NECESSARY CONDITIONS TO ENSURE THE STRENGTH OF INDIVIDUAL PARTS OF THE MOTION RESTRAINT MADE OF POLYAMIDE

The authors propose a design scheme of a device for throwing a net with a single-use polyamide bell with a propelling cartridge in it with an electric primer-igniter. The necessary conditions are considered that ensure sufficient strength of the bell barrel when fired. For the manufacture of individual parts of the device and the bell body, it is proposed to use polyamide with sufficiently high strength characteristics and insignificant weight in comparison with metal. It is taken into account that when fired, the bell barrel and other parts of the device will experience significant deformation under the action of the maximum pressure of powder gases. The strength of individual parts of the device is calculated. Acceptable calculated values of the strength characteristics of parts made of polyamide are obtained and a conclusion is made on the possibility of using the selected material.