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Showing 1 to 8 of 8 for “"Vibration-based damage detection"”.
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Fe Modeling In Support Of Vibration Based Damage Detection In Bridges
Vibration based damage detection in bridges is examined with the objective of defining a relationship between substructure stiffness degradation and frequency and mode shape modulation induced by damage. The relationship is explored through finite element modeling of primarily an experimental …
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Application of vibration-based damage detection techniques to civil infrastructure : incorporating uncertainty quantification
… with an aim to identify research needs in vibration based damage detection techniques and the quantification of the uncertainty in these techniques. It was discovered that the literature lacked examples of the explicit propagation of measurement uncertainty through damage detection …
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Characterization of structural properties and dynamic behavior using distributed accelerometer networks and numerical modeling
Both vibration-based structural health monitoring methodologies and seismic performance analysis rely on estimates of the base-line dynamic behavior of a structure. A common method for making this estimate is through measuring structural motions using sensors deployed in the structure of interest. …
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Excitation sources for structural health monitoring of bridges
Vibration-based damage detection (VBDD) methods are structural health monitoring techniques that utilize changes to the dynamic characteristics of a structure (i.e. its natural frequencies, mode shapes, and damping properties) as indicators of damage. While conceptually simple, considerable …
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Towards Multiclass Damage Detection and Localization using Limited Vibration Measurements
Traditional vibration-based damage detection methods provide structural health information based on their measured data (i.e., acceleration and displacement response). Over the last few decades, various model-based and time-frequency methods have shown great promises for damage identification and …
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Advanced functional and sequential statistical time series methods for damage diagnosis in mechanical structures
… 30 years have witnessed major developments in vibration based damage detection and identification, also collectively referred to as damage diagnosis. Moreover, the past 10 years have seen a rapid increase in the amount of research related to Structural Health Monitoring (SHM) as quantified by …
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Automatic operational modal analysis: challenges and applications to historic structures and infrastructures
… interpretation of stabilization diagrams based on a damping ratio check and on modal complexity inspection. Finally, a clustering method for the identified modes and a modal tracking strategy is suggested and discussed. The whole procedure is validated with a one-month and a one-year set …
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A vibration-based bridge scour monitoring technique
… is relatively difficult to install and prone to damage from fast-flowing water and debris. One possible solution might be to use a vibration-based method to monitor scour indirectly, using changes in dynamic modal parameters (e.g. the natural frequency of vibration) captured by sensors mounted on …