Innovative modeling of Tuned Liquid Column Damper motion

Alberto Di Matteo, Antonina Pirrotta, Francesco L. Lo Iacono, Giacomo Navarra

Risultato della ricerca: Articlepeer review

31 Citazioni (Scopus)


In this paper a new model for the liquid motion within a Tuned Liquid Column Damper (TLCD) device is developed, based on the mathematical tool of fractional calculus. Although the increasing use of these devices for structural vibration control, it is shown that existing model does not always lead to accurate prediction of the liquid motion. A better model is then needed for accurate simulation of the behavior of TLCD systems. As regards, it has been demonstrated how correctly including the first linear liquid sloshing mode, through the equivalent mechanical analogy well established in literature, produces numerical results that highly match the corresponding experimental ones. Since the apparent effect of sloshing is the deviation of the natural frequency from the theoretical one, the authors propose a fractional differential equation of motion. The latter choice is supported by the fact that the introduction a fractional derivative of order α alters simultaneously both the resonant frequency and the degree of damping of the system. It will be shown, through an extensive experimental analysis, how the proposed model accurately describes liquid surface displacements.
Lingua originaleEnglish
pagine (da-a)229-244
Numero di pagine16
Stato di pubblicazionePublished - 2015

All Science Journal Classification (ASJC) codes

  • ???subjectarea.asjc.2600.2612???
  • ???subjectarea.asjc.2600.2611???
  • ???subjectarea.asjc.2600.2604???


Entra nei temi di ricerca di 'Innovative modeling of Tuned Liquid Column Damper motion'. Insieme formano una fingerprint unica.

Cita questo