Novel phonon crystal deceleration pavement structure
A phononic crystal and pavement structure technology, applied to roads, roads, special pavements, etc., can solve the problems of insufficient drag coefficient, large tire wear, high traffic accident rate, etc., to ensure stability, small tire wear, and improve comfort sexual effect
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[0033] Phononic crystals are artificial structural composite materials with periodic modulation of bulk elastic modulus and mass density. It is composed of background materials with large impedance mismatch and periodic units. Due to periodic Bragg scattering and local monomer Mie scattering, after the elastic wave is scattered by a periodic medium, the elastic wave of certain frequencies will decay exponentially due to destructive interference and cannot propagate in the system, so a band gap is formed on the frequency spectrum, usually called the phonon frequency band Gap. According to the basic properties of the band gap of the phononic crystal - when the frequency of the sound wave (elastic wave) is within the forbidden band range, the sound wave (elastic wave) and vibration are not allowed to pass through. According to these properties, a kind of Vibration isolation and energy dissipation materials based on this new theory.
[0034] Such as Figure 1-3 As shown, this em...
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