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M. Lázaro¹, C.F. Casanova², L. Pallarés³ and P. Martín¹

¹Department of Continuum Mechanics and Theory of Structures, Polytechnic University of Valencia, Spain
²Department of Applied Physics, University of Granada, Spain
³Department of Construction Engineering and Civil Engineering Projects, Polytechnic University of Valencia, Spain

Keywords: viscoelastic damping, fractional derivatives, frequency response function, equivalent viscous model..

Summary

In this paper a new method for modeling one-dimensional structures with help of viscously damped systems is presented. The viscoelastic systems are widely used in structural dynamics. The main handicap of these models is the computational cost. This has motivated us to search for simpler and easier models capable of calculating the response with good approximation. In this sense, the viscously damped model is universally accepted as that with those properties. The single-degree of freedom are examined in first place. The essentials of the methodology are described. The extension to multiple-degree of freedom systems is presented as a natural generalization of the previous ones. The proposed equivalent viscous model can be solved with help of the traditional tools, characterized by a much higher computational efficiency, such as the state-space methods or the modal analysis, which are commonly used in dynamical problems. The theoretical results are contrasted with the aid of different numerical examples.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 106 PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: Paper 39 Approximate Solutions for Visco-Elastically Damped Beams M. Lázaro¹, C.F. Casanova², L. Pallarés³ and P. Martín¹ ¹Department of Continuum Mechanics and Theory of Structures, Polytechnic University of Valencia, Spain ²Department of Applied Physics, University of Granada, Spain ³Department of Construction Engineering and Civil Engineering Projects, Polytechnic University of Valencia, Spain doi:10.4203/ccp.106.39 purchase the full-text of this paper Full Bibliographic Reference for this paper , "Approximate Solutions for Visco-Elastically Damped Beams", in , (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 39, 2014. doi:10.4203/ccp.106.39 Keywords: viscoelastic damping, fractional derivatives, frequency response function, equivalent viscous model.. Summary In this paper a new method for modeling one-dimensional structures with help of viscously damped systems is presented. The viscoelastic systems are widely used in structural dynamics. The main handicap of these models is the computational cost. This has motivated us to search for simpler and easier models capable of calculating the response with good approximation. In this sense, the viscously damped model is universally accepted as that with those properties. The single-degree of freedom are examined in first place. The essentials of the methodology are described. The extension to multiple-degree of freedom systems is presented as a natural generalization of the previous ones. The proposed equivalent viscous model can be solved with help of the traditional tools, characterized by a much higher computational efficiency, such as the state-space methods or the modal analysis, which are commonly used in dynamical problems. The theoretical results are contrasted with the aid of different numerical examples. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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