Ribbed Piston Housing Assembly for Aircraft Brake Vibration Damping
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Solution Overview
Problem
Aircraft brake systems experience increased friction-induced vibration due to higher torque and loads, which existing designs fail to adequately mitigate, leading to dynamic coupling issues between piston housing and brake rods.
Innovation Solution
A piston housing assembly featuring a torque takeout arm with a structural rib extending between a main annular ring and a torque takeout annular ring, designed to dampen vibrations by structurally coupling these components and optimizing weight distribution, while also providing torque transfer from a brake rod to an axle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If higher torque and loads are used in brake actuation designs, then braking performance is improved, but friction-induced vibration increases
Solution Approach 1:
The patent applies vibration damping principles by introducing a damper mechanism that specifically targets and reduces friction-induced vibrations. The damper is integrated into the piston housing assembly to counteract the harmful vibrations generated during high-torque braking operations, allowing the system to maintain high braking performance while eliminating the associated vibration problem.
Solution Approach 2:
The structural rib acts as an intermediary element that couples the piston housing to the torque takeout arm. This rib provides a stiffening connection that prevents relative motion and vibration between these components, thereby reducing friction-induced vibration while allowing the high-torque braking system to function effectively.
2Object-generated harmful factors
If structural rigidity is increased to reduce vibration, then vibration damping is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into integrated components. The structural rib is incorporated directly into the piston housing assembly, combining vibration damping, structural support, and torque transfer functions into a single integrated structure. This eliminates the need for separate vibration damping components, thereby reducing overall device complexity while achieving effective vibration control.
Solution Approach 2:
The torque takeout arm serves multiple functions: it transfers torque from the brake rod to the wheel assembly, provides structural support for the piston housing, and acts as a mounting structure for the vibration damper. This multi-functionality reduces the number of separate components needed, thereby reducing device complexity while achieving effective vibration damping.
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 structural rib effectively reduces vibrations during braking events, enhancing the stability and performance of aircraft brake systems by mitigating torsional, bending, and longitudinal vibrational modes, thereby improving the overall braking experience.
Implementation Method 1
The structural rib may be configured to dampen vibration of the piston housing during a braking event
Data Source
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AI summary
A piston housing may comprise: a main annular ring (110) defining a main bore (112); a torque takeout annular ring (120) defining a torque takeout bore (122); a torque takeout arm (140) extending from the main annular ring to the torque takeout annular ring and defining an aperture (150) therethrough; and a structural rib (160) disposed within the aperture and extending from the main annular ring to the torque takeout annular ring.