Numerical modeling of the coupled thermoelectromechanical behavior of structures with piezoelectric actuators under harmonic loading Part One: Formulation of the Problem of Forced Oscillations of a Viscoelastic Piezoelectric Actuator
DOI:
https://doi.org/10.31548/energiya4(86).2026.090Keywords:
dissipative heating, stress-strain state of the structure, piezoelectric actuators, harmonic loading, finite element method, thermoelectromechanical behavior, amplitude-frequency characteristicsAbstract
This paper presents the results of numerical modeling of the coupled thermoelectromechanical behavior of structures with piezoelectric actuators under harmonic loading. The relevance of the study is determined by the necessity for a comprehensive analysis of the stress-strain state, amplitude-frequency characteristics, and electromechanical parameters of structures with piezoactive layers under forced vibrations. The aim of the study is to investigate the specific features of applying numerical modeling and the finite element method to determine the stress-strain state, amplitude-frequency characteristics, electric potential distribution, and thermal behavior of structures with piezoelectric actuators. The study employs a finite element approach to solve a coupled problem of forced electromechanical vibrations and transient heat conduction, taking into account an internal heat source caused by energy dissipation. An analysis of the influence of mechanical boundary conditions, loading regimes, and geometric parameters on amplitude-frequency characteristics, stress and displacement distribution, electric potential, and temperature field of the structure was carried out. The obtained results confirm the effectiveness of modern numerical methods for comprehensive investigation of the coupled thermoelectromechanical behavior of structures with piezoelectric actuators and for determining critical operating regimes
Recieved: 27.06.2025. Recieved: 15.08.2026. Accepted: 20.08.2026
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