Sound Reducing Panel with Aerogel Decoupling
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Solution Overview
Problem
Existing sound reduction panels lack waterproofing and decorative options while maintaining effective sound reduction properties without increasing cost or weight, and struggle with fire resistance and excessive heat.
Innovation Solution
A water-resistant sound reducing panel is developed with a front porous sheet, a fiber glass fiber board sound absorbing member, a polymeric sound blocking member, and an aerogel decoupling member, along with a drenching shield and decorative acoustically transparent sheet to enhance sound absorption, block sound, reduce vibration, and prevent water ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sound reducing panels are used, then sound reduction is achieved, but waterproofing and fire resistance are insufficient
Solution Approach 1:
The patent employs composite materials throughout the panel structure: the porous substrate combines sound absorption with structural integrity, the polymeric sound blocking member provides both acoustic blocking and fire resistance, and the aerogel decoupling member delivers thermal insulation and vibration reduction. These composite materials resolve the contradiction by integrating multiple protective functions into the panel's core structure rather than adding separate protective layers.
Solution Approach 2:
The patent applies local quality by positioning specific materials at strategic locations: the polymeric sound blocking member is placed where sound transmission must be blocked while providing fire resistance, the aerogel decoupling member is positioned to reduce vibration transfer and provide thermal insulation, and the porous substrate is configured to optimize both sound absorption and water resistance. This localized application of specialized materials achieves waterproofing and fire resistance without uniformly increasing panel complexity.
2Reliability
If aerogel decoupling member is added to reduce sonic vibration, then sound reduction improves, but weight increases
Solution Approach 1:
The aerogel decoupling member is implemented as a thin, flexible layer that provides exceptional vibration reduction and thermal insulation properties without adding significant weight. This thin-film approach allows the panel to achieve improved sound reduction (up to 34% increase in sound transmission coefficient) while maintaining a lightweight construction that does not significantly increase overall panel weight.
Solution Approach 2:
The patent utilizes the unique physical parameters of aerogel material, which has extremely low density (as low as 1/10th the density of styrofoam) while maintaining high thermal and acoustic performance. By changing to this material with fundamentally different density and structural parameters, the panel achieves superior vibration reduction without the weight penalty that would result from using traditional denser insulating materials.
3Reliability
If polymeric sound blocking member is used to block sound, then sound transmission coefficient increases, but fire resistance decreases
Solution Approach 1:
The aerogel decoupling member serves as an intermediary between the polymeric sound blocking member and the exterior environment, providing thermal insulation that protects the polymeric material from excessive heat. This intermediary layer allows the polymeric sound blocking member to maintain its acoustic blocking properties while being shielded from fire hazards, effectively resolving the contradiction between sound blocking performance and fire resistance.
Solution Approach 2:
The patent creates a composite structure where the polymeric sound blocking member is combined with the thermally insulating aerogel decoupling member. This composite construction allows the polymeric material to provide superior sound blocking (increasing sound transmission coefficient by up to 34%) while the integrated aerogel layer provides fire protection, eliminating the need to choose between acoustic performance and fire resistance.
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 panel achieves improved sound reduction (up to 34% increase in sound transmission coefficient) with enhanced fire resistance and decorative capabilities, suitable for various environments without significant weight or cost increases.
Implementation Method 1
An aerogel material decoupling member located between the sound blocking member and the rear non-porous sheet for reducing sonic vibration from being transferred from the sound blocking member to the rear non-porous sheet
Implementation Method 2
A fiber glass fiber board sound absorbing member located adjacent to the front porous sheet for dissipating sound entering into the front porous sheet
Implementation Method 3
A sound blocking member comprises a sheet of polymeric material having a weight equal to or greater than one pound per square foot located adjacent to the sound absorbing member for blocking sound propagating through the sound absorbing member
Implementation Method 4
A drenching shield located between the front porous sheet and the sound absorbing member for preventing water from entering the sound absorbing member from the front porous sheet
Data Source
AI summary
An improved sound reducing panel is disclosed comprising a front porous sheet for enabling sound to enter into the sound reducing panel and a rear non-porous sheet. A sound absorbing member dissipates sound entering into the front porous sheet. A sound blocking member blocks sound from exiting from the sound absorbing member. A decoupling member reduces sonic vibration from being transferred from the sound blocking member to the rear non-porous sheet. One embodiment includes a drenching shield for inhibiting water from entering the sound absorbing member. Another embodiment includes a decorative or artistic image located on the sound reducing panel.