CN111272815A - Experimental device based on underwater explosion method and explosive explosion energy standardized evaluation method - Google Patents
Experimental device based on underwater explosion method and explosive explosion energy standardized evaluation method Download PDFInfo
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- 238000005457 optimization Methods 0.000 abstract description 6
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- 238000010586 diagram Methods 0.000 description 3
- 238000013386 optimize process Methods 0.000 description 3
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 2
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
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Abstract
The invention discloses an experimental device based on an underwater explosion method and an explosion energy standardized evaluation method. The method ensures the complete detonation of various explosives by limiting the initial conditions of the explosive bag, adopts the ICP type underwater shock wave pressure sensor to record a pressure time-course curve, accurately calculates the work doing capability of various explosives, simultaneously compares and evaluates the work doing function levels of various explosives by measuring the underwater explosion energy of different explosives, establishes a series explosive product standardized evaluation platform, provides an idea for the process optimization and formula optimization of the explosives by the explosive underwater explosion energy standardized evaluation platform, and reduces the explosive development cost.
Description
Technical Field
The invention relates to the technical field of explosive explosion energy testing, in particular to an experimental device based on an underwater explosion method and an explosive explosion energy standardized evaluation method.
Background
At present, common explosives in China mainly comprise industrial explosives such as emulsion explosives, ammonium nitrate fuel oil explosives, water gel explosives and the like and military explosives such as RDX (dynamic random access) and HMX (high density polyethylene) and the like, and due to the fact that explosive production processes and formulas of explosive production enterprises are diversified, the explosive performance difference of the same variety of explosives is large, and the work capacities of different varieties of explosives cannot be measured scientifically and comparatively, therefore, an explosive explosion energy standard evaluation method and equipment are needed to be invented, the work capacity can be used for evaluating the explosive performance, the method which is most effective in evaluating the work capacity is an underwater explosion experiment, and the test of the explosive work capacity by using the underwater explosion experiment is more accurate and more powerful in operability compared with the traditional lead method, blasting funnel method, ballistic mortar method and ballistic.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, the invention aims to provide an experimental device based on an underwater explosion method and an explosive explosion energy standardization evaluation method, which can be used for testing the underwater explosion energy level of the same explosive variety under the condition of limiting the same initial conditions (density and volume), and also can be used for evaluating and comparing the working capacity of different explosives (such as emulsion explosives, water gel explosives, civil explosives such as ammonium nitrate fuel oil explosives and military explosives such as RDX and HMX), so that the underwater explosion energy level of certain explosive selected and optimized processes and formulas is used for judging whether the explosion performance of the same explosive variety reaches the standard or not, and powerful data is provided for explosive explosion energy standardization.
The experimental device based on the underwater explosion method comprises an explosive package, an initiation component, an explosive sample positioning component, a water supply component, a water pumping component, a pressure sensor and a steel pool, wherein the explosive sample positioning component is installed at the upper end of the steel pool, the spherical explosive package is connected with the explosive sample positioning component, the initiation component and the spherical explosive package are fixedly installed, the pressure sensor is installed at the bottom of the steel pool, the water supply component is installed at the upper end of the steel pool, the water supply component is communicated with the inside of the steel pool, the water pumping component is installed at the upper end of the steel pool, and the water pumping component is communicated with the bottom of the steel pool.
Preferably, the explosive sample positioning assembly comprises a first support frame, two groups of first fixed pulleys, a wire wheel wound with a steel wire rope, a second support frame and a second fixed pulley, the first support frame is arranged on two sides of the upper end of the steel pool, the two groups of first fixed pulleys correspond to two sides of the first support frame and are rotatably arranged with the first support frame, the two groups of first fixed pulleys are connected through wire rope transmission, the bottom end of the wire rope is fixedly connected with the second fixed pulley, one side of the upper end of the steel pool is also provided with the second support frame, the wire wheel is rotatably arranged at the upper end of the second support frame, the steel wire rope penetrates through the second fixed pulley and is connected with the spherical explosive package, the first fixed pulley is in transmission connection with a first crank handle, and the wire wheel is in transmission connection with a second crank.
Preferably, the bottom end of the steel pool is provided with a groove, and the bottom end of the steel pool is fixedly connected with the pressure sensor through a fixing line.
Preferably, the bottom end of the steel pool is sequentially paved with a damping material, a steel plate layer, a waste tire and a reinforced concrete layer from top to bottom.
Preferably, the shock absorption material is a sheet stone layer with the particle size of less than 10mm or polystyrene foam plastic.
Preferably, sand layers are filled outside the two side walls of the steel pool, and perforated brick partition walls are arranged in the middle of the sand layers.
Preferably, the water supply assembly and the steel tank are detachably mounted, and the water pumping assembly and the steel tank are detachably mounted.
Preferably, the outer side of the explosive package is wrapped by a spherical mold, the spherical mold is made of PVC materials or organic glass materials or cast aluminum shells, and the diameter of the spherical mold is 40-80 mm.
Preferably, the method for evaluating the explosion energy of the experimental device based on the underwater explosion method comprises the following steps:
s1: shaping the explosive, namely weighing a certain mass of explosive A, and making the explosive A into a spherical shape; inserting a detonator into the center of the spherical explosive sample;
s2: mounting of the test element: connecting the pressure sensor with the bottom end of the steel pool through the fixing line, and controlling the length of the fine line to enable the spherical explosive sample and the pressure sensor to be at the same horizontal height when floating;
s3: placing an explosive sample, namely applying the prepared explosive sample in the step S1, and adjusting the horizontal height of the explosive sample installation and the horizontal distance between the explosive sample installation and the pressure sensor through the explosive sample positioning assembly;
s4: water is injected, the water supply assembly is opened, water is injected into the steel pool, and the water supply assembly is moved out of the water pool after the water reaches the required water level;
s5: calculating the explosion energy value corresponding to the explosive A with a certain mass according to the value measured by the pressure sensor;
s6: performing subsequent treatment of the experiment, namely pumping water through the water pumping assembly and cleaning equipment;
s7: converting the explosive A in the step S1 into another group of explosives B to be tested, and repeating the steps S1-S6 to obtain an explosion energy value corresponding to the explosive B with a certain mass;
s8: and repeating the step S7 until all the explosives to be tested are tested, so as to obtain the explosion energy values corresponding to all the explosives to be tested under a certain mass, and drawing an explosion energy standardized evaluation table.
Preferably, the calculation formula of the underwater explosion energy of the explosive sample is as follows:
Et＝μ·Es+Eb{1}
in the formula: mu-shock wave loss coefficient; eS-specific shock wave energy at the survey point; eb-specific bubble energy at the measurement point;
{1} medium specific shock wave energy ESThe calculation formula is as follows:
{2} calculated formula for bubble energy:
{2} in the formula, the instantaneous value of the shock wave pressure in water is:
P(t)＝Pm·e-t/θ{4}
in the above formula: p (t) -pressure transient; pm-shock peak pressure; θ -time constant; r is the distance between the center of the medicine package and the sensor; w is TNT equivalent of explosive sample, kg; e-2.7183; rhoW-the density of the water; cW-speed of sound in water; t isb-correcting the bubble pulse period; c-intrinsic constants determined by the device;K1-constants determined by the equipment, sample size and position.
In the invention:
(1) the accurate and scientific test of the work doing capability of the industrial explosive is realized by means of a steel pool system;
the method ensures that various explosives including common industrial explosives are completely detonated by limiting the initial conditions of the explosive package, adopts the ICP type underwater shock wave pressure sensor to record the pressure time-course curve, accurately calculates the work capacity of various explosives, and is more accurate and scientific compared with other testing methods.
(2) Comparing and evaluating the functional level of various explosives by comparing the underwater explosion energy of different explosives;
the invention can test the underwater explosion energy level of the same explosive and the underwater explosion energy of different explosives by changing different explosive samples and limiting the initial conditions of the explosive bag, and can rapidly and scientifically compare and evaluate the work-doing capability levels of various explosives.
(3) Establishing a standardized evaluation platform of a series of explosive products;
by selecting a certain explosive with optimized process and formula as a standard, underwater explosion energy data of the primary explosive is used for judging whether the explosive work-doing capability meets the requirement or not, powerful data is provided for standardization of explosive explosion performance, and finally, a standardized evaluation platform of a series explosive product is established.
(4) The explosive development cost is reduced;
by the standard evaluation method of the underwater explosion energy of the explosive, ideas are provided for the process optimization and the formula optimization of the explosive, and the explosive development cost is reduced.
(5) The bottom end of the steel pool is sequentially provided with a bottom steel plate, a vibration damping material, a steel plate layer, a waste large excavator tire and a reinforced concrete layer from top to bottom, the outer sides of two side walls of the steel pool are filled with sand layers, and the middle part of each sand layer is provided with a perforated brick partition wall; the basic damping material is a stone layer with the grain diameter less than 10mm or polystyrene foam plastic; perforated brick partitions are arranged to reduce the environmental impact of an explosion on surrounding important buildings and personnel activity areas.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an experimental device based on an underwater explosion method, which is provided by the invention;
FIG. 2 is a system block diagram of the test of an experimental device based on an underwater explosion method, which is provided by the invention;
fig. 3 is a schematic structural diagram of an explosive sample positioning assembly according to the present invention.
In the figure: 1-explosive package, 2-initiation component, 3-steel wire rope, 4-explosive sample positioning component, 5-water supply component, 6-water pumping component, 7-pressure sensor, 8-hook, 9-fixing line, 10-steel pool, 11-shock absorption material, 12-steel plate layer, 13-waste large excavator tire, 14-reinforced concrete layer, 15-sand layer, 16-perforated brick partition wall, 17-thread rope, 18-first rocking handle, 19-amplifier, 20-oscilloscope, 21-first fixed pulley, 22-thread wheel, 23-second rocking handle, 24-second support frame, 25-second fixed pulley and 26-first support frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, an experimental device based on an underwater explosion method comprises a spherical explosive package 1, an initiation component 2, an explosive sample positioning component 4, a water supply component 5, a water pumping component 6, an ICP (inductively coupled plasma) underwater shock wave pressure sensor 7 and a steel pool 10, wherein the explosive sample positioning component is installed at the upper end of the steel pool 10, the spherical explosive package 1 is connected with the explosive sample positioning component, the initiation component 2 is fixedly installed with the spherical explosive package 1 (detonator initiation is adopted in the device), the ICP underwater shock wave pressure sensor 7 is installed at the bottom of the steel pool 10, the water supply component 5 is installed at the upper end of the steel pool 10, the water supply component 5 is communicated with the interior of the steel pool 10, the water pumping component 6 is installed at the upper end of the steel pool 10, and the water pumping component; the explosive sample positioning assembly comprises a first support frame 26, two groups of first fixed pulleys 21, a wire wheel 22 wound with a steel wire rope 3, a second support frame 24 and a second fixed pulley 24, wherein the first support frame 26 is arranged on two sides of the upper end of the steel pool 10, the two groups of first fixed pulleys 21 are rotatably arranged on the first support frame 26 corresponding to two sides of the first support frame 26, the two groups of first fixed pulleys 21 are in transmission connection through a wire rope 17, the bottom end of the wire rope 17 is fixedly connected with the second fixed pulley 25, one side of the upper end of the steel pool 10 is also provided with the second support frame 24, the wire wheel 22 is rotatably arranged on the upper end of the second support frame 24, the steel wire rope 3 passes through the second fixed pulley 25 to be connected with the spherical explosive package 1, the first fixed pulley 21 is in transmission connection with a; the bottom end of the steel pool 10 is provided with a groove, the ICP underwater shock wave pressure sensor 7 is fixed with the groove through a hook 8, and the ICP underwater shock wave pressure sensor 7 is connected with the hook 8 through a fixing line 9; the bottom end of the steel pool 10 is sequentially paved with a damping material 11, a steel plate layer 12, a waste large excavator tire 13 and a reinforced concrete layer 14 from top to bottom; the damping material 11 is a stone layer with the particle size of less than 10mm or polystyrene foam plastic; the outer sides of the two side walls of the steel pool 10 are filled with sand layers 15, and the middle parts of the sand layers 15 are provided with porous brick partition walls 16; the water supply component 5 and the steel tank 10 are detachably mounted, and the water pumping component 6 and the steel tank 10 are detachably mounted; the spherical explosive bag 1 is wrapped by a spherical mold, the spherical mold is made of PVC material or organic glass material or cast aluminum shell, and the diameter of the spherical mold is 40-80 mm.
Example 1 (explosion energy test):
s1: setting the explosive: firstly, 50g of explosive A is weighed and made into a spherical shape; inserting a No. 6 detonator into the center of a spherical explosive sample;
s2: mounting of the test element: an ICP type underwater shock wave pressure sensor 7 (the model is 138A05) is connected with a bottom hook 8 through a fixing line 9, the length of a thin line is controlled to be 2m, and an explosive sample and the sensor are ensured to be on the same horizontal line when floating (the specific length can be modified as required);
s3: setting of explosive samples: applying the explosive sample prepared in the step S1, and adjusting the horizontal height of the explosive sample and the horizontal distance between the explosive sample and the ICP underwater shock wave pressure sensor 7 through the explosive sample positioning component 4;
s4: water is injected, the water supply assembly 5 is opened, water is injected into the steel pool 10, and the water supply assembly 5 is moved out of the water pool after the water reaches the required water level;
s5: setting a test element to be in a working state, wherein the test element comprises an ICP (inductively coupled plasma) underwater shock wave pressure sensor 7, an amplifier 19 (or a constant current source) and an oscilloscope 20, detonating an explosive sample by using a No. 6 industrial detonator after determining that no error exists, and recording test data;
s6: and (4) carrying out subsequent treatment of the experiment, namely pumping water through the water pumping component 6 and cleaning equipment.
And (3) replacing the explosive A in the steps with an explosive B, an explosive C and the like, repeating the steps S1-S5 to obtain the pressure of the explosive shock waves of different explosives under the limited condition, and further calculating the power capacity of the test explosive sample.
Example 2:
example 2 the apparatus and method steps are the same as example 1, and the different process parameters are as follows:
the mass of the explosive is 100 g;
the length of the thin wire was controlled to be 4 m.
Example 3:
example 3 the apparatus and method steps are the same as example 1, and the different process parameters are as follows:
the mass of the explosive is 75 g;
the length of the thin wire was controlled to be 3 m.
Example 4:
example 4 the apparatus and method steps are the same as example 1, and the different process parameters are as follows:
the mass of the explosive is 65.3 g;
the length of the thin wire was controlled to 3.5 m.
Example 5:
example 5 the apparatus and method steps are the same as example 1, and the different process parameters are as follows:
the mass of the explosive is 85.2 g;
the length of the thin wire was controlled to be 2.5 m.
Calculation example:
the calculation formula of the underwater explosion energy of the explosive sample is as follows:
Et＝μ·Es+Eb{1}
in the formula: mu-shock wave loss coefficient; eS-specific shock wave energy at the survey point; eb-specific bubble energy at the measurement point;
{1} medium specific shock wave energy ESThe calculation formula is as follows:
{2} calculated formula for bubble energy:
{2} in the formula, the instantaneous value of the shock wave pressure in water is:
P(t)＝Pm·e-t/θ{4}
in the above formula: p (t) -pressure transient; pm-shock peak pressure; θ -time constant; r is the distance between the center of the medicine package and the sensor; w is TNT equivalent of explosive sample, kg; e-2.7183; rhoW-the density of the water; cW-speed of sound in water; t isb-correcting the bubble pulse period; c-intrinsic constants determined by the device;K1-constants determined by the equipment, sample size and position.
Now, only the peak shock wave pressure calculation is described: selecting 1kg of a certain explosive as a standard explosive, and assuming that the TNT equivalent value of the standard explosive is 0.74, and the distance R between the explosive sample and the sensor is, then the calculated underwater explosion pressure is as follows:
under the condition of limiting the density and the volume of the explosive package, an explosive sample to be tested is placed in the test system to be subjected to underwater explosion shock wave pressure test, and the tested peak pressure is compared with 3.46MPa to evaluate the explosion energy level of the explosive to be tested.
The theoretical calculation also needs to consider the influence of factors such as external temperature, pressure and the like, and after a plurality of tests are carried out, a representative explosive is selected as a judgment standard so as to judge whether the explosive property of the explosive reaches the standard.
In conclusion, the experimental device based on the underwater explosion method and the explosive explosion energy standardized evaluation method are as follows:
(1) the accurate and scientific test of the work doing capability of the industrial explosive is realized by means of a steel pool system;
the method ensures that various explosives including common industrial explosives are completely detonated by limiting the initial conditions of the explosive package, adopts the ICP type underwater shock wave pressure sensor to record the pressure time-course curve, accurately calculates the work capacity of various explosives, and is more accurate and scientific compared with other testing methods.
(2) Comparing and evaluating the functional level of various explosives by comparing the underwater explosion energy of different explosives;
the invention can test the underwater explosion energy level of the same explosive and the underwater explosion energy of different explosives by changing different explosive samples and limiting the initial conditions of the explosive bag, and can rapidly and scientifically compare and evaluate the work-doing capability levels of various explosives.
(3) Establishing a standardized evaluation platform of a series of explosive products;
by selecting a certain explosive with optimized process and formula as a standard, underwater explosion energy data of the primary explosive is used for judging whether the explosive work-doing capability meets the requirement or not, powerful data is provided for standardization of explosive explosion performance, and finally, a standardized evaluation platform of a series explosive product is established.
(4) The explosive development cost is reduced;
by the standard evaluation method of the underwater explosion energy of the explosive, ideas are provided for the process optimization and the formula optimization of the explosive, and the explosive development cost is reduced.
(5) The bottom end of the steel pool is sequentially provided with a bottom steel plate, a vibration damping material, a steel plate layer, a waste large excavator tire and a reinforced concrete layer from top to bottom, the outer sides of two side walls of the steel pool are filled with sand layers, and the middle part of each sand layer is provided with a perforated brick partition wall; the basic damping material is a stone layer with the grain diameter less than 10mm or polystyrene foam plastic; perforated brick partitions are arranged to reduce the environmental impact of an explosion on surrounding important buildings and personnel activity areas.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. An experimental device based on an underwater explosion method is characterized in that: the explosive sample positioning assembly is installed at the upper end of the steel pool, the spherical explosive cartridge is connected with the explosive sample positioning assembly, the detonation assembly is fixedly installed with the spherical explosive cartridge, the pressure sensor is installed at the bottom of the steel pool, the water supply assembly is installed at the upper end of the steel pool and communicated with the inside of the steel pool, the water pumping assembly is installed at the upper end of the steel pool and communicated with the bottom of the steel pool.
2. The experimental device based on the underwater explosion method as claimed in claim 1, wherein: the explosive sample positioning assembly comprises a first support frame, two groups of first fixed pulleys, a wire wheel wound with a steel wire rope, a second support and a second fixed pulley, the first support frame is arranged on two sides of the upper end of the steel pool, the two groups of first fixed pulleys correspond to two sides of the first support frame and are rotatably arranged on the first support frame, the two groups of first fixed pulleys are connected through wire rope transmission, the bottom end of the wire rope is fixedly connected with the second fixed pulley, the second support frame is further arranged on one side of the upper end of the steel pool, the wire wheel is rotatably arranged on the upper end of the second support frame, the steel wire rope penetrates through the second fixed pulley and is connected with the spherical explosive bag, the first fixed pulley is connected with a first rocking handle in a transmission manner, and the wire wheel is connected with a second rocking.
3. The experimental device based on the underwater explosion method as claimed in claim 1, wherein: the bottom end of the steel pool is fixedly connected with the pressure sensor through a fixing line.
4. The experimental device based on the underwater explosion method and the standardized evaluation method of explosive explosion energy according to claim 1 are characterized in that: and the bottom end of the steel pool is sequentially paved with a damping material, a steel plate layer, a waste tire and a reinforced concrete layer from top to bottom.
5. The experimental device based on the underwater explosion method as claimed in claim 4, wherein: the shock-absorbing material is a sheet stone layer with the particle size of less than 10mm or polystyrene foam plastic.
6. The experimental device based on the underwater explosion method as claimed in claim 1, wherein: and sand layers are filled outside the two side walls of the steel tank, and porous brick partition walls are arranged in the middle of the sand layers.
7. The experimental device based on the underwater explosion method as claimed in claim 1, wherein: the water supply assembly and the steel tank are detachably mounted, and the water pumping assembly and the steel tank are detachably mounted.
8. The experimental device based on the underwater explosion method as claimed in claim 1, wherein: the outer side of the explosive package is wrapped with a spherical mold, the spherical mold is made of PVC materials or organic glass materials or cast aluminum shells, and the diameter of the spherical mold is 40-80 mm.
9. The method for the standardized evaluation of the explosion energy of the experimental device based on the underwater explosion method according to any one of claims 1 to 8, is characterized by comprising the following steps:
s1: shaping the explosive, namely weighing a certain mass of explosive A, and making the explosive A into a spherical shape; inserting a detonator into the center of the spherical explosive sample;
s2: mounting of the test element: connecting the pressure sensor with the bottom end of the steel pool through the fixing line, and controlling the length of the fine line to enable the spherical explosive sample and the pressure sensor to be at the same horizontal height when floating;
s3: placing an explosive sample, namely applying the prepared explosive sample in the step S1, and adjusting the horizontal height of the explosive sample installation and the horizontal distance between the explosive sample installation and the pressure sensor through the explosive sample positioning assembly;
s4: water is injected, the water supply assembly is opened, water is injected into the steel pool, and the water supply assembly is moved out of the water pool after the water reaches the required water level;
s5: calculating the explosion energy value corresponding to the explosive A with a certain mass according to the value measured by the pressure sensor;
s6: performing subsequent treatment of the experiment, namely pumping water through the water pumping assembly and cleaning equipment;
s7: converting the explosive A in the step S1 into another group of explosives B to be tested, and repeating the steps S1-S6 to obtain an explosion energy value corresponding to the explosive B with a certain mass;
s8: and repeating the step S7 until all the explosives to be tested are tested, so as to obtain the explosion energy values corresponding to all the explosives to be tested under a certain mass, and drawing an explosion energy standardized evaluation table.
10. The method for the standardized evaluation of the explosion energy of the experimental device based on the underwater explosion method according to claim 9, wherein: the calculation formula of the underwater explosion energy of the explosive sample is as follows:
Et＝μ·Es+Eb{1}
in the formula: mu-shock wave loss coefficient; es-specific shock wave energy at the survey point; eb-specific bubble energy at the measurement point;
{1} medium specific shock wave energy EsThe calculation formula is as follows:
{2} calculated formula for bubble energy:
{2} in the formula, the instantaneous value of the shock wave pressure in water is:
P(t)＝Pm·e-t/θ{4}
in the above formula: p (t) -pressure transient; pm-shock peak pressure; θ -time constant; r is the distance between the center of the medicine package and the sensor; w is TNT equivalent of explosive sample, kg; e-2.7183; rhoW-the density of the water; cW-speed of sound in water; t isb-correcting the bubble pulse period; c-intrinsic constants determined by the device; k1-constants determined by the equipment, sample size and position.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557620A (en) * | 2020-11-11 | 2021-03-26 | 安徽理工大学 | Method for testing work done by explosion of electronic detonator |
| CN113532629A (en) * | 2021-06-24 | 2021-10-22 | 中国人民解放军96901部队26分队 | Ray tracing-based explosive sound source energy estimation method |
| CN115200427A (en) * | 2022-06-21 | 2022-10-18 | 西安近代化学研究所 | Method for representing energy equivalent of underwater explosion shock wave of explosive |
| CN117250109A (en) * | 2023-09-21 | 2023-12-19 | 中山大学 | Underwater explosive soil layer damage test energy gathering device, system and method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4479378A (en) * | 1982-09-23 | 1984-10-30 | The United States Of America As Represented By The Secretary Of The Navy | Method and system for determining effect of underwater explosion on submerged structures |
| CN202735332U (en) * | 2012-08-09 | 2013-02-13 | 福建省民爆化工股份有限公司 | Simple explosive property water detection device |
| CN203894221U (en) * | 2014-06-11 | 2014-10-22 | 安徽理工大学 | Device for testing underwater explosion energy of explosive |
| CN105403376A (en) * | 2015-11-19 | 2016-03-16 | 中国人民解放军理工大学 | Adapter for centrifugal machine underwater explosion test |
| CN106198621A (en) * | 2016-09-28 | 2016-12-07 | 中国科学院力学研究所 | A kind of device and method of on-the-spot Fast Evaluation Explosive Heat stability |
| CN206974594U (en) * | 2017-07-07 | 2018-02-06 | 安徽理工大学 | A kind of restraint device of new test desensitized explosive underwater explosion energy |
| CN108120816A (en) * | 2017-11-27 | 2018-06-05 | 北京理工大学 | A kind of simulation Underwater Explosion test explosive strength test method |
| CN110044736A (en) * | 2019-03-27 | 2019-07-23 | 安徽理工大学 | Different materials are evaluated to the experimental rig and method of explosion wave attenuation degree |
-
2020
- 2020-03-11 CN CN202010167558.4A patent/CN111272815A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4479378A (en) * | 1982-09-23 | 1984-10-30 | The United States Of America As Represented By The Secretary Of The Navy | Method and system for determining effect of underwater explosion on submerged structures |
| CN202735332U (en) * | 2012-08-09 | 2013-02-13 | 福建省民爆化工股份有限公司 | Simple explosive property water detection device |
| CN203894221U (en) * | 2014-06-11 | 2014-10-22 | 安徽理工大学 | Device for testing underwater explosion energy of explosive |
| CN105403376A (en) * | 2015-11-19 | 2016-03-16 | 中国人民解放军理工大学 | Adapter for centrifugal machine underwater explosion test |
| CN106198621A (en) * | 2016-09-28 | 2016-12-07 | 中国科学院力学研究所 | A kind of device and method of on-the-spot Fast Evaluation Explosive Heat stability |
| CN206974594U (en) * | 2017-07-07 | 2018-02-06 | 安徽理工大学 | A kind of restraint device of new test desensitized explosive underwater explosion energy |
| CN108120816A (en) * | 2017-11-27 | 2018-06-05 | 北京理工大学 | A kind of simulation Underwater Explosion test explosive strength test method |
| CN110044736A (en) * | 2019-03-27 | 2019-07-23 | 安徽理工大学 | Different materials are evaluated to the experimental rig and method of explosion wave attenuation degree |
Non-Patent Citations (9)
| Title |
|---|
| 万晓智等: "RDX基铝纤维炸药与铝粉炸药水下爆炸性能比较", 《振动与冲击》 * |
| 万晓智等: "RDX基铝纤维炸药与铝粉炸药水下爆炸性能比较", 《振动与冲击》, vol. 33, no. 24, 31 December 2014 (2014-12-31), pages 129 - 132 * |
| 张志刚等: "室内大尺度爆炸试验装置结构设计及分析", 《解放军理工大学学报(自然科学版)》 * |
| 张志刚等: "室内大尺度爆炸试验装置结构设计及分析", 《解放军理工大学学报(自然科学版)》, vol. 8, no. 05, 31 October 2007 (2007-10-31), pages 542 - 545 * |
| 汪泉等: "乳化炸药水下爆炸能量输出特性的实验研究", 《山东工业技术》 * |
| 汪泉等: "乳化炸药水下爆炸能量输出特性的实验研究", 《山东工业技术》, no. 23, 31 December 2016 (2016-12-31), pages 297 - 298 * |
| 盛振新等: "壳体厚度和爆炸深度对水下爆炸冲击波的影响", 火炸药学报, vol. 34, no. 3, pages 45 - 47 * |
| 陈勇;陈刚;: "壳体材料及厚度对装药水下爆炸冲击波特性影响数值研究", 水雷战与舰船防护, vol. 24, no. 01, pages 72 - 77 * |
| 项大林;荣吉利;李健;杨荣杰;: "装药壳体对含铝炸药水下爆炸性能影响研究", 振动与冲击, no. 05, pages 81 - 85 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557620A (en) * | 2020-11-11 | 2021-03-26 | 安徽理工大学 | Method for testing work done by explosion of electronic detonator |
| CN113532629A (en) * | 2021-06-24 | 2021-10-22 | 中国人民解放军96901部队26分队 | Ray tracing-based explosive sound source energy estimation method |
| CN113532629B (en) * | 2021-06-24 | 2024-04-12 | 中国人民解放军96901部队26分队 | Explosion sound source energy estimation method based on ray tracing |
| CN115200427A (en) * | 2022-06-21 | 2022-10-18 | 西安近代化学研究所 | Method for representing energy equivalent of underwater explosion shock wave of explosive |
| CN115200427B (en) * | 2022-06-21 | 2023-06-09 | 西安近代化学研究所 | Method for representing equivalent weight of impact wave energy of underwater explosion of explosive |
| CN117250109A (en) * | 2023-09-21 | 2023-12-19 | 中山大学 | Underwater explosive soil layer damage test energy gathering device, system and method |
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