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Nonlinear vibrations of a multi-span continuous beam subject to periodic impact excitation

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Abstract

Excessive vibrations could result from vertical impact forces. An electromechanical device has been constructed on an experimental rig to investigate the frequency-dependent vibrations of a multi-span beam made of two parallel rods, for a stationary periodic impactor. Experimental time histories, phase planes and a bifurcation diagram are presented to illustrate to richness of the system dynamics. Both period one and period two responses have been observed, as well as more complicated (chaotic) outcomes.

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Acknowledgments

The technical contribution from Mr. Noor Hashimi Mohamad Nor is gratefully acknowledged.

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Authors and Affiliations

  1. University of Nottingham Malaysia Campus, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia

    Sami Davtalab, Ko-Choong Woo & Cosmas Pandit Pagwiwoko

  2. Department of Civil and Building Engineering, and Architecture, Polytechnic University of Marche, Via Brecce Bianche, 60131, Ancona, Italy

    Stefano Lenci

Authors
  1. Sami Davtalab
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  2. Ko-Choong Woo
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  3. Cosmas Pandit Pagwiwoko
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  4. Stefano Lenci
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Correspondence to Sami Davtalab.

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Davtalab, S., Woo, KC., Pagwiwoko, C.P. et al. Nonlinear vibrations of a multi-span continuous beam subject to periodic impact excitation. Meccanica 50, 1227–1237 (2015). https://doi.org/10.1007/s11012-014-0092-x

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  • DOI: https://doi.org/10.1007/s11012-014-0092-x

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