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- W1989032441 abstract "Axial–torsional vibrations of rotating pretwisted thin-walled composite box beams exhibiting primary and secondary warping are investigated. Considering the nonlinear strain–displacement relations, the coupled nonlinear axial–torsional equations of motion are derived using Hamilton's principle. Ignoring the axial inertia term leads to differential equation of motion in terms of elastic torsion in the case of axially immovable beams. Centrifugal load in the presence of material anisotropy and pretwist angle leads to an induced static torque. The nonlinear equation should be linearized about the corresponding equilibrium state to obtain the linear differential equation of motion. Extended Galerkin's method is utilized to achieve the proper eigenvalue problem. The results obtained in this paper seek to clarify the individual and collective effects of axial loading, pretwist, stagger and fiber angles on the torsional behavior of the non-uniform thin-walled composite blades. The results are compared to available analytical and experimental results in the literature which reveals excellent agreements. The outcomes of this study are expected to offer better predictions of the dynamic behavior of this kind of structures in general, and in design of rotor blades of turbo-machinery, in particular." @default.
- W1989032441 created "2016-06-24" @default.
- W1989032441 creator A5000261622 @default.
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- W1989032441 date "2014-03-01" @default.
- W1989032441 modified "2023-10-14" @default.
- W1989032441 title "Axial–torsional vibrations of rotating pretwisted thin walled composite beams" @default.
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- W1989032441 doi "https://doi.org/10.1016/j.ijmecsci.2013.12.018" @default.
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