Multi-stage soft recovery method for high-speed test projectiles and auxiliary device thereof

Abstract

The invention belongs to the technical field of test projectile testing, relates to nondestructive recovery of test projectiles, in particular to a multi-stage soft recovery method for the high-speed test projectiles and an auxiliary device of the multi-stage soft recovery method, and solves the technical problems in the background technology. The method comprises the step that the high-speed test projectiles can be shot into a first-stage gas-liquid mixing uniform deceleration section, a second-stage liquid deceleration section and a third-stage soft solid mixture deceleration section in sequence so as to achieve the nondestructive recovery of the high-speed test projectiles. By means of the method, the nondestructive recovery of the high-speed test projectiles can be achieved, and the recovery distance is short. The auxiliary device is low in manufacturing cost, the gas-liquid mixing ratio of each section is adjusted through a bubble generator and an air pump to enable the density to be a required numerical value, the situation that the high-speed test projectiles are decelerated to be in a low-speed state capable of achieving the safe recovery after the high-speed test projectiles are shot out of the first-stage gas-liquid mixing uniform deceleration section is guaranteed, and the situation that the high-speed test projectiles are decelerated until the projectiles are motionless is further guaranteed through the second-stage liquid deceleration section and the third-stage soft solid mixture deceleration section.

Description

technical field [0001] The invention belongs to the technical field of test projectile testing and relates to the non-destructive recovery of test projectiles, in particular to a multi-stage soft recovery method for high-speed test projectiles and an auxiliary device thereof. Background technique [0002] Compared with numerical calculations and empirical formulas, experimental research is still the most important and basic research method. In the high-speed experimental research of projectiles, the high-speed moving projectiles are subjected to severe impact during the recovery process. How to ensure that the projectiles are not damaged during the recovery process and how to ensure the safe and reliable recovery of the tester installed inside the projectiles is an urgent problem that needs to be solved. It is of great importance. Significance. [0003] Currently commonly used soft recovery methods include: parachute recovery, water damping recovery, sandbox recovery, mecha...

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Problems solved by technology

[0003] Currently commonly used soft recovery methods include: parachute recovery, water damping recovery, sandbox recovery, mechanical buffer recovery, foam aluminum material recovery, gas damping recovery, dust and powder recovery, electromagnetic force recovery and other recovery methods, among which electromagnetic force recovery It is the best recycling solution in the current centralized recycling method, which is convenient for independent control of the value of recycling resistance, but requires huge investment

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