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General dynamic equation and dynamical characteristics of viscoelastic Timoshenko beams

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Abstract

In this paper, a governing differential equation of viscoelastic Timoshenko beam including both extension and shear viscosity is developed in the time domain by direct method. To measure the complex moduli and three parameters of standard linear solid, the forced vibration technique of beam is successfully used for PCL and PMMA specimens. The dynamical characteristics of viscoelastic Timoshenko beams, especially the damping properties, are derived from a considerable number of numerical computations. The analyses show that the viscosity of materials has great influence on dynamical characteristics of structures, especially on damping, and the standard linear solid model is the better one for describing the dynamic behavior of high viscous materials.

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Authors and Affiliations

  1. Research Division of Engineering Mechanics, Shanxi Institute of Mechanical Engineering, Xi'an

    Xiao Can-zhang, Ji Yi-zhou & Chang Bao-ping

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  1. Xiao Can-zhang
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  2. Ji Yi-zhou
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  3. Chang Bao-ping
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Communicated by Jiang Yong-qiu

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Can-zhang, X., Yi-zhou, J. & Bao-ping, C. General dynamic equation and dynamical characteristics of viscoelastic Timoshenko beams. Appl Math Mech 11, 177–184 (1990). https://doi.org/10.1007/BF02014542

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  • DOI: https://doi.org/10.1007/BF02014542

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