Acoustic Damper Mounting Rail for Tile Cladding
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Solution Overview
Problem
Conventional mounting rails for external cladding or tiles exhibit poor sound insulating performance due to direct sound propagation from the tile carrier to the backing structure, which is exacerbated by the use of rigid metal materials, leading to noise amplification.
Innovation Solution
Incorporating an acoustic damper in the tile-support carrier, such as an obtusely angled bend or apertures, to impede direct sound propagation and dissipate vibrations, while maintaining structural rigidity to secure tiles in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If rigid metal materials are used for mounting rails, then structural rigidity is improved, but sound insulating performance deteriorates
Solution Approach 1:
The mounting rail system combines rigid metal components with acoustic damper materials (such as rubber, foam, or viscoelastic materials) to create a composite structure. The rigid metal parts provide structural strength and rigidity to support tiles, while the acoustic damper materials inserted within the metal structure absorb and dissipate sound vibrations, thereby improving sound insulating performance without sacrificing structural integrity
Solution Approach 2:
Acoustic dampers are strategically positioned at specific locations within the mounting rail structure where sound transmission is most problematic, such as at connection points between rail segments or at interfaces with the backing structure. This localized application of sound-absorbing materials allows the majority of the structure to remain rigid metal while targeted areas provide sound attenuation
2Object-affected harmful factors
If acoustic dampers are added to the tile-support carrier, then sound attenuation is improved, but device complexity increases
Solution Approach 1:
The acoustic damper is integrated into the tile-support carrier as a unified component rather than being added as a separate attachment. The damper is embedded within the carrier structure during manufacturing, combining the support function and sound attenuation function into a single integrated element, thereby minimizing additional complexity
Solution Approach 2:
The acoustic dampers are designed with optimized geometric parameters (size, shape, distribution) and material properties (density, damping coefficient) that can be adjusted during the extrusion or manufacturing process. This allows tuning of the sound attenuation performance without fundamentally changing the overall structure or requiring complex assembly procedures
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 acoustic damper effectively attenuates sound vibrations without compromising the structural integrity, providing improved noise reduction while preventing cracks in mortar infill material between tiles.
Implementation Method 1
The tile-support carrier comprises an acoustic damper between the tile support and the back-fixing rail
Data Source
AI summary
A mounting rail for mounting tiles to a backing system of a building wall structure comprises a tile support linked with a back-fixing rail via a tile-support carrier. The tile-support carrier comprises an acoustic damper between the tile support and the back-fixing rail. This impedes the transmission of acoustic energy from the tiles to the backing system, and so improves the acoustic insolation while the mechanical stiffness of the tile-support carrying arm is maintained. The acoustic damper may be provided in the form of one or more angled bends, apertures, an obtusely angled connection of the tile-support carrier to the back-fixing rail or a connection of the tile-support carrier at an upper or lower end of the back-fixing rail, or combinations of two or more of these features.