Abstract
ABSTRACTThis article focuses on the coupled vibration characteristics of a spinning and axially moving composite thin-walled beam. Dynamic equations of the coupled vibration problem are built by Hamilton's principle. Galerkin's method is employed to solve the equations. The combined effects of spinning angular speeds and axial speeds on natural frequencies of the beam are studied specifically. Some interesting conclusions about the critical axial speed and critical spinning angular speed are proposed. Numerical simulations are performed to discuss the influences of spinning angular speeds, axial speeds, length- and thickness-to-radius ratios and fiber orientation angles on vibration characteristics of the beam.
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