Numerical evaluation method for semi-active damping characteristics of a passive-type MR damper with functional damping force

Takahiro Murakami, Masami Nakano

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An evaluation method for the damping force characteristics of a passive-type MR damper with functional damping characteristics equivalent to a semi-active damper is developed. Although the MR damper is a fully passive device without any electrical components such as sensors, power supplies, or power controllers, it exhibits a functional variable damping characteristic analogous to that of a semi-active damper. The developed evaluation method consists of static magnetic field analysis and algebraic equations representing the simplified fluid flow, and is executable with a low computational cost. The developed method was applied to the characteristic evaluation of a prototype passive-type MR damper. The obtained analytical results agree well with the measured damping force and the response characteristics of a single-degree-of-freedom system with the damper obtained in a shaking table test. These results indicate that the evaluation method can be effectively used when designing passive-type MR dampers.

Original languageEnglish
Pages (from-to)327-336
Number of pages10
JournalJournal of Intelligent Material Systems and Structures
Volume22
Issue number4
DOIs
Publication statusPublished - 2011 Mar 1

Keywords

  • damper
  • evaluation method
  • magnetorheological

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

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