Finite element analysis on active vibration control using lead zirconate titanate-Pt-based functionally graded piezoelectric material

摘要

The numerical simulations for active vibration control of the host structure using lead zirconate titanate-Pt-based functionally graded piezoelectric material are presented in this article. The material properties (both mechanical and electrical) of the lead zirconate titanate-Pt-based functionally graded piezoelectric material are graded in the thickness direction according to the volume fraction power law distribution. The finite element modeling using first-order shear deformation theory is implemented to predict static and dynamic responses of the vibrating structure. A constant negative velocity feedback controller is designed to provide closed-loop feedback control. Both static and dynamic controls of the host structure are numerically simulated to demonstrate the effectiveness of the proposed lead zirconate titanate-Pt-based functionally graded piezoelectric material. The numerical results show significant variation in sensing and actuating capability up to a certain volume fraction index (n).