Titlebook: Special Topics in Structural Dynamics & Experimental Techniques, Volume 5; Proceedings of the 4 Matt Allen,Sheyda Davaria,R. Benjamin Davis

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Modal Testing with Piezoelectric Stack Actuators, mechanism for modal and vibration testing. Due to their compact nature, they are especially suitable for applications where typical electrodynamic shakers may not be physically feasible, e.g., on small-scale centrifuge/vibration (vibrafuge) testbeds. As such, this work details an approach to extrac

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Generative Adversarial Networks for Labelled Vibration Data Generation, significant for the assessment and evaluation of engineering structures. Machine Learning (ML) and Deep Learning (DL) algorithms have been in use for structural damage diagnostics of civil structures in the last couple of decades. While collecting vibration data from civil structures is a challengi

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Investigation of Using Log-Spectrum Averaging (Cepstral Averaging) for Blind Reconstruction of an Umating the unknown impact loading profile (ILP) based on response vibrations is a challenging problem. If the impact location is also unknown, traditional inverse problem approaches (i.e., deconvolution) cannot reconstruct the ILP. This problem is particularly complex when inferring someone’s footst

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Vibration Mitigation of Bladed Structures Using Piezoelectric Digital Vibration Absorbers,y as actuators and sensors to mitigate the vibrations of their host. This can be achieved by connecting a transducer to a digital vibration absorber composed of a voltage sensor, a digital processing unit and a current injector. The digital vibration absorber thereby emulates a piezoelectric shunt.

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An Open-Source Automatic Modal Hammer Suitable for Studying Nonlinear Dynamical Systems, such as undergraduate labs or in emerging nations. The cost of a commercially available automatic modal hammer, which typically costs more than USD 10,000, is the primary reason for the technology’s limited adoption. An inexpensive, automatic modal hammer could thus be useful in educational labs fo

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Crack Diagnosis and Prognosis of Miter Gates Based on a Global-Local Model and Image Observations,nosis and prognosis of miter gate. To fully capture the localized effect of the crack, a global-local coupled finite element (FE) model is first created. An iterative global-local (IGL) algorithm is then developed to provide increased accuracy over sub-modelling at the expense of increased computati