A method for evaluating the overall simultaneity of propellant charge ignition

Abstract

The invention discloses a propellant charge ignition comprehensive simultaneity evaluation method. According to the propellant charge ignition comprehensive simultaneity evaluation method, sensor supports of fixed sensors are prepared based on the shape of a propellant chamber and charged propellant structures, the sensors are fixedly arranged on the sensor supports; one terminal of each sensor isarranged on a corresponding sensor support via welding, is introduced into the propellant chamber, is firmly contacted with the propellant chamber, and is taken as one signal line terminal, the otherlead of the sensor is fixedly connected with an insulation sealed electrode on an end cap of the propellant chamber so as to form another signal line terminal; the propellant is introduced into the propellant chamber; a pressure release fragment is selected and installed based on projectile pulling in pressure and propellant charge comprehensive ignition theoretical pressure; igniting and testingare carried out, analysis on test signals is carried out so as to realize evaluation of the ignition comprehensive simultaneity of propellant charge. The propellant charge ignition comprehensive simultaneity evaluation method is capable of solving test problems in propellant charge ignition effects (simultaneous and comprehensive effect), solving a key technical problem that no scientific effective method used for evaluation of propellant charge ignition is available, and providing feasible testing and evaluating means for propellant charge design.

Description

technical field [0001] The invention belongs to the technical field of propellants and explosives, and mainly relates to a propellant charge evaluation method. Background technique [0002] Barrel weapons are still the main equipment on the battlefield. Barrel weapons generally rely on propellant charges to provide firing kinetic energy. The design of propellant charges is used to control the energy release process of the charges, so that they can complete the shooting task under the premise of safe launch. , to meet the propellant charge and ballistic design indicators. [0003] The comprehensive simultaneous ignition of the propellant charge means that after the propellant charge receives the energy generated by the ignition system combustion, the initial burning surface of each propellant charge at each geometric point of the charge structure simultaneously reaches the ignition combustion conditions and burns simultaneously. Simultaneous ignition of the propellant charge...

AI Technical Summary

Problems solved by technology

This method has the following defects: 1) Indirect inspection of charge ignition design effect through the repeatability and consistency of barrel weapon shooting, does not really grasp whether the actual charge has reached full and simultaneous ignition; 2) For large-caliber barrel weapons, The cost of the full-bomb shooting test is relatively high; 3) The initial ignition performance test is very dangerous, and many bombing accidents have occurred

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