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This study proposes an electromagnetic tuned vibration absorber (EMTVA), combining linear stiffness with nonlinear electromagnetic springs. The vibration control performance and working stroke of EMTVA are investigated under various seismic excitations compared with linear tuned vibration absorber (TVA). Parametric analysis is conducted to reveal the damping mechanism of EMTVA. The results show that EMTVA demonstrates comparable control performance to TVA with reduced working stroke. EMTVA effectively improves frequency robustness compared to linear TVA, providing better performance over a wider frequency range. Incorporating linear stiffness in EMTVA can reduce the sensitivity to excitation amplitude.

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Seismic Vibration Control Using an Electromagnetic Tuned Vibration Absorber

  • 会议论文

  • 发表日期：

    2025年

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  • Zheng Lu,
  • Mengyao Zhou,
  • Shikai Gao

摘要

This study proposes an electromagnetic tuned vibration absorber (EMTVA), combining linear stiffness with nonlinear electromagnetic springs. The vibration control performance and working stroke of EMTVA are investigated under various seismic excitations compared with linear tuned vibration absorber (TVA). Parametric analysis is conducted to reveal the damping mechanism of EMTVA. The results show that EMTVA demonstrates comparable control performance to TVA with reduced working stroke. EMTVA effectively improves frequency robustness compared to linear TVA, providing better performance over a wider frequency range. Incorporating linear stiffness in EMTVA can reduce the sensitivity to excitation amplitude.