Multi-leaved Core Brake Disk Vibration Damping
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Solution Overview
Problem
Aircraft brake systems using carbon composite friction disks face issues with vibration and noise generation due to high-speed operations, leading to potential material destruction and increased maintenance costs.
Innovation Solution
A multi-leaved core damping disk made from carbon composite or refractory metal materials, featuring a non-continuous structure with spacers and a floating core, is introduced to dampen vibrations and noise, improving braking performance and extending the life of friction disks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If carbon composite friction disks are used to withstand high temperature, then heat resistance is improved, but vibration and noise generation worsen
Solution Approach 1:
The friction disk is divided into multiple segments or leaves arranged in a layered configuration. This segmentation allows each layer to independently dampen vibrations while maintaining the overall structural integrity and heat resistance of the carbon composite material.
Solution Approach 2:
The invention uses composite material structures combining carbon composite layers with damping materials or treatments. This creates a multi-layered friction disk that simultaneously provides heat resistance from the carbon composite and vibration damping from the integrated damping components.
2Speed
If friction disks are used for high-speed braking, then braking performance is improved, but heat generation increases leading to material destruction
Solution Approach 1:
The friction disk is divided into multiple segments or leaves arranged in a layered configuration. This segmentation allows each layer to independently dampen vibrations while maintaining the overall structural integrity and heat resistance of the carbon composite material.
Solution Approach 2:
The invention modifies physical parameters such as the thickness, material composition, or thermal properties of individual friction disk layers. By adjusting these parameters, the disk can better manage heat generation during high-speed braking while maintaining structural integrity.
3Ease of manufacture
If traditional friction disk materials are used, then manufacturing cost is reduced, but durability under high temperature worsens
Solution Approach 1:
The invention uses composite material structures combining carbon composite layers with damping materials or treatments. This creates a multi-layered friction disk that simultaneously provides heat resistance from the carbon composite and vibration damping from the integrated damping components.
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
The multi-leaved core damping disk effectively reduces brake noise and vibration, enhancing braking performance and extending the lifespan of friction disks through efficient heat absorption and vibration damping, while allowing for cost-effective reuse and repurposing of materials.
Implementation Method 1
multi-leaved core damping disk... dampen vibrations and noise
Implementation Method 2
friction disks that, when forced into contact with each other, help to stop the aircraft
Implementation Method 3
the friction disks are configured to withstand and dissipate the heat generated from contact between the friction disks during braking
Implementation Method 4
Carbon composite materials are better suited for high temperature use
Data Source
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AI summary
The present disclosure provides a multi-leaved core damping disk comprising an annular-shaped first disk half (82), an annular shaped second disk half (83), and a multi-leaved core (210, 410, 510) axially aligned with, and disposed therebetween.