MATLAB Rotor Nonlinear Finite Element Analysis

We have developed a finite element program specifically designed for rotor dynamics analysis, implemented entirely in MATLAB. The program features robust numerical algorithms including Newmark-beta integration for time-domain analysis and FFT-based techniques for frequency-domain analysis. It incorporates nonlinear bearing characteristics and gyroscopic effects through customized element formulations. Engineers can utilize this tool to accurately compute rotor stresses, deformations, and other critical dynamics parameters using advanced matrix manipulation and eigenvalue solvers. The modular code structure allows for easy customization and optimization through parameter adjustments in the main configuration files. Key functions include dynamic response calculation, Campbell diagram generation, and stability analysis modules. This powerful analytical tool plays a crucial role in rotor dynamics investigations, with capabilities for handling complex boundary conditions and nonlinear system behaviors through iterative solution methods.