This work is a contribution in the field of Operational Modal Analysis to identify the modal parameters of mechanical structures using only measured responses. The study deals with structural responses coupled with harmonic components amplitude and frequency modulated in a short range, a common combination for mechanical systems with engines and other rotating machines in operation. These harmo...

The Unified Matrix Polynomial Approach (UMPA) was developed to understand the basic similarities among various commercially used experimental modal analysis (EMA) algorithms like LSCE, ERA, PTD, PFD etc. It provided a common framework to develop most of these algorithms that have been developed in isolation, thus making it easier to understand and compare them. This paper extends the concept of...

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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. thisr...

Recent structural collapses of bridges and damaging occurred on deck and dampers of suspension bridges, are driving the development of monitoring techniques for the structural integrity assessment of primary lifelines. Structural Health Monitoring combines a variety of methods for observed dynamic systems response detection of different structural systems. Among others techniques, Operational M...

In the first International Operational Modal Analysis Conference it was shown for the first time how transmissibility measurements can be used to identify modal parameters. The main advantage of this new technique is that it is no longer necessary to make the assumption that the inputs to the structure are white noise. The unknown operational forces can be arbitrary (colored noise, swept sine, ...

The aim of structural health monitoring for civil structures is not only detection of sudden or progressive damages but also monitoring their performance under operational conditions or under some particular environmental issues such as earthquakes. Seismic protection of buildings at risk can be reached increasing the knowledge of the structural behavior of existing constructions. This circumst...