Vertically Collapsible Barrier Composite Wall Acoustic Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vertically folding wall partitions face challenges in achieving improved acoustic performance without compromising weight and operational efficiency, as sound transmission through joints and gaps remains a significant issue, and heavier materials or seals can increase stress on lifting mechanisms.
Innovation Solution
The use of composite walls with honeycomb core materials, perforated metal face sheets, semi-rigid fiberglass insulation, and strategically placed seals, including elongated lip formations and flexible bulb seals, along with motor-actuated side edge perimeter seals, to enhance sound damping and absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavier gauge steel face and backer sheets are used, then acoustic performance is improved, but weight increases and stress on lifting mechanism increases
Solution Approach 1:
The patent employs composite wall construction with multiple layers including face sheets, core material, backer sheets, and insulation material. This composite structure achieves superior acoustic performance through the combined effects of mass, damping, and absorption, while keeping individual component weights manageable. The layered composite design provides acoustic benefits greater than the sum of individual materials.
Solution Approach 2:
The patent applies different materials and thicknesses at different locations within the wall panel structure. For example, varying the thickness of face sheets and backer sheets, positioning insulation material strategically in gaps, and applying seals at specific joints creates localized acoustic optimization without uniformly increasing the weight of the entire panel.
2Reliability
If larger, thicker and heavier insulation and seals are added, then acoustic performance is improved, but weight increases and stress on lifting mechanism increases
Solution Approach 1:
The patent optimizes acoustic performance by carefully selecting and adjusting parameters such as insulation material thickness, density, and positioning, as well as seal geometry and material properties. These parameter optimizations achieve effective sound damping without requiring excessive material quantities that would increase weight and mechanical stress.
Solution Approach 2:
The patent uses composite construction combining insulation material with structural elements like face sheets and seals. This composite approach provides acoustic benefits through the interaction of different materials while distributing weight across the entire assembly, reducing the stress concentration on the lifting mechanism compared to adding单一 heavy materials.
3Reliability
If effective acoustic insulation is implemented, then sound transmission is reduced, but complexity of seal structures and material combinations increases
Solution Approach 1:
The patent divides the acoustic insulation function into multiple segmented components: face sheets, core material, insulation material, backer sheets, and seals. Each segment performs a specific acoustic function (mass, damping, absorption, sealing), and their combination achieves superior overall acoustic performance. This segmentation allows for modular design and assembly while maintaining acoustic effectiveness.
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 configuration significantly improves acoustic performance by reducing sound transmission through the partition while maintaining operational efficiency and minimizing weight-related stress on lifting mechanisms, as demonstrated by enhanced STC and Rw ratings.
Implementation Method 1
an insulation material secured to the backer sheet facing the gap... the composite walls, side edge perimeter seals, the top and bottom horizontal seals and the joint obstructing members in combination provide improved acoustic performance
Implementation Method 2
each of the top and bottom horizontal seals including a hollow flexible bulb seal and a flexible skirt outwardly extending from the top and bottom most ones of the wall panels
Implementation Method 3
the face sheet is a perforated metal sheet defining a plurality of holes extending transversely therethrough, the perforated face sheet provide improved sound absorption
Data Source
Figure 1~3
Figure 4~7
Figure 8~9
AI summary
A vertically collapsible wall partition is comprised of a plurality of interconnected horizontal wall panels pivotally interconnected to one another and forming horizontal panel joints therebetween. The panels are operated by an overhead lifting mechanism. The wall panels each have opposed spaced-apart composite walls each having perimeter seals to provide acoustic sound damping. The composite walls are formed by a face sheet secured to a front face of a core material and a backer sheet is secured to core material with an insulation material secured to the back of the backer sheet. Top and bottom horizontal seals are secured to the wall partition top and bottom horizontal wall panels. The seals and joints of the horizontal wall panels are such as to exhibit improved acoustic performance.