Sound Control Mat Polymer Monofilaments Impact Noise
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Solution Overview
Problem
Existing flooring systems fail to effectively reduce impact noise and vibrations, leading to increased sound levels in rooms above and below the floor assembly.
Innovation Solution
A sound control mat comprising a resilient layer of extruded polymer monofilaments with a repeating pattern of peaks and valleys, heat welded to form a matrix, and a fiberglass scrim overlay, which attenuates impact forces by creating a sound break between flooring layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a sound control mat with resilient layer and fiberglass scrim is used, then sound attenuation is improved, but device complexity increases
Solution Approach 1:
The sound control mat combines a resilient polymer layer with a fiberglass scrim layer bonded together through heat welding. This composite structure integrates the vibration-absorbing properties of the resilient material with the reinforcement and dimensional stability of the fiberglass scrim, achieving effective sound attenuation while maintaining a relatively simple single-unit installation process.
2Strength
If the resilient layer is heat welded to the fiberglass scrim, then strength and stability are improved, but manufacturing precision requirements increase
Solution Approach 1:
The heat welding process utilizes controlled thermal parameters to bond the resilient layer and fiberglass scrim. By adjusting temperature, pressure, and dwell time parameters, the process achieves strong bonding between layers while accommodating natural variations in material properties, thereby maintaining manufacturing feasibility without requiring extreme precision.
3Object-affected harmful factors
If the resilient layer has a repeating wave pattern, then sound attenuation is improved, but manufacturing complexity increases
Solution Approach 1:
The resilient layer is formed with a repeating wave pattern featuring curved peaks and valleys rather than flat surfaces. This curvature geometry provides mechanical compliance and vibration absorption capabilities, allowing the layer to deform and dissipate impact energy effectively while maintaining a regular, manufacturable pattern through extrusion or molding processes.
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 mat significantly reduces the transmission of vibrational impact to the sub-flooring layer, lowering sound levels in occupied rooms through its resilient and reinforced construction, providing enhanced sound attenuation and strength.
Implementation Method 1
the polymer monofilaments being heat welded at junctions to form a matrix of tangled monofilaments
Implementation Method 2
the resilient layer being heat welded to the fiberglass scrim
Implementation Method 3
a resilient layer of extruded polymer monofilaments... comprising a plurality of waves forming a repeating pattern of peaks and valleys
Data Source
AI summary
A sound control mat, comprising: a resilient layer of extruded polymer monofilaments, and a fiberglass scrim adhered to the resilient layer. A floor assembly employing the foregoing sound control mat is disclosed.