Simple small projectile launcher enabling projectile to obliquely enter water at medium and low speeds

Abstract

The invention discloses a simple small projectile launcher enabling a projectile to obliquely enter water at medium and low speeds. The simple small projectile launcher comprises a guide rail, a spring, the projectile, strings, a fixing device and a baffle. The guide rail comprises a hollow cylinder part located on the front section and provided with double holes and a half hollow cylinder part located on the rear section, the spring is put in the hollow cylinder part on the front section, the upper half portion of the hollow cylinder on the rear section is hollowed out, and the lower half portion of the hollow cylinder on the rear section serves as a projectile movement rail. The strings are bound on the baffle and penetrate out of the small holes in the front end of the guide rail, the spring is put between the baffle and the guide rail, the fixing device is used for pressing the projectile on the guide rail, and the tail of the projectile makes contact with the baffle. The simple small projectile launcher has the beneficial effects that the device is simple, the operation is easy, disassembly is easy and convenient, speed variables can be controlled, and the cost is low.

Description

technical field [0001] The invention relates to the technology of oblique entry of projectiles into water at medium and low speeds, in particular to a simple launching device for small projectiles obliquely entering water at medium and low speeds. Background technique [0002] Entering the water at medium and low speeds will produce air-entry cavitation. Water-entry cavitation is a physical phenomenon accompanying the process of projectile entering water. The formation, expansion, closure, and collapse of cavitation will affect the motion characteristics and hydrodynamic characteristics of projectiles entering water. The study of complex cavitation flow is the basis for the design of air-dropped torpedoes, water-entry missiles, and supercavitating projectiles. [0003] In order to study the evolution process of the cavitation and the ballistic characteristics of the projectile during the oblique entry into the water at low and medium speeds, in the experiment of oblique ent...

AI Technical Summary

Problems solved by technology

The device has a small adjustment range of the projectile entering the water speed, which cannot guarantee the experimental effect

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