Sound Control Membrane with Viscoelastic and Thermal Layers

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Solution Overview

Problem

Conventional noise control techniques for structural components are often unwieldy, toxic, inflexible, and ineffective in high humidity and temperature variations, and may contain volatile substances or be combustible.

Innovation Solution

A sound control membrane comprising a viscoelastic layer, a protective layer, a thermal isolating layer, and an attachment layer, where the viscoelastic layer is disposed between the protective and thermal isolating layers, providing effective sound insulation and thermal isolation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional materials such as bitumen or lead are used for noise control, then sound insulation is achieved, but the materials become unwieldy, toxic, and emit unpleasant smells when subjected to temperature increases

Engineering Contradiction:

Improvesound insulation performanceVSAvoidtoxicity and odor emission

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the material parameters by using viscoelastic polymers instead of conventional bitumen or lead. These polymers maintain effective sound insulation while eliminating toxicity and odor emission issues, especially under temperature variations. The viscoelastic layer's molecular structure provides damping properties that reduce sound transmission without the harmful characteristics of traditional materials.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs a composite structure consisting of a viscoelastic layer combined with protective and thermal isolating layers. This composite material approach achieves superior sound insulation performance while the specific material selection ensures non-toxicity and odor-free operation, resolving the contradiction between performance and safety.

Inventive Principle:

Principle #40Composite materials

2Reliability

If conventional noise control materials are used, then sound absorption is achieved, but the materials are inflexible and difficult to apply to structural components

Engineering Contradiction:

Improvesound absorption capabilityVSAvoidflexibility and applicability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent utilizes a viscoelastic layer that exhibits flexible shell characteristics. This layer can be easily conforming to various structural component shapes and surfaces, making application simple while maintaining effective sound absorption. The viscoelastic material's inherent flexibility allows it to adapt to irregular geometries without requiring complex installation procedures.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If conventional techniques are used for noise control, then sound reduction is achieved, but the techniques include volatile substances or are combustible

Engineering Contradiction:

Improvesound reduction effectivenessVSAvoidvolatility and combustibility

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent fundamentally changes the material parameters by selecting non-volatile, non-combustible viscoelastic polymers. These materials provide effective sound reduction through viscoelastic damping while completely eliminating the harmful properties of volatility and combustibility associated with conventional noise control materials.

Inventive Principle:

Principle #35Parameter changes

4Reliability

If conventional noise control materials are applied, then sound insulation is achieved, but performance deteriorates in areas of high humidity and temperature variation

Engineering Contradiction:

Improvesound insulation performanceVSAvoidperformance stability under environmental conditions

Core Design Contradiction:

ReliabilityVSStability of the object's composition

Solution Approach 1:

The patent employs a composite structure with a viscoelastic layer combined with protective and thermal isolating layers. This composite design provides stable sound insulation performance across a wide range of environmental conditions including high humidity and temperature variations. The protective and thermal isolating layers additionally enhance the stability of the viscoelastic layer's performance under harsh environmental conditions.

Inventive Principle:

Principle #40Composite materials

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 sound control membrane effectively reduces noise transmission by up to 35 dB, maintains thermal insulation across a wide temperature range, and is non-toxic and flexible, making it suitable for various applications.

Implementation Method 1

The sound control membrane includes a viscoelastic layer, a protective layer attached to the viscoelastic layer, and a thermal isolating layer attached to the viscoelastic layer

Methodology Applied

Scientific EffectViscoelasticity: Viscoelasticity

Implementation Method 2

a thermal isolating layer attached to the viscoelastic layer

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentUS20250124908A1System, apparatus, and method for sound control

Publication Date: 2025.04.17 FEDORENKO ARTEM

AI summary

A sound control membrane is disclosed. The sound control membrane has a viscoelastic layer, a protective layer attached to the viscoelastic layer, and a thermal isolating layer attached to the viscoelastic layer. The viscoelastic layer is disposed between the protective layer and the thermal isolating layer. The sound control membrane also has an attachment layer attached to the thermal isolating layer.