Results 11 to 20 of about 139,154 (302)
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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Applied Sciences, 2023 An automated operational modal analysis (AOMA) method that considers the uncertainty in modal parameters is presented and data acquired from actual bridges are used to validate it.
Keunhee Cho, Jeong-Rae Cho
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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
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Operational Modal Analysis on Bridges: A Comprehensive Review
Infrastructures, 2023 Structural health monitoring systems have been employed throughout history to assess the structural responses of bridges to both natural and man-made hazards.
Hamed Hasani, Francesco Freddi
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Operational modal analysis of under-determined system based on Bayesian CP decomposition
Nihon Kikai Gakkai ronbunshu, 2021 Modal properties such as natural frequencies, modal shapes and damping ratio are useful to understand structural dynamics of mechanical systems. To use the modal properties for structural health monitoring, they need to be estimated under operational ...
Sunao TOMITA, Tomohiko JIMBO
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In-flight modal identification by operational modal analysis
Journal of the Brazilian Society of Mechanical Sciences and Engineering, 2023 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Elsa M. Cárdenas +3 more
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Structural Identification from Operational Modal Analysis: The Case of Steel Structures
Buildings, 2023 In the case of old existing structures where the cultural value is very high, structural health analyses and investigations would be better performed without damages or service interruptions. Thus, modal analysis aimed at identifying eigenfrequencies and
Flavio Stochino +5 more
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International Journal of Distributed Sensor Networks, 2020 A large number of smart devices make the Internet of Things world smarter. However, currently cloud computing cannot satisfy real-time requirements and fog computing is a promising technique for real-time processing.
Cheng Wang +4 more
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Uncertainties on modal parameters by operational modal analysis [PDF]
Mechanics & Industry, 2014 Lorsqu’on fait une analyse modale opérationnelle sur des structures en fonctionnement, sans connaître les forces de perturbation, ni le nombre de fréquences importantes qui excitent le système mécanique, on doit se poser la question sur la validité de l’estimation des paramètres modaux (notamment le taux d’amortissement) et sur la précision des ...
Vu, Viet-Hung, Thomas, Marc
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Multi-Variant Modal Analysis Approach for Large Industrial Machine
Energies, 2022 Power generation technologies are essential for modern economies. Modal Analysis (MA) is advanced but well-established method for monitoring of structural integrity of critical assets, including power ones.
Kajetan Dziedziech +3 more
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