Dynamic characteristics of magneto-rheological fluid damper

Katsuaki Sunakoda, Hiroshi Sodeyama, Norio Iwata, Hideo Fujitani, Satsuya Soda

研究成果: Conference contribution

35 引用 (Scopus)

抜粋

Two kinds of Magneto-rheological fluid damper (MRF damper) have been designed and manufactured. One has a nominal capacity of 2 kN and the other 20 kN. A bypass flow system is adopted for both dampers and each has the same capacity of electromagnet attached to the bypass portion. The effective fluid orifice is the rectangular space and the magnetic field is applied from the outside. A test was performed by applying different magnetic fields to the orifice portion of the rectangular space. The damping force and the force-displacement loop were evaluated. The test results yielded the following: 1) Two type's of dampers functioned by using one unit of the electromagnet under an appropriate electrical current control. 2) The magnitude of the damping force depends on the input magnetic field, but it has an upper limit. 3) Without an applied magnetic field, the MRF damper exhibits viscous-like behavior, while with a magnetic field it shows friction-like behavior. A mechanical model of the damper is estimated by taking account of the force-displacement loop. It is clarified that MRF dampers provide a technology that enables effective semi-active control in real building structures.

元の言語English
ホスト出版物のタイトルProceedings of SPIE - The International Society for Optical Engineering
出版者Society of Photo-Optical Instrumentation Engineers
ページ194-203
ページ数10
3989
出版物ステータスPublished - 2000
外部発表Yes
イベントSmart Structures and Materials 2000: Damping and Isolation - Newport Beach, CA, USA
継続期間: 2000 3 62000 3 8

Other

OtherSmart Structures and Materials 2000: Damping and Isolation
Newport Beach, CA, USA
期間00/3/600/3/8

    フィンガープリント

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

これを引用

Sunakoda, K., Sodeyama, H., Iwata, N., Fujitani, H., & Soda, S. (2000). Dynamic characteristics of magneto-rheological fluid damper. : Proceedings of SPIE - The International Society for Optical Engineering (巻 3989, pp. 194-203). Society of Photo-Optical Instrumentation Engineers.