Polygonal Isolation Coupler for Structural Vibration Attenuation
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Solution Overview
Problem
In the aerospace industry, there is a need to attenuate mechanical vibrations and shocks transmitted from supporting structures to functional equipment without compromising strength or increasing weight, as existing methods are limited by space and weight constraints.
Innovation Solution
A polygonal-shaped isolation coupler system comprising two brackets with isolators that separate the brackets to attenuate loads, providing a high degree of vibration and shock isolation across a wide frequency spectrum, allowing for adjustable load attenuation based on the number and material of isolators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If existing shock attenuation methods are used, then mechanical vibrations and shocks are reduced, but weight and space constraints are violated
Solution Approach 1:
The isolation coupler divides the support structure into two separate brackets (first bracket and second bracket) that are not directly connected. Multiple isolators are distributed along the perimeter of the polygonal shape, segmenting the shock attenuation function across multiple discrete components rather than using a single heavy attenuation device.
Solution Approach 2:
The isolators are made of elastomeric material that combines flexibility for vibration isolation with sufficient strength for load bearing. This composite material approach allows the isolators to provide both shock attenuation and structural support, eliminating the need for separate heavy attenuation components.
2Object-affected harmful factors
If existing shock attenuation methods are used, then mechanical vibrations and shocks are reduced, but structural strength is compromised
Solution Approach 1:
The isolators serve multiple functions simultaneously: they provide shock attenuation, vibration isolation, and structural load support. The elastomeric material properties allow the same component to handle both dynamic vibration loads and static structural loads, maintaining structural strength while providing attenuation.
Solution Approach 2:
The isolators are configured in a polygonal arrangement that distributes loads evenly around the perimeter, creating a structurally efficient configuration. The curved or rounded elastomeric components can handle multi-directional shock loads from various frequencies, providing comprehensive vibration isolation while maintaining structural integrity.
3Object-affected harmful factors
If isolation components are added to attenuate loads, then vibration isolation is improved, but device complexity increases
Solution Approach 1:
The isolation coupler merges the support structure with the vibration isolation function by integrating isolators directly into the bracket assembly. The first and second brackets form a unified polygonal structure with isolators positioned at regular intervals, creating a single integrated component rather than separate isolation devices that would need to be attached to existing structures.
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 system effectively reduces mechanical shocks and vibrations by up to 20 dB, offering a high degree of load dampening and flexibility, while maintaining structural integrity and adhering to weight and space constraints.
Implementation Method 1
The isolators separate each one of the first-bracket sides from a corresponding one of the second-bracket sides to attenuate a load transferred from the first bracket to the second bracket
Data Source
AI summary
An isolation coupler for coupling a functional element to a support structure includes a first bracket. The first bracket includes a number of first-bracket sides. The number of first-bracket sides forms a closed polygonal shape, in plan view. The isolation coupler further includes a number of isolators coupled to each one of the first-bracket sides. The isolation coupler also includes a second bracket. The second bracket includes a number of second-bracket sides. The second bracket sides are coupled to the isolators. The number of second-bracket sides is equal to the number of first-bracket sides and forms the closed polygonal shape, in plan view. The isolators separate each one of the first-bracket sides from a corresponding one of the second-bracket sides to attenuate a load transferred from the first bracket to the second bracket.