Segmented Insertion Tool for Adaptable Engine Cavity Access
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Solution Overview
Problem
Existing gas turbine engines require specialized insertion tools for annular openings, which are not adaptable to varying sizes and geometries, necessitating multiple tools for different openings.
Innovation Solution
A modular insertion tool with segments formed of a stiff core and flexible shell, allowing for complex geometries and adaptable insertion into various annular and non-annular sections of the engine, equipped with a drive assembly for precise movement and various implements for inspection and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a dedicated specialized insertion tool is used for each annular opening, then the tool can precisely fit the specific opening geometry, but multiple tools are required for different sized openings
Solution Approach 1:
The insertion tool is divided into multiple segments that can be independently positioned and oriented. Each segment can be adjusted to accommodate different annular opening geometries, allowing a single tool to replace multiple dedicated tools while maintaining precise fit through individual segment adjustment
Solution Approach 2:
The insertion tool incorporates movable and adjustable components that allow dynamic reconfiguration of the tool geometry. The segments can be positioned at different angles and distances from the drive assembly, enabling adaptation to various opening sizes and shapes without requiring multiple fixed-geometry tools
2Adaptability or versatility
If a modular insertion tool with adjustable segments is used, then adaptability to various openings is improved, but device complexity increases
Solution Approach 1:
The drive assembly serves multiple functions: it drives all segments simultaneously, maintains their relative positioning, and enables coordinated movement. This universal drive mechanism reduces overall system complexity compared to having separate drive mechanisms for each segment, while still providing the versatility to accommodate different opening geometries
3Adaptability or versatility
If complex geometries and features are included in the insertion tool, then the tool can perform various inspection and maintenance operations, but manufacturing difficulty increases
Solution Approach 1:
Complex operational features are distributed across multiple segments rather than being integrated into a single complex structure. Each segment can be manufactured with specific features needed for particular operations (inspection, maintenance, etc.), and the segments are then assembled together, simplifying the manufacturing of each individual component while providing comprehensive operational capability
Data Source
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AI summary
A tool (100) for inserting into a cavity is provided. The tool (100) includes a plurality of segments (102) moveably coupled to one another, each segment (102) moveable relative to an adjacent segment (102) between a bent position and a coupled position, the plurality of segments (102) including a first segment (102A), the first segment (102A) including: a core (140) formed of a first material; and a shell (142) formed of a second material and comprising or defining a guide feature, a drive feature, a line guide (136), or a combination thereof; wherein the first material defines a greater stiffness than the second material.