The function of car sound insulation and damping board is to reduce noise and vibration. Damping refers to the characteristic of any vibration system in which the vibration amplitude gradually decreases due to external factors or the system itself, and the quantitative characterization of this characteristic. The physical meaning of damping is the attenuation of force
Or the energy dissipation of an object in motion, that is, stopping the object from continuing to move. Automotive soundproofing and shock absorber board is a widely used and efficient automotive soundproofing material, which belongs to viscoelastic materials and is generally tightly attached to the steel plate wall on the inner surface of the vehicle body.