Impact Damping Mat Multi-Layer Segmentation for Rebound Control
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Solution Overview
Problem
Conventional noise mitigating mats are unsuitable for high-impact activities as they break down under significant forces or insufficiently reduce rebound and vibrations, necessitating a durable and adaptable impact damping solution for fitness and sports facilities.
Innovation Solution
A multi-layered system comprising a base layer with protuberances, a damping layer of polyether urethane, a load distribution layer, and an upper layer, secured together with an adhesive, providing a selected rebound characteristic and sound reduction characteristic, with specific dimensions and materials to manage high-impact forces and noise effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional noise mitigating mats are used, then sound reduction is provided, but they break down under significant forces from high-impact activities
Solution Approach 1:
The mat is divided into multiple functional layers: a base layer for structural support and durability, a damping layer for vibration absorption, and an upper layer for impact resistance. This segmentation allows each layer to specialize in specific functions, with the base layer providing durability while the damping layer provides sound reduction.
Solution Approach 2:
The mat uses composite construction combining different materials with complementary properties: a rigid base layer material for strength and durability, a viscoelastic damping layer material for vibration absorption and sound reduction, and a resilient upper layer material for impact resistance. This composite approach resolves the contradiction by combining materials that individually provide durability and sound reduction without compromising either property.
2Object-affected harmful factors
If thicker damping layers are used to reduce rebound and vibrations, then impact damping improves, but the mat becomes less durable under repetitive high-impact forces
Solution Approach 1:
The damping function is segmented from the structural support function into separate layers. The base layer provides structural strength to resist breakdown under repetitive impact, while the damping layer provides rebound and vibration reduction. This segmentation allows the damping layer to be thick enough for effective vibration absorption without compromising the overall structural integrity provided by the base layer.
Solution Approach 2:
Different regions of the mat have different properties optimized for their specific functions: the base layer has high strength and rigidity for structural support and durability, while the damping layer has viscoelastic properties for vibration absorption. This local differentiation of material properties allows the mat to simultaneously achieve high impact damping and resistance to breakdown under repetitive impact.
3Device complexity
If a single-layer mat design is used, then device complexity is reduced, but it cannot provide both durability and sufficient sound reduction
Solution Approach 1:
The mat is segmented into distinct layers, each with a specific function: the base layer for structural support, the damping layer for vibration absorption and sound reduction, and the upper layer for impact resistance. This segmentation enables the mat to provide both durability and sufficient sound reduction by assigning specific functions to specific layers, with each layer optimized for its designated purpose.
Solution Approach 2:
The multi-layer design uses composite materials with different properties: a rigid base layer material for structural integrity and durability, a viscoelastic damping layer material for vibration absorption and sound reduction. This composite material approach allows the mat to simultaneously achieve both durability and sufficient sound reduction, which would be difficult to accomplish with a single-layer design using a single material.
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 system achieves a coefficient of restitution no greater than 30% and a significant reduction in sound levels, mitigating the risks of injury and noise pollution from high-impact activities, while maintaining durability and adaptability.
Implementation Method 1
a damping layer overlying the base layer; the materials and dimensions of the base layer, the damping layer, the load distribution layer and the upper layer cooperate to provide a selected rebound characteristic and a selected sound reduction characteristic
Implementation Method 2
a base layer having a base surface with a plurality of protuberances; a load distribution layer overlying the damping layer
Implementation Method 3
all of the layers are secured together with an adhesive
Data Source
AI summary
An impact damping mat comprises a base layer having a base surface with a plurality of protuberances, a damping layer overlying the base layer, a load distribution layer overlying the damping layer and an upper layer overlying the load distribution layer and having a planar top surface. The materials and dimensions of the layers cooperate to provide a selected rebound characteristic and a selected sound reduction characteristic.