Supercavitating Cargo Round Programmable Electronic Payload
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Solution Overview
Problem
Conventional underwater projectiles are limited by high drag in water, restricting their speed to about 80 km/h, and existing supercavitating rounds lack programmable electronic payloads for tactical flexibility and safety features.
Innovation Solution
A non-self-propelled, supercavitating cargo round (SCR) with a programmable electronic payload and energetic material, designed to achieve high speeds by creating a vaporous cavity, allowing for delayed triggering and enhanced tactical capabilities, while maintaining structural integrity to penetrate thick targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional underwater projectiles are used, then the projectile can travel through water, but the speed is limited to about 80 km/h due to high drag
Solution Approach 1:
The patent utilizes the phase transition of water from liquid to vapor to create a cavitation bubble around the projectile. This vapor cavity acts as a low-density medium that dramatically reduces drag forces, enabling the projectile to achieve speeds exceeding 100 mph (approximately 160 km/h), more than doubling the conventional speed limit.
2Speed
If supercavitation is used to achieve high speeds, then drag is reduced, but the projectile lacks programmable electronic payloads for tactical flexibility
Solution Approach 1:
The patent merges the supercavitating projectile design with integrated electronic payload systems, including programmable microcontrollers, sensors, and communication modules. This combination enables the projectile to maintain high speeds through supercavitation while simultaneously providing tactical flexibility through programmable functions such as delayed detonation, target recognition, and adaptive mission parameters.
3Adaptability or versatility
If supercavitating rounds with energetic material are used, then tactical capabilities are enhanced, but the risk of unexploded ordnance increases
Solution Approach 1:
The patent incorporates programmable electronic delay mechanisms and pre-flight diagnostic systems that verify the proper functioning of all detonation components before mission execution. The programmable nature allows for precise timing control and multiple safety checks, ensuring reliable detonation and minimizing the risk of unexploded ordnance while maintaining enhanced tactical capabilities.
4Speed
If a blunt nose is used to create supercavitation, then a vaporous cavity is formed, but the primary drag source is the ramming force on the blunt tip
Solution Approach 1:
The patent optimizes the blunt tip geometry parameters, including radius of curvature, length-to-diameter ratio, and surface finish, to minimize ram drag while maintaining effective cavitation bubble formation. By carefully adjusting these geometric parameters, the design achieves a balance where the blunt tip generates sufficient vapor cavity to protect the projectile body while minimizing the drag force concentrated on the tip.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The SCR achieves significantly higher speeds and tactical flexibility by reducing drag through supercavitation, enabling precise and safe detonation of underwater mines, and can be programmed for specific mission requirements, reducing the risk of unexploded ordnance and improving operational effectiveness.
Implementation Method 1
This phenomenon can occur when a projectile having a blunt nose and a streamlined, hydrodynamic, and aerodynamic body travels at sufficiently high speeds under water. The blunt nose pushes aside water as the projectile advances. When the hydrodynamic pressure of water that is pushed aside overcomes the ambient static pressure, the water evacuates a cavity, and some of the water evaporates into the vacuum of the cavity.
Implementation Method 2
When the hydrodynamic pressure of water that is pushed aside overcomes the ambient static pressure, the water evacuates a cavity, and some of the water evaporates into the vacuum of the cavity.
Data Source
AI summary
A supercavitating cargo round comprises an energetic payload and an electronic payload. The electronic payload includes programmable circuitry suitable for implementing a digital delay of arbitrary length. The supercavitating cargo round is programmable while in a barrel or loader of a weapon.