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Data from: Isospectrals of non-uniform Rayleigh beams with respect to their uniform counterparts

Citation

Bhat K, Srivatsa; Ganguli, Ranjan (2018), Data from: Isospectrals of non-uniform Rayleigh beams with respect to their uniform counterparts, Dryad, Dataset, https://doi.org/10.5061/dryad.154dj

Abstract

In this paper, we look for non-uniform Rayleigh beams isospectral to a given uniform Rayleigh beam. Isospectral systems are those that have the same spectral properties, i.e. the same free vibration natural frequencies for a given boundary condition. A transformation is proposed that converts the fourth-order governing differential equation of non-uniform Rayleigh beam into a uniform Rayleigh beam. If the coefficients of the transformed equation match with those of the uniform beam equation, then the non-uniform beam is isospectral to the given uniform beam. The boundary-condition configuration should be preserved under this transformation. We present the constraints under which the boundary configurations will remain unchanged. Frequency equivalence of the non-uniform beams and the uniform beam is confirmed by the finite-element method. For the considered cases, examples of beams having a rectangular cross section are presented to show the application of our analysis.

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