CN116558762A - Nuclear explosion shock wave simulation system - Google Patents

Abstract

The invention provides a nuclear explosion shock wave simulation system, which comprises: sub explosion chamber combination, main explosion chamber and diaphragm mounting section; the sub explosion chamber combination, the main explosion chamber and the diaphragm mounting section are sequentially connected from left to right; the main explosion chamber comprises a first explosion chamber, a first reducing pipe, a second explosion chamber, a second reducing pipe and a third explosion chamber which are sequentially connected from left to right; the sub explosion chamber combination comprises a plurality of sub explosion chambers which are arranged side by side up and down, and the sub explosion chamber combination is connected with a first explosion chamber of the main explosion chamber through a collecting pipe; the diaphragm mounting section is connected to the right end of the third explosion chamber. The nuclear explosion shock wave simulation system can cover the explosion wave simulation demands of various explosion sources such as explosion of most weapons, accidental explosion and the like, develop the full-factor simulation theory and platform construction of the explosion shock wave environment for the system, establish a complete explosion shock wave simulation technical system and have larger military and academic values.

Description

A Nuclear Explosion Shock Wave Simulation System

technical field

The invention relates to an explosion shock wave test technology, in particular to a nuclear explosion shock wave simulation system.

Background technique

The blast wave simulation device is a test device that uses chemical explosions to generate blast shock waves. It is a special test device used to study the dynamic response of ground and underground engineering structures under the action of blast loads. As a loading method for explosion shock wave test, the blast wave simulator has the advantages of single mechanical parameter, good repeatability, simple operation and short time course.

Existing blast wave simulators, based on technical research and equipment construction limitations, often have a single simulation target. But in fact, there are a large number of simulated targets that can produce explosive effects, and the explosive effects vary greatly. A single device cannot meet all the technical requirements. The design of the blast wave simulator involves two main aspects: energy loading mode and controlled release technology. From the aspect of usage, it can be divided into three main purposes: nuclear weapon blast shock wave simulation, conventional weapon blast shock wave simulation, and complex wave simulation. The blast wave of a nuclear weapon is characterized by a long duration of positive pressure, and the requirement for the peak value of the overpressure is not high, and the main goal pursued is the loading impulse. Conventional weapon explosion shock waves are characterized by an action time course of tens of milliseconds, but the peak overpressure is required to be several or even tens of MPa, and the pursuit index is the peak overpressure under high load. The complex wave is aimed at the complex explosion environment, and the shock wave shows the uncertainty of the peak value and time history on the time history propagation path.

The existing blast wave simulators, no matter how they are designed, can only reflect one or two indicators for the simulated loaded shock wave, which is difficult to fully satisfy. Therefore, to obtain the comprehensive laboratory simulation loading capability of blast waves, a full range of test equipment must be developed. The blast wave produced by the nuclear weapon explosion shock wave simulation device has huge energy, covering most of the explosion waves of various explosion sources such as weapon explosions and accidental explosions. Therefore, in theory, a nuclear explosion shock wave simulation system is developed. It is achievable to make it also simulate the blast wave of conventional weapons.

Contents of the invention

In view of this, the object 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 a basic means, utilizes the conditions that the current conventional explosion can directly adopt the group charge explosion, and can be realized by corresponding control means The simulation of complex waves also takes 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 requirements of most weapon explosions, accidental explosions and other explosion sources.

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

A nuclear explosion shock wave simulation system, comprising: sub-explosion chamber combination, main explosion chamber and diaphragm installation section; said sub-explosion chamber combination, main explosion chamber and diaphragm installation section are connected sequentially from left to right;

The main explosion chamber includes the first explosion chamber, the first reducing pipe, the second explosion chamber, the second reducing pipe and the third explosion chamber connected in sequence from left to right; the first explosion chamber, the second explosion chamber Both the second explosion chamber and the third explosion chamber are circular straight tubular 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 second explosion chamber The inner diameter is larger than the third explosion chamber;

The sub-explosion chamber combination includes a plurality of sub-explosion chambers arrayed up and down side by side, the sub-explosion chambers are circular straight tubular structures, and the axial direction of each sub-explosion chamber is parallel to the main explosion chamber;

The sub-explosion chamber combination is connected with the first explosion chamber of the main explosion chamber through a manifold;

The diaphragm installation section is connected to the right end of the third explosion chamber.

The diaphragm installation section is composed of the third reducing pipe, the diaphragm and the fourth reducing pipe, the left end of the third reducing pipe is connected to the third explosion chamber, and the right end is connected to the fourth reducing pipe through the diaphragm mounting flange, The right end of the fourth reducing tube is connected to the external test section; the diaphragm is located between the third reducing tube and the fourth reducing tube, and is fixedly covered on the diaphragm mounting flange.

In the sub-explosion chamber combination, multiple sub-explosion chambers are fixedly connected as a whole through the first flange.

The main explosion chamber is a high-pressure explosion chamber connected with an external air source.

The principle of the present invention: the present invention upgrades the single-caliber main explosion chamber to a three-stage partitioned explosion chamber to further improve the suture speed and stability of the shock wave in the driving section. Strong shock wave loading above the Pa level; the charging method is four-area charging. When the four areas are charged at the same time, it can meet the simulation of nuclear explosion shock waves. Single-area charging or several areas combined charging can provide a variety of explosion shock waves simulation.

Beneficial effects of the present invention: the nuclear explosion shock wave simulation system of the present invention can cover the explosion wave simulation requirements of most types of explosion sources such as weapon explosions and accidental explosions, and carry out the simulation theory and platform construction of all elements of the explosion shock wave environment for the system. Establishing a complete explosion shock wave simulation technology system has great military and academic value.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the charging position of the present invention.

Fig. 3 is a schematic perspective view of the three-dimensional structure of the sub-explosion chamber in one embodiment of the present invention.

In the figure: 11, sub-explosion chamber combination, 12, main explosion chamber, 13, diaphragm installation section, 111, sub-explosion chamber, 121, first explosion chamber, 122, second explosion chamber, 123, third explosion chamber, 1101, confluence pipe, 1201, first reducing pipe, 1202, second reducing pipe, 1203, air inlet, 131, third reducing pipe, 132, diaphragm, 133, fourth reducing pipe.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

As shown in Fig. 1-Fig. 3, a kind of nuclear explosion shock wave simulation system comprises: sub-explosion chamber combination 11, main explosion chamber 12 and diaphragm installation section 13; described sub-explosion chamber combination 11, main explosion chamber 12 and The diaphragm installation sections 13 are connected sequentially from left to right;

The main explosion chamber 12 includes the first explosion chamber 121, the first reducing pipe 1201, the second explosion chamber 122, the second reducing pipe 1202 and the third explosion chamber 123 connected in sequence from left to right; The first explosion chamber 121, the second explosion chamber 122 and the third explosion chamber 123 are all circular straight tubular structures, the first explosion chamber 121, the second explosion chamber 122 and the third explosion chamber 123 are coaxial, and the first explosion chamber The inner diameter of 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 reinforced concrete structure is fixed on the ground, while the sub-explosion chamber assembly 11 and the diaphragm installation section 13 are arranged outside the reinforced concrete structure;

The sub-explosion chamber combination 11 includes a plurality of sub-explosion chambers 111 arrayed up and down side by side, and the sub-explosion chambers 111 are circular straight tubular structures, and the axial direction of each sub-explosion chamber 111 is parallel to the main explosion chamber 12;

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

The diaphragm installation section 13 is connected to the right end of the third explosion chamber 123 .

The diaphragm installation section 13 is composed of a third diameter reducing pipe 131, a diaphragm 132 and a fourth diameter reducing pipe 133. The left end of the third diameter reducing pipe 131 is connected to the third explosion chamber 123, and the right end is connected by the diaphragm installation flange. The fourth reducing tube 133, the right end of the fourth reducing tube 133 is connected to the external test section; the diaphragm 132 is located between the third reducing tube 131 and the fourth reducing tube 133, and is fixedly covered by the diaphragm installation method Lan on.

In the sub-explosion chamber assembly 11 described above, a plurality of sub-explosion chambers 111 are fixedly connected as a whole through the first flange 112 . There are multiple first flanges 112, and each first flange 112 is a vertical plate structure, and the middle part is provided with mounting holes corresponding to the array of sub-explosion chambers, and the sub-explosion chambers 111 are penetrated in the In the mounting hole of the first flange 112, and fixedly connected with the aperture of the mounting hole, in one embodiment of the present invention, each first flange 112 bottom is connected with a steel base, and the steel base is connected to the ground , the upper part of the steel base also supports the sub-explosion chamber of the sub-explosion chamber array.

The main explosion chamber 12 is a high-pressure explosion chamber, which is connected with an external air source. Specifically, the air inlet 1203 of the main explosion chamber 12 can be arranged on any one of the first explosion chamber 121 , the second explosion chamber 122 or the third explosion chamber 123 .

Specifically, the present invention has four charging areas, as shown in Figure 2, which are respectively the first charging area 31 in the sub-explosion chamber combination, the second charging area 32 in the first explosion chamber 121, the second explosive area The third charging area 33 in the chamber 122, and the fourth charging area 34 in the third explosion chamber 123, when these four charging areas are charged at the same time, can satisfy the simulation of the nuclear explosion shock wave, single area charging or Combining charges in several areas provides a variety of explosion shock wave simulations. Therefore, the present invention can cover the explosion wave simulation requirements of most weapon explosions, accidental explosions and other explosion sources.

After a series of technology research and development, according to the test requirements of a large number of users, combined with the advanced experience of other projects such as blast wave simulation devices and high-enthalpy shock tunnels, the main means of increasing the initial energy density of the blast chamber is to increase the energy utilization rate. , designed a loading system that can simulate a long-duration nuclear explosion shock wave test. This system has great military and academic value for the system to carry out the simulation theory and platform construction of all elements of the explosion shock wave environment, and establish a complete explosion shock wave simulation technology system.

The unspecified parts of the present invention are prior art.

Claims (4)

1. A nuclear explosion shock wave simulation system, comprising: a sub explosion chamber combination (11), a main explosion chamber (12) and a diaphragm mounting section (13); the sub explosion chamber combination (11), the main explosion chamber (12) and the diaphragm mounting section (13) are sequentially connected from left to right; the method is characterized in that:

the main explosion chamber (12) comprises a first explosion chamber (121), a first reducing pipe (1201), a second explosion chamber (122), a second reducing pipe (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 in circular straight pipe structures, the first explosion chamber (121), the second explosion chamber (122) and the third explosion chamber (123) are coaxial, 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 combination (11) comprises a plurality of sub-explosion chambers (111) which are arrayed side by side up and down, the sub-explosion chambers (111) are all of circular straight pipe structures, and the axial direction of each sub-explosion chamber (111) is parallel to the main explosion chamber (12);

the sub explosion chamber combination (11) is connected with a first explosion chamber (121) of the main explosion chamber through a collecting pipe (1101);

the diaphragm mounting section (13) is connected to the right end of the third explosion chamber (123).

2. A nuclear explosion shock wave simulation system according to claim 1, wherein: the diaphragm mounting section (13) consists of a third reducer pipe (131), a diaphragm (132) and a fourth reducer pipe (133), the left end of the third reducer pipe (131) is connected with the third explosion chamber (123), the right end of the third reducer pipe is connected with the fourth reducer pipe (133) through a diaphragm mounting flange, and the right end of the fourth reducer pipe (133) is connected with an external test section; the diaphragm (132) is positioned between the third reducer pipe (131) and the fourth reducer pipe (133) and fixedly covers the diaphragm mounting flange.

3. A nuclear explosion shock wave simulation system according to claim 1, wherein: in the sub-explosion chamber combination (11), a plurality of sub-explosion chambers (111) are fixedly connected into a whole through a first flange (112).

4. A nuclear explosion shock wave simulation system according to claim 1, wherein: the main explosion chamber (12) is a high-pressure explosion chamber which is connected with an external air source.