Ammunition reaction intensity quantitative evaluation method based on reaction evolution model of combustion network

A quantitative evaluation and evolutionary model technology, applied in design optimization/simulation, special data processing applications, instruments, etc.

Active Publication Date: 2020-11-06
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0004] In view of this, the present invention provides a method for assessing the reaction intensity of ammunition based on a combustion network reaction evolution model, which can solve the problem of calculating the evolution of combustion reactio

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  • Ammunition reaction intensity quantitative evaluation method based on reaction evolution model of combustion network
  • Ammunition reaction intensity quantitative evaluation method based on reaction evolution model of combustion network
  • Ammunition reaction intensity quantitative evaluation method based on reaction evolution model of combustion network

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Embodiment Construction

[0029] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0030] The present invention provides a quantitative evaluation method for ammunition response intensity based on a combustion network reaction evolution model, mainly constructing a combustion network for strongly constrained ammunition, and establishing a constrained explosive combustion crack network reaction evolution model. The structure of the ammunition targeted by the present invention is as follows: figure 2 , where (a) is a schematic diagram of the structure of ammunition constrained by a spherical shell; (b) is a schematic diagram of the structure of ammunition constrained by a cylindrical shell.

[0031] A certain intensity of ignition occurs in the center of the charge, and at the same time a local crack is generated, and the combustion spreads in the crack. Considering that the sound velocity of explosives is of the same order as that of the...

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Abstract

The invention discloses an ammunition reaction intensity quantitative evaluation method based on a combustion network reaction evolution model and relates to the technical field of insensitive ammunition and can solve the problem of combustion reaction growth evolution calculation after accidental ignition of strong-constraint ammunition charging, and solves the problems of reaction intensity control and quantitative evaluation of ammunition under accidental stimulation of high temperature, fire and the like. The projectile charging safety evaluation method based on a combustion network reaction evolution model. Modeling is carried out on the combustion reaction growth evolution process after the strong-constraint ammunition is charged and ignited; the growth history of the internal pressure, the reactivity and the like of the projectile body close to the actual state is quantitatively given; the pressure model in the shell and the reactivity model of the charging matrix are obtained,the reaction intensity of the ammunition is finally obtained, objective description of the reaction growth evolution behavior after ammunition charging ignition is achieved, and a theoretical basis isprovided for strong-constraint insensitive ammunition design and reaction intensity control and quantitative evaluation.

Description

technical field [0001] The invention relates to the technical field of insensitive ammunition, in particular to a quantitative evaluation method for ammunition reaction intensity based on a combustion network reaction evolution model. Background technique [0002] During the whole life of ammunition, such as storage, transportation, or service, it is inevitable to encounter accidental thermal / mechanical stimuli such as drop, impact, fire, or long-term exposure to high-temperature environments, which will cause the ammunition charge to ignite and burn until it explodes or even turns to detonation. Non-shock ignition accident response with catastrophic consequences. For a typical ammunition charge, after ignition, the high-temperature product gas enters the gap between the explosive matrix and the gap between the explosive and the shell structure, and the heating of the gap explosive causes the surface of the gap wall to burn, resulting in rapid accumulation of pressure in the...

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Application Information

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IPC IPC(8): G06F30/20G06F119/14G06F119/08
CPCG06F30/20G06F2119/14G06F2119/08Y02P90/30
Inventor 段卓平白志玲黄风雷
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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