Experimental investigation of impact of injury measures on the protection screens of combat armoured vehicles

Abstract

In order to evaluate the relative properties of the protective screen to the striking energy of the means of defeat, an experimental study was conducted, which allowed to test the hypothesis regarding the protection of the combat armoured vehicles against the means of defeat which, under the action of kinetic energy, destroy the armoured obstacle. Based on the data obtained during the experimental study, a mathematical model was constructed that describes the punching momentum of the protective screen. The use of this model makes it possible to calculate the energy losses caused by deformation and destruction of the obstacle. Built as a result of the multifactor experiment, the regularity of the impact of the means of defeat on the protective screen takes into account the speed of the means of defeat, the angle of encounter of the means of defeat with the protective screen, the thickness of the front and back layer and the hardness of the means of defeat.

Numerical research of flame propagation conditions in narrow channels using the technology of thermal impulse treatment of turbine blades

“…Thus, the results of numerical simulation show that the preheating of the turbine blades of GTE with cooling channels can provide conditions for their thermal pulse cleaning. Further studies of this process should be carried out experimentally, according to the methodology that is determined in the studies [15,16]. Based on the numerical study of combustion process with heat exchange with the walls of the channel, it has been shown that for the dimensions of the channel characteristic of the cooling channels of turbine blades of GTE, thermo impulse cleaning is possible when the temperature of parts is from 500°C to 700°C, which is significantly below the operating temperature of the methods used at the present stage for this purpose.…”

Mathematical model of the impact of 12.7 mm kinetic action ammunition on an armored obstacle with additional armor

“…Based on this analysis, a variant of classification of such devices is proposed and attention is focused on the need to study the experience of their use. An in-depth study of this problem is reflected in the study [10], in which an experimental study was conducted to assess the relative properties of the protective screen to the damaging energy of the munitions, which allowed to test the hypothesis put forward regarding the use of several layers of materials in protective screens to protect armored vehicles from munitions that destroy the armored barrier under the action of kinetic energy. Based on the experimental data obtained, a mathematical model was built that describes the pulse of penetration of the proposed armored barrier.…”

“…In the study of such a system on the basis of a deterministic approach, when the mechanism of all phenomena is investigated, the process theory is used, on the basis of which the system is given by a strictly deterministic model, usually in the form of differential equations. [10].…”

“…It should also be noted that the experimental study of the stability of the armor barrier was conducted on the ballistic track of the research and testing laboratory of weapons and special protective materials. At the same time, a ballistic pendulum was used and the conditions of the experimental study were observed, which are defined in [10].…”

Методичний Підхід Для Формулювання Вимог До Системи Відновлення Озброєння Та Військової Техніки

“…В роботі [2] розглянуто методичний апарат оцінювання оперативно-тактичних вимог до системи відновлення та визначення їх відповідності вимогам більш вищого рівня ієрархії із застосуванням теорії складних систем. В роботах [3][4][5]…”