A sustainable way to increase the performance of T&D applications
Cork solutions contribute to a more sustainable future and have been used for several years in industries such as aerospace, automotive or power industry..
Compressed Layer Damper
How can cork-based compressed layer damping (CLD) improve noise reduction and control vibration in transformers?
One effective method to achieve structural attenuation is through the use of the cork-based compressed layer damping solutions.Structural attenuation of noise and vibration is a crucial aspect of the design and maintenance of transformers, since it provides a means of converting mechanical energy from vibration into heat.
When implemented correctly, it can significantly reduce noise levels, improve operating conditions and extend equipment life. One effective method to achieve structural attenuation is through the use of the cork-based compressed layer damping solutions developed by Amorim Cork Composites.
The effectiveness of a compressed layer damping solution largely depends on its thickness in comparison with the thickness of the wall of the tank where it is installed. To ensure optimal performance, the thickness of the damper must be comparable to that of the tank wall. If the wall is too thin, the damping effect will be minimal or even non-existent. It is therefore necessary to carefully consider the design specifications to ensure that the damper provides an appropriate level of damping.
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Cork solutions for better performance
By choosing cork composite solutions instead of 100% rubber solutions, we not only contribute to a more environmentally friendly system, but also add the specific benefits of cork to the solution - such as natural resilience, flexibility and low lateral extrusion. By opting for Amorim T&D solutions, manufacturers can optimize transformer designs to meet stringent noise and vibration requirements, and thereby create quieter and more reliable electrical infrastructures for various applications.
In addition to its multiple technical advantages, cork is 100% natural and one of the world’s most versatile materials. Studies show that for every ton of cork produced, the cork oak forest sequesters up to 73 tons of CO2, and no trees are felled in the process.
In equipment that includes a shunt wall, this can be used as the compression element for compressed layer damping against the tank’s inner wall. This dual-function construction not only simplifies the design, it also improves the overall effectiveness of the damping solution.
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Effective implementation of a compressed layer damping solution
1. Identify all areas of the tank wall that have the greatest vibration/noise amplitude: This step is crucial in order to direct the damping efforts where they are most needed.
2. Define the area of the constrained-layer damping solution in function of the mechanical constraints, in at least 50 % of the wall area: This ensures that a significant area of the wall is covered, providing effective damping without undermining the tank’s structural integrity.
3. Design a clamping mechanism to compress the material nominally by 10 %: Adequate compression of the damping material is essential to maximize its effectiveness in absorbing vibration.
Compressed layer damping is an effective and practical solution for reducing noise and vibration in industrial environments. The use of high-quality materials such as Amorim VC2100 ensures that these damping solutions work effectively in demanding environments. When integrated with existing structural components, such as shunt walls, constrained-layer damping provides an efficient means of improving the durability and functionality of industrial machinery.
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