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In this paper a finite element model of a composite structure and its research are presented. The
tested object consists of a glass-epoxy composite beam with embedded a Macro Fiber Composite
(MFC) piezoelectric actuator controlled by means of the Positive Position Feedback (PPF). The numerical
model taking into account the above components is developed in commercial Abaqus software.
Properties of laminate beam layers are described using the layup-ply technique. However, the MFC
element is modeled as piezoelectric material and its voltage supply is applied as electric boundary conditions.
A special subroutine code of the PPF controller is developed, where the input is measured beam
response and the output is desired voltage signal calculated from control algorithm. During solving the
second order differential controller equation the fourth order Runge-Kutta method is engaged. The
numerical simulations were performed using implicit procedure. Since, the beam large vibrations are
analyzed, the nonlinear phenomenon so-called amplitude jump can be observed. The obtained system
responses allow to compare beam dynamics with and without controller activation. Finally, the PPF
controller effectiveness of composite beam large vibration suppression is determined. The research is
financed in the framework of the project Lublin University of Technology-Regional Excellence Initiative,
funded by the Polish Ministry of Science and Higher Education (contract no. 030/RID/2018/19).
