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Modal analysis of rotating tapered cantilevered Timoshenko beams undergoing in-plane vibration is investigated. The coupling effect of axial motion and transverse motion is considered. The Kane dynamic method is applied to deriving the governing eigenvalue equations. The displacement and rotational angle components are approximately described by the products of Chebyshev polynomials and corresponding boundary functions. Chebyshev polynomials guarantee the numerical robustness while the boundary functions guarantee the satisfaction of the geometric boundary conditions. The excellent convergence of the present solution is exhibited. The results are compared with those available in literature, good agreement is observed. The parametric studies on modal characteristics are presented in detail. The tuned rotational speed is examined and the eigenvalue loci veering phenomenon along with the corresponding mode shapes is investigated.
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Jianshi Fang
Ding Zhou
International Journal of Applied Mechanics
Nanjing University of Science and Technology
Nanjing Tech University
Nanjing Institute of Technology
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Fang et al. (Fri,) studied this question.
www.synapsesocial.com/papers/69d80f71a2a48916bbbeec3c — DOI: https://doi.org/10.1142/s1758825116500642
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