Projectile charge compression environment simulation test device

Abstract

The invention discloses a projectile charge compression environment simulation test device, including a cap, a positioning ring, a projectile and a base. The projectile is a cylinder structure with a central through hole; the positioning ring sleeves on one end of the projectile, and is fixed on the projectile by a positioning screw; the other end of the projectile is provided with an external threads, and is connected with the base through the thread; sensors, a sample and simulation ammunition are successively arranged in the projectile cavity, the simulation ammunition is closely installed on both sides in the sample; the projectile, the positioning ring and a cap stepped hole are arranged coaxially. The invention has advantages of real simulation of projectile charge compression environment, simple structure, repeatable utilization, low cost and small labor intensity.

Description

technical field [0001] The invention belongs to the technical field of propellant and explosive laboratory test devices, and relates to a compression environment simulation test device, in particular to an test device for simulating the compression environment of projectile charging service process. Background technique [0002] The explosive charge is subjected to inertial shock compression during launch and penetration, and the response of the explosive is firstly a dynamic response, which in turn affects its detonation properties and detonation performance. Therefore, how to evaluate the explosive charge under a certain shock compression condition The mechanical response and reaction situation have become one of the key issues concerned by the weapon development department. [0003] At present, the methods for evaluating the impact resistance of explosive charges at home and abroad mainly include live ammunition shooting tests and laboratory simulation experiments. The f...

AI Technical Summary

Problems solved by technology

Although the structure of this sample bomb can quantitatively evaluate the impact resistance of explosive charges, there is a big difference between the charge structure of this kind of experimental sample bomb and the charge structure of the real projectile. deformation, so the explosive charge is not subject to direct compression

Secondly, in this method, the sensor is installed outside the sample bomb and does not directly contact the sample. The signal recorded by the sensor is the stress curve after passing through a variety of different impedance materials, which cannot truly reflect the mechanical response characteristics of the explosive specimen.

Thirdly, due to the close contact between the piston and the sleeve, the piston expands radially after impact loading, making it difficult to separate the entire system, so it cannot be reused

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