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A method for designing the energy of high shock wave energy explosive for underwater use

A design method and shock wave technology, applied in explosives, design optimization/simulation, calculation, etc., can solve problems such as rapid chemical reaction, obvious chemical compatibility problems, etc., and achieve the goal of improving research level, reducing research cost, and reducing test intensity. Effect

Active Publication Date: 2018-12-25
XIAN MODERN CHEM RES INST
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Problems solved by technology

[0005] Chinese patent CN 201310101503.3 discloses an underwater high-energy explosive containing ADN and its preparation method, including a binder system, simple explosives, metal powder and an oxidant, but the polyazide glycidyl ether binder used in the invention and There are obvious problems in the chemical compatibility of hexanitrohexaazaisowurtzitane and Taian and other elemental explosives in the process of coexistence with ADN oxidants, and rapid chemical reactions are prone to occur between them, causing serious consequences

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  • A method for designing the energy of high shock wave energy explosive for underwater use

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Effect test

Embodiment 1

[0024] Step 1, screening the composition of underwater explosives, the composition of designed underwater explosives is: aluminum powder / TNT / dioctyl phthalate (DOP)=15 / 79 / 6 (mass percentage ), the simplified chemical structure is C 2.805 h 2.325 N 1.044 o 2.150 al 0.556 , wherein the ratio of the moles of Al atoms to the moles of O atoms is 0.258;

[0025] Step 2, according to the composition of the underwater explosive designed in step 1, input the thermodynamics such as the theoretical density, standard molar enthalpy of formation, standard molar entropy, standard molar formation Gibbs free energy and molar heat capacity of aluminum powder, TNT and DOP Data, use the Becker-Kistiakowsky-Wilson state equation to perform thermodynamic calculations on the composition of the detonation products of the underwater explosive designed in step 1, and obtain the pressure-specific volume result curve of the detonation products under isentropic conditions, and use Levenberg-Marquardt...

Embodiment 2

[0031] Step 1, screening the composition of underwater explosives, the composition of designed underwater explosives is: aluminum powder / CL-20 / dioctyl adipate (DOA)=21 / 77 / 2 (quality percentage), the simplified chemical structure is C 1.174 h 1.282 N 2.110 o 2.131 al 0.778 , wherein the ratio of the moles of Al atoms to the moles of O atoms is 0.365;

[0032] Step 2, according to the composition of underwater explosives designed in step 1, input the theoretical density, standard molar enthalpy of formation, standard molar entropy, standard molar Gibbs free energy of formation and molar heat capacity of aluminum powder, CL-20 and DOA Wait for the thermodynamic data, use the Becker-Kistiakowsky-Wilson state equation to perform thermodynamic calculations on the detonation product composition of the underwater explosive designed in step 1, obtain the pressure-specific volume result curve of the detonation product under isentropic conditions, and use genetic optimization The al...

Embodiment 3

[0038] Step 1, screening the composition of underwater explosive, the composition of designed underwater explosive is: aluminum powder / RDX / epoxy fatty acid butyl ester (EBST)=22 / 75 / 3 (mass percentage), The simplified chemical structure is C 1.199 h 2.383 N 2.027 o 2.052 al 0.815 , wherein the ratio of the moles of Al atoms to the moles of O atoms is 0.397;

[0039] Step 2, according to the composition of the underwater explosive designed in step 1, input the thermodynamics such as the theoretical density of aluminum powder, RDX and EBST, standard molar enthalpy of formation, standard molar entropy, standard molar Gibbs free energy of formation, and molar heat capacity Data, use the Kihara-Hikita-Tanaka equation of state to perform thermodynamic calculations on the detonation product composition of the underwater explosive designed in step 1, and obtain the pressure-specific volume result curve of the detonation product under isentropic conditions, and use Levenberg-Marquar...

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Abstract

A method for designing the energy of underwater high shock wave energy explosive features that the composition of underwater explosive is changed, and the change rule of shock wave energy of underwater explosive is obtained by thermodynamic calculation and numerical simulation, from which the design of high shock wave energy explosive is optimized. The invention adopts numerical method to calculate shock wave energy of underwater explosive, which can provide beneficial technology for explosive energy design and reduce research cost.

Description

technical field [0001] The invention belongs to the field of energy design and research of underwater explosives, in particular to an energy design method for underwater explosives with high shock wave energy. Background technique [0002] The detonation release energy of explosives is the source of chemical energy for various weapons to exert their combat effectiveness. Explosives have their unique scientific laws when they explode underwater. The chemical energy released instantly by the detonation of underwater explosives causes the detonation products to strongly compress the surrounding water medium, forming a shock wave. However, due to the large acoustic impedance of the water medium, the shock wave will basically attenuate to the local sound velocity when it propagates to about ten times the charge radius. The propagation of the shock wave is accompanied by the propagation of the bubble pulsation. [0003] Torpedoes are one of the main weapons in underwater warfar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50C06B27/00
CPCC06B27/00G06F30/20
Inventor 刘瑞鹏贾宪振余然王永顺
Owner XIAN MODERN CHEM RES INST
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