A pressure-relieving shooting attitude stabilization device for eccentric projectiles

Abstract

The invention discloses a pressure-relief type shooting attitude stabilizing device for eccentric shells. The stabilizing device is composed of a fixed section and a pressure-releasing section. Through bolt connection, the pressure relief section is evenly arranged with several through pressure relief holes in the circumferential and axial directions, and the ratio η of the opening area of ​​the pressure relief holes to the inner cylinder area of ​​the pressure relief section is 0.1-0.9. The stabilizing device designed through the coordination and matching of the length of the pressure relief hole and the pressure relief section can reduce the pressure at the bottom of the projectile body, thereby eliminating the eccentric moment when the eccentric projectile is fired, and ensuring the correct target posture of the projectile.

Description

technical field [0001] The invention relates to the technical field of projectile firing tests, in particular to a pressure-relieving shooting attitude stabilization device for eccentric projectiles. Background technique [0002] At present, with the development of missile technology, non-rotationally symmetrical shaped missile structures have emerged. As the damage element of the missile to the target - the warhead, there are also non-rotationally symmetrical special-shaped features in the design. This feature brings about the problem of "eccentricity" of the center of mass of the warhead. [0003] In the research process of the warhead, artillery platforms such as artillery and balanced guns are often used to carry out research on the target penetration performance of test bombs. The principle is that the high-pressure gas produced by the propellant works on the test bomb in the gun bore, so that the test bomb can fly to the target at a predetermined speed. [0004] For...

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Problems solved by technology

[0004] For the eccentric test projectile, when the projectile is launched by the artillery system, there is still the effect of gas when the test ejects from the muzzle, and its eccentricity will cause the gas to push the work process to produce a deflection moment. This additional moment will cause the projectile attitude to change. And make the projectile hit the target at a large angle of attack, which seriously threatens the integrity of the projectile structure and leads to the failure of the test

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