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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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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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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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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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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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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Transmissibility-Based Operational Modal Analysis: Enhanced Stabilisation Diagrams [PDF]
Shock and Vibration, 2012 Recently it has been shown that also transmissibilities can be used to identify the modal parameters. This approach has several advantages: because of the deterministic character of the transmissibility functions, the estimated parameters are more ...
Gert De Sitter +2 more
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Operational Modal Analysis of Bridge Structures with Data from GNSS/Accelerometer Measurements [PDF]
Sensors, 2017 Real-time dynamic displacement and acceleration responses of the main span section of the Tianjin Fumin Bridge in China under ambient excitation were tested using a Global Navigation Satellite System (GNSS) dynamic deformation monitoring system and an ...
Chunbao Xiong, Huali Lu, Jinsong Zhu
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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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Operational modal analysis using symbolic regression for a nonlinear vibration system
Journal of Low Frequency Noise, Vibration and Active Control, 2021 The existence of nonlinearity is an inevitable frequent occurrence that should be considered to accurately identify the modal parameters of a vibration system using operational modal analysis.
Xuchu Jiang, Feng Jiang
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