Modular Maritime Tow Body with 3D Printed Payloads

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Solution Overview

Problem

Traditional tow bodies are often designed for specific payloads and missions, limiting their versatility and hydrodynamic efficiency, and their fabrication methods are costly, inefficient, and slow, making them less effective for maritime applications.

Innovation Solution

A modular tow body system comprising interchangeable nose, tail, and payload modules made using three-dimensional printing, allowing for quick production of complex geometries with lightweight materials, and enabling easy reconfiguration for various payloads and missions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a tow body is designed and fabricated to carry a specific payload for a specific mission, then the hydrodynamic characteristics can be optimized for that specific use, but the ability to carry other payloads or perform other missions is severely limited

Engineering Contradiction:
Improvehydrodynamic characteristicsVSAvoidpayload interchangeability
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The tow body is divided into modular sections including a nose section, payload section, and tail section that can be independently manufactured and then assembled. The nose section and tail section are standardized components that can be reused with different payload sections, enabling both hydrodynamic optimization for each component and versatility through reconfiguration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The standardized nose section and tail section serve multiple functions across different mission configurations. These universal components can be paired with various payload sections to create different tow body configurations, allowing the same hydrodynamically-optimized components to serve multiple missions while maintaining optimal performance.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If a tow body is designed to be large enough to carry several payloads, then it can carry a variety of payloads, but it becomes oversized when carrying only one payload and thus is not as hydrodynamic as a smaller tow body

Engineering Contradiction:
Improvepayload capacityVSAvoidhydrodynamic efficiency
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The tow body is segmented into standardized nose and tail sections plus interchangeable payload sections. This segmentation allows the system to be configured in different lengths by selecting appropriate numbers and sizes of payload sections, enabling hydrodynamic optimization for each specific mission requirement while maintaining the ability to carry various payloads.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The tow body configuration is made dynamic and adjustable rather than fixed. Different payload sections can be attached to the standardized end sections to create optimal configurations for different missions, allowing the hydrodynamic characteristics to be matched to the specific payload and mission requirements rather than being oversized for all scenarios.

Inventive Principle:
Principle #15Dynamics

3Strength

If traditional fabrication methods are used for tow bodies, then structural integrity can be ensured, but production costs are high, production time is long, and reconfiguration is difficult

Engineering Contradiction:
Improvestructural integrityVSAvoidproduction efficiency
Core Design Contradiction:
StrengthVSProductivity

Solution Approach 1:

The fabrication method transitions from traditional subtractive or mold-based manufacturing to additive manufacturing (3D printing). This parameter change in the manufacturing process enables complex geometries to be produced with less material waste, lower costs, and shorter production times while maintaining structural integrity through optimized lattice structures and material deposition patterns.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The tow body components are manufactured as separate modular sections using 3D printing technology. This segmentation allows each component to be independently optimized and manufactured efficiently, then assembled into complete configurations. The additive manufacturing process specifically benefits from this segmentation by enabling complex internal structures and geometries that would be difficult or expensive to produce with traditional methods.

Inventive Principle:
Principle #1Segmentation

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 modular system reduces production costs and time, improves hydrodynamic performance by using lightweight materials, and allows for efficient deployment and reconfiguration of payloads, enhancing the versatility and efficiency of tow bodies for maritime applications.

Implementation Method 1

making a nose module, a tail module, and a first payload module of plastic by three-dimensional printing

Methodology Applied
Scientific Effect3D Printing: 3D Printing

Implementation Method 2

The tail module comprises fins for stabilizing the tow body as the tow body is towed through the water

Methodology Applied
Scientific EffectHydrodynamic stabilization:

Data Source

PatentUS10279879B2Modular maritime tow body
Publication Date: 2019.05.07 THE BOEING CO
  • US10279879B2 patent drawing
  • US10279879B2 patent drawing
  • US10279879B2 patent drawing

AI summary

A tow body apparatus, a method of making a modular tow body, and a method of using a tow body. The tow body comprises a nose module, a tail module, and a first payload module that may be made of plastic by three-dimensional printing. The nose module is configured to be connected to a tow cable for towing the tow body through water and comprises a nose module mating interface. The tail module comprises fins for stabilizing the tow body as the tow body is towed through water and a tail module mating interface. The first payload module comprises an interior configured to hold a payload, a first mating interface configured to be attached alternatively to the nose module mating interface or to a second payload module, and a second mating interface configured to be attached alternatively to the tail module mating interface or to the second payload module.