Experimental and analytical methods for predicting mechanical properties of MRF damper

S. Soda, N. Iwata, K. Sunakoda, H. Sodeyama, H. Fujitani

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Citations (Scopus)

    Abstract

    First part of this paper covers experimental studies on mechanical properties of two types of magneto-rheological fluid (MRF) dampers. One is a commercial built-in-pass type damper and the other an original by-pass type damper. In the test, they are subject to cyclic sinusoidal displacements with different amplitudes, velocities and intensities of magnetic field. Not only their hysteretic properties but also their quickness to respond to the applied magnetic field are examined. In the second part, two analytical methods to represent the mechanical properties of the dampers are presented. One is a semi-empirical method making use of a Bingham Model to simulate the hysteretic properties of the damper. The other one, an analytical method based on the theory of non-Newtonian fluid. A design formula to predict the resistance of the damper is so obtained as to take into consideration the damper's dimensions, the properties of the fluid and the intensity of the magnet field applied.

    Original languageEnglish
    Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
    EditorsS.C. Liu
    Pages201-211
    Number of pages11
    Volume4330
    DOIs
    Publication statusPublished - 2001
    EventSmart Systems for Bridges, Structures, and Highways-Smart Structures and Materials 2001- - Newport Beach, CA, United States
    Duration: 2001 Mar 52001 Mar 7

    Other

    OtherSmart Systems for Bridges, Structures, and Highways-Smart Structures and Materials 2001-
    CountryUnited States
    CityNewport Beach, CA
    Period01/3/501/3/7

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    Keywords

    • Bingham model
    • Built-in-pass
    • By-pass
    • Damper
    • Hysteretic loops
    • Magnetic Field
    • Magneto-rheological fluid
    • Non-Newtonian fluid
    • Semi-active control

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Condensed Matter Physics

    Cite this

    Soda, S., Iwata, N., Sunakoda, K., Sodeyama, H., & Fujitani, H. (2001). Experimental and analytical methods for predicting mechanical properties of MRF damper. In S. C. Liu (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4330, pp. 201-211) https://doi.org/10.1117/12.434119