Acoustic Panel Thru-Holes Disrupt Sound Transmission
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Solution Overview
Problem
Current soundproofing technologies for wall assemblies are expensive, complex, and prone to human error during installation, and they do not effectively reduce sound transmission due to issues with vibration phase and pressure differential.
Innovation Solution
A wall assembly incorporating an acoustic panel made of expanded polystyrene with a grid array of thru-holes that creates dead space between drywall panels, disrupting mechanical coupling and reducing sound transmission by causing in-phase vibrations and minimizing the effective surface area for sound wave resonance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional soundproofing technology with multiple components is used, then sound transmission reduction is achieved, but the assembly becomes expensive and complicated
Solution Approach 1:
The patent combines multiple soundproofing functions (absorption, decoupling, damping) into a single integrated acoustic panel component. This panel incorporates resilient channels, sound absorbing material, and damping features all in one element, eliminating the need for separate installation of multiple components and simplifying the overall assembly process while maintaining effective sound transmission reduction.
Solution Approach 2:
The acoustic panel serves multiple functions simultaneously: it provides sound absorption through its porous material structure, mechanical decoupling through resilient channels, and vibration damping through integrated damping features. This multi-functionality in a single component reduces both assembly complexity and cost while achieving comprehensive soundproofing performance.
2Object-affected harmful factors
If traditional soundproofing technology with multiple components is used, then sound transmission reduction is achieved, but installation is expensive and prone to human error
Solution Approach 1:
By integrating resilient channels, sound absorbing material, and damping features into a single pre-assembled acoustic panel, the invention eliminates multiple installation steps and reduces the potential for human error. The panel is designed to be installed as one unit, simplifying the manufacturing process and making installation more straightforward and consistent.
Solution Approach 2:
The acoustic panel is pre-assembled with all soundproofing components (resilient channels, absorbing material, damping features) already in place during manufacturing. This preliminary assembly ensures proper configuration and positioning before installation, reducing the complexity of on-site assembly and minimizing installation errors.
3Object-affected harmful factors
If conventional wall assembly with additive soundproofing components is used, then sound transmission is reduced, but the solution becomes expensive
Solution Approach 1:
The patent consolidates multiple soundproofing materials and components into a single integrated acoustic panel, eliminating the need to install separate layers of soundproofing materials. This integration reduces the total quantity of materials required while maintaining effective sound transmission reduction through the combined functionality of absorption, decoupling, and damping features.
Solution Approach 2:
The acoustic panel utilizes composite construction combining resilient channels, sound absorbing materials, and damping features in a single integrated structure. This composite approach achieves superior sound transmission reduction compared to individual materials, reducing the overall material quantity needed while improving performance.
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 solution significantly reduces sound transmission by up to 60% as demonstrated by increased Sound Transmission Class ratings, providing effective soundproofing while maintaining structural integrity and simplifying the assembly process.
Implementation Method 1
an acoustic panel made of expanded polystyrene with a grid array of thru-holes that creates dead space between drywall panels, disrupting mechanical coupling and reducing sound transmission
Implementation Method 2
causing in-phase vibrations and minimizing the effective surface area for sound wave resonance
Implementation Method 3
minimizing the effective surface area for sound wave resonance
Data Source
AI summary
Various embodiments for a wall assembly having an acoustic panel defining a plurality of thru-holes that act to break low density mechanically coupled pathways for sound transmission through the acoustic panel for reducing sound transmission are disclosed herein.