Filament Termination Compression for Controlled Potting Wicking
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Solution Overview
Problem
The variability in wicking characteristics of liquid potting compound in tensile strength members with synthetic filaments leads to inconsistent mechanical properties in terminations, making it difficult to achieve repeatable and controlled wicking, which is essential for enhancing the termination's mechanical properties.
Innovation Solution
The solution involves laterally supporting the filaments in the transition area between the potted and unpotted regions to minimize bending stresses and utilize the natural wicking phenomenon by controlling the compression of filaments through the geometry of the anchor's internal passage or a separate compression sleeve, ensuring that mostly tensile stress is applied, thereby reducing tensile stress risers and promoting consistent wicking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid potting compound is applied to synthetic filaments in the transition area, then wicking occurs which reduces tensile stress risers, but the wicking characteristics are variable and inconsistent
Solution Approach 1:
The patent changes the physical parameters of the filaments by applying compression forces through a compression sleeve or anchor passage geometry. This compression reduces the void space between filaments and controls the capillary action, making wicking characteristics consistent and repeatable. The compression parameter is adjusted to achieve desired wicking control without compromising filament strength.
Solution Approach 2:
The patent introduces a compression sleeve as an intermediary component between the filaments and the anchor. This sleeve mediates the compression force applied to the filaments, ensuring uniform compression and consistent wicking characteristics. The compression sleeve acts as a controllable intermediary that regulates the interaction between liquid potting compound and filaments.
2Strength
If filaments are laterally supported in the transition area, then bending stresses are minimized and mostly tensile stress is applied, but the device complexity increases
Solution Approach 1:
The anchor passage is designed to serve multiple functions: it provides lateral support to filaments in the transition area, applies compression to control wicking, and guides the liquid potting compound. By making the anchor passage multi-functional, the patent avoids adding separate components, thus minimizing device complexity while achieving the desired strength improvement.
Solution Approach 2:
The patent combines the lateral support function and compression function into a single integrated anchor structure. The anchor passage simultaneously provides lateral confinement and axial compression to the filaments, merging multiple functions into one component. This integration reduces overall device complexity while maintaining termination strength.
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 mechanical properties of the termination by reducing tensile stress risers and preventing lateral bending stresses, resulting in a more consistent and repeatable wicking phenomenon that improves the overall strength and reliability of the termination.
Implementation Method 1
wicking is more precisely referred to as capillary flow. It occurs when the adhesive intermolecular forces between a liquid and the bounding material containing the liquid are stronger than the cohesive intermolecular forces holding the liquid together
Data Source
AI summary
A termination system which improves the consistency and repeatability of the wicking of the liquid potting compound in the transition area between the potted and the imported filaments. The termination system controllably compresses the filaments within the transition area to produce repeatable wicking. The potting compound selected and the degree of compression employed combine to produce a desired wicking effect.