Connection Module for Noise Shielding Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing acoustic noise shielding technologies are costly, heavy, and require expensive materials, limiting their efficiency and scalability in industrial applications.
Innovation Solution
The development of a connection module for acoustic shielding devices using metamaterials, which comprises a base element and a suspended mass element connected by injection-moldable components, allowing for simpler and more cost-effective industrial processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional acoustic insulation panels are made with thicker and heavier materials, then sound-insulating power is improved, but weight and cost increase
Solution Approach 1:
The panel is divided into multiple layers with alternating stiff and elastic layers, each layer serving a specific acoustic function. This segmentation allows the system to achieve high sound-insulating power through the interaction of multiple lightweight layers rather than relying on a single thick heavy layer.
Solution Approach 2:
The invention uses composite structures combining materials with different acoustic properties (stiff and elastic layers) to create a multilayer panel system. This composite approach enables achieving superior acoustic performance with reduced weight compared to traditional single-material panels.
2Reliability
If expensive materials are used for traditional acoustic panels, then sound-insulating power is improved, but cost increases
Solution Approach 1:
The invention changes the acoustic parameters by using alternating stiff and elastic layers with optimized thickness ratios, rather than relying on expensive dense materials. This parameter optimization allows achieving high transmission loss with cost-effective materials.
Solution Approach 2:
By combining inexpensive stiff and elastic materials in a multilayer configuration, the system achieves acoustic performance comparable to or exceeding expensive traditional materials, while significantly reducing material costs.
3Weight of moving object
If metamaterials are used to reduce weight and thickness, then manufacturing complexity increases
Solution Approach 1:
The metamaterial panel is segmented into repeating unit cells with specific geometric configurations. Each unit cell contains stiff and elastic elements arranged in a pattern that provides acoustic functionality, allowing the complex metamaterial behavior to be achieved through simple repeating geometric motifs rather than complex material compositions.
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
This solution enables the creation of high-performance acoustic shielding devices with reduced thickness and weight, using eco-sustainable materials like regenerated PVC, while maintaining optimal sound-insulating power.
Implementation Method 1
The connection module comprises a lower body, an upper body, and elastic springs connecting the lower body and the upper body
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
In a noise shielding device (100), two parallel panels (110) are connected to each other by means of a plurality of connection modules (1). Each module (1) can be made by injection moulding, and has a base element (2) and a suspended mass element (3), connected to the two panels (110). The perimeter shape of the edge (33) of the suspended mass element (3), viewed in a projection along the thickness direction (X-X), is internal to the internal shape of an opening (23) of the base element (2). Leg-shaped connection elements (5) connect the base element (2) and the suspended mass element (3).