Abstract The viscoelastic sandwich structure exhibits highly nonlinear dynamic characteristics, and minimal changes in signal caused by aging state alterations, thus posing a challenge for extracting its characteristics. A method is proposed features from structures using variational mode decomposition (VMD) permutation entropy (PE). First, the original response decomposed VMD to acquire severa...

Abstract In this article, we consider a viscoelastic plate equation with past history, nonlinear damping, and logarithmic nonlinearity. We prove explicit general decay rate results of the solution to history. Convex properties, inequalities, generalized Young’s inequality are mainly used estimate.