Comparison of Modal Parameters of a Square Steel Plate Using Finite Element Method and Operational Modal Analysis

In engineering domains, modal analysis is a field that studied extensively with the goal of better characterizingcomponents or structures. Themodal produces parameters, which are essential properties system can be employed for damage identification, vibration analysis, and structural health monitoring. Plated element’s relevance in variousapplications makes it an intriguing study subject. thisresearch, was performed on square steel plate free ends condition. This work aimedto provide complete anatomical description this complex boundary condition its implications parameters. Before comparing parameters experimental data, primary using finite element (FE)method. Then conducted under operational setup (OMA).As results, six natural frequencies retrieved compared amongst two methods, recording maximum 6% percentage difference from readings. implied close values estimated between methods used. For mode shapes, ninemodes identified FE method discussed according to established studies, while threesimilarly modes successfully recognized by OMA.