Segmented Insertion Tool With Selective Rigidity for Turbine Access
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Solution Overview
Problem
Existing gas turbine engines require specialized insertion tools for each annular opening, which are complex and lack flexibility for servicing confined cavities.
Innovation Solution
An insertion tool with a plurality of segments, each with a hinge member and a cavity, and a selectively rigidizable strength member, allowing it to be configured for non-rigidized navigation through complex pathways and rigidized for servicing operations.
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 be precisely fitted to the specific opening, but the device complexity increases and flexibility decreases
Solution Approach 1:
The insertion tool is divided into multiple segments that can pivot relative to each other via hinge members, allowing the tool to conform to different annular opening geometries while maintaining a single standardized tool design
Solution Approach 2:
The insertion tool transitions from a rigid configuration during servicing operations to a flexible, adaptable configuration during navigation, enabling the same tool to both navigate complex pathways and maintain precise fit when needed
2Stability of the object's composition
If the insertion tool is made rigid for servicing operations, then the tool stability and precision improve, but the tool cannot navigate complex pathways
Solution Approach 1:
The insertion tool dynamically changes its rigidity state based on operational phase: flexible segments with active hinge members enable navigation through complex pathways, while locked segments provide rigid stability during servicing operations
Solution Approach 2:
The tool's rigidity parameter is changed from flexible to rigid by activating the selectively rigidizable strength member, transforming the tool from a navigable configuration to a stable operating configuration
3Adaptability or versatility
If the insertion tool includes complex geometries and features, then the tool can perform required servicing functions, but the manufacturing complexity increases
Solution Approach 1:
A single standardized insertion tool design with universal segments and hinge members can service multiple different annular openings and equipment types, eliminating the need for multiple specialized tools with complex unique geometries
Solution Approach 2:
The tool uses standardized segmented modules that can be manufactured independently and assembled, simplifying manufacturing compared to creating single-piece complex geometries while maintaining full servicing capability
Data Source
AI summary
An insertion tool for performing an operation on equipment, the insertion tool including: a plurality of segments, each segment of the plurality of segments including a body including: a first hinge; a second hinge, the first and second hinge members pivotally coupling adjacent segments of the plurality of segments together; and a cavity extending along the body of the segment, the cavity exiting the body at a plurality of exit locations, wherein at least one of the plurality of exit locations is disposed adjacent to the first hinge; and a selectively rigidizable strength member disposed within the cavity.