TPV Damping Extrusion Geometry for Pipe Clip Noise Isolation
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Solution Overview
Problem
Existing damping solutions for securing piping and conduits to structures often compress insulation materials, reducing their sound absorption effectiveness, and require customization for different clip and bracket sizes, limiting their versatility.
Innovation Solution
The development of damping extrusions with concave protrusions and a flexible thermoplastic vulcanizate material that create and maintain air spaces between the extrusion and the piping or clip, resisting compression and enhancing sound absorption across various sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If insulation is clamped firmly between the clip or bracket and the piping, then the insulation is securely retained, but the insulation is compressed which significantly diminishes its ability to absorb sound
Solution Approach 1:
The damping extrusion incorporates a porous core material that can absorb and dampen vibrations while maintaining its sound absorption capabilities. The porous structure allows the material to deform without complete compression, preserving air pockets for acoustic attenuation while still providing secure retention when clamped
Solution Approach 2:
The damping extrusion uses a composite structure combining a porous core with an outer shell or coating. This composite design allows the inner porous material to absorb sound and vibrations while the outer layer provides structural integrity and resistance to compression, enabling the extrusion to maintain both retention strength and sound absorption effectiveness
2Manufacturing precision
If the length of insulation is tailored to the particular size and shape of clip, then the fit is optimized, but this is problematic where a large number of different sizes and shapes of clip or bracket are produced
Solution Approach 1:
The damping extrusion is designed with a universal configuration that can accommodate multiple sizes and shapes of clips and brackets. The extrusion's geometry and material properties allow it to function effectively across a range of applications without requiring custom tailoring, making it compatible with various pipe diameters and clip types while maintaining optimal fit and sound absorption performance
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 damping extrusions effectively reduce sound transmission by maintaining air spaces, providing superior noise attenuation and versatility across different clip and piping configurations, outperforming conventional solutions in isolation performance.
Implementation Method 1
the ability of the rubber insulation to absorb sound is significantly diminished
Implementation Method 2
flexible damping extrusions... made from a flexible thermoplastic vulcanizate material that create and maintain air spaces
Data Source
AI summary
A damping extrusion, preferably made from a thermoplastic vulcanizate (TPV), for use with a clip for piping/tubing/ducting comprises an elongate body having a side wall at, or towards each side, an upper surface that, in use, faces the clip, and a lower surface that, in use, faces the piping/tubing/ducting. The damping extrusion comprises a first protrusion extending from the lower surface at, or towards each side of the elongate body and a second protrusion extending from the lower surface at, or about a centre of the elongate body. An inner wall of at least one of the first protrusions is concave and at least one or both of the side walls of the elongate body has a concave recess.