A nuclear explosion shock wave simulation system

Abstract

The present invention proposes a nuclear explosion shock wave simulation system, comprising: a sub-chamber assembly, a main explosion chamber, and a diaphragm mounting section; the sub-chamber assembly, main explosion chamber, and diaphragm mounting section are connected in sequence from left to right; the main explosion chamber comprises a first explosion chamber, a first reducer, a second explosion chamber, a second reducer, and a third explosion chamber, which are connected in sequence from left to right; the sub-chamber assembly comprises a plurality of sub-chambers arranged side by side in an upper and lower array, the sub-chamber assembly being connected to the first explosion chamber of the main explosion chamber via a manifold; the diaphragm mounting section is connected to the right end of the third explosion chamber. The nuclear explosion shock wave simulation system of the present invention can meet the blast wave simulation requirements of most types of explosion sources, such as weapon explosions and accidental explosions. It develops a full-factor simulation theory and platform for the explosion shock wave environment, establishing a complete explosion shock wave simulation technology system, and has great military and academic value.

Description

Technical Field

[0001] The invention relates to explosion shock wave testing technology, in particular to a nuclear explosion shock wave simulation system. Background Art

[0002] The blast wave simulator, a test device that uses chemical explosions to generate shock waves, is a specialized test device used to study the dynamic response of surface and underground engineering structures to explosive loads. As a loading method for blast wave tests, the blast wave simulator offers advantages such as a single mechanical parameter, good repeatability, simple operation, and a short test time.

[0003] Existing blast wave simulators often have a single simulation target due to limitations in technical research and equipment construction. However, in reality, the number of simulated targets that can produce explosive effects is vast, and the effects vary greatly, making a single device unable to meet all technical requirements. The design of blast wave simulators involves two key aspects: energy loading method and controlled release technology. Based on their intended use, they can be categorized into three main applications: nuclear weapon blast wave simulation, conventional weapon blast wave simulation, and complex wave simulation. Nuclear weapon blast waves are characterized by long positive pressure durations, with low requirements for peak overpressure. The primary objective is to achieve the desired impulse. Conventional weapon blast waves are characterized by durations of tens of milliseconds, but with higher peak overpressure requirements of several or even tens of megapascals. The goal is to achieve high peak overpressure under load. Complex waves are targeted at complex explosion environments, where the shock wave exhibits peak and temporal uncertainty along its propagation path.

[0004] Existing blast wave simulators, regardless of their design, can only reflect one or two indicators of the simulated shock wave, making it difficult to fully meet these requirements. Therefore, achieving comprehensive laboratory simulation capabilities for blast wave loading requires the development of a full range of test equipment. However, the blast waves generated by nuclear weapon blast wave simulators possess enormous energy, encompassing the vast majority of blast waves from weapon detonations, accidental explosions, and other sources. Therefore, theoretically, it is possible to develop a nuclear blast wave simulation system that also simulates conventional weapon blast waves. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a nuclear explosion shock wave simulation system, which takes the simulation of nuclear weapon explosion shock waves as the basic means, utilizes the current conventional explosion to directly adopt the conditions of group charge explosion, and can realize the simulation of complex waves through corresponding control means, while taking into account the simulation of conventional weapon explosion shock waves. Therefore, the nuclear explosion shock wave simulation system of the present invention can cover the explosion wave simulation needs of various explosion sources such as the vast majority of weapon explosions and accidental explosions.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A nuclear explosion shock wave simulation system includes: a sub-explosion chamber assembly, a main explosion chamber, and a diaphragm installation section; the sub-explosion chamber assembly, the main explosion chamber, and the diaphragm installation section are connected in sequence from left to right;

[0008] The main explosion chamber includes a first explosion chamber, a first reducing tube, a second explosion chamber, a second reducing tube and a third explosion chamber connected in sequence from left to right; the first explosion chamber, the second explosion chamber and the third explosion chamber are all circular straight tube structures, the first explosion chamber, the second explosion chamber and the third explosion chamber are coaxial, and the inner diameter of the first explosion chamber is larger than that of the second explosion chamber, and the inner diameter of the second explosion chamber is larger than that of the third explosion chamber;

[0009] The sub-explosion chamber combination includes a plurality of sub-explosion chambers arranged side by side in an upper and lower array, each of the sub-explosion chambers is a circular straight tubular structure, and the axis direction of each sub-explosion chamber is parallel to the main explosion chamber;

[0010] The sub-explosive chamber combination is connected to the first blasting chamber of the main blasting chamber through a manifold; the manifold is a tubular structure with a closed steel plate at the right end, and an array of through holes corresponding to the sub-explosive chamber combination is provided on the closed steel plate. The right ends of the multiple sub-explosive chambers are respectively connected to the corresponding through holes, and each sub-explosive chamber is welded to the closed steel plate of the manifold;

[0011] The diaphragm mounting section is connected to the right end of the third explosion chamber;

[0012] The sub-explosion chamber combination has a first charging area, the first explosion chamber has a second charging area, the second explosion chamber has a third charging area, and the third explosion chamber has a fourth charging area. The four charging areas can be charged at the same time to meet the simulation of nuclear explosion shock waves. Single area charging or Less than three Regional combined charges provide multiple explosion shock wave simulations.

[0013] The diaphragm mounting section consists of a third reducer, a diaphragm and a fourth reducer. The left end of the third reducer is connected to the third explosion chamber, and the right end is connected to the fourth reducer through a diaphragm mounting flange. The right end of the fourth reducer is connected to the external test section. The diaphragm is located between the third reducer and the fourth reducer and is fixedly covered on the diaphragm mounting flange.

[0014] In the sub-explosion chamber combination, the multiple sub-explosion chambers are fixedly connected into one body via the first flange.

[0015] The main explosion chamber is a high-pressure explosion chamber, which is connected to an external gas source.

[0016] The principle of the present invention is as follows: the present invention upgrades the single-caliber main explosion chamber into a three-section partitioned explosion chamber, further improving the stitching speed and stability of the driving section shock wave. At the same time, the segmented area can serve as a high-pressure test section, efficiently completing the strong shock wave loading above the MPa level; the loading method is four-area loading. When the four areas are loaded at the same time, the simulation of the nuclear explosion shock wave can be met. Single-area loading or combined loading of several areas can provide multiple explosion shock wave simulations.

[0017] The beneficial effects of the present invention are as follows: the nuclear explosion shock wave simulation system of the present invention can cover the explosion wave simulation requirements of various explosion sources such as most weapon explosions and accidental explosions, carry out full-factor simulation theory and platform construction of the explosion shock wave environment for the system, establish a complete explosion shock wave simulation technology system, and has great military and academic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 Schematic diagram of the charging area in the present invention.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the sub-explosion chamber in one embodiment of the present invention.

[0021] In the figure: 11, sub-blasting chamber assembly, 12, main blasting chamber, 13, diaphragm installation section, 111, sub-blasting chamber, 121, first blasting chamber, 122, second blasting chamber, 123, third blasting chamber, 1101, conduit, 1201, first reducer, 1202, second reducer, 1203, air inlet, 131, third reducer, 132, diaphragm, 133, fourth reducer. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0023] like Figure 1-Figure 3 As shown, a nuclear explosion shock wave simulation system includes: a sub-explosion chamber assembly 11, a main explosion chamber 12 and a diaphragm mounting section 13; the sub-explosion chamber assembly 11, the main explosion chamber 12 and the diaphragm mounting section 13 are connected in sequence from left to right;

[0024] The main blasting chamber 12 includes a first blasting chamber 121, a first reducing pipe 1201, a second blasting chamber 122, a second reducing pipe 1202 and a third blasting chamber 123 connected in sequence from left to right; the first blasting chamber 121, the second blasting chamber 122 and the third blasting chamber 123 are all circular straight tubular structures, the first blasting chamber 121, the second blasting chamber 122 and the third blasting chamber 123 are coaxial, and the inner diameter of the first blasting chamber 121 is larger than that of the second blasting chamber 122, and the inner diameter of the second blasting chamber 122 is larger than that of the third blasting chamber 123; in one embodiment of the present invention, the main blasting chamber 12 is covered with a reinforced concrete structure and fixed to the ground by the reinforced concrete structure, while the sub-blasting chamber assembly 11 and the diaphragm mounting section 13 are arranged outside the reinforced concrete structure;

[0025] The sub-explosion chamber assembly 11 includes a plurality of sub-explosion chambers 111 arranged side by side in an upper and lower array. The sub-explosion chambers 111 are all circular straight tubular structures, and the axis direction of each sub-explosion chamber 111 is parallel to the main explosion chamber 12;

[0026] The sub-blasting chamber combination 11 is connected to the first blasting chamber 121 of the main blasting chamber through a manifold 1101; specifically, the manifold 1101 is a tubular structure with a closed steel plate at the right end, and an array of through holes corresponding to the sub-blasting chamber combination 11 is provided on the closed steel plate. The right ends of multiple sub-blasting chambers 111 are respectively connected to the corresponding through holes, and each sub-blasting chamber 111 is welded to the closed steel plate of the manifold 1101.

[0027] The diaphragm mounting section 13 is connected to the right end of the third explosion chamber 123 .

[0028] The diaphragm mounting section 13 is composed of a third reducer 131, a diaphragm 132 and a fourth reducer 133. The left end of the third reducer 131 is connected to the third explosion chamber 123, and the right end is connected to the fourth reducer 133 through a diaphragm mounting flange. The right end of the fourth reducer 133 is connected to the external test section; the diaphragm 132 is located between the third reducer 131 and the fourth reducer 133, and is fixedly covered on the diaphragm mounting flange.

[0029] In the described sub-chamber assembly 11, multiple sub-chambers 111 are fixedly connected together by a first flange 112. There are multiple first flanges 112, each of which is a vertical plate-like structure with a mounting hole corresponding to the sub-chamber array. The sub-chambers 111 are inserted into the mounting holes of the first flanges 112 and fixedly connected to the openings of the mounting holes. In one embodiment of the present invention, the lower portion of each first flange 112 is connected to a steel base, which is connected to the ground. The upper portion of the steel base also supports the lower sub-chamber of the sub-chamber array.

[0030] The main explosion chamber 12 is a high-pressure explosion chamber connected to an external gas source. Specifically, the air inlet 1203 of the main explosion chamber 12 can be set on any of the first explosion chamber 121, the second explosion chamber 122 or the third explosion chamber 123.

[0031] Specifically, the present invention has four charging areas, such as Figure 2 As shown, they are respectively the first charging area 31 in the sub-chamber combination 11, the second charging area 32 in the first blasting chamber 121, the third charging area 33 in the second blasting chamber 122, and the fourth charging area 34 in the third blasting chamber 123. When these four charging areas are loaded at the same time, the simulation of the nuclear explosion shock wave can be satisfied. Single-area charging or combined charging of several areas can provide multiple explosion shock wave simulations. Therefore, the present invention can cover the explosion wave simulation needs of various explosion sources such as most weapon explosions and accidental explosions.

[0032] This invention has undergone a series of technical research and development. Based on the test needs of a large number of users and combined with the advanced experience of other explosion wave simulation devices and high-enthalpy shock wave wind tunnel projects, it uses increasing the initial energy density of the explosion chamber as the main means and improving energy utilization as the principle to design a loading system that can simulate long-lasting nuclear explosion shock wave tests. This system systematically carries out the full-factor simulation theory and platform construction of the explosion shock wave environment, establishes a complete explosion shock wave simulation technology system, and has great military and academic value.

[0033] The parts not described in detail in this invention are prior art.

Claims

1. A nuclear explosion shock wave simulation system, comprising: A sub-blasting chamber assembly (11), a main blasting chamber (12) and a diaphragm mounting section (13); the sub-blasting chamber assembly (11), the main blasting chamber (12) and the diaphragm mounting section (13) are connected in sequence from left to right; and the invention is characterized in that: The main explosion chamber (12) comprises a first explosion chamber (121), a first reducing tube (1201), a second explosion chamber (122), a second reducing tube (1202) and a third explosion chamber (123) which are sequentially connected from left to right; the first explosion chamber (121), the second explosion chamber (122) and the third explosion chamber (123) are all circular straight tube structures, the first explosion chamber (121), the second explosion chamber (122) and the third explosion chamber (123) are coaxial, and the inner diameter of the first explosion chamber (121) is larger than that of the second explosion chamber (122), and the inner diameter of the second explosion chamber (122) is larger than that of the third explosion chamber (123); The sub-explosion chamber assembly (11) comprises a plurality of sub-explosion chambers (111) arranged in an array side by side in an upper and lower direction. The sub-explosion chambers (111) are all circular straight tubular structures, and the axial direction of each sub-explosion chamber (111) is parallel to the main explosion chamber (12). The sub-explosive chamber assembly (11) is connected to the first blasting chamber (121) of the main blasting chamber (12) through a confluence pipe (1101); the confluence pipe (1101) is a tubular structure with a closed steel plate at the right end, and the closed steel plate is provided with an array of through holes corresponding to the sub-explosive chamber assembly (11), and the right ends of the plurality of sub-explosive chambers (111) are respectively connected to the corresponding through holes, and each sub-explosive chamber (111) is welded to the closed steel plate of the confluence pipe (1101); The diaphragm mounting section (13) is connected to the right end of the third explosion chamber (123); The sub-explosion chamber combination (11) has a first charge area (31), the first explosion chamber (121) has a second charge area (32), the second explosion chamber (122) has a third charge area (33), and the third explosion chamber (123) has a fourth charge area (34). The four charge areas can be charged simultaneously to meet the simulation of nuclear explosion shock waves. Single-area charging or combined charging of three or less areas can provide multiple explosion shock wave simulations.

2. A nuclear explosion shock wave simulation system according to claim 1, characterized in that: The diaphragm mounting section (13) is composed of a third reducer (131), a diaphragm (132) and a fourth reducer (133). The left end of the third reducer (131) is connected to the third explosion chamber (123), and the right end is connected to the fourth reducer (133) through the diaphragm mounting flange. The right end of the fourth reducer (133) is connected to the external test section. The diaphragm (132) is located between the third reducer (131) and the fourth reducer (133) and is fixedly covered on the diaphragm mounting flange.

3. A nuclear explosion shock wave simulation system according to claim 1, characterized in that: In the sub-explosion chamber assembly (11), a plurality of sub-explosion chambers (111) are fixedly connected as one body via a first flange (112).

4. A nuclear explosion shock wave simulation system according to claim 1, characterized in that: The main explosion chamber (12) is a high-pressure explosion chamber, which is connected to an external gas source.

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