RU2320948C2 - Weapon fortification emplacement - Google Patents

Abstract

FIELD: weapon fortification emplacements of troops production.

SUBSTANCE: the fortification emplacement consists of walls and a ceiling of earth bags, it has an embrasure for delivery of fire. The dead floor under the ceiling is formed by the modules of the shock wave detector located perpendicularly to the longitudinal axis of the emplacement. The modules of the shock wave detector consist of a timber frame bearing bar, slag cotton plate and a covering envelope of an acoustic transparent cloth.

EFFECT: improved conditions of the crew battle performance due to reduced level of the force action of the shock wave arising in the emplacement at fire from rocket-artillery armament.

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Description

The invention relates to the field of construction of fire fortifications.

The currently developed closed-type structures [1] limit the scope of combat use of rocket-artillery armament samples due to the high level of force impact on the calculation of shock waves generated during firing. Shock waves generated during firing, reflected inside the structure of the structure as a result of superimposing a transmitted and reflected system of shock waves, increase the pulse overpressure above the maximum permissible values. As a result of the forceful effect of shock waves on the calculation, damage to the hearing organs is possible (even when using personal hearing protection), and the conditions of its combat work are worsened.

Па·с - импульса положительной фазы импульсного избыточного давления.The proposed technical solution can significantly reduce the pulse overpressure to the level of acceptable values and thereby improve the combat conditions of the calculation of the sample RAV. The essence of the solution is as follows. An existing fortification structure consisting of walls and a ceiling made of dredging bags with soil and equipped with an embrasure for firing [1] introduces shock-wave locator modules of the type perpendicular to the longitudinal axis of the structure, consisting of a wooden frame and a supporting beam , mineral wool slab and tight-fitting shell of acoustically transparent fabric. The main purpose of the proposed technical solution is to change the characteristics of shock waves [2]: Δp _m , kPa - maximum pulse overpressure in the front of the shock wave; τ, ms - the duration of the compression phase of the pulse overpressure;

Pa · s - the pulse of the positive phase of the pulse overpressure.

The decrease in the level of impact of pulse overpressure on the calculation in the structure occurs due to the erosion of the shape of the shock wave front due to the ribbed shape of the assembled modules and the absorption of wave energy in the structure of the module. The shock wave localizer module, a general view of which is shown in FIG. 1, consists of: 1 - a wooden frame; 2 - mineral wool slab P-75 (GOST 9573-96); 3 - tight-fitting shell made of acoustically transparent fabric (rough cotton gauze); 4 - bearing beam. Modules are placed perpendicular to the longitudinal axis of the structure instead of rolling from logs, which in addition to their main purpose will reduce the time of their manufacture and erect structures in treeless terrain.

The construction with shock-wave localizers of a modular type, shown in Fig. 2, consists of: 5 - modules of a shock-wave localizer of a modular type; 6 - walls and ceiling structures from the dredging bags BZM-72 with soil; 7 - embrasure; 8 - a sample of missile and artillery weapons.

- на 18,2% для АГС-17; Δр_m - на 17,9%,

- на 1,3% для РПГ-7.During firing from the ATS-17 and RPG-7 in the construction of the existing [1] and proposed design, we measured the pulse overpressure in the system of transmitted shock waves with sensors located in the area of the shooter's head. When processing the results of the experiments, a decrease in the values of the pulse overpressure was found: Δp _m - by 24.7%,

- by 18.2% for AGS-17; Δр _m - by 17.9%,

- by 1.3% for RPG-7.

Thus, as a result of fire tests of the proposed structure by firing from samples of rocket-artillery weapons, the operability of the claimed design was confirmed.

Literature

1. An album of drawings of experimental trenches with anti-fragmentation visors for portable rocket-artillery and flamethrower incendiary weapons. Research code "Tula". Supplement No. 1. Object 1658-01-15. - M.: 1PFB MO RF, 2005. - 21 p.

2. The physics of the explosion. / Edited by L.P. Orlenko. T.1. - M .: FIZMATLIT, 2002.- 823 p.

Claims (1)

A fire fortification structure consisting of walls and ceilings from earth dredging bags with ground and equipped with an embrasure for firing, characterized in that the roll under the ceilings is formed by shock wave locator modules located perpendicular to the longitudinal axis of the structure, consisting of a wooden frame, a supporting beam, a mineral wool slab and tight shell made of acoustically transparent fabric.

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