Optical Fiber Cable Welded Armor Segmentation
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Solution Overview
Problem
Optical communication cables face challenges in maintaining strength and flexibility, particularly in longer lengths, due to limitations in reinforcement layer coupling methods that can lead to crack propagation and delamination during manufacturing.
Innovation Solution
The use of a reinforcement layer with a first and second portion coupled via a plurality of distinct welding locations, featuring recesses and peaks, provides an intermittent coupling that increases strength and flexibility, reducing stress-induced cracking and simplifying manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a continuous reinforcement layer is used to maintain cable strength, then the cable becomes more rigid and prone to stress-induced cracking, but reducing the reinforcement layer compromises cable strength and protection
Solution Approach 1:
The reinforcement layer is divided into discrete segments or sections along the cable length, with gaps between them. This segmentation reduces the continuous stress distribution that leads to cracking while maintaining adequate protection and strength through strategically positioned reinforcement sections.
2Reliability
If welding locations are added to couple reinforcement layer portions, then manufacturing complexity increases, but without welding the reinforcement layer lacks structural integrity
Solution Approach 1:
Instead of continuously welding the entire reinforcement layer, welding is applied only at specific discrete locations where structural coupling is most needed. This partial welding approach provides sufficient structural integrity while significantly reducing manufacturing complexity and time compared to continuous welding.
3Strength
If the reinforcement layer is made more robust to prevent cracking, then the cable loses flexibility, but a flexible reinforcement layer reduces cracking resistance
Solution Approach 1:
The segmented reinforcement layer structure allows each individual segment to remain rigid and crack-resistant, while the gaps between segments provide flexibility and stress relief. This enables the overall cable to bend and flex without causing stress concentration that would lead to cracking in continuous reinforcement structures.
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
This approach enhances the robustness and flexibility of the reinforcement layer, reducing complexity and improving manufacturing repeatability while maintaining protection for optical fibers, especially in longer cable lengths.
Implementation Method 1
forming a reinforcement layer by welding the first sheet of metal to the second sheet of metal via a periphery of a welding unit along the minor edges of the first and second sheets of metals
Data Source
AI summary
An optical communication cable and related method is provided. The cable includes a cable body and a plurality of optical transmission elements surrounded by the cable body. The cable includes a reinforcement layer surrounding the plurality of optical transmission elements and located between the cable body and the plurality of optical transmission elements. The reinforcement layer includes a first portion and a second portion coupled together and extending longitudinally away from each other.