Identification of full-field dynamic modes using continuous displacement response estimated from vibrating edge video

•Identification of full-field modal parameters of structural components from video.•Hankel DMD of the acquired full-field spatiotemporal displacement response.•Experimental validation on three-story frame and cantilever beam using ERA.•H-DMD full-field dynamic modes of cantilever beam compare well w...

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Veröffentlicht in:	Journal of sound and vibration 2020-12, Vol.489, p.115657, Article 115657
Hauptverfasser:	Bhowmick, Sutanu, Nagarajaiah, Satish
Format:	Artikel
Sprache:	eng
Schlagworte:	Accelerometers Algorithms Aluminum Bridge failure Cables Cantilever beams Computer vision Displacement Free vibration Full-field spatiotemporal displacement response Hankel dynamic mode decomposition Image acquisition Image processing Lagrange coordinates Lagrangian motion Measurement Measurement methods Nonlinear systems Optical flow Optical flow (image analysis) Optical properties Parameter estimation Representations Sensors Spatial data Steel frames Structural members Tacoma narrows cable response Vibration Vibration analysis Vibration measurement Vibration meters Video Vision systems
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