Heat Shield Tab Mounting for Aircraft Brake Thermal Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Aircraft wheel and brake assemblies face thermal damage due to high temperatures generated during brake actuation, and existing heat shield assemblies without radially extending tab portions are insufficient in providing adequate protection.
Innovation Solution
A heat shield assembly with a circumferential heat shield and radially inward extending tab members, featuring apertures for mounting to the wheel, is introduced, which includes axially extending portions connected to the heat shield and radially inward portions configured for secure attachment, along with torque bars for additional support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heat shield is attached directly to the wheel without radially extending tab portions, then the structure is simpler, but the heat shield cannot be securely mounted to the wheel
Solution Approach 1:
The tab member is divided into two distinct portions: an axially extending first portion that connects to the heat shield, and a radially inward extending second portion that mounts to the wheel. This segmentation allows each portion to be optimized for its specific function while maintaining overall structural integrity.
Solution Approach 2:
The tab member extends in multiple dimensions from the heat shield: axially (first portion) and radially inward (second portion). This multi-dimensional extension provides both secure connection to the heat shield and proper positioning for wheel mounting, resolving the contradiction between simplicity and mounting security.
2Adaptability or versatility
If the tab member uses a single strip of material extending radially inward, then the manufacturing is simpler, but the mounting flexibility is reduced
Solution Approach 1:
The tab member can be configured in different ways (single strip, multiple arms, integral or separate components) depending on the specific mounting requirements. This dynamic adaptability allows the design to be optimized for different wheel types and mounting scenarios while maintaining ease of manufacture through standardized construction methods.
3Strength
If the first portion of the tab member is formed integrally with the heat shield, then the assembly is more robust, but the manufacturing complexity increases
Solution Approach 1:
The first portion of the tab member is formed integrally with the heat shield, merging two components into one robust assembly. This integral construction eliminates potential failure points at the connection interface and provides superior structural integrity while still allowing for practical manufacturing through processes like stamping or forming.
4Reliability
If multiple arms form the tab member with individual apertures, then the mounting reliability is improved, but the device complexity increases
Solution Approach 1:
The tab member is divided into multiple arms, each with its own aperture for mounting. This segmentation provides multiple independent mounting points, significantly improving mounting reliability by distributing the mounting loads and providing redundancy. Each arm can be independently positioned and secured to the wheel.
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
A heat shield assembly for a braking system is provided. The heat shield assembly includes a circumferential heat shield (304,354,504,554,604) having a first end and a second end spaced from the first end along a central axis. A tab member (212,302,352,402,502,552,602) is disposed proximate the second end of the circumferential heat shield (304,354,504,554,604). The tab member (212,302,352,402,502,552,602) has a radially extending portion with an aperture extending therethrough. The aperture is configured for mounting the circumferential heat shield (304,354,504,554,604) to a wheel.