Acoustic Wall Core with Segmented Mounting Faces
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Solution Overview
Problem
Conventional drywall panels face a trade-off between mechanical resistance and acoustic insulation, as the stiffness required for structural integrity limits the ability to effectively attenuate acoustic waves.
Innovation Solution
The proposed acoustic insulation wall system features a core with a network of mounting faces on either side, where each mounting face is fixedly mounted to one plate and free relative to the other, allowing for energy dissipation of acoustic waves while maintaining sufficient mechanical rigidity through strategic placement and distance between mounting faces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the stiffness of the stud is increased to meet mechanical resistance criteria, then structural rigidity is improved, but acoustic insulation deteriorates due to wave transmission without decoupling
Solution Approach 1:
The stud is segmented into multiple independent resilient elements (springs) distributed across its structure. This segmentation allows each element to independently absorb and dissipate acoustic energy while collectively providing the necessary mechanical support, resolving the contradiction between stiffness and acoustic insulation.
Solution Approach 2:
The stud's mechanical properties are changed by replacing a solid rigid structure with an array of resilient elements having specific stiffness and damping characteristics. This parameter change enables the stud to exhibit both structural rigidity and acoustic decoupling properties simultaneously.
2Object-affected harmful factors
If the stiffness of the stud is reduced to increase acoustic insulation, then sound wave decoupling is improved, but mechanical resistance deteriorates and fails to meet building construction criteria
Solution Approach 1:
By segmenting the stud into multiple resilient elements, the system achieves acoustic insulation through distributed compliance while maintaining overall structural integrity through the collective support of all elements, eliminating the need to sacrifice mechanical resistance.
Solution Approach 2:
The stud functions as a composite structure combining rigid support elements with resilient damping elements, creating a hybrid system that delivers both mechanical strength and acoustic insulation performance.
3Stability of the object's composition
If mounting faces are fixedly mounted to both plates for structural stability, then mechanical stability is improved, but acoustic attenuation deteriorates due to lack of movement for energy dissipation
Solution Approach 1:
Different mounting faces are assigned different fixation qualities: some faces are fixedly mounted to provide local structural stability, while other faces are left free to move for acoustic energy dissipation. This local differentiation resolves the contradiction between stability and attenuation.
Solution Approach 2:
The mounting faces are designed with dynamic characteristics, allowing them to transition between fixed and free states. This dynamic behavior enables the system to maintain structural stability while permitting the plate movements necessary for acoustic attenuation.
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 enhances acoustic attenuation without compromising structural rigidity, particularly in the frequency range of 80 Hz to 5000 Hz, by allowing small amplitude movements of the plates to dissipate wave energy, thereby improving sound insulation compared to traditional systems.
Implementation Method 1
allowing small amplitude movements of the plates to dissipate wave energy
Implementation Method 2
dissipate wave energy
Data Source
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AI summary
The present invention relates to a sound insulation wall system, comprising a core extending along a principal plane, a first facing plate and a planar wall structure, the first plate and the structure being arranged on either side of the core and each extending in a plane parallel to the principal plane, the core having a first face and a second face arranged on either side of the principal plane, the first face of the core comprising a network formed by a repetition of a pattern comprising a mounting face fixed to the first plate and a mounting face adapted to butt against the first plate and free with respect to the first plate.