Vibration control of cables with damped flexible end restraint: Theoretical model and experimental verification

Jian Jiang*, Guo-Qiang Li, Yong Lu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

This paper presents the theoretical formulation and associated numerical and experimental studies on a novel passive control approach to reducing cable vibrations. In this approach, a damped flexible restraint consisting of a viscous damper and an elastic spring is attached to the end of cable in the horizontal direction to suppress its transverse vibrations. The dynamic equations of the cable-restraint system are established by D'Alembert's principle and then transformed into a set of ordinary differential equations through Garlerkin method. These equations are subsequently solved using the Runge-Kutta method. Parametric studies on a prototype cable are performed to investigate the influence of various parameters, particularly the damper coefficient and the spring stiffness, on the suppression of the cable vibrations. A series of laboratory experiments have also been carried out on a 9.5 m scaled cable with the installation of a damped flexible end restraint. The effectiveness of the approach has been verified from the experiments in that a system damping ratio of order of 2% was obtained. The experimental observations are found to be in good agreement with the theoretical predictions. (C) 2013 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)3626-3645
Number of pages20
JournalJournal of Sound and Vibration
Volume332
Issue number15
DOIs
Publication statusPublished - 22 Jul 2013

Keywords / Materials (for Non-textual outputs)

  • AXIAL SUPPORT MOTION
  • VISCOUS DAMPER
  • STAY CABLE
  • MAGNETORHEOLOGICAL DAMPERS
  • LONGITUDINAL CONTROL
  • SEMIACTIVE CONTROL
  • ACTIVE CONTROL
  • DESIGN
  • BRIDGE
  • SHALLOW

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