RO131810A0 - Mine-protection system for armoured vehicle - Google Patents

Abstract

The invention relates to a system for protection of a vehicle and its passengers after an explosive charge fired in the vicinity of the vehicle, which can be a wheeled or a crawler vehicle, such as an armoured conveyor for troops, a tactic vehicle, combat vehicle, logistics vehicle or a tank. According to the invention, the system comprises a perforated shield (SP) located between the mine and the armoured casing of a vehicle, at the bottom part of a chassis (SS), having the role of reducing deformation and pressure at the level of the armoured casing, a reinforced structure (SR) fixed to the chassis (SS) by means of some resilient supports (SE) for taking over the shock wave and dissipating it into the vehicle mass, as well as for adjusting the total vehicle height , and a splinter-proof plate (PA) attached to the exterior of the reinforced structure (SR).

Description

The invention relates to a solution for the protection of a vehicle and its occupants after detonating an explosive charge in the vicinity of the vehicle. Vehicles may be on wheels or track, armored carrier type for troops, tactical vehicles, fighting machines, logistics vehicles or tanks.

Detonating a mine in the vicinity of the armored vehicle causes a shock wave and leads to vibrations, overpressures and shocks inside the vehicle, structural deformations or even breaking the armored casing and entering explosion products inside the passenger compartment, these actions seriously affecting the personnel in the vehicle.

Systems for reducing the effects of explosions on armored vehicles that perform antimicrobial protection are known worldwide using in principle the following methods:

a. by using absorbent materials - application of energy-absorbing materials by plastic deformation, such as metal foams or honeycomb or sandwich structures (http://www.niras.dk/forretningsomraader/infrastrukturA/media/file s / niras -dk / infrastruktur / pdf / crushmat — a-new-technology-forprotection-against-explosions.ashx, http://www.rheinmetallchempro.com/media/editor_media/ehempro/untemehmen_/broehur e_AMAP_product_family.pdf).

b. by deflecting the shock wave - they redirect the shock wave of the explosion to the protected structure. This is a method used in today's generation V-shaped V-floor vehicles (http: //www.revaarmoredvehieles.eom/REVAcombatEcperienee.pdf, http://www.casr.ca/bg-apv-dingo .htm).

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The disadvantages of these solutions are that obtaining a high level of protection at me is obtained by substantially increasing the mass of the vehicle, and under the conditions of maintaining the ground guard by increasing the height of the vehicle and implicitly the height of the center of mass I have direct implications on the mobility of the vehicle acceleration and deceleration, longitudinal and transverse slope approach).

The aim of the invention is to achieve increased antimicrobial protection for vehicle personnel, without significantly increasing the mass of the vehicle as well as maintaining ground guard and overall height of the vehicle, by obtaining a combined effect of reducing the destructive effects of detonating the explosive charge. :

- separation of the protected area (interior) from the center of the explosion;

- disturbance of the trajectory of the shock wave;

- protecting the area of interest from the fragments caused by the explosion;

- taking the shock wave and dissipating it in the vehicle mass;

- distribution of deformations throughout the lower part of the armored box.

The problem solved by the present invention is to obtain a combined effect of reducing the destructive effects of the detonation (explosion) of an explosive charge (mine) as follows:

- the separation of the protected area (passenger compartment) from the center of the explosion, by abandoning the classic self-supporting armored box solution, specific to the classic armored carriers (in which all the elements of engine, transmission, personnel are inside) and adopting a solution with chassis in which the elements of The transmission is out of the armored box and the armored box is mounted above the chassis. The solution ensures a guard on the ground and a height of the vehicle identical to those with a low level of protection at me.

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- disturbance of the trajectory of the shock wave, by using a perforated shield, disposed on the underside of the chassis, which ensures a diminution of the effects of the explosion by breaking the shock wave front.

- protecting the area of interest from the fragments caused by the explosion, by interposing the transmission elements (distribution boxes, transmission shafts) and an absorbent shock and anti-slip plate, between the mine and the passenger compartment.

- taking over the shock wave and dissipating in the vehicle mass, by grabbing the armored chassis box by means of elastic supports that allow an adjustment of the overall height of the vehicle.

- distribution of deformations at the level of the entire lower part of the armored box by attaching transverse profiles connected to each other by longitudinal profiles within the protected area (above the main shield).

The advantages of the present invention are:

- high survival capacity in case of mine explosion;

- reduced mass of the vehicle;

- raised ground guard without increasing the height of the vehicle with implications on the carrying capacity (especially aircraft) and not least on the masking capacity in the visible area;

- high mobility in the theaters of operations.

The following are some examples of embodiments of the invention in relation to Figures 1 and 2 which represent:

Figure 1 - isometric top view of the anti-roll protection system for an armored vehicle on wheels;

Figure 2 - isometric bottom view of the wheel protection system for the armored vehicle on wheels.

The antimicrobial protection system for the armored vehicle, according to the invention, is composed of a perforated shield (SP), chassis (SS), a reinforced structure (SR), anti-skid plate (PA) and elastic supports (SE).

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The perforated shield (SP), which has the role of significantly reducing deformations and pressures (by fragmenting and deflecting the shock wave) at the armored box level, is fixed (by means of screws or other fastening systems) to the bottom of the chassis ( SS) and is made of shielding steel with an elongation relative to high rupture or from high pressure multilayer or polyethylene aramid fabric protected against high temperature action.

The reinforced structure (SR) is the lower part of the armored box and

A is fixed to the chassis (SS) by means of elastic supports (SE). Between the reinforced structure (SR) and the chassis (SS) there is a space that allows partial evacuation, laterally, of the products resulting from the mine explosion.

The reinforced structure (SR) is composed of:

Option 1:

An armored steel plate (1) over which (inside the armored box) are attached transverse profiles (2) connected together by longitudinal profiles (3). The profile of the steel plate (1), obtained by bending, allows the installation of the transmission elements (4) and redirects laterally the shock wave of the explosion, due to the inclination angle.

The ends of the transverse profiles (2) are provided with an additional reinforcement (5).

Variant 2:

An armored steel plate (1) to which is attached, on the outside, an alloy plate made of aluminum or other light metal that allows a relatively long elongation.

Variant 3:

To the outside of the reinforced structure (SR), as shown in variant 1, an aluminum or other light metal alloy plate is attached which allows a relatively long elongation.

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To the outside of the reinforced structure (SR) is attached the anti-skid plate (PA) made of multilayered aramid or high-pressure polyethylene cloth protected at high temperature.

The anti-skid plate (PA) attached to the outside of the reinforced structure (SR) between the struts (6) ensures the diminishing effects of the impact of the fragments caused by the explosion.

The chassis reinforced structure (SR) is attached by means of elastic supports (SE) which allow an adjustment of the overall height of the vehicle.

Component list:

SP - perforated shield

SS - chassis

SR - reinforced structure

PA - anti-slip plate

SE - elastic supports

- steel shield plate

- cross sections

- longitudinal profiles

- transmission elements

- reinforcement

- they stretched

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Claims (11)

1. The protection system for the armored vehicle composed of a perforated shield, chassis, reinforced structure and elastic supports, characterized in that the perforated shield (SP) is placed between the mine and the armored box of the vehicle, on the lower part of the chassis ( SS), having the role to significantly reduce the deformations and pressures (by fragmentation and failure of the shock wave) at the armored box level, the reinforced structure (SR), constituting the lower part of the armored box of the vehicle, achieving the dissipation of the deformation energy by distributing the deformations At the level of the lower part of the armored box, the reinforced structure (SR) is fixed by the chassis (SS) by means of elastic supports (SE), which allow the shock wave to be taken and the mass dissipation of the vehicle as well as adjusting the overall height of the vehicle. 2. The antimicrobial protection system for the armored vehicle according to claim 1, characterized in that the reinforced structure (SR) is made of a steel plate (1) above which (inside the armored box) cross-sections (2) are attached. connected to each other by longitudinal profiles (3). The antimicrobial protection system for the armored vehicle according to claim 1, characterized in that the reinforced structure (SR) is made of an armored steel plate (1) to which an alloy base plate is attached to the outside. aluminum or other lightweight metal that allows a relatively long elongation. 4. The armored vehicle protection system according to claims 1 and 2, characterized in that the reinforced structure (SR) also contains an aluminum or other light metal alloy plate that allows a relatively large elongation, attached below the plate. shielding steel (1). fi in> «- 2016-- 0 Β Β 7 δ 2 2 -11- 2016 5. The antimicrobial protection system for the armored vehicle according to claim 1, characterized in that the perforated shield (SP) is made of shielding steel with an elongation relative to a large break. 6. The antimicrobial protection system for the armored vehicle according to claim 1, characterized in that the perforated shield (SP) is made of multilayered aramid cloth. 7. The antimicrobial protection system for the armored vehicle according to claim 1, characterized in that the perforated shield (SP) is made of high pressure polyethylene protected by the high temperature action. 8. The protection system for the armored vehicle according to claim 1, characterized in that the anti-skid plate (PA) is attached to the outside of the reinforced structure (SR). 9. The antimicrobial protection system for the armored vehicle according to claims 1 and 8, characterized in that the anti-slip plate (PA) is made of multi-layer aramid cloth. 10. The antimicrobial protection system for the armored vehicle according to claims 1 and 8, characterized in that the anti-skid plate (PA) is made of high pressure polyethylene protected by the high temperature action. 11. The armored vehicle protection system according to claims 1 and 8, characterized in that the vehicles may be on wheels or tracks, armored carrier type for troops, tactical vehicles, fighting machines, logistic vehicles or tanks.