Aircraft Brake Relay Holder for Heat and Shock Reliability
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Solution Overview
Problem
Existing temperature monitoring systems for aircraft wheel brakes face challenges in withstanding harsh environments and ensuring reliable communication of temperature data, particularly during high-temperature and shock conditions.
Innovation Solution
A holder for a wireless relay device is designed to be securely mounted on an aircraft wheel brake's torque tube, featuring a rigid hollow arm member and a support member to accommodate the relay device, with a communications cable conduit and redundant connections, enabling robust wireless communication with temperature sensing devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless relay device is mounted on the torque tube to monitor brake temperature, then temperature monitoring capability is improved, but the device must withstand harsh high-temperature and shock conditions which increases reliability challenges
Solution Approach 1:
The holder comprises a rigid hollow arm member that receives the wireless relay device within its hollow interior. This nesting arrangement protects the relay device from direct exposure to harsh brake environment conditions including high temperatures and shocks, while maintaining monitoring capability.
Solution Approach 2:
The holder acts as an intermediary structure between the torque tube and the wireless relay device. It provides a protected mounting environment that mediates the harsh conditions, allowing the relay device to function reliably without direct exposure to extreme temperatures and mechanical shocks.
2Strength
If a rigid hollow arm member is used to provide conduit for communications cable, then cable protection and structural rigidity are improved, but device complexity increases
Solution Approach 1:
The rigid hollow arm member serves multiple functions simultaneously: it provides structural support to hold the relay device, acts as a protective conduit for the communications cable, and offers mechanical strength to withstand brake environment conditions. This multi-functionality reduces overall device complexity despite the added structural element.
Solution Approach 2:
The holder merges the mounting structure and cable conduit into a single integrated rigid hollow arm member. This combination eliminates the need for separate mounting brackets and cable channels, reducing overall complexity while maintaining structural rigidity and cable protection.
3Reliability
If the wireless relay device is securely mounted on the torque tube, then monitoring reliability under shock conditions is improved, but installation complexity increases
Solution Approach 1:
The holder is pre-configured with the rigid hollow arm member and support member structure before installation. This preliminary preparation allows for simplified on-site installation of the wireless relay device, as the mounting structure is already in place and ready to receive the device securely.
Data Source
AI summary
A holder for a wireless relay device is disclosed including a rigid hollow arm member to be received in a groove in a torque tube spline of an aircraft wheel brake; and a support member to support the wireless relay device, the support member mechanically coupled to the rigid hollow arm member towards a first end of the rigid hollow arm member, wherein: the rigid hollow arm member provides a conduit for a communications cable to couple to the wireless relay device. Also disclosed is an aircraft wheel brake comprising the holder and an aircraft comprising the aircraft wheel brake.