RU204781U1 - PROTECTIVE DESIGN FOR SAFE TRANSPORTATION OF AMMUNITION - Google Patents

Abstract

The utility model relates to the field of creation and presentation of a system of practical recommendations for improving the safety of transported ammunition, allowing to increase their safe transportation in various conditions of unauthorized actions using small arms. The need to ensure the safety of transported ammunition from unauthorized actions is due to the possibility of a terrorist attack and is objectively dictated by the significance of the threat the implementation of terrorist acts and sabotage. Due to the poorly developed system of railway, water and air communications, the bulk of the supply is assigned to road transport. Automobile convoys are one of the main targets of bandit formations. They are very vulnerable to small arms fire, as well as mines placed on roads. The purpose of the utility model is to create a protective composition, the use of which leads to an increase in the safety of transported ammunition in conditions of unauthorized actions with the use of small arms. with the use of small arms leads to destabilization of the bullet and the formation of a nutation angle, the value of which is 10-20 °, depending on the mass-dimensional characteristics of the protective composition. As recommendations, the dependences of the nutation angle and the residual speed of the bullet on its geometric dimensions have been developed. The use of these dependencies will make it possible to select the geometric parameters of the protective composition that ensures the safe transportation of ammunition in each specific case, based on the tactical situation, predicting the range of an ambush, the angle of encounter, the type, type, and caliber of small arms used by the enemy.

Description

The utility model relates to the field of creation and presentation of a system of practical recommendations for improving the safety of transported ammunition, allowing to increase their safe transportation in various conditions of unauthorized actions with the use of small arms.

The need to ensure the safety of transported ammunition from unauthorized actions is due to the possibility of a terrorist attack and is objectively dictated by the significance of the threat of terrorist acts and sabotage. Due to the poorly developed system of railway, water and air communications, the bulk of the supply is assigned to road transport. Automobile convoys are one of the main targets for attacks by bandit formations. They are highly vulnerable to small arms fire as well as roadside mines.

The movement of convoys with ammunition in the area of an armed conflict should be organized taking into account the likelihood of ambushes by bandit formations along the routes of movement, their waging a mine war and possible provocations from a hostile population, which indicates the importance of scientific developments aimed at ensuring the safe transportation of ammunition by creating a reliable system their protection.

The predominant number of technical solutions in the development of armored vehicles for vehicles are aimed at protecting the elements of cars and their passengers. The known invention [5] allows you to protect the vehicle from small arms bullets, but it has a large mass, which reduces the carrying capacity of the vehicle - this factor is the main one when transporting ammunition. In the invention [6], the armor element is formed by laying on the damper a flexible metal structure made of rings and ballistic layers of aramid fabric, but this development can only be used for personal protection. The disadvantage of the technical solution [1], made of porous aluminum alloy armor panels, is that it is intended only to protect the open or tilt body of vehicles. The closest prototypes of this utility model in terms of the technical result are patents [2, 3, 4], the use of which is mainly aimed at protecting the vehicle and safe transportation of personnel and cargo. The use of these technical solutions does not allow to fully predict the safe transportation of ammunition in case of unauthorized use of small arms, depending on the tactical situation, to choose the geometric dimensions of the protective composition, the use of which will ensure the safe transportation of ammunition.

The purpose of the utility model is to create a protective composition, the use of which leads to an increase in the safety of transported ammunition in conditions of unauthorized actions with the use of small arms.

Predicting the type, type, and caliber of small arms used by the enemy will make it possible to determine the type of protective composition in which the transported ammunition will not be detonated. The application of the theory of experiment planning allowed us to minimize the number of experiments, simultaneously vary all the variables that determine the process, and choose a clear strategy that allows us to make informed decisions after each series of experiments. For the factors, the geometric dimensions of the protective composition (Fig. 1), the meeting angles and the speed of interaction were chosen. The connection diagram of the rings of the proposed protective composition is shown in Fig. 2, 3. The residual through-penetration rate and the resulting nutation angles were taken as the response function. The appearance of the elements of protective compositions having different sizes is shown in the drawing (Fig. 4, 5).

The coded and natural values of the matrix of the D-optimal Rechtshafner design for 4 factors and the research results for some points of the design are presented in Table 1. The result of the research was obtained during a computational experiment, the factors were chosen in such a way that the 4th and 11th points plan corresponded to protective compositions No. 1 and No. 2 (Fig. 6, 7), necessary for experimental studies with subsequent verification of the adequacy of the proposed model. The discrepancy between the calculated and experimental data is within acceptable limits, which generally indicates the adequacy of the proposed model.

The use of the proposed protective composition during unauthorized actions of the enemy with the use of small arms leads to destabilization of the bullet and the formation of a nutation angle, the value of which is 10-20 °, depending on the mass-dimensional characteristics of the protective composition. As recommendations, the dependences of the nutation angle and the residual velocity of the bullet on its geometric dimensions have been developed:

where Y is the response function V _rest and δ;

x _{i ... j} - factors presented in table 1;

B _{i… j} are constant regression equations.

The use of this dependence will make it possible to choose the geometric parameters of the protective composition that ensures the safe transportation of ammunition in each specific case, based on the tactical situation, predicting the range of an ambush, the angle of encounter, type, type, and caliber of small arms used by the enemy.

List of sources used:

1. Patent for utility model No. 133601. "Armor protection of an open or tilt body." Published: 20.10.2013 Bul. No. 29. Sokolov I.V., Rikhel S.G., Sevryukov I.T. and etc.

2. Patent for utility model No. 148676. "Form-building armored structure". Published: 10.12.2014 Bul. No. 34. Sokolov I.V., Sevryukov I.T., Rudakov I.A. and etc.

3. Patent for utility model No. 146250. "Flexible armor protection for transport vehicles." Published: 10.10.2014 Bul. No. 28. Sevryukov I.T., Sokolov I.V., Rudakov I.A. and etc.

4. Patent for utility model No. 146870. "Bulletproof awning". Published: 20.10.2014 Bul. No. 29. Sevryukov I.T., Sokolov I.V., Rudakov I.A. and etc.

5. Patent for invention №2196952. "A device for protecting objects in vehicles from the effects of bullets and cumulative ammunition." Published: 20.01.2003 Bul. No. 2. Blinov V.I., Bukhtoyarov V.V., Korneev A.Yu. and etc.

6. Patent for invention No. 2338994. "A method of manufacturing a universal armored barrier for protective clothing and a universal armored barrier for protective clothing." Published: 20.11.2008 Bul. No. 32. Kharchenko E.F., Aniskovich V.A., Kurmashova I.A. and etc.

Claims (3)

Protective structure for safe transportation of ammunition, consisting of interconnected steel rings, characterized in that the geometric dimensions of the rings (x1 (d) and x2 (D)), which are included in the formula:

which also takes into account the kinematic factors (x3 (Vvstr) and x4 (α)) and allows one to estimate the residual speed of through penetration (Y = Vres) and the resulting nutation angles (Y = δ), allow choosing the geometric parameters of the protective composition, which in case of unauthorized enemy actions with the use of small arms leads to destabilization of the bullet and the formation of a nutation angle, the value of which is 10-20 °, depending on the mass-dimensional characteristics of the protective composition, which ensures the safe transportation of ammunition, while the probability of damage is reduced by up to 20% due to the destabilization of the bullet after penetration in each specific case, based on the tactical situation, predicting the range of an ambush, the angle of encounter, the type, type, caliber of small arms used by the enemy.

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