Completely automated modal analysis procedure based on the combination of different OMA methods

Francesco Ripamonti; Alberto Bussini; Ferruccio Resta

doi:10.1117/12.2296493

27 March 2018 Completely automated modal analysis procedure based on the combination of different OMA methods

Francesco Ripamonti, Alberto Bussini, Ferruccio Resta

Proceedings Volume 10599, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XII; 1059926 (2018) https://doi.org/10.1117/12.2296493
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

In this work a completely automated output-only Modal Analysis procedure is presented and all its benefits are listed. Based on the merging of different Operational Modal Analysis methods and a statistical approach, the identification process has been improved becoming more robust and giving as results only the real natural frequencies, damping ratios and mode shapes of the system. The effect of the temperature can be taken into account as well, leading to the creation of a better tool for automated Structural Health Monitoring. The algorithm has been developed and tested on a numerical model of a scaled three-story steel building present in the laboratories of Politecnico di Milano.

Citation Download Citation

Francesco Ripamonti, Alberto Bussini, and Ferruccio Resta "Completely automated modal analysis procedure based on the combination of different OMA methods", Proc. SPIE 10599, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XII, 1059926 (27 March 2018); https://doi.org/10.1117/12.2296493

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