Electronic Module Mounting on Gas Turbine Firewall
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Solution Overview
Problem
Electrical components in gas turbine engines face challenges when located on the 'hot side' of the firewall due to high operating temperatures, which can lead to reduced service life and functionality.
Innovation Solution
An electromechanical component arrangement where a mechanical component is placed on the 'hot side' and an electronic module, connected via a vibration isolation structure, is located on the 'cold side' to isolate it from high temperatures and vibrations, using vibration isolators like springs or elastomeric dampers, and a cover plate to seal the module opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the electronic module is located on the hot side of the firewall to be close to the mechanical component, then the connection and control efficiency is improved, but the electronic module is exposed to high temperatures that reduce its service life and functionality
Solution Approach 1:
The system is divided into two separate sides by the firewall: the mechanical component remains on the hot side while the electronic module is relocated to the cold side. This segmentation allows each component to operate in its optimal temperature environment while maintaining functional connection through the firewall interface.
Solution Approach 2:
The firewall acts as an intermediary structure that separates the hot and cold sides while allowing controlled interaction. The electronic module on the cold side can control and monitor the mechanical component on the hot side through this intermediate barrier, enabling temperature isolation while maintaining operational control.
2Device complexity
If the electronic module is located on the hot side of the firewall, then the mechanical and electrical integration is simplified, but the electronic module is subjected to gas turbine engine vibrations that reduce reliability
Solution Approach 1:
The system separates the vibration-sensitive electronic module from the vibration source by placing it on the cold side of the firewall, while the mechanical component remains on the hot side. This spatial segmentation protects the electronic module from harmful vibrations while maintaining functional integration.
Solution Approach 2:
The firewall serves as an intermediary that isolates the electronic module from vibrations generated by the mechanical component on the hot side. This intermediate structure allows functional connection while blocking harmful vibrational transmission to the sensitive electronics.
3Reliability
If the electronic module is placed on the cold side of the firewall to avoid high temperatures and vibrations, then the service life and reliability are improved, but the connection to the mechanical component on the hot side becomes more complex
Solution Approach 1:
The firewall acts as an intermediary structure that facilitates connection between the cold side electronic module and the hot side mechanical component. It provides the necessary interface and passage ways that enable functional connection while maintaining temperature and vibration isolation.
Solution Approach 2:
The firewall structure performs multiple functions simultaneously: it separates temperature zones, blocks vibration transmission, and provides connection pathways for electrical and data signals. This multi-functionality reduces the need for additional separate components and simplifies the overall system architecture.
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
This arrangement effectively protects electronic modules from high temperatures and vibrations, extending their service life and ensuring reliable operation by maintaining them at a lower temperature and reducing vibration transmission.
Implementation Method 1
at least one vibration isolator secured to the firewall to vibrationally isolate the electronic module from gas turbine engine vibrations
Implementation Method 2
the vibration isolator is one or more of a spring, an elastomeric damper
Implementation Method 3
the vibration isolator is one or more of a spring, an elastomeric damper
Data Source
AI summary
An electromechanical component arrangement for a gas turbine engine includes a mechanical component located at a first side of a firewall of a gas turbine engine and an electronic module of the electromechanical component in communication with the mechanical component separated from the mechanical component by a firewall, the firewall comprising a first side and a second side, the second side having a lower operating temperature than the first side. A vibration isolation structure is located at the second side. The electronic module is connected thereto and includes at least one vibration isolator secured to the firewall to vibrationally isolate the electronic module from gas turbine engine vibrations.