Composite-drive two-stage projectile acceleration device and experimental platform

Abstract

The invention provides a composite-drive two-stage projectile acceleration device and an experimental platform. The acceleration device comprises a first-stage accelerator and a second-stage accelerator, wherein the first-stage accelerator comprises an electromagnetic valve connected with a high-pressure gas source, the electromagnetic valve is connected with the head end of a shell, a piston is arranged in the shell, manual valves are connected to the shell, the piston is reset by opening the lower manual valve and the upper manual valve, the second-stage accelerator comprises a second-stage accelerator frame, an acceleration pipeline, at least one sliding rail fixed to the second-stage accelerator frame and at least one motor set, the electromagnetic valve controls release of high-pressure gas and pushes the piston to accelerate, the piston pushes a projectile-shaped object to conduct first-stage acceleration to enter the acceleration pipeline of the second-stage accelerator, a motor drives a flywheel to rotate, and second-stage acceleration is conducted on the projectile-shaped object through friction. According to the device, the high-pressure gas and the motor are used as source power, the projectile-shaped body is accelerated by means of a two-stage acceleration mechanism and jetted into a water tank from the acceleration pipeline at a high speed, and a high-speed camera is arranged outside the water tank to record the test process.

Description

technical field [0001] The invention belongs to the field of projectile acceleration and explosion fragment acceleration tests, and in particular relates to a compound-driven secondary projectile acceleration device and an experiment platform. Background technique [0002] With the continuous development of underwater combat weapons, the research on underwater projectile navigation, projectile entry into water and high-speed fragments produced by underwater explosion has received great attention in related fields in various countries and has achieved considerable research. results. In experiments related to projectile entry into water and explosion fragments, light gas guns are usually used to provide initial kinetic energy for projectiles and fragments. The working principle is to use non-reactive light gas (such as compressed hydrogen or helium) as the working gas. Restricted movement, when the air pressure of the high-pressure gas storage chamber is increased to the pred...

AI Technical Summary

Problems solved by technology

However, when the projectile and fragments fly out of the muzzle, the high-pressure gas will be sprayed with it, which will affect the cavitation caused by the high-speed entry of the projectile into the water.

In addition, the barrel of the light gas gun is long and bulky, and it is difficult to move once it is installed

It is even more difficult to change the projectile body, fragment entry angle and projectile diameter required in the experiment.

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