Dynamics of magnetic bead chain in magnetic field

Nobuyuki Nakayama*, Satoshi Yamada, Hiroyuki Kawamoto

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review


    Experimental and numerical investigations have been carried out on dynamics of magnetic bead chain in magnetic field. By the observation of vibration of chains formed on a solenoid coil, resonant frequency of the chains and equivalent stiffness were estimated. It was deduced that the resonant frequency was irrelevant to magnetic field, while the equivalent stiffness depended on magnetic field. From the numerical study using Distinct Element Method, it was also shown that the equivalent stiffness increased with the increase in magnetic field and decreased with the increase in chain length. Experimentally observed dependency of stiffness on magnetic field was explained as the combined effect of both magnetic field and chain length.

    Original languageEnglish
    Pages (from-to)2627-2634
    Number of pages8
    JournalNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
    Issue number9
    Publication statusPublished - 2002 Sept


    • Distinct element method
    • Information processing equipment
    • Laser printer
    • Magnetic brush development
    • Numerical analysis
    • Vibration of mechanism

    ASJC Scopus subject areas

    • Mechanical Engineering


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