Flanged Panel Insert Carrier for High Pullout Strength

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Solution Overview

Problem

Conventional panel inserts in spacecraft and satellite buses are prone to pullout failures, leading to costly repairs or replacements, and limit design flexibility due to their destructive removal and low load capacity, necessitating excessive use and increased weight, which complicates design changes and manufacturing.

Innovation Solution

The introduction of panel insert carriers with flanged ends and standardized thread patterns allows for universal mounting of various panel inserts, enhancing pull-out resistance and enabling repeated removal and insertion to accommodate changing design requirements, supporting multiple types and sizes of fasteners and components without panel redesign.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional panel inserts are used for mounting components to panels, then mounting capability is provided, but pullout failure occurs frequently leading to panel destruction and costly repairs

Engineering Contradiction:
Improvemounting reliabilityVSAvoidpanel repair difficulty
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The system divides the mounting function into two separate components: a reusable carrier that remains permanently installed in the panel, and removable panel inserts that can be extracted and replaced. This segmentation prevents damage to the panel and carrier when inserts are removed or replaced, eliminating the need for costly panel repairs while maintaining reliable mounting capability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The carrier acts as an intermediary component between the panel and the panel inserts. It provides a standardized interface that accepts various inserts while protecting the panel from damage during insert installation and removal. The carrier's internal threading and structural design distribute loads to prevent panel material failure, thereby improving reliability without compromising repairability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If conventional panel inserts are used to accommodate design changes, then mounting is provided, but design flexibility is limited due to destructive removal requirements

Engineering Contradiction:
Improvedesign flexibilityVSAvoidpanel manufacturing complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The system enables dynamic reconfiguration of panel mountings by allowing inserts to be easily removed and replaced without damaging the carrier or panel. Design changes can be accommodated by simply swapping inserts rather than removing and reinstalling entire panel assemblies, providing adaptability while maintaining manufacturing simplicity through standardized carrier designs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The carrier is designed with universal compatibility to accept multiple types and sizes of panel inserts through a standardized interface. This multi-functionality allows a single carrier design to support various mounting configurations and design changes, enhancing adaptability without requiring custom-manufactured carriers for each application.

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

3Reliability

If more panel inserts are used to mitigate pullout failure, then reliability is improved, but weight and cost increase

Engineering Contradiction:
Improvemounting reliabilityVSAvoidpanel assembly weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The solution extracts the weak link (the panel insert-material interface) from the load path by introducing a carrier that remains permanently installed in the panel. The carrier's flanged ends and internal structure distribute mounting loads across a larger area of the panel, preventing pullout failure without requiring multiple inserts. This reduces the total number of inserts needed, thereby reducing weight while maintaining or improving reliability.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS12071971B2Carrier for mounting of panel inserts
Publication Date: 2024.08.27 LOCKHEED MARTIN CORP
  • US12071971B2 patent drawing
  • US12071971B2 patent drawing
  • US12071971B2 patent drawing

AI summary

Provided herein are various enhancements for panel inserts which can provide for mounting of threaded fasteners or other mounting members into various panels. In one example, a panel insert carrier comprises a barrel having flanged ends. The barrel comprising an axial bore therein having a threaded surface configured to removably accept a threaded insert. At least one of the flanged ends comprises an aperture for injection of potting around an exterior of the barrel when inserted into a bore hole of a panel.