Explosive formula optimization design method and system based on unified balance and medium

Abstract

The invention provides an explosive formula optimization design method and system based on unified balance and a medium, relates to the field of explosive formula design, and establishes explosive power unified balance based on a typical target, a typical target damage mode, a blasting distance and water depth through numerical simulation calculation so as to guide the optimization design of an explosive formula. The explosive formula optimization design method and system based on the unified balance and the medium have important guiding significance for more accurate and rapid explosive formula design aiming at a damaged target.

Description

Technical Field

[0001] The invention relates to the field of explosive formula design, and in particular to an explosive formula optimization design method, system and medium based on a unified criterion. Background Art

[0002] Usually, the power of underwater blasting explosives is measured by the material parameters of the explosives or the shock wave overpressure-impulse equivalence based on test data. For underwater blasting loads, there are shock wave loads with high peak overpressure and short duration, and bubble pulsation loads with low peak overpressure and long duration. At the same time, water depth and explosion distance have a great influence on the transmission process and damage effect of the above two loads, and the deformation mechanism of the damaged target under the action of underwater blasting load is complex. Therefore, a unified standard for the power of underwater blasting explosives based on the damage mode of the damaged target and taking into account the water depth factor is established to guide the optimization design of underwater blasting explosive formulas, which will help technicians better design underwater blasting explosives of different powers for damage targets at different water depths.

[0003] Therefore, determining the damage mode of typical damage targets, taking into account the factors of water depth and blasting distance, and establishing unified standards for underwater blasting explosives are technical issues that urgently need to be solved. Summary of the invention

[0004] The purpose of the present invention is to provide an explosive formulation optimization design method, system and medium based on a unified criterion, which has important guiding significance for more accurate and rapid explosive formulation design for damaging targets.

[0005] To achieve the above object, the present invention provides an explosive formulation optimization design method based on a unified criterion, comprising the following steps:

[0006] S1. Establish a numerical simulation model of underwater explosion of typical targets, establish an explosive power database based on a unified standard based on TNT explosives, conduct numerical simulation of underwater explosion of typical targets at the same explosion distance and water depth, and determine the damage mode of the typical targets. The damage mode includes two quantitative data: deformation amount when only deformation occurs and breach size when breach occurs;

[0007] S2. The damage modes of typical targets caused by the shock wave stage and the bubble pulsation stage in the underwater explosion numerical simulation are extracted respectively, and the proportions of the shock wave stage damage mode and the bubble pulsation stage damage mode in the final damage mode under the corresponding working conditions of the typical target are calculated respectively, and the contribution rates of the shock wave stage and the bubble pulsation stage damage degrees in the typical target damage mode are obtained, which are recorded as α and β. According to the power of underwater explosives, that is, the total energy released by the explosives, it is expressed as the sum of the shock wave energy and the bubble energy, then α+β=1;

[0008] S3. According to the damage mode of typical targets, the equivalent criterion surfaces of the shock wave energy contribution rate, bubble energy contribution rate and damage mode in the explosive power are established respectively:

[0009] f = (Z, α, β);

[0010] In the formula, f represents the damage mode, and Z represents the typical target;

[0011] S4. Using the explosion distance factor to correct the equivalent criterion surface;

[0012] S5. Using the water depth factor to correct the equivalent criterion surface;

[0013] S6. Numerical simulation of underwater explosion of typical targets at any explosion distance and water depth to obtain the damage pattern of typical targets;

[0014] S7. Repeat S1-S6 to establish a unified criterion surface for the power of underwater explosives for different typical surface targets and underwater targets.

[0015] Preferably, the explosive power database based on the unified standard includes

[0016] Determine the typical target to be attacked by the underwater explosive to be optimized, the explosion distance from the typical target, the combat water depth and the expected damage mode of the typical target, and use the unified standard of the explosive power database according to the explosive power;

[0017] The typical targets include different surface typical targets and underwater typical targets.

[0018] Preferably, the equivalent criterion surface is corrected using the explosion distance factor, including:

[0019] Under the same water depth, the numerical simulation of underwater explosion is carried out, and the contribution rate of shock wave stage and bubble pulsation stage is determined according to the damage mode, which is recorded as α R , β R , fitting correction curve k αR , k βR , then the equivalent criterion surface is:

[0020] f=(Z,k αR α, k βR ·β).

[0021] Preferably, the equivalent criterion surface is corrected by using the water depth factor, and the underwater explosion numerical simulation is carried out under the same explosion distance. The contribution rates of the shock wave stage and the bubble pulsation stage are determined according to the damage mode, which are recorded as α H , β H , fitting correction curve k αH , k βH , then the unified criterion surface is:

[0022] f=(Z,k αH ·k αR α, k βH ·k βR ·β).

[0023] Explosive formulation optimization design system based on unified criteria, including

[0024] Database module, used to establish numerical simulation models of underwater explosions of typical targets, and to establish a database of explosive power based on a unified standard, using TNT explosives as the basis;

[0025] The first numerical simulation module is used to perform numerical simulation of underwater explosion of typical targets at the same explosion distance and water depth to determine the damage mode of the typical targets;

[0026] The contribution rate analysis module is used to extract the damage modes of typical targets caused by the shock wave stage and the bubble pulsation stage in the underwater explosion numerical simulation, respectively, and calculate the proportion of the shock wave stage damage mode and the bubble pulsation stage damage mode in the final damage mode under the corresponding working conditions of the typical target, and obtain the contribution rate of the shock wave stage and the bubble pulsation stage damage degree in the typical target damage mode, which are recorded as α and β. According to the power of underwater explosives, that is, the total energy released by the explosives, it is expressed as the sum of shock wave energy and bubble energy, then α+β=1;

[0027] The module for establishing equivalent criterion surfaces is used to establish equivalent criterion surfaces of shock wave energy contribution rate, bubble energy contribution rate and damage mode in explosive power according to the damage mode of typical targets;

[0028] A surface correction module is used to correct the equivalent criterion surface using the explosion distance factor and the water depth factor;

[0029] The second numerical simulation module is used to numerically simulate the underwater explosion of a typical target at any explosion distance and water depth to obtain the damage mode of the typical target.

[0030] A terminal device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the steps of the method are implemented when the processor executes the computer program.

[0031] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method are implemented.

[0032] Therefore, the present invention adopts the above-mentioned method, system and medium for optimizing the design of explosive formula based on unified criteria. First, based on TNT explosives, the damage modes of different typical damage targets are established, and the equivalent criterion surface of explosive power and TNT explosive power under different blasting distance conditions is established. Then, the equivalent criterion surface is corrected using the water depth factor, and then the blasting explosive power equivalent criterion based on the damage mode of the damage target and the water depth is obtained, which guides the optimization design of the explosive formula, and has important guiding significance for more accurate and rapid design of explosive formulas for damage targets. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The present invention is a flow chart of the explosive formulation optimization design method based on unified criteria. DETAILED DESCRIPTION

[0034] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0035] Unless otherwise defined, technical or scientific terms used in the present invention shall have the common meanings understood by one having ordinary skills in the field to which the present invention belongs.

[0036] Embodiment 1

[0037] like Figure 1 As shown, the explosive formulation optimization design method based on the unified criterion includes the following steps:

[0038] S1. Establish a numerical simulation model of underwater explosion of typical targets, establish an explosive power database based on a unified standard based on TNT explosives, conduct numerical simulation of underwater explosion of typical targets at the same explosion distance and water depth, and determine the damage mode of the typical targets. The damage mode includes two quantitative data: deformation amount when only deformation occurs and breach size when breach occurs;

[0039] The explosive power database based on the unified standard includes

[0040] Determine the typical target to be attacked by the underwater explosive to be optimized, the explosion distance from the typical target, the combat water depth and the expected damage mode of the typical target, and use the unified standard of the explosive power database according to the explosive power;

[0041] The typical targets include different surface typical targets and underwater typical targets.

[0042] S2. The damage modes of typical targets caused by the shock wave stage and the bubble pulsation stage in the underwater explosion numerical simulation are extracted respectively, and the proportions of the shock wave stage damage mode and the bubble pulsation stage damage mode in the final damage mode under the corresponding working conditions of the typical target are calculated respectively, and the contribution rates of the shock wave stage and the bubble pulsation stage damage degrees in the typical target damage mode are obtained, which are recorded as α and β. According to the power of underwater explosives, that is, the total energy released by the explosives, it is expressed as the sum of the shock wave energy and the bubble energy, then α+β=1;

[0043] S3. According to the damage mode of typical targets, the equivalent criterion surfaces of the shock wave energy contribution rate, bubble energy contribution rate and damage mode in the explosive power are established respectively:

[0044] f = (Z, α, β);

[0045] In the formula, f represents the damage mode, and Z represents the typical target;

[0046] S4. Use the explosion distance factor to modify the equivalent criterion surface, including

[0047] Under the same water depth, the underwater explosion numerical simulation is carried out, and the damage contribution rate of the shock wave stage and the bubble pulsation stage is determined according to the damage mode, which is recorded as α R , β R , fitting correction curve k αR , k βR , then the equivalent criterion surface is:

[0048] f=(Z,k αR α, k βR ·β).

[0049] S5. Use the water depth factor to modify the equivalent criterion surface. Under the same explosion distance, carry out underwater explosion numerical simulation. According to the damage mode, determine the damage contribution rate of the shock wave stage and the bubble pulsation stage, denoted as α H , β H , fitting correction curve k αH , k βH , then the unified criterion surface is:

[0050] f=(Z,k αH ·k αR α, k βH ·k βR ·β).

[0051] S6. Numerical simulation of underwater explosion of typical targets at any explosion distance and water depth to obtain the damage pattern of typical targets;

[0052] S7. Repeat S1-S6 to establish a unified criterion surface for the power of underwater explosives for different typical surface targets and underwater targets.

[0053] Explosive formulation optimization design system based on unified criteria, including

[0054] Database module, used to establish numerical simulation models of underwater explosions of typical targets, and to establish a database of explosive power based on a unified standard, using TNT explosives as the basis;

[0055] The first numerical simulation module is used to perform numerical simulation of underwater explosion of typical targets at the same explosion distance and water depth to determine the damage mode of the typical targets;

[0056] The contribution rate analysis module is used to extract the damage modes of typical targets caused by the shock wave stage and the bubble pulsation stage in the underwater explosion numerical simulation, respectively, and calculate the proportion of the shock wave stage damage mode and the bubble pulsation stage damage mode in the final damage mode under the corresponding working conditions of the typical target, and obtain the contribution rate of the shock wave stage and the bubble pulsation stage damage degree in the typical target damage mode, which are recorded as α and β. According to the power of underwater explosives, that is, the total energy released by the explosives, it is expressed as the sum of shock wave energy and bubble energy, then α+β=1;

[0057] The module for establishing equivalent criterion surfaces is used to establish equivalent criterion surfaces of shock wave energy contribution rate, bubble energy contribution rate and damage mode in explosive power according to the damage mode of typical targets;

[0058] A surface correction module is used to correct the equivalent criterion surface using the explosion distance factor and the water depth factor;

[0059] The second numerical simulation module is used to numerically simulate the underwater explosion of a typical target at any explosion distance and water depth to obtain the damage mode of the typical target.

[0060] A terminal device is provided in one embodiment of the present invention. The terminal device of this embodiment includes: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps in the above-mentioned method embodiments are implemented. Alternatively, when the processor executes the computer program, the functions of the modules / units in the above-mentioned device embodiments are implemented.

[0061] The computer program may be divided into one or more modules / units, and the one or more modules / units are stored in the memory and executed by the processor to accomplish the present invention.

[0062] The terminal device may be a computing device such as a desktop computer, a notebook, a PDA, a cloud server, etc. The terminal device may include, but is not limited to, a processor and a memory.

[0063] The processor may be a central processing unit (CPU), a graphics processing unit (GPU), or other general-purpose processors.

[0064] The memory may be used to store the computer programs and / or modules, and the processor implements various functions of the terminal device by running or executing the computer programs and / or modules stored in the memory and calling the data stored in the memory.

[0065] If the module / unit integrated in the terminal device is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0066] Therefore, the present invention adopts the above-mentioned method, system and medium for optimizing the design of explosive formula based on unified criteria, which has important guiding significance for more accurate and rapid design of explosive formula for damaging targets.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. An explosive formulation optimization design method based on a unified criterion, characterized in that: The following steps are involved: S1. Establish a numerical simulation model of underwater explosion of typical targets, establish an explosive power database based on a unified standard based on TNT explosives, conduct numerical simulation of underwater explosion of typical targets at the same explosion distance and water depth, and determine the damage mode of the typical targets. The damage mode includes two quantitative data: deformation amount when only deformation occurs and breach size when breach occurs; S2. The damage modes of typical targets caused by the shock wave stage and the bubble pulsation stage in the underwater explosion numerical simulation are extracted respectively, and the proportions of the shock wave stage damage mode and the bubble pulsation stage damage mode in the final damage mode under the corresponding working conditions of the typical target are calculated respectively, and the contribution rates of the shock wave stage and the bubble pulsation stage damage degrees in the typical target damage mode are obtained, which are recorded as α and β. According to the power of underwater explosives, that is, the total energy released by the explosives, it is expressed as the sum of the shock wave energy and the bubble energy, then α+β=1; S3. According to the damage mode of typical targets, the equivalent criterion surfaces of the shock wave energy contribution rate, bubble energy contribution rate and damage mode in the explosive power are established respectively: f = (Z, α, β); In the formula, f represents the damage mode, and Z represents the typical target; S4. Using the explosion distance factor to correct the equivalent criterion surface; S5. Using the water depth factor to correct the equivalent criterion surface; S6. Numerical simulation of underwater explosion of typical targets at any explosion distance and water depth to obtain the damage pattern of typical targets; S7. Repeat S1-S6 to establish a unified criterion surface for the power of underwater explosives for different typical surface targets and underwater targets.

2. The method for optimizing explosive formulation design based on unified criteria according to claim 1, characterized in that: The explosive power database based on the unified standard includes Determine the typical target to be attacked by the underwater explosive to be optimized, the explosion distance from the typical target, the combat water depth and the expected damage mode of the typical target, and use the unified standard of the explosive power database according to the explosive power; The typical targets include different surface typical targets and underwater typical targets.

3. The explosive formulation optimization design method based on unified criteria according to claim 1, characterized in that: The equivalent criterion surface is corrected using the explosion distance factor, including Under the same water depth, numerical simulation of underwater explosion is carried out, and the damage contribution rate of shock wave stage and bubble pulsation stage is determined according to the damage mode, which is recorded as α R , β R , fitting correction curve k αR , k βR , then the equivalent criterion surface is: f=(Z,k αR ·a,k βR ·b).

4. The method for optimizing explosive formulation design based on unified criteria according to claim 1, characterized in that: The equivalent criterion surface is corrected by using the water depth factor. Under the same explosion distance, the underwater explosion numerical simulation is carried out. According to the damage mode, the damage contribution rate of the shock wave stage and the bubble pulsation stage is determined respectively, which is recorded as α H , β H , fitting correction curve k αH , k βH , then the unified criterion surface is: f=(Z,k αH ·k αR ·α,k βH ·k βR ·β)。 5. The explosive formulation optimization design system based on unified criteria is characterized by: It includes a database module for establishing a numerical simulation model of underwater explosions of typical targets and establishing a database of explosive power based on a unified standard based on TNT explosives; The first numerical simulation module is used to perform numerical simulation of underwater explosion of typical targets at the same explosion distance and water depth to determine the damage mode of the typical targets; The contribution rate analysis module is used to extract the damage modes of typical targets caused by the shock wave stage and the bubble pulsation stage in the underwater explosion numerical simulation, respectively, and calculate the proportion of the shock wave stage damage mode and the bubble pulsation stage damage mode in the final damage mode under the corresponding working conditions of the typical target, and obtain the contribution rate of the shock wave stage and the bubble pulsation stage damage degree in the typical target damage mode, which are recorded as α and β. According to the power of underwater explosives, that is, the total energy released by the explosives, it is expressed as the sum of shock wave energy and bubble energy, then α+β=1; The module for establishing equivalent criterion surfaces is used to establish equivalent criterion surfaces of shock wave energy contribution rate, bubble energy contribution rate and damage mode in explosive power according to the damage mode of typical targets; A surface correction module is used to correct the equivalent criterion surface using the explosion distance factor and the water depth factor; The second numerical simulation module is used to numerically simulate the underwater explosion of a typical target at any explosion distance and water depth to obtain the damage mode of the typical target.

6. A terminal device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

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