Abstract
The steady-state response of a disk-beam coupled system having cyclically symmetric structure subjected to a sinusoidal point force is investigated analytically. The orthogonal polynomials generated using the Gram-Schmidt process and the eigenfunction of a uniform disk are employed as admissible functions, and artificial springs are introduced between the components to satisfy their continuity condition. The equations for steady-state response are derived by means of the Lagrange equation. The response curves of the system are calculated numerically to examine the effect of damping factors, the location of the driving point, the existence of the shroud, and the stiffness ratio of the disk and beams.
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