A Bullet-Stock Separation System Based on Momentum Theorem

Abstract

The invention discloses a projectile holder separating system based on the momentum theorem and relates to projectile holder separating systems. When an existing integral projectile holder is separated from a projectile by means of air resistance or a muzzle check ring, a long flying distance is needed for separating the projectile holder from a projectile body, and the track of the projectile body is seriously affected by the projectile holder; meanwhile, due to the fact that the projectile holder enters water at the same time along with the projectile body, the water surface splashing shape and the cavitation shape which are formed after the projectile enters water are directly disturbed; in addition, the shooting quality of the image showing the process that the projectile enters water by an operator is reduced due to the disturbance of the projectile holder, and consequentially data provided by the image are not accurate. According to the projectile holder separating system based on the momentum theorem, a buffer spacer is arranged between an accelerating projectile holder body and a blocking projectile holder body and tightly attached to the blocking projectile holder body, and the accelerating projectile holder body is a rotating body; a projectile storage cavity is formed in the accelerating projectile holder body; the projectile is placed in the projectile storage cavity, and the head of the projectile faces a muzzle; a projectile passing hole is machined in the blocking projectile holder body in the length direction of the blocking projectile holder body; a recovery cover is located outside a gun barrel and faces the muzzle of the gun barrel. The projectile holder separating system based on the momentum theorem is used for supercavitation projectile experiments.

Description

technical field [0001] The invention specifically relates to a flick-to-stock separation system based on the momentum theorem. Background technique [0002] After a supercavitating projectile with a special shape is launched into water, the pressure of the flow field near the surface of the projectile moving at high speed decreases rapidly. When the pressure is lower than the saturated vapor pressure of water in the experiment, the water in the surface area of ​​the supercavitating projectile will Vaporization occurs, forming cavities. When the projectile velocity is high enough, the formed cavity that completely wraps itself is called a supercavitation. Supercavitating projectiles rely on the isolation of cavitation to greatly reduce the viscous resistance of the projectile in water, thereby significantly increasing the effective range of the projectile and the energy when hitting the target. The supercavitation projectile experiment is one of the important technical mean...

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Problems solved by technology

[0005] The present invention solves the problem that when the existing integrated bullet rest relies on air resistance or the muzzle retaining ring to realize the separation of the bullet rest and the projectile, the separation of the bullet rest and the projectile body requires a long flight distance, and the bullet rest has a great influence on the trajectory of the projectile body. At the same time, because the bullet rest enters the water together with the projectile, it directly interferes with the shape of the water surface splash and the shape of the cavity formed after the projectile enters the water, and because of the interference of the bullet rest, the operator’s shooting quality of the projectile’s entry into the water is reduced, resulting in a poor image quality. The problem of inaccurate data

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