Structural vibration analysis and modal analysis based on EEMD

Modal parameters play an important role in the reliability and stability of various structures Specifically, modal analysis is an engineering method used in structural dynamics to obtain key modal parameters, including modal frequencies and modes. This provides researchers with a reliable basis for examining structural stability, identifying design flaws, and other aspects. In this paper, we propose an improved algorithm based on Ensemble Empirical Mode Decomposition (EEMD), referred to as the PSO-EEMD algorithm, and verify its effectiveness through simulation. The results indicate that the improved algorithm can significantly enhance the accuracy of decomposition, reduce errors, and provide more accurate modal analysis results.