METHOD FOR COMPREHENSIVE TESTING OF AXIALLY-SYMMETRICAL HIGH-EXPLOSIVE FRAGMENTATION AMMUNITION WITH AXIALLY-SYMMETRICAL FRAGMENT FIELD Russian patent published in 2024 - IPC F42B35/00 

FIELD: testing high-explosive fragmentation ammunition.

SUBSTANCE: method for complex testing of axisymmetric high-explosive fragmentation ammunition with an axisymmetric field of dispersion of fragments includes detonation of ammunition installed in the centre of a profiled target wall, marked into zones corresponding to the directions of dispersion of fragments in the adopted coordinate system, recording hits, catching and counting fragments falling into each zone, measurement of the size and area of holes, assessment of the quantitative characteristics of the fragmentation field in terms of masses, velocities, shapes and sizes of fragments by registering, recording and processing signals from electret sensors located in the corresponding zones of the target wall and equal in size. The profiled target wall is made circular. The ammunition is installed so that its longitudinal axis coincides with the longitudinal axis of the target wall. The space between the ammunition and the target wall is divided into sectors by introducing an additional coordinate system, the longitudinal axis of which divides the profiled target wall into two equal parts and passes through the longitudinal axis of the ammunition parallel to the surface of the earth. The transverse axis of the coordinate system divides the target wall into two equal parts, passes through the longitudinal axis of the ammunition and is perpendicular to the longitudinal axis of the additional coordinate system. On the surface of the ground, along the axes of the introduced coordinate system, at a distance exceeding 20 given radii of the explosive charge of the ammunition, lines of pressure sensors connected to pressure meters are installed. After the ammunition is detonated, the values of excess pressure in the shock wave are recorded by distances and directions using lines of pressure sensors and pressure meters, and the shock wave pressure values are transmitted to the computer. The computer determines the excess pressure at the front and the shock wave impulse by distance and direction. The high-explosive action indicator is determined and the distribution of ammunition fragments by mass, angle, and velocity in sectors is formed. Indicators characterizing the fragmentation effect of ammunition are formed by sector and the result of the impact of the damaging factors of ammunition on vital compartments and elements of typical targets is determined using the method of mathematical modelling. The contours of projections of simulators of vital compartments and elements of typical targets are applied to the front surface of the target wall zones in each sector and their coordinates are determined in the accepted coordinate system. In place of the target wall, simulators of vital compartments and target elements with the necessary measuring equipment are installed in sectors. The ammunition is installed so that its longitudinal axis coincides with the longitudinal axis of the simulators of vital compartments and elements of standard targets, and the ammunition is detonated. The results of the impact of the damaging factors of ammunition on simulators of vital compartments and target elements are assessed and the test results are correlated with the results of mathematical modelling.

EFFECT: increasing the information content of the test results of ammunition with an axisymmetric field of dispersion of fragments.

1 cl, 1 dwg