The method of matched asymptotic expansions is employed to solve the singular perturbation problem of the vibrations of a rotating beam of small flexural rigidity with concentrated end masses. The problem is complicated by the appearance of the eigenvalue in the boundary conditions. Eigenfunctions and eigenvalues are developed as power series in the perturbation parameter β1/2 and results are given for mode shapes and eigenvalues through terms of the order of β.

Issue Section:
Research Papers
Topics:
Rotating beams, Eigenvalues, Boundary-value problems, Eigenfunctions, Mode shapes, Stiffness, Vibration
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