Operational modal monitoring of ancient structures using wireless technology

Rafael Aguilar, Luis F. Ramos, Paulo B. Lourenço, Ricardo Severino, Ricardo Gomes, Paulo Gandra, Mario Alves, Eduardo Tovar

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

2 Citas (Scopus)


Operational Modal Analysis is currently applied in structural dynamic monitoring studies using conventional wired based sensors and data acquisition platforms. This approach, however, becomes inadequate in cases where the tests are performed in ancient structures with esthetic concerns or in others, where the use of wires greatly impacts the monitoring system cost and creates difficulties in the maintenance and deployment of data acquisition platforms. In these cases, the use of sensor platforms based on wireless and MEMS would clearly benefit these applications. This work presents a first attempt to apply this wireless technology to the structural monitoring of historical masonry constructions in the context of operational modal analysis. Commercial WSN platforms were used to study one laboratory specimen and one of the structural elements of a XV century building in Portugal. Results showed that in comparison to the conventional wired sensors, wireless platforms have poor performance in respect to the acceleration time series recorded and the detection of modal shapes. However, for frequency detection issues, reliable results were obtained, especially when random excitation was used as noise source.

Idioma originalInglés
Título de la publicación alojadaDynamics of Civil Structures - Proceedings of the 28th IMAC, A Conference on Structural Dynamics, 2010
EditorialSpringer New York LLC
Número de páginas10
ISBN (versión impresa)9781441998309
EstadoPublicada - 2011

Serie de la publicación

NombreConference Proceedings of the Society for Experimental Mechanics Series
ISSN (versión impresa)2191-5644
ISSN (versión digital)2191-5652


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