An underwater high-speed projectile configuration device based on electromagnetic coil ejection

By designing an underwater high-speed projectile configuration device including a sabot, an armature, a base support, a supporting iron sheet, a tail and a warhead, and utilizing supercavitation projectiles to reduce drag during their navigation in water, the problem that underwater high-speed projectiles cannot achieve high initial velocity and long-distance navigation is solved, and high initial velocity and long-distance navigation of underwater electromagnetic launch are achieved.

CN118896524BActive Publication Date: 2025-10-03NANJING UNIV OF SCI & TECH
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Patent Information

Application Number
CN202411037902.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-10-03
Estimated Expiration
2044-07-31

AI Technical Summary

Technical Problem

The existing underwater high-speed projectile configuration design cannot meet the requirements of electromagnetic launch, especially in the launch of underwater sub-caliber supercavitating projectiles, which cannot achieve high initial velocity and long-distance navigation.

Method used

Using sub-caliber launch technology, an underwater high-speed projectile configuration device is designed, which includes a sabot, an armature, a base support, a supporting iron sheet, a tail and a warhead. The supercavitation projectile is used to reduce drag during navigation in the water, and is accelerated by an electromagnetic coil to achieve high initial velocity launch underwater.

Benefits of technology

It achieves high initial velocity and long-distance navigation of underwater electromagnetic launch, has a simple and reliable structure, meets the complex electromagnetic field environment requirements of the interior ballistic acceleration stage, and greatly reduces the viscous resistance of the projectile during the underwater navigation stage.

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Abstract

The present invention discloses an underwater high-speed projectile configuration device based on electromagnetic coil ejection, comprising a sabot, an armature, a base support, a supporting iron sheet, a tail, and a warhead, to address the technical issues of underwater electromagnetic coil launch testing. The present invention utilizes sub-caliber launch technology, with a supercavitating projectile consisting of a tungsten warhead and an aluminum tail threaded together as the sub-caliber core, secured within the electromagnetic projectile by a nylon sabot and a base support. The electromagnetic projectile shell is formed by a nylon sabot and an aluminum armature threaded together, with an outer diameter matching the inner diameter of the launcher. The base support, mounted at the bottom of the armature, also serves to accelerate the sub-caliber core. The underwater high-speed projectile configuration of the present invention not only meets the launch requirements of underwater multi-stage electromagnetic induction coil guns, but also achieves supercavitating drag reduction during the projectile's navigation process in the water, thereby increasing the initial velocity and range of underwater launches.
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