Multilayer Viscoelastic Tape for Thin Vibration Damping
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Solution Overview
Problem
Existing vibration damping adhesive tapes are typically thick and heavy, which can compromise their effectiveness in reducing vibration while adding unnecessary weight to systems.
Innovation Solution
The development of a thin and lightweight vibration damping tape comprising a substrate with two layers of viscoelastic damping material on either face, or between two substrates, allowing for efficient vibration damping without increasing system weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional vibration damping adhesive tapes are used to achieve desired vibration damping characteristics, then vibration damping performance is improved, but the tape thickness and system weight significantly increase
Solution Approach 1:
The damping system is segmented into multiple thin layers (substrate layer, first viscoelastic layer, second viscoelastic layer) rather than using a single thick layer. This segmentation allows achieving the required damping performance through the combined effect of multiple layers, significantly reducing the overall thickness and weight while maintaining effectiveness
Solution Approach 2:
The invention uses a composite structure combining a substrate material with viscoelastic damping layers. This composite material approach allows the system to achieve both mechanical strength (from the substrate) and vibration damping (from the viscoelastic layers) in a thin, lightweight configuration, resolving the contradiction between performance and weight
2Reliability
If traditional vibration damping adhesive tapes are used to achieve desired vibration damping characteristics, then vibration damping performance is improved, but the tape thickness significantly increases
Solution Approach 1:
The damping system is segmented into multiple thin layers (substrate layer, first viscoelastic layer, second viscoelastic layer) rather than using a single thick layer. This segmentation allows achieving the required damping performance through the combined effect of multiple layers, significantly reducing the overall thickness while maintaining effectiveness
Solution Approach 2:
The invention transitions from a single-dimensional thick damping layer to a multi-layered thin-film structure, effectively using the layering dimension to achieve damping performance without increasing thickness in the primary direction
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 tape achieves high vibration damping efficiency with a reduced thickness and weight, effectively forming a constrained layer system that enhances damping performance across a wide temperature range.
Implementation Method 1
a first layer of viscoelastic damping material at least partially disposed on the first face of the substrate. The tape additionally comprises a second layer of viscoelastic damping material at least partially disposed on the second face of the substrate
Implementation Method 2
The tape achieves high vibration damping efficiency with a reduced thickness and weight, effectively forming a constrained layer system that enhances damping performance across a wide temperature range
Data Source
AI summary
Vibration damping viscoelastic damping material laminates are described. The tapes generally include at least two viscoelastic damping material layers and at least one substrate. The tapes may optionally include one or more release liners. Also described are constrained layer systems formed by adhering the tape to a first substrate and/or second substrate undergoing vibration.