pyOMA2: A Python module for conducting operational modal analysis

Abstract

Operational modal analysis (OMA) has garnered considerable attention from the engineering community in recent years and has established itself as the preferred method for estimating the modal properties of structures in structural health monitoring (SHM) applications, particularly in civil engineering. The key advantage of OMA over experimental modal analysis (EMA) is its ability to derive modal parameters solely from output measurements taken during the structure’s normal operation. This makes OMA a more practical and efficient approach, as opposed to the traditional EMA, which requires both input and output data.