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Whirling of a forced cantilevered beam with static deflection. I: Primary resonance

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Abstract

The response of a slender, clastic, cantilevered beam to a transverse, vertical, harmonic excitation is investigated. The effects of nonlinear curvature, nonlinear inertia, viscous damping and static load are included. Previous work often has neglected the static deflection caused by the weight of the beam, which adds quadratic terms in the governing equations of motion. Galerkin's method is used with three modes and approximate solutions of the temporal equations are obtained by the method of multiple scales. Primary resonance is treated here, and out-of-plane motion is possible in the first and second modes when the principal moments of inertia of the beam cross-section are approximately equal. In Parts II and III, secondary resonances and nonstationary passages through various resonances are considered.

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  1. Virginia Polytechnic Institute and State University, 24061, Blacksburg, VA, U.S.A.

    I. -M. K. Shyu, D. T. Mook & R. H. Plaut

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  1. I. -M. K. Shyu
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  2. D. T. Mook
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  3. R. H. Plaut
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Shyu, I.M.K., Mook, D.T. & Plaut, R.H. Whirling of a forced cantilevered beam with static deflection. I: Primary resonance. Nonlinear Dyn 4, 227–249 (1993). https://doi.org/10.1007/BF00046322

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  • DOI: https://doi.org/10.1007/BF00046322

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