Aircraft Turbomachine Pylon With Adjustable Fluid Pipe Docking
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Solution Overview
Problem
The rigid connection of fluid pipes to turbomachines during docking poses a risk of damage to the turbomachine, as they are heavy and difficult to handle.
Innovation Solution
A pylon with a movable portion for the fluid pipe that can adjust its position along the axis, allowing the connection end to be moved between high and low positions, facilitating safe docking without damaging the turbomachine, and incorporating telescopic rods and locking mechanisms for precise adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If rigid fluid pipes are used for connection, then structural stability is improved, but the risk of damaging the turbomachine during docking increases
Solution Approach 1:
The fluid pipe is divided into a fixed portion and a movable portion that can independently adjust. This segmentation allows the rigid fixed portion to maintain structural stability while the movable portion can be repositioned to avoid damaging the turbomachine during docking operations.
Solution Approach 2:
The fluid pipe incorporates a movable portion that can dynamically adjust its position along the axis between a first position (for connection) and a second position (for protection). This dynamic capability resolves the contradiction by allowing the pipe to be rigid when needed and repositionable when docking the turbomachine.
2Ease of manufacture
If the pipe position is fixed, then manufacturing simplicity is improved, but adaptability to different operational positions deteriorates
Solution Approach 1:
The pipe system transitions from a completely fixed structure to a dynamic system with a movable portion that can be repositioned along the axis. This maintains manufacturing simplicity while adding the necessary adaptability for different operational positions during turbomachine docking and testing.
Solution Approach 2:
The movable portion of the pipe can be nested within or alongside the fixed portion, allowing compact storage in a retracted position and extended positioning when needed. This nesting approach maintains ease of manufacture while providing position adaptability.
3Adaptability or versatility
If the movable portion is added to the pipe, then position adjustability is improved, but device complexity increases
Solution Approach 1:
By segmenting the pipe into fixed and movable portions, the complexity is localized to only the necessary moving components rather than the entire pipe system. This segmentation approach provides position adjustability while minimizing overall device complexity.
Solution Approach 2:
A plate serves as an intermediary element that carries the movable portion and provides a simple interface for position adjustment. This intermediary structure simplifies the overall design by providing a single point of control for the movable portion rather than requiring complex adjustment mechanisms throughout the pipe.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables safe and efficient connection of fluid pipes to turbomachines, preventing damage during docking and allowing for freedom of movement due to thermal expansion or vibrations.
Implementation Method 1
a compression spring bearing on the second ring and on the plate to bias the second ring to move away from the plate
Data Source
AI summary
A pylon for supporting an aircraft turbomachine, in particular for a test bench, the pylon having a generally elongated shape along an axis and including, at a first longitudinal end, first members for fixing to a turbomachine and, at a second longitudinal end, second members for fixing to a base plate, the pylon being traversed by at least one fluid pipe including a first end for connecting to the turbomachine and a second end for connecting to a fluid supply circuit, wherein the at least one pipe includes a movable portion movable in translation along the axis so as to be able to adjust the position along the axis of the first connecting end relative to the first longitudinal end. It also concerns a method of mounting an aircraft turbomachine on such a pylon.