Two-Part Potted Insert for Replaceable Honeycomb Panel Fastening
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Solution Overview
Problem
Traditional potted inserts for honeycomb panels are non-adjustable, making it difficult and costly to adapt to different fastening requirements or replace damaged inserts, as the entire unit must be replaced, leading to significant rework and material costs.
Innovation Solution
A two-part adjustable potted insert system comprising an outer structural member with a threaded opening and locking recesses, and an inner structural member with a main threaded opening and secondary threaded openings, allowing for interchangeable configurations to accommodate various fastener sizes and types, and easy replacement of damaged components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional single-piece potted inserts are used, then structural integrity and simplicity are maintained, but adaptability and ease of replacement are poor
Solution Approach 1:
The potted insert is divided into two separate components: an outer structural member that remains installed in the honeycomb panel and an inner structural member that can be removed and replaced. This segmentation allows the inner member to be changed for different fastening requirements while the outer member stays in place, resolving the contradiction between adaptability and structural integrity.
Solution Approach 2:
The inner structural member is nested within the outer structural member, with the inner member fitting into a cavity of the outer member. This nesting arrangement allows the inner member to be independently replaced while maintaining the overall insert structure, enabling adaptability without compromising the embedded structure's integrity.
2Ease of repair
If traditional single-piece potted inserts are used, then manufacturing simplicity is maintained, but ease of repair and replacement are poor
Solution Approach 1:
By separating the insert into outer and inner members with different manufacturing requirements, the inner member can be designed for easy replacement while the outer member maintains the embedded structure. This segmentation enables straightforward repair procedures without requiring complex manufacturing processes for the entire assembly.
Solution Approach 2:
The inner structural member is extracted as a separate replaceable component from the outer structural member. This extraction allows the inner member to be easily removed and replaced when damaged or when engineering changes are required, significantly improving ease of repair while the outer member remains installed in the panel.
3Loss of time
If traditional single-piece potted inserts are used, then structural integrity is maintained, but rework costs and time are high
Solution Approach 1:
The segmentation of the insert into replaceable inner and permanent outer members allows rapid replacement of only the necessary component. This reduces replacement time significantly compared to removing and reinstalling the entire insert, while the outer member maintains the structural integrity of the embedded connection in the honeycomb panel.
Solution Approach 2:
The outer structural member is pre-installed and permanently secured in the honeycomb panel during initial assembly. This preliminary action ensures structural integrity is established early, while the inner member can be quickly swapped later without compromising the pre-established structural connection, reducing subsequent rework time.
Data Source
AI summary
The present disclosure relates to a two-part adjustable potted insert to be received within an insert hole of a honeycomb panel for fastening a threaded fastener thereon. The insert comprises an outer structural member which is configured to be received within the insert hole, and an inner structural member in a releasable engagement with the outer structural member. The outer structural member comprises an external main body which defines an external surface configured to resist pull-out and torque-out to retain the outer structural member in the honeycomb panel when inserted in the insert hole, a threaded opening within the external main body which defines a bottom surface, and a locking recess formed within the bottom surface.