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    Response of beams resting on viscoelastically damped foundation to moving oscillators

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    Publication date
    2006
    Author
    Muscolino, G.
    Palmeri, Alessandro
    Keyword
    Dimension Analysis
    Modal Strain Energy Method
    Moving Oscillator
    Standard Linear Solid Model
    State-Space Equation
    Train-Track Interaction
    Viscoelastic Foundation
    Rights
    © 2006 Elsevier Ltd. Reproduced in accordance with the publisher's self-archiving policy.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    The response of beams resting on viscoelastically damped foundation under moving SDoF oscillators is scrutinized through a novel state-space formulation, in which a number of internal variables is introduced with the aim of representing the frequency-dependent behaviour of the viscoelastic foundation. A suitable single-step scheme is provided for the numerical integration of the equations of motion, and the Dimensional Analysis is applied in order to define the dimensionless combinations of the design parameters that rule the responses of beam and moving oscillator. The effects of boundary conditions, span length and number of modes of the beam, along with those of the mechanical properties of oscillator and foundation, are investigated in a new dimensionless form, and some interesting trends are highlighted. The inaccuracy associated with the use of effective values of stiffness and damping for the viscoelastic foundation, as usual in the present state-of-practice, is also quantified.
    URI
    http://hdl.handle.net/10454/604
    Citation
    Muscolino, G. and A. Palmeri (2006). Response of beams resting on viscoelastically damped foundation to moving oscillators. International Journal of Solids and Structures. Vol. 44 No. 5, pp. 1317-1336.
    Link to publisher’s version
    http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6VJS-4K6KB0P-5-11&_cdi=6102&_user=122861&_orig=browse&_coverDate=03%2F01%2F2007&_sk=999559994&view=c&wchp=dGLbVtb-zSkzS&md5=9837276d05f01a37c7bbdf18008b221f&ie=/sdarticle.pdf
    Type
    Article
    Collections
    Engineering and Informatics Publications

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