Development of large capacity semi-active vibration control device using magneto-rheological fluid

Hiroshi Sodeyama, Katsuaki Sunakoda, Kohei Suzuki, J. David Carlson, B. F. Spencer

Research output: Contribution to journalConference articlepeer-review


In recent years, there has been increasing research in several industrial fields for development of semi-active vibration control devices. In particular, devices using magneto-rheological (MR) fluids have been attracting great research interest because they can realize high performance as variable capacity dampers. MR fluids are controllable fluids that respond to applied magnetic fields. Applied magnetic fields drastically change the viscosity of MR fluids from an oily state to a semi-solid state. This paper deals with a study on a development of a large capacity device using an MR fluid, i.e., an MR damper. This developed MR damper provides a maximum damping force of 300 kN. Various tests were carried out and the dynamic characteristics, displacement-force hysteresis loops and controllable forces, were investigated. These tests verified that the MR damper provides a technology that enables effective semi-active control of large-scale structure systems, i.e. real buildings and civil engineering structures.

Original languageEnglish (US)
Pages (from-to)109-114
Number of pages6
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Issue number2
StatePublished - 2001
Externally publishedYes
Event2001 ASME Pressure Vessels and Piping Conference - Atlanta, GA, United States
Duration: Jul 22 2001Jul 26 2001

ASJC Scopus subject areas

  • Mechanical Engineering


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