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DIC-Based Operational Modal Analysis of Bridges [PDF]
Advances in Civil Engineering, 2021 A new method has been proposed to identify the natural frequencies and mode shapes of a bridge model, in which the digital image correlation (DIC) technique is used to track the dynamic displacement.
Gongfa Chen +4 more
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Automated Operational Modal Analysis for Rotating Machinery Based on Clustering Techniques [PDF]
Sensors, 2023 Many parameters can be used to express a machine’s condition and to track its evolution through time, such as modal parameters extracted from vibration signals.
Nathali Rolon Dreher +2 more
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Sparse Component Analysis Using Time-Frequency Representations for Operational Modal Analysis [PDF]
Sensors, 2015 Sparse component analysis (SCA) has been widely used for blind source separation(BSS) for many years. Recently, SCA has been applied to operational modal analysis (OMA), which is also known as output-only modal identification.
Shaoqian Qin, Jie Guo, Changan Zhu
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Stretching Method-Based Operational Modal Analysis of An Old Masonry Lighthouse [PDF]
Sensors, 2019 We present in this paper a structural health monitoring study of the Egyptian lighthouse of Rethymnon in Crete, Greece. Using structural vibration data collected on a limited number of sensors during a 3-month period, we illustrate the potential of the ...
Emmanouil Daskalakis +4 more
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Some Elements of Operational Modal Analysis [PDF]
Shock and Vibration, 2014 This paper gives an overview of the main components of operational modal analysis (OMA) and can serve as a tutorial for research oriented OMA applications.
Rune Brincker
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Identification of Historical Veziragasi Aqueduct Using the Operational Modal Analysis [PDF]
The Scientific World Journal, 2014 This paper describes the results of a model updating study conducted on a historical aqueduct, called Veziragasi, in Turkey. The output-only modal identification results obtained from ambient vibration measurements of the structure were used to update a ...
E. Ercan, A. Nuhoglu
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Operational Modal Analysis of the Cablestayed Footbridge
Civil and Environmental Engineering, 2017 Modern architecture leads to design subtle bridge structures that are more sensitive to increased dynamic loading than the massive ones. This phenomenon can be especially observed on lightweight steel structures such as suspended footbridges. As a result,
Kortiš Ján +4 more
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Intelligent automatic operational modal analysis
Mechanical Systems and Signal Processing, 2023 Operational modal analysis methods have been proven especially useful to identify existing structures and infrastructures under serviceability conditions. However, the installation of sensing systems for monitoring continuously an ever larger number of existing constructions has motivated significant efforts towards the automation of the available ...
Marco Martino Rosso +2 more
exaly +4 more sources
Numerical Assessment of Building Vibration Techniques Using Laboratory Models [PDF]
Port Said Engineering Research Journal, 2022 Experimental Modal Analysis (EMA) is one of the most attractive engineering fields nowadays, which specifies in the studies of modal parameters of existing small buildings under forced vibrations.
moataz Elrayes +2 more
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Uncertainty quantification of the Modal Assurance Criterion in operational modal analysis [PDF]
Mechanical Systems and Signal Processing, 2021 The Modal Assurance Criterion (MAC) is a modal indicator designed to decide whether the mode shapes used in its computation are corresponding to the same mode. During structural monitoring, it can be applied to evaluate changes in the mode shapes. When the mode shapes are estimated from measurement data, the MAC inherits their statistical properties ...
Gres, Szymon +2 more
openaire +3 more sources