What is the function of damping sheets?

[EvanRose]

Damping sheets are used to reduce noise and vibration. Damping refers to the characteristic of any vibrating system where the amplitude of vibration gradually decreases due to external influences or inherent system properties, as well as the quantitative representation of this characteristic. The physical meaning of damping is the attenuation of force or the dissipation of energy during the movement of an object, effectively preventing further motion. Damping sheets are a widely used and highly efficient automotive soundproofing material, classified as viscoelastic materials, typically adhered to the inner surface of the vehicle's steel panels. Under normal circumstances, automotive damping sheets are made from polymer resin or rubber materials. Damping sheets made from asphalt can continuously emit unpleasant odors, leading to air pollution inside the vehicle and posing health risks to occupants.