagram of a trench structure experiment according to a test method for distribution of thermal-compression explosive damage elements according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a time-course evolution process of pressure on the bottom wall of a trench structure in a warm-pressing explosive explosion test in a test method for distribution of damage elements of warm-pressing explosives provided by an embodiment of the present invention.
Fig. 9 is a schematic diagram of a time-course evolution process of pressure on a side wall surface of a warm-pressing explosive explosion test trench structure in a test method for distribution of warm-pressing explosive damage elements according to an embodiment of the present invention.
Fig. 10 is a temperature data diagram collected by a temperature sensor in a warm-pressing explosive explosion test according to a test method for warm-pressing explosive damage element distribution according to an embodiment of the present invention.
Fig. 11 is a temperature data diagram collected by an infrared temperature sensor in a warm-pressing explosive explosion test according to a test method for warm-pressing explosive damage element distribution according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, and it is apparent that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments.
Example 1
Referring to fig. 1 to 5, in an embodiment of the present invention, a test apparatus for warm-pressing explosive damage distribution is provided, including a trench unit 100 and a detection unit 200, where the trench unit 100 includes a trench structure 101 and a separation barrier frame 102, and the trench structure 101 is detachably connected to the separation barrier frame 102.
Preferably, a trench can be pre-dug in the ground, and then the trench structure 101 is placed in the trench, and the partition frame 102 is disposed corresponding to the cross section of the trench structure 101. (refer to fig. 5) the separating and blocking frame 102 is preferably made by cutting and welding steel plates, fixing plates can be arranged at two ends of the separating and blocking frame 102, fixing lugs are arranged on the separating and blocking frame 102 and holes are formed in the fixing lugs, so that the separating and blocking frame 102 can be conveniently fixed on the inner wall of the trench structure 101, holes can be formed in the side wall and the bottom wall of the trench structure 101, expansion bolts or steel bar pins are used for fixing, the separating and blocking frame 102 is fixed at different positions inside the trench unit 100, the inside of the separating trench unit 100 can be separated into different shapes, and experiments can be conveniently carried out on the trench units 100 with different shapes.
The detection unit 200 comprises a shock wave acquisition module 201 and a thermal effect acquisition module 202, the shock wave acquisition module 201 is used for acquiring shock wave pressure data of the bottom wall and the side wall of the trench structure 101, the shock wave acquisition module 201 is used for acquiring temperature data inside the trench structure 101, and the shock wave acquisition module 201 and the thermal effect acquisition module 202 are fixedly installed in the trench structure 101.
In this embodiment, preferably, the acquisition module 201 and the thermal effect acquisition module 202 are fixedly installed in the trench structure 101, after the thermal explosive explodes, temperature data and shock wave pressure data inside the trench structure 101 can be acquired, the range and the strength of the high-temperature damage elements can be estimated through the temperature data, the explosion damage characteristics and the distribution rule of the thermal explosive in the trench structure 101 can be simulated, the range and the strength of the shock wave damage elements can be estimated through the shock wave pressure data, and then the protection performance of the trench structure 101 in different forms on the thermal explosive explosion damage elements can be contrastively analyzed, so that the trench protection structure can be conveniently optimized and guided, the survival capability of soldiers in a battlefield can be improved, a guide basis can be provided for practical application in war, experience can be provided for subsequent similar tests, and a data basis can be provided for scientific research related numerical simulation.
The trench structure 101 includes a first trench 101a and a second trench 101b, the first trench 101a and the second trench 101b are vertically crossed, and the separating frame 102 is detachably connected to an inner wall of the first trench 101a or the second trench 101 b.
In the present embodiment, the first trench 101a and the second trench 101b preferably form a cross-shaped symmetrical structure, and the trench structure 101 with various forms and sizes can be constructed by separating and recombining the first trench 101a and the second trench 101b through more than one separating and blocking frame 102. The internal shape of the moat structure 101 includes a criss-cross formation, a T formation, an L formation, and a long straight formation. The preferred range of trench structure 101 dimensions includes the dimensions of 1m, 3m, 5m, 7m, 9m, 10m achievable for a crisscross, T, L-shaped trench structure 101; the test edge length can be 2m to 20m for long straight line type structures. The separation retaining frames 102 are fixed at different positions inside the trench unit 100, so that the inside of the separation trench unit 100 can be separated into different shapes, the trench unit 100 with different shapes can be conveniently tested, more actual reference conditions can be conveniently simulated, more experimental data can be obtained, and the test operation is convenient.
The first moat 101a and the second moat 101b are isosceles trapezoids in cross section.
In this embodiment, the cross-sectional structures of the first trench 101a and the second trench 101b are preferably isosceles trapezoids, which are more suitable for the slope and shape of the actual field condition, and other cross-sectional structures can be designed and used in advance according to the test requirements.
The shock wave acquisition module 201 comprises a pressure sensor 201a and a first data acquisition instrument 201b, wherein the pressure sensor 201a is electrically connected with the first data acquisition instrument 201b, and the pressure sensor 201a is fixedly installed on the inner wall of the first trench 101a or the second trench 101 b.
In this embodiment, preferably, the pressure sensor 201a may be a PCB pressure sensor, when in use, a bottom wall or a wall surface in the first trench 101a or the second trench 101b of the PCB pressure sensor may be flush, the pressure sensor 201a is configured to detect shock wave pressure data, the shock wave pressure data detected by the pressure sensor 201a when the thermal explosive explodes is a mechanical signal, and the mechanical signal is converted into an electrical signal and input to the first data acquisition instrument 201b for recording and storing.
The thermal effect acquisition module 202 comprises a temperature measurement sensor 202a, an infrared temperature measurement sensor 202b, a fixing support 202c and a second data acquisition instrument 201d, wherein the bottom of the fixing support 202c is fixedly connected with the inner wall of the first trench 101a or the second trench 101b, the top of the fixing support 202c is fixedly connected with the temperature measurement sensor 202a or the infrared temperature measurement sensor 202b, the temperature measurement sensor 202a is electrically connected with the second data acquisition instrument 201d, and the infrared temperature measurement sensor 202b is electrically connected with the second data acquisition instrument 201d.
Preferably, in this embodiment, the thermal temperature measurement sensor 202a may be a contact type platinum rhodium wire thermocouple temperature sensor, the infrared temperature measurement sensor 202b and the temperature measurement sensor 202a are mounted and fixed by an existing fixing bracket 202c, and the fixing bracket 202c may be made of an existing fixing rod or supporting rod, and is used for fixing the infrared temperature measurement sensor 202b and the temperature measurement sensor 202a, collecting temperature data of the thermal explosive explosion by the infrared temperature measurement sensor 202b and the temperature measurement sensor 202a, and recording and storing the temperature data by the second data collector 201d.
The first data acquisition instrument 201b acquires shock wave pressure data, the second data acquisition instrument 201d acquires temperature data, the range and the strength of high-temperature damage elements can be inferred through the temperature data, the explosion damage characteristics and the distribution rules of pressure explosives in the trench can be simulated, the range and the strength of the presumed shock wave damage elements can be inferred through the shock wave pressure data, the separation blocking frames 102 are fixed at different positions in the trench unit 100, the interior of the separation trench unit 100 can be separated into different shapes, experiments can be conducted on the trench units 100 with different shapes conveniently, the shock wave pressure data and the temperature data are acquired, the protection performance of different types of trenches on the explosion damage elements of the temperature and pressure explosives can be contrastively analyzed, the optimization of the trench protection structure is guided, the battlefield viability of soldiers is improved, a guide basis is provided for the actual application in war, experiences are provided for subsequent similar experiments, and a data basis is provided for the simulation of relevant numerical simulation of scientific research.
Example 2
Referring to fig. 3 to 7, another embodiment of the present invention is based on the previous embodiment, and is different from the previous embodiment. A test method for distribution of damage elements of warm-pressing explosives comprises the following steps:
s1, calibrating the position of an explosion point.
In this embodiment, the test explosive under the test model is preferably a warm-pressing explosive but is not limited to one of the warm-pressing explosives, TNT and other explosives containing Al are also within the scope of the experiment, and the explosion test of the warm-pressing explosives with different equivalent gradients can also be used. A trench can be pre-excavated in the ground and the trench structure 101 can be placed in the trench, the trench structure 101 can be fabricated using prefabricated modules, including steel structures or prefabricated concrete modules.
And S2, adjusting the shape of the accommodating space in the trench unit 100.
The shape of the internal receiving space of the first or second trench 101a, 101b is changed by adjusting the position of the separating barrier 102 on the internal wall of the first or second trench 101a, 101 b.
Can punch at trench structure 101 lateral wall and diapire, use expansion bolts or reinforcing bar round pin to fix, fix the different positions in trench unit 100 inside through separating fender frame 102, can separate into different shapes with separating trench unit 100 inside, be convenient for experiment the trench unit 100 of different shapes.
Referring to fig. 3 and 4, fig. 3 shows the body of a crisscross moat structure 101, in which 1, 2, 3 and 4 in fig. 3 are four sides, respectively, and 1, 3 are 5m,2 and 4 are 10m in length, and are combined with each other at the center of the cross to form the test body shown in fig. 4. Preferentially in this embodiment, in fig. 3, 5 is a pressure measurement point of the bottom wall of the trench structure 101, a measurement point of the bottom wall of the intersection center of the trench structure 101 is taken as a reference, 2m is taken as a space, a plurality of pressure measurement points are arranged along the central axis line of four sides in a radiation manner, 6 is a side wall surface pressure measurement point, and the number of optimized measurement points is staggered between the side wall surface pressure measurement points 1 and 3. The whole isosceles trapezoid of trench structure 101 cross section, trench opening width 90cm of trench structure 101, trench bottom width 50cm of trench structure 101, trench structure 101's lateral wall and diapire contained angle are 98, degree of depth 1.4m, and wall thickness 5 is 20cm, simulates the trench structure under the actual operation environment of field operations.
Referring to fig. 6, the pressure measurement 10 of the side wall surface of the trench structure 101 is set to be vertical 1m, and the abdomen and chest position of a fighter in the trench is simulated; 40 is a bottom wall pressure measuring point; 20, a PVC pipeline with the diameter of 2cm is arranged in advance for a sensor cable to pass through during the test; 30 is thick soil layer, and thick soil layer 30 flushes with the trench mouth place plane of trench structure 101, and the degree of depth is not limited, and thick soil layer 30 can absorb the stress wave of transmitting on trench structure 101 after the explosion, avoids trench structure 101 to appear destroying for the experimental body satisfies the experimental requirement of different equivalent weight gradients.
And S3, measuring the pressure data and the temperature data of the shock waves through the detection unit 200.
The shock wave pressure data detected by the pressure sensor 201a during the explosion of the warm-pressure explosive is a mechanical signal, and the mechanical signal is converted into an electrical signal and is input into the first data acquisition instrument 201b for recording and storing.
And S4, collecting impact wave pressure data and temperature data.
Collecting shock wave pressure data includes:
numbering the pressure sensors 201 a;
the pressure sensor 201a measures shock wave pressure data;
the pressure sensors 201a are in one-to-one correspondence with the shock wave pressure data and are stored by the first data acquisition instrument 201 b.
Collecting temperature data includes:
numbering the temperature measurement sensors 202a and the infrared temperature measurement sensors 202b;
and dividing the installation positions by taking the explosion point as the circle center and r as the radius, wherein more than two installation positions are arranged.
Judging the installation position;
if the mounting position is not shielded from the explosion point, the mounting position is provided with a mounting temperature sensor 202a;
if the mounting position is shielded from the explosion point, the mounting position is provided with an infrared temperature measurement sensor 202b;
the temperature sensors 202a and the infrared temperature sensors 202b are in one-to-one correspondence with the temperature data and are stored by the second data acquisition instrument 201d.
The temperature measurement sensor 202a and the infrared temperature measurement sensor 202b are arranged at a certain distance from the center of explosion of the explosion point, the temperature measurement sensor 202a can directly measure the temperature of a detection point, an optical system on the infrared temperature measurement sensor 202b collects infrared radiation energy generated when the temperature-pressure explosive explodes, the infrared energy is focused on a photoelectric detector and is converted into corresponding electric signals, the temperature of different ranges of the surface of the fireball in the explosion area is displayed after processing, the infrared temperature measurement sensor 202b can better detect the temperature under the condition that shielding exists between the installation position and the explosion point, namely, the infrared temperature measurement sensor 202b is installed on the bottom wall or the corner of the moat structure 101, the environment temperature where the infrared temperature measurement sensor is located and the observed temperature of the explosion ignition ball are detected, so that whether shielding exists between the installation position and the explosion point exists or not can be compared, whether the temperature of the explosion point fireball is detected differently, and the penetrating capability of the infrared light emitted by the explosion ignition ball to the moat structure 101 is detected.
The separation blocking frame 102 is fixed at different positions in the trench unit 100, the interior of the separation trench unit 100 can be separated into different shapes, the trench units 100 in different shapes are tested, shock wave pressure data and temperature data are collected, and then the protective performance of different types of trenches on temperature-pressure explosive explosion damage elements is contrastively analyzed, so that the trench protective structure is optimized and guided, the battlefield viability of soldiers is improved, a guidance basis is provided for practical application in war, experience is provided for subsequent similar tests, and a data base is provided for scientific research related numerical simulation.
Example 3
Referring to fig. 8 to 11, another embodiment of the present invention is different from the first embodiment in that an experimental verification of a device and a method for testing distribution of damage elements of thermal-compression explosives is provided, in order to verify and explain the technical effects adopted in the method, the embodiment adopts a conventional technical scheme and the method of the present invention to perform a comparative test, and compares the test results by means of scientific demonstration to verify the actual effects of the method.
The pressure sensor 201a adopted in the embodiment is a PCB pressure sensor, the PCB pressure sensor is a high-response frequency sensor, the response time is within 1us, the sensor range is between 0.34MPa and 6.8MPa, and the response and range required by the test can be met.
The thermal temperature measurement sensor 202a is a contact type platinum rhodium wire thermocouple temperature sensor. Wherein, the thermal temperature measurement sensor 202a is arranged on the side wall surface of the trench unit 100 to detect the temperature of a certain position in the trench in the explosive explosion range. And the infrared temperature measuring sensor 202b is arranged at the corner of the intersection of the trench unit 100 and is used for detecting the ambient temperature of the intersection and the observed temperature of the explosion fire ball.
In this example. The explosive points are arranged at different heights of the cross center, the warm-pressing explosives are formed into explosive columns with different equivalent weights, and the explosive columns are hung at different heights through a wood tripod. The PCB pressure sensor is numbered as: from crossing center diapire to long section diapire be 1 to No. 5, long section lateral wall face 6 to No. 10, short section diapire 11 to No. 12, short section lateral wall face 13 to No. 15 in proper order, above PCB pressure sensor corresponds the range and is respectively: 3.4MPa, 1.38MPa, 0.69MPa, 1.38MPa, 0.69MPa 0.69MPa, 0.34MPa, 1.38MPa, 3.4MPa. Three contact type platinum rhodium wire thermocouple temperature sensors are fixed on the long section wall surface, and two platinum rhodium wire thermocouple temperature sensors are fixed on the short section wall surface. After all the test systems are debugged, explosion tests of different heights of thermal pressure explosives, such as 0.3kg, 0.5kg, 1kg and 1kg (TNT), are carried out, and partial test results are shown in fig. 8 to 11.
In the further design scheme of this embodiment, the distribution of the damaged elements in the trench of the trench unit 100 under different coupling conditions of the pressure explosive explosion in the trench can be obtained by conducting three tests of the temperature-pressure explosive explosion in the intersection center, the explosion flush with the opening, and the explosion in the space outside the opening around the trench unit 100. In a further design scheme of the invention, the explosion center is moved to the short section end or the long section end to research the diffraction analysis of the explosive explosion damage element. In a further embodiment of the present invention, the explosion center is moved to the surface of the thick soil layer outside the trench unit 100 to simulate the distribution of the thermal explosive explosion damage elements in the trench unit 100 under actual combat conditions.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A test device for distribution of warm-pressing explosive damage elements is characterized by comprising
The trench unit (100) comprises a trench structure (101) and a separation blocking frame (102), wherein the trench structure (101) is detachably connected with the separation blocking frame (102);
detecting element (200), detecting element (200) include shock wave collection module (201) and by thermal effect collection module (202), shock wave collection module (201) are used for gathering the shock wave pressure data of trench structure (101) diapire and lateral wall, and shock wave collection module (201) are used for gathering the inside temperature data of trench structure (101), shock wave collection module (201) and thermal effect collection module (202) fixed mounting are in trench structure (101).
2. The warm-pressing explosive damage element distribution test device of claim 1, which is characterized in that: the trench structure (101) comprises a first trench (101 a) and a second trench (101 b), the first trench (101 a) and the second trench (101 b) are arranged in a crossed and vertical mode, and the separating blocking frame (102) is detachably connected with the inner wall of the first trench (101 a) or the inner wall of the second trench (101 b).
3. The warm-pressing explosive damage element distribution test device of claim 2, characterized in that: the first trench (101 a) and the second trench (101 b) have isosceles trapezoid cross sections.
4. The warm-pressing explosive damage element distribution test device of claim 2, characterized in that: the shock wave acquisition module (201) comprises a pressure sensor (201 a) and a first data acquisition instrument (201 b), the pressure sensor (201 a) is electrically connected with the first data acquisition instrument (201 b), and the pressure sensor (201 a) is fixedly installed on the inner wall of the first trench (101 a) or the second trench (101 b).
5. The warm-pressing explosive damage element distribution test device of claim 2, which is characterized in that: the thermal effect acquisition module (202) comprises a temperature measurement sensor (202 a), an infrared temperature measurement sensor (202 b), a fixed support (202 c) and a second data acquisition instrument (201 d), wherein the bottom of the fixed support (202 c) is fixedly connected with the inner wall of a first trench (101 a) or a second trench (101 b), the top of the fixed support (202 c) is fixedly connected with the temperature measurement sensor (202 a) or the infrared temperature measurement sensor (202 b), the temperature measurement sensor (202 a) is electrically connected with the second data acquisition instrument (201 d), and the infrared temperature measurement sensor (202 b) is electrically connected with the second data acquisition instrument (201 d).
6. A test method for distribution of damage elements of warm-pressing explosives is characterized by comprising the following steps: comprises that
Calibrating the position of an explosion point;
adjusting the shape of the inner accommodating space of the trench unit (100);
measuring shock wave pressure data and temperature data by a detection unit (200);
and collecting the shock wave pressure data and the temperature data.
7. The warm-pressing explosive damage element distribution test method of claim 6, which is characterized in that: the shape of the receiving space inside the first trench (101 a) or the second trench (101 b) is changed by adjusting the position of the separating barrier (102) on the inner wall of the first trench (101 a) or the second trench (101 b).
8. The warm-pressing explosive damage element distribution test method of claim 6, which is characterized in that: collecting shock wave pressure data includes:
-numbering the pressure sensors (201 a);
the pressure sensor (201 a) measures and obtains shock wave pressure data;
the pressure sensors (201 a) are in one-to-one correspondence with the shock wave pressure data and are stored through a first data acquisition instrument (201 b).
9. The warm-pressing explosive damage element distribution test method of claim 6, which is characterized in that:
collecting temperature data includes:
numbering the temperature sensors (202 a) and the infrared temperature sensors (202 b);
and dividing the installation positions by taking the explosion point as the circle center and r as the radius, wherein more than two installation positions are arranged.
10. The warm-pressing explosive damage element distribution test method according to claim 9, characterized in that;
judging the installation position;
if the mounting position is not shielded from the explosion point, a temperature measuring sensor (202 a) is arranged at the mounting position;
if the mounting position is shielded from the explosion point, the mounting position is provided with an infrared temperature measurement sensor (202 b);
the temperature sensors (202 a) and the infrared temperature sensors (202 b) correspond to the temperature data one by one and are stored through the second data acquisition instrument (201 d).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211483885.6A CN115752120A (en) | 2022-11-24 | 2022-11-24 | Testing device and method for distribution of damage elements of warm-pressing explosive |
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| CN202211483885.6A CN115752120A (en) | 2022-11-24 | 2022-11-24 | Testing device and method for distribution of damage elements of warm-pressing explosive |
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| CN115752120A true CN115752120A (en) | 2023-03-07 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967189A (en) * | 2012-11-22 | 2013-03-13 | 中北大学 | Explosive blast overpressure space-time field reconstruction method |
| CN105353102A (en) * | 2015-12-08 | 2016-02-24 | 西安近代化学研究所 | Comprehensive effect evaluation method for explosion of thermobaric explosive in semi-closed tunnel |
| BG112749A (en) * | 2018-06-13 | 2019-12-31 | "Трансармъри" Оод | Cumulutive–thermobaric shot |
| CN113189141A (en) * | 2021-04-21 | 2021-07-30 | 哈尔滨工业大学 | Shrinkage ratio experimental device for explosion damage of complex reinforced concrete structure |
| CN114923658A (en) * | 2022-05-18 | 2022-08-19 | 南京理工大学 | Tunnel device for researching shock wave propagation and underground structure dynamic response |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967189A (en) * | 2012-11-22 | 2013-03-13 | 中北大学 | Explosive blast overpressure space-time field reconstruction method |
| CN105353102A (en) * | 2015-12-08 | 2016-02-24 | 西安近代化学研究所 | Comprehensive effect evaluation method for explosion of thermobaric explosive in semi-closed tunnel |
| BG112749A (en) * | 2018-06-13 | 2019-12-31 | "Трансармъри" Оод | Cumulutive–thermobaric shot |
| CN113189141A (en) * | 2021-04-21 | 2021-07-30 | 哈尔滨工业大学 | Shrinkage ratio experimental device for explosion damage of complex reinforced concrete structure |
| CN114923658A (en) * | 2022-05-18 | 2022-08-19 | 南京理工大学 | Tunnel device for researching shock wave propagation and underground structure dynamic response |
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