Development of magnetorheological elastomers–based tuned mass damper for building protection from seismic events

Shuaishuai Sun, Jian Yang, Haiping Du, Shiwu Zhang, Tianhong Yan, Masami Nakano, Weihua Li

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

This study investigated and evaluated a semi-active tuned mass damper which incorporated four multi-layered structures fabricated using magnetorheological elastomers. The four magnetorheological elastomer structures formed a square and provided the tuned mass damper variable stiffness used to track the excitation frequencies. This design not only increases the stability of the tuned mass damper but more importantly eliminates the magnetic circuit gap in a design which we used in the past because all four of the magnetic circuits used to control the magnetorheological elastomer isolators are closed circuits. In order to verify the capability of the magnetorheological elastomer–based tuned mass damper to protect a building from earthquake, extensive simulation and experimental testing were conducted. The swept sinusoidal signal and the scaled 1940 El Centro earthquake record were used to excite a scaled three-story building. Both simulation and experiment have verified that the magnetorheological elastomer–based tuned mass damper outperformed all other passive tuned mass dampers under either swept sinusoidal or seismic conditions.

Original languageEnglish
Pages (from-to)1777-1789
Number of pages13
JournalJournal of Intelligent Material Systems and Structures
Volume29
Issue number8
DOIs
Publication statusPublished - 2018 May 1

Keywords

  • Tuned mass damper
  • building protection
  • magnetorheological elastomers
  • vibration control

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Development of magnetorheological elastomers–based tuned mass damper for building protection from seismic events'. Together they form a unique fingerprint.

Cite this