Acoustic Panel Captive Mount Vibration Absorption
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Solution Overview
Problem
Current acoustic treatments are limited by their size, cost, and effectiveness in improving sonic characteristics, necessitating the development of novel designs that offer superior sound absorption and reduced dimensions.
Innovation Solution
The acoustic panel design incorporates a porous material with a mount or frame that provides captive support, allowing for movement and combining the absorption capabilities of both porous materials and vibrating panels, along with additional features like scrim layers and frames to enhance sound absorption, potentially reducing the panel's thickness and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fixed porous materials are used for acoustic treatment, then sound absorption is achieved, but the panel size and thickness must be large to be effective
Solution Approach 1:
The patent combines porous sound-absorbing material with a vibrating panel structure into a single integrated acoustic treatment panel. The porous material is positioned behind the vibrating panel, allowing the system to achieve both sound absorption through the porous material and enhanced absorption through the vibration of the panel itself, thereby improving sound absorption capability while reducing the required panel thickness compared to traditional fixed porous materials alone
Solution Approach 2:
The acoustic treatment panel uses a composite structure consisting of a vibrating panel (which can be made from various materials such as wood, metal, or composite materials) combined with porous sound-absorbing material (such as fiberglass, foam, or mineral wool). This composite construction allows the panel to leverage the sound absorption properties of porous materials while adding the vibration-based absorption mechanism, achieving superior sound absorption in a thinner profile
2Reliability
If solid vibrating panels are used for acoustic treatment, then sound absorption is improved, but the panel becomes larger and more expensive
Solution Approach 1:
The patent merges the functions of sound absorption into a single panel structure that combines vibrating panel elements with porous material, eliminating the need for separate acoustic treatment components. This integration reduces manufacturing complexity and cost while maintaining or improving sound absorption performance
Solution Approach 2:
The acoustic treatment panel is designed to perform multiple acoustic functions simultaneously: the vibrating panel provides sound absorption through vibration, while the porous material behind it provides additional sound absorption. This multi-functionality allows a single panel to replace what would traditionally require multiple separate components, reducing overall manufacturing cost and complexity
3Reliability
If larger panel dimensions are used, then sound absorption effectiveness increases, but the installation space and cost increase
Solution Approach 1:
The patent changes the acoustic parameters of the panel by incorporating a vibrating structure that can resonate at specific frequencies, thereby enhancing sound absorption effectiveness without increasing panel area. The vibrating panel can be tuned to target specific frequency ranges, allowing effective acoustic treatment in smaller spaces where traditional large porous panels would be required
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
This design enhances sound absorption capabilities, allowing the panel to perform better than traditional fixed porous materials or solid vibrating panels, while potentially reducing the panel's size and cost, offering superior sonic results.
Implementation Method 1
The panel member comprises a porous material
Implementation Method 2
the mount is arranged to captively support the panel member... allowing some movement between the mount and the panel member... the panel member can vibrate in response to acoustic vibrations
Data Source
AI summary
An acoustic panel device includes a panel member and a mount. The panel member includes a porous material. The mount is arranged to captively support the panel member. The mount can be a frame that surrounds the panel member. The frame can define a channel, and a portion of the panel member is disposed in the channel.