Pressure relief shell firing gesture stabilization device for eccentric shell

Abstract

The invention discloses a pressure relief shell firing gesture stabilization device for an eccentric shell. The pressure relief shell firing gesture stabilization device consists of a fixed section and a pressure relief section, wherein the pressure relief section and the fixed section are integrally processed to be molded, the fixed section is connected with a gun barrel through bolts, the pressure relief section is uniformly provided with a plurality of perforating pressure relief holes in circumferential and axial directions, and the ratio eta of the pressure relief hole opening area to thearea of a cylinder inside the pressure relief section is 0.1-0.9. According to the pressure relief shell firing gesture stabilization device, through coordinate matching design of the pressure reliefholes and the pressure relief section length, the bottom pressure of a shell body can be reduced, the eccentric moment is eliminated when the eccentric shell is fired, and the correct targeting gesture of the shell is ensured.

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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