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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/10776

Title: An improved computational strategy for vibration- proof structures equipped with nano-enhanced viscoelastic devices
Authors: Ntotsios, Evangelos
Palmeri, Alessandro
Keywords: Viscoelastic dampers
Modal analysis
Nonlinear dynamics
Issue Date: 2012
Publisher: International Association for Earthquake Engineering
Citation: NTOTSIOS, E. and PALMERI, A., 2012. An improved computational strategy for vibration- proof structures equipped with nano-enhanced viscoelastic devices. Presented at the 15th World Conference on Earthquake Engineering (15 WCEE), 24th to 28th September 2012, Lisbon, Portugal.
Abstract: Viscoelastic damping devices are effective in mitigating vibrations experienced by Civil Engineering structures subjected to natural actions, such as earthquakes, wind gusts or ocean waves. In this paper, an efficient computational framework for non-classically damped viscoelastic structures is proposed, allowing rheological information on nano-reinforced elastomeric devices to be incorporated in the time-domain dynamic analysis of structures equipped with such components. For thiss purpose, the Generalized Maxwell (GM) model and the Laguerre’s polynomial approximation (LPA) can be effectively adopted to represent the relaxation function of the viscoelastic materials, leading to an enlarged state-space model. It is also shown that these models can be used beyond the linear range, provided that the strain-dependent values of their mechanical parameters are identified.
Description: This is a conference paper.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/10776
Appears in Collections:Conference Papers and Presentations (Architecture, Building and Civil Engineering)

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