Dynamic analysis of complex rotating structures subjected to thermal loads through CUF-based high-fidelity finite beam elements

This work intends to present dynamic coupled and uncoupled thermoelastic formulations for carrying out vibration and transient analyses of non-rotating and rotating complex structures subjected to mechanical and thermal loadings. The study has been performed using the well-established Carrera Unified Formulation (CUF) able to derive variable-fidelity kinematics one-dimensional (1D) beam models. For the uncoupled thermoelastic analysis, the governing equations are written in a total Lagrangian scenario and solved with an opportune Newton-Raphson method and a suitable iterative dynamic algorithm. Various structures were analyzed in order to show this numerical tool's potentialities. The results document the good accuracy and reliability of the proposed approach to study complex rotor systems.