J-Type Underwater Vehicle Modular Hull Design
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Solution Overview
Problem
Traditional underwater vehicles face high construction costs, complex design, and operational vulnerabilities due to their expensive hull construction, limited maneuverability, and susceptibility to detection by sonar and communication disruptions.
Innovation Solution
The J-Type Underwater Vehicle employs a modular design with a symmetric rudder for both horizontal and vertical control, a retractable wireless-communications periscope system, and a Micro-second Synchronized Power Ethernet Control & Monitoring system for low-cost, fast construction, and enhanced maneuverability, while minimizing sonar detection and ensuring reliable communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional high-pressure hull design is used, then the UV can withstand deep sea pressure, but the frame becomes heavier and construction costs increase
Solution Approach 1:
The hull is divided into multiple modular sections that can be assembled together. Each module is independently manufactured and tested, then connected to form the complete pressure-resistant hull structure, reducing overall weight while maintaining strength
Solution Approach 2:
The hull uses composite materials combining lightweight metals with high-strength alloys and pressure-resistant polymers, achieving optimal balance between weight and pressure resistance capabilities
2Ease of operation
If a mechanical/optical periscope is used, then the UV can observe surface vessels and communicate, but precision parts and skilled assembly are required, increasing construction cost
Solution Approach 1:
The mechanical/optical periscope system is replaced with an acoustic-based detection system using passive sonar and hydrophones, eliminating complex mechanical components while maintaining surface observation and communication capabilities
Solution Approach 2:
Instead of using a physical periscope that requires precision mechanics, the system uses acoustic signal copying and processing to detect surface vessel positions and communicate information wirelessly
3Difficulty of detecting and measuring
If active sonar is used for navigation and detection, then the UV can detect surface vessels and surrounding UV units, but the UV exposes its position to adversary passive sonar monitoring
Solution Approach 1:
The sonar system operates in periodic pulses rather than continuously, with alternating phases of active transmission and passive listening, reducing the window of vulnerability to adversary detection while maintaining target detection capability
Solution Approach 2:
The system uses acoustic signal processing algorithms as intermediaries to interpret passive sonar returns and environmental noise, enabling target detection without active transmission that would expose the UV's position
4Reliability
If the UV surfaces to recharge battery and pressurize air storage, then air supply for engine and crew is maintained, but the UV is in a vulnerable position during combat mode
Solution Approach 1:
The UV performs air storage pressurization and battery recharging operations in advance during safe periods, building reserves that allow extended submerged operation without surfacing during combat situations
Solution Approach 2:
The system uses parameter changes in air storage capacity and battery charge levels to extend submerged operational duration, allowing the UV to maintain reliability without frequent surfacing that creates vulnerability
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 JUV design reduces construction costs, enhances maneuverability, and improves operational safety by effectively evading sonar detection and maintaining communication, enabling efficient and secure underwater operations.
Implementation Method 1
Due to its angular design, the hull of the JUV can easily reflect sonar waves away from the source and thereby avoid sonar detection
Implementation Method 2
The RWP can provide a deep sea high speed wireless communication and visual surveillance capabilities for the JUV
Data Source
AI summary
Various aspects can be implemented to provide a reconfigurable underwater vehicle. In general, one aspect of the subject matter described in this specification can be embodied in a underwater vehicle that includes a hull that is angular in shape and capable of avoiding sonar detection. The hull can include a bow and a stern that are substantially similar in shape. The underwater vehicle can also include a plurality of reconfigurable modules that are interconnected to form the hull of the underwater vehicle. Each reconfigurable module is capable of performing a different function associated with operation of the underwater vehicle. Further, the plurality of reconfigurable modules can be built in a warehouse away from a shipyard and assembled to form the underwater vehicle at the shipyard.