Measuring apparatus for capability of explosive explosion in driving of metal

Abstract

The invention discloses a measuring apparatus for capability of explosive explosion in driving of metal. The measuring apparatus is mainly composed of an explosion chamber, a metal flyer plate, velocity measurement targets, velocity measurement target supports, etc. The measuring apparatus is designed on the basis of velocity measuring principles; the explosion chamber composed of a charging sleeve and an explosion protection body is filled with a to-be-measured explosive column, the metal flyer plate is adhered on the end surface of the explosive column aligned with the charging sleeve and the explosion protection body, the explosive is fired from the other end surface of the explosive column so as to accelerate motion of the metal flyer plate, a time interval recorder is employed to acquire time when the metal flyer plate generates pulse current when passing through the velocity measurement targets at different distances, the relation curve of the distance and time of motion of the metal flyer plate is acquired through data processing, and first derivation is carried out on the curve so as to obtain the speed of the metal flyer plate at different times or distances so as to measure capacity of explosive explosion in accelerating metal.

Description

technical field [0001] The invention belongs to the technical field of explosion performance evaluation of propellants and explosives, and relates to a measuring device for the explosion acceleration metal ability of explosives. Background technique [0002] The acceleration ability of explosive explosion to metal is the basis to guide the formulation design of general-purpose blasting explosives and metal-accelerated explosives, and it is also a key parameter that must be clarified in the design of fragmentation warheads and the estimation of damage performance. The energy of the acceleration effect of the explosive explosion on the metal is mainly provided by the detonation wave pressure formed during the detonation of the explosive and the expansion of the detonation product. In order to improve the acceleration ability of explosive explosion on metal, the most important technical approach is to add a certain amount of metal fuel to the explosive formula to form a mixed e...

AI Technical Summary

Problems solved by technology

[0003] At present, the cylinder test system is mainly used to measure and evaluate the acceleration ability of explosive explosion on metal. Due to the following shortcomings, this test system cannot be widely used, and it cannot be applied in the research stage of explosive formula to guide the development of explosive formula. optimized design

First, the test system is very complicated, mainly composed of high-speed camera, synchronous light source, film processing device, film digital interpretation device, etc., so the cost of building a cylinder test system is very high; second, the cylinder test has a large amount of medicine and a long cycle , in the stage of explosive formulation design, due to the large number of formulations and the small amount of each formulation, it is impossible to complete the screening and optimal design of the formulation in a short period of time through the cylinder test

In view of the above two deficiencies, it has been impossible to accurately measure and evaluate the influence of different explosive formulations and different components and states in the formulation on the metal acceleration ability in the stage of explosive formulation design. The design and scientific application of explosive formula have brought great difficulties

Images