Tessellated Acoustic Components for Balanced Sound Control

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Solution Overview

Problem

Existing acoustical surface treatments, such as foam products, have limited aesthetic appeal and acoustical utility, primarily offering sound absorption with limited adjustability in frequency response, leading to potential imbalances in acoustical response, especially in environments requiring a balanced high-frequency, mid-frequency, and low-frequency performance.

Innovation Solution

The development of three-dimensional tessellated acoustic components that can be stacked and nested for efficient shipping and production, allowing for customizable acoustical characteristics by combining absorptive and reflective surfaces, and optionally coated with skins for enhanced diffusion and aesthetic appeal, enabling precise control over absorption, reflection, and diffusion across different frequency ranges.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional foam products are used for sound absorption, then sound absorption performance is improved, but aesthetic appeal and acoustical utility are limited

Engineering Contradiction:
Improvesound absorption performanceVSAvoidaesthetic appeal and acoustical utility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The acoustic treatment is divided into multiple planar components with different surface geometries (flat, convex, concave) that can be independently selected and arranged. Each component type provides different acoustic properties, allowing customization of both aesthetic appearance and acoustical performance for high-frequency, mid-frequency, and low-frequency ranges.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the acoustic treatment can use different component types with specific surface geometries tailored to local acoustic requirements. For example, convex surfaces can be placed in areas needing diffusion, while flat surfaces provide absorption, creating locally optimized acoustic zones within the overall treatment.

Inventive Principle:
Principle #3Local quality

2Ease of manufacture

If foam products with simple surface shapes are used, then manufacturing cost is reduced, but aesthetic appeal and acoustical adjustability are limited

Engineering Contradiction:
Improvemanufacturing costVSAvoidacoustical adjustability
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The system segments acoustic treatment into standardized planar components that can be manufactured using simple, cost-effective processes. Each component type (flat, convex, concave) is produced as a discrete unit, allowing efficient manufacturing while maintaining acoustic performance through geometric variation rather than material complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Acoustical characteristics are adjusted by changing geometric parameters of the planar components (surface curvature, orientation, arrangement patterns) rather than changing material properties. This allows extensive acoustical customization through simple shape variations that remain manufacturable using standard processes.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If traditional foam products are applied indiscriminately, then installation is simplified, but acoustical balance is compromised

Engineering Contradiction:
Improveinstallation simplicityVSAvoidacoustical balance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The acoustic treatment is segmented into standardized planar components that can be systematically arranged in repeating patterns or custom configurations. This segmentation allows installers to achieve proper acoustic balance through methodical arrangement of different component types rather than requiring complex custom fabrication or indiscriminate application.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The planar components are designed to be universally applicable in multiple configurations and arrangements. The same basic component types can serve multiple acoustic functions (absorption, diffusion, reflection) depending on their orientation and arrangement, allowing flexible installation approaches that maintain acoustic balance across different application scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Reliability

If acoustical treatment is customized for frequency response, then acoustical performance is improved, but production complexity and material waste increase

Engineering Contradiction:
Improveacoustical performanceVSAvoidproduction complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Frequency response customization is achieved by selecting and arranging different types of planar components (flat, convex, concave) in specific proportions and patterns, rather than custom-manufacturing each piece. This segmentation allows acoustic tuning through compositional variation of standardized elements, reducing production complexity while maintaining performance customization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Frequency response characteristics are controlled by changing the arrangement parameters and geometric configurations of standard planar components rather than altering material properties or custom-manufacturing parts. This allows acoustic customization through design parameter adjustment while maintaining simple, consistent production processes.

Inventive Principle:
Principle #35Parameter changes

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

These components provide improved acoustical performance with enhanced aesthetic value, allowing for balanced sound absorption and reflection, reducing material waste and shipping costs, while offering flexible installation patterns and precise control over sound characteristics, suitable for various environments from studios to homes.

Implementation Method 1

acoustically absorptive components may be manufactured from materials such as acoustic foam

Methodology Applied
Scientific EffectSound absorption: Acoustic Absorption

Implementation Method 2

broadband sound absorption

Methodology Applied
Scientific EffectDamping: Damping

Implementation Method 3

when skins are added to the configurations in optional embodiments, those skinned surfaces directly add diffusion to the results

Methodology Applied
Scientific EffectDiffusion: Diffusion

Implementation Method 4

they can reflect the sound, changing its direction of travel

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS7703575B2Three-dimensional tessellated acoustic components
Publication Date: 2010.04.27 CHILES CHARLES M
  • US7703575B2 patent drawing
  • US7703575B2 patent drawing
  • US7703575B2 patent drawing

AI summary

A set of acoustic components having complementarily tessellated shapes such that they may be nested together to constitute a rectangular parellelepiped, suitable for efficient storage and shipping. Each component also has a flat side. The shape set is further defined such that many aesthetically attractive, sculpture-like configurations may be created through installation of the components on a flat surface of a building such as a wall or ceiling, while substantially modifying the acoustic properties of the building feature. Acoustically absorptive, reflective, and diffusive components can be used in combinations with each other in order to achieve desired acoustic treatment of the building feature. Several methods of fabrication of the acoustic components are disclosed.