Rigidizable Segmented Insertion Tool for Annular Engine 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 to navigate through varying sizes and geometries, necessitating a tool that can adapt to different annular spaces.
Innovation Solution
An insertion tool composed of multiple segments with hinge members and interfaces, allowing for flexibility and adaptability through features like powder gaps, multi-modal interfaces, compliance features, and displace-to-lock configurations, enabling it to navigate complex pathways and access confined cavities within the engine.
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 geometry, but the device complexity and lack of flexibility increase
Solution Approach 1:
The insertion tool is designed with a modular segmented structure where multiple segments can be configured in different arrangements to adapt to various annular opening sizes and geometries. This universal design allows a single tool to perform multiple functions across different engine configurations, eliminating the need for dedicated specialized tools for each opening.
Solution Approach 2:
The insertion tool is divided into multiple separable segments that can be independently positioned and configured. These segments can be arranged in different patterns (e.g., radially, axially, circumferentially) to match various annular opening geometries, providing both precision fit and adaptability without requiring completely different tools for each application.
2Adaptability or versatility
If the insertion tool has complex geometries and features to meet specific needs, then the functionality is improved, but the ease of manufacture decreases
Solution Approach 1:
By dividing the complex insertion tool into multiple simpler segments, each with standardized features, the manufacturing process is simplified while maintaining the overall complex functionality. Each segment can be manufactured using standard processes, and the complex adaptability emerges from the configuration and arrangement of these segments rather than from complex individual components.
Solution Approach 2:
The segmented structure allows segments to be nested or interconnected in various configurations to create the required complex geometries. This nesting approach enables the tool to achieve sophisticated functional capabilities through simple, manufacturable segments that can be assembled in different patterns to match various annular opening requirements.
3Ease of operation
If the tool is made flexible to navigate complex pathways, then the ease of operation is improved, but the structural integrity may be compromised
Solution Approach 1:
The segmented structure provides flexibility for maneuvering through complex pathways while maintaining structural integrity through controlled articulation points between segments. The segments can flex and adjust relative to each other during insertion, but when properly assembled and engaged, they form a structurally sound configuration that can withstand operational forces within the engine.
Solution Approach 2:
The insertion tool incorporates dynamic characteristics through its segmented design, allowing it to flex and adapt its shape during insertion operations. The segments can move relative to one another to navigate tight spaces and complex geometries, yet the overall structure maintains sufficient rigidity when configured for its intended inspection or maintenance function.
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 comprising: a first hinge; and a second hinge, the first hinge of a first segment being coupled to the second hinge of a second segment adjacent to the first segment through an interface, wherein the interface comprises a powder gap, a multi-modal interface, a compliance feature, a displace-to-lock configuration, an interference fit, or any combination thereof, wherein the insertion tool is configured to be selectively rigidizable using a strength member interfacing with the plurality of segments.