Development of a full-scale magnetorheological damper model for open-loop cable vibration control

Ru Zhang, Yi Qing Ni, Yuanfeng Duan, Jan Ming Ko

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

Modeling of magnetorheological (MR) dampers for cable vibration control to facilitate the design of even more effective and economical systems is still a challenging task. In this study, a parameter-adaptive three-element model is first established for a full-scale MR damper based on laboratory tests. The parameters of the model are represented by a set of empirical formulae in terms of displacement amplitude, voltage input, and excitation frequency. The model is then incorporated into the governing equation of cable-damper system for investigation of open-loop vibration control of stay cables in a cable-stayed bridge. The concept of optimal voltage/current input achieving the maximum damping for the system is put forward and verified. Multi-mode suboptimal and Single-mode optimal open-loop control method is then developed. Important conclusions are drawn on application issues and unique characteristics of open-loop cable vibration control using MR dampers.

Original languageEnglish
Pages (from-to)553-564
Number of pages12
JournalSmart Structures and Systems
Volume23
Issue number6
DOIs
Publication statusPublished - 1 Jan 2019

Keywords

  • Magnetorheological (MR) damper
  • Open-loop control
  • Stay cable
  • Vibration control

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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