Constrained Layer Damping (CLD) is a system used for the suppression of vibrations. It is made of two sheets that are rigid but have poor damping properties. A viscoelastic or other damping material is placed between them. On vibration of the surface, the vibration is trapped between the two sheets and degenerated in the constrained layer as sheer energy. Vibration damping materials are widely used in automotive applications to dampen the vibration and sounds of road noise and the engine. Particle damping is used as a substitute to CLD due to its high efficiency and low costs.
The automotive industry constantly aims at reducing vehicle weight while striving to improve the noise, vibration, and harshness performance. This results in the need for improved vehicle acoustic performance with lightweight acoustic materials, treatments, and components. CLD provides an efficient technique to subdue throbbing and sound in these structures. It comprises viscoelastic material layers with high stiffness, which are able to dissipate vibratory energy in the structure through sheer deformation of the viscoelastic layer. This is a major driver for the growth of the constrained layer damping market.
Constrained Layer Damping Market Taxonomy
The global constrained layer damping market is segmented on the basis of applications as:
The global constrained layer damping market is segmented on the basis of material as:
Most automobiles use vinyl, polyurethane, and butyl materials. They can be used as coatings or sealants and to produce products that take the form of sheets, foam, and tiles. It is essential that the damping material used has a strong bond to the required surface to provide extreme vibration reduction. CLD reduces interior noise and vibration by separating and absorbing noise vibrations, which are produced by the engine, suspension, and tires, which are the major sources of noise and vibrations. On the basis of application, CLD is used on a large scale in the production of body structures. This is due to the use of body structures in a variety of applications such as roof panels, door panels, floor panels, and hood panels which forms the important components of an automobile.
Constrained Layer Damping Market Outlook
Constrained Layer Damping Market Players
Some of the major players identified across the value chain of constrained layer damping market include Autoneum, 3M, Nitto, megasorber, VIbratek, Pyrotek, and Roush among others.
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