METHOD OF TESTING AXISYMMETRIC HIGH-EXPLOSIVE FRAGMENTATION INCENDIARY AMMUNITION Russian patent published in 2024 - IPC F42B35/00 

FIELD: ammunition.

SUBSTANCE: invention relates to testing of axisymmetric high-explosive fragmentation incendiary ammunition. Method of testing axially symmetric high-explosive fragmentation incendiary ammunition includes blasting ammunition installed in a given position in the centre of a profiled circular target wall marked into zones corresponding to directions of fragments dispersion in the accepted system of coordinates, registration of hits, catching and counting the number of fragments falling into each zone, measuring the size and area of the holes, recording and subsequent processing of signals from electret sensors placed on the corresponding zones of the target wall and equal to them in size, evaluation of quantitative characteristics of the fragmentation field by mass, velocity, shape and size of fragments. Ammunition is installed so that its longitudinal axis coincides with the longitudinal axis of the shaped target wall. Additional coordinate system is introduced, the longitudinal axis of which passes through the initiated base unit and the longitudinal axis of the ammunition parallel to the earth's surface, and the transverse axis of the coordinate system passes through the longitudinal axis of the ammunition and is perpendicular to the longitudinal axis of the introduced coordinate system. On the surface of the earth, as well as along the axes of the introduced coordinate system, at a distance greater than 20 reduced radii of the explosive charge and limited by the radius of the shaped target wall, installing the lines of pressure sensors connected to the self-contained meters, fixing the lines of the pressure sensors and the independent meters of the magnitude of the excess pressure in the shock wave by distances and directions, transmitting the obtained values of the overpressure of the shock wave to the remote computer, determining the values of the velocity of the front of the shock wave, the excess pressure at the front and the pulse of the shock wave by distances and directions, the shape of the shock-wave field created in the environment by the test ammunition is recorded in time. In addition, temperature sensors installed on the ground surface are installed in parallel to pressure sensors, pressure and temperature sensors installed at the same distance from ammunition detonation point are combined into sensor units. Autonomous pressure and temperature meters connected via radio channel with remote computer are used as autonomous meters. Pressure and temperature transducers and autonomous pressure and temperature meters record changes in pressure and temperature values at preset points in space after arrival of the shock wave front in time by distances and directions. Obtained values are transmitted to the remote computer, the ambient temperature values are additionally determined on the remote computer after the arrival of the shock wave by distances and directions, thermal pulse, speed of thermal field movement by distances and directions is determined, shape of thermal field created in environment by tested ammunition is fixed in time.

EFFECT: improving information value of the axisymmetric high-explosive fragmentation incendiary ammunition test method due to determination in the course of tests of parameters characterizing its incendiary action.

1 cl, 3 dwg