Optimum parameters of tuned liquid column damper for suppressing pitching vibration of an undamped structure

S. D. Xue, J. M. Ko, You Lin Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)


In order to evaluate the control performance of the tuned liquid column damper in suppressing pitching vibration of structures, an optimal parametric study of the damper is carried out for an undamped structure. The structure is assumed to be subjected to harmonic excitation in the analysis. The optimum tuning ratio (or the optimum liquid length) and the optimum head loss coefficient of the damper are determined using Den Hartog's method. The analytical formulas of the optimum TLCD parameters for the undamped structure are derived. The optimum peak amplitudes for the structure and the liquid are also obtained. Based on the developed analytical formulas, the practical solution procedures for finding the optimum parameters are proposed. The presented example indicates that the optimum TLCD parameters can be easily calculated from the developed formulas. With the help of this study, the understanding of TLCD behavior with respect to its optimum parameters is enhanced.
Original languageEnglish
Pages (from-to)639-653
Number of pages15
JournalJournal of Sound and Vibration
Issue number4
Publication statusPublished - 24 Aug 2000

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Mechanical Engineering

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