Framework Studs With Integrated Air-Blade Decoupling
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Solution Overview
Problem
Existing metal framework studs for acoustic insulation systems face a trade-off between mechanical resistance and sound insulation, with increased stiffness leading to decreased sound insulation and complex, energy-intensive manufacturing processes that produce greenhouse gases.
Innovation Solution
A stud design featuring walls with an air blade between them, allowing for acoustic wave dissipation and improved insulation while maintaining mechanical resistance, using materials like wood or organic polymers to reduce metal usage and greenhouse gas emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the stiffness of the stud is increased to improve mechanical resistance, then the mechanical resistance is improved, but the sound insulation deteriorates
Solution Approach 1:
The stud is divided into two separate walls that are spaced apart from each other, creating an air blade between them. This segmentation allows the stud to maintain structural integrity while introducing acoustic decoupling, as the air gap prevents direct transmission of acoustic waves between the two walls.
Solution Approach 2:
An air blade is introduced as an intermediary element between the two walls of the stud. This air gap acts as a mediator that decouples acoustic waves, preventing their transmission from one wall to the other while still allowing the stud to provide mechanical support. The air blade serves as a passive damping element that absorbs acoustic energy.
2Strength
If a metal profile is used to ensure high stiffness and mechanical resistance, then the mechanical resistance is improved, but the environmental impact worsens due to energy consumption and greenhouse gas emissions
Solution Approach 1:
The invention changes the material parameter from metal to wood or organic polymer, fundamentally altering the environmental characteristics of the stud. This material substitution maintains the structural functionality while eliminating the harmful environmental effects associated with metal production, such as high energy consumption and greenhouse gas emissions.
Solution Approach 2:
The stud is constructed using composite materials, specifically wood or organic polymer, which provide sufficient mechanical resistance without the environmental drawbacks of metal. The use of natural or bio-based materials reduces the carbon footprint and energy consumption associated with manufacturing and disposal.
3Object-affected harmful factors
If separate parts are used with bonding elements to achieve acoustic decoupling, then the sound insulation is improved, but the manufacturing complexity increases
Solution Approach 1:
The two walls of the stud are designed as integrated components that form a single structural unit, eliminating the need for separate bonding elements. The air blade is built into the stud structure itself, simplifying the manufacturing process while maintaining acoustic decoupling functionality. This merging of components reduces the number of assembly steps and simplifies production.
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 stud design enhances acoustic insulation and mechanical resistance while reducing the environmental impact by using non-metallic materials, achieving sound reduction comparable to metal frames with lower energy consumption and emissions.
Implementation Method 1
for deformations of low amplitude, such as deformations generated by an acoustic wave, the energy of the incident acoustic wave is dissipated by the wall of the stud which is free to move relative to the core and the acoustic wave is damped
Data Source
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AI summary
Stud (10) for a framework for an acoustic insulation system, the stud (10) extending in a main direction (X) and having a length (L) in the main direction (X), the stud (10) comprising two walls (14), at least one wall (14) being configured to be fixedly mounted on a facing board (24), an air blade (16) being disposed between the two walls (14) on at least 20% of the length (L), preferably at least 50% of the length (L), or preferably at least 80% of the length (L) and a maximum of 99% of the length (L), preferably a maximum of 95% of the length (L), the stud (10) comprising a stud head (18) and a stud foot (20), the stud (10) being free of air blade in the stud head (18) and in the stud foot (20). Method of manufacturing the stud and assembly of a stud and a facing board.