Evaluation of the applicability of an energy method to calculate the damping in a lab-scale structure

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Abstract

The aim of this paper is to identify the local energy dissipation in a lab-scale structure by means of the energy flow analysis. In most of the existing approaches the damping is identified either in terms of the modal damping factors or at the material scale. In this paper, an alternative method to these global and material-based approaches by studying the energy flow around a certain part of the structure is proposed. The approach presented in this paper accounts for the energy flow through specific boundaries that surround the structural part of interest. Within this approach, the local energy dissipation can be calculated by isolating specific parts of the structure while taking into account the rest of the structure by means of the energy flux thorough the boundaries. This approach allows to identify both the total energy dissipation and the specific damping operator in the chosen part of the structure.

Original languageEnglish
Title of host publicationX International Conference on Structural Dynamics, EURODYN 2017
EditorsFabrizio Vestroni, Vincenzo Gattulli, Francesco Romeo
PublisherElsevier
Pages459-464
Number of pages6
Volume199
DOIs
Publication statusPublished - 2017
Event10th international conference on recent advances in structural dynamics - Faculty of Civil and Industrial Engineering of Sapienza University of Rome, Roma, Italy
Duration: 12 Jul 201014 Jul 2010
Conference number: 10
https://www.eurodyn2017.it/

Publication series

NameProcedia Engineering
PublisherElsevier
Volume199
ISSN (Electronic)1877-7058

Conference

Conference10th international conference on recent advances in structural dynamics
Abbreviated titleEURODYN 2017
CountryItaly
CityRoma
Period12/07/1014/07/10
Internet address

Keywords

  • Damping operator
  • Energy flow
  • identification
  • Lab-scale structure

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