Nonlinear viscoelastic dynamic responses of bi-graphene/piezoelectric laminated films under moving particles

171Figure The linear and nonlinear dynamic characteristics of first layer when three same particles pass, respectively, through different layers of BGP at the identical velocity, where the regions of Ⅰ, Ⅱ, Ⅲ represent the forced vibration parts of v = 25 m/s, v = 12.5 m/s, v = 5 m/s, respectively, the region Ⅳ represents the free vibration part, LS and NLS denote the linear solution and nonlinear solution, respectively, 3m = 6 × 10 − 10g, V = −0.01(V), G = 0.002, μ* = 0.05.v