Coupled Newmark beta technique and GDQ method for energy harvesting and vibration control of the piezoelectric MEMS/NEMS subjected to a blast load

Abstract

The controlled vibration and energy harvesting from a sandwich nanobeam, including two piezoelectric layers and a nanocomposite core, is investigated with the aid of nonlocal strain gradient theory. The nanobeam system is placed on an elastic substrate and under shockwave. The core layer is made of a reinforced composite made of a matrix polymer and carbon nanotubes (CNTs) along with carbon fibers (CF). The formulations along with end conditions are attained via Hamilton's principle and solved by the generalized differential quadrature method (GDQM) coupled with the Newmark beta method. Additionally, the vibration is controlled with two differential and integral gains. The impact of parameters such as elastic foundation, control gains, nonlocal factors, and parameters affecting the core material on forced vibration as well as energy harvesting is explored in detail. The current results are validated utilizing other publications. This work can be a basis for future studies on energy harvesting and controlled vibration on small scales.