Self-Melting Robotic Thread for Hard-to-Reach Crack Repair
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Solution Overview
Problem
Existing methods for repairing structural defects in complex structures, such as buildings and bridges, face challenges in accessing remote locations and efficiently applying filler materials, especially when conventional transportation methods are difficult or costly.
Innovation Solution
A self-heating and self-melting robotic thread system that uses a guidance system to locate and deploy filler material to defect areas, which can melt and flow into cracks, providing a cost-effective and accessible repair solution for hard-to-reach spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional transportation methods are used to deliver filler material to remote locations, then the repair can be performed with simple equipment, but the cost and difficulty of accessing remote locations increases significantly
Solution Approach 1:
The patent replaces conventional mechanical transportation systems with a magnetic field-based guidance system. The robotic thread is guided through complex structures using magnetic fields generated by external magnets, eliminating the need for physical transportation of filler material to remote locations. This substitution resolves the contradiction by making remote access feasible without incurring high transportation costs.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the operator and the robotic thread. External magnets generate magnetic fields that guide the robotic thread through the structure, acting as a mediator that enables remote operation without direct physical access. This intermediary system resolves the accessibility versus transportation cost contradiction.
2Reliability
If filler material is applied around the crack area using 3D printing, then the defect can be corrected, but the complexity and cost of equipment increases
Solution Approach 1:
The patent extracts the filler material application function from complex 3D printing equipment and integrates it into a simple robotic thread. The robotic thread contains filler material within its structure and can be directly inserted into cracks, eliminating the need for external 3D printing machinery. This extraction resolves the contradiction by maintaining defect correction effectiveness while dramatically reducing equipment complexity.
Solution Approach 2:
The patent embeds filler material within the robotic thread structure itself. The thread is nested with filler material that can be extruded or deposited directly at the defect location, eliminating the need for separate material delivery systems. This nesting approach resolves the reliability versus device complexity contradiction.
3Adaptability or versatility
If a robotic thread system is deployed to traverse complex structures, then accessibility to hard-to-reach spaces is improved, but the device complexity increases
Solution Approach 1:
The patent gives different parts of the robotic thread different properties: the outer layer is flexible for navigation, while the core contains filler material for repair. This local differentiation allows the thread to adapt to complex structures without requiring a completely complex system design. The magnetic guidance capability is localized to specific segments, reducing overall system complexity while maintaining versatility.
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
Enables efficient and cost-effective repair of structural defects in remote or hard-to-reach locations by using a self-heating and self-melting robotic thread that can traverse complex structures, filling cracks with melted filler material, thereby restoring structural integrity.
Implementation Method 1
uses self-heating and self-melting robotic thread
Implementation Method 2
filler material begins to melt via heat (e.g., self-heat using short-circuit, external heat from a laser/heating source, etc.). The filler material, in a melted and pliable state, can flow into the defect area.
Data Source
AI summary
Embodiments of the present invention provides an approach for repairing defects in a structure, located in difficult to reach area, by using a self-guiding and self-melting robotic thread. The approach can use an external guidance system to find the target location of the structure and deploy a robotic thread to the defective area. Portion of the robotic thread contains a filler material can have similar materials to the structure. After the system has determined the size, length and volume of the repair, the system calculates the required length of the robotic thread and guides the thread to the defective area. Once the robotic thread is in place, the filler material begins to melt via heat. The filler material, in a melted and pliable state, can flow into the defect area. Once cooled, the filler material can now support the structure.