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<p>To overcome the narrowband efficiency of linear piezoelectric dynamic vibration absorbers (LPDVAs) and achieve broadband energy harvesting, a magnetically coupled piezoelectric nonlinear energy harvesting absorber system is introduced within a cylindrical structure. This system enables simultaneous vibration suppression and energy harvesting under vortex-induced vibration. The proposed nonlinear piezoelectric dynamic vibration absorber (NPDVA) demonstrates mono-stability, bi-stability, and tri-stability through adjustments in the magnetic distance of external magnets. Unlike the LPDVAs, which exhibit optimal performance near resonant frequencies, the NPDVA is more robust and adaptable across varying parameter regions. To obtain a more suitable magnet distance, the NPDVA is optimized using multi-objective particle swarm optimization (MOPSO) by considering six wind speed cases within the lock-in range. Under the MOPSO conditions, the vortex-induced vibration amplitude of the cylindrical structure is reduced from 0.0373 to 0.01&#xa0;m at <i>U</i><sub>0</sub> = 4.8&#xa0;m/s, while concurrently generating a considerable voltage output of 62.91V. Therefore, this work provides valuable insights and methodologies&#xa0;for fluid–structure interaction vibration control and energy harvesting, presenting a theoretical framework for vibration mitigation and energy harvesting across a broad range of wind speeds.</p>

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Vortex-induced vibration suppression with nonlinear piezoelectric dynamic absorber

  • 期刊论文

  • 发表日期：

    2026年5月26日

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  • Haitao Li,
  • Yongkang Lu,
  • Meng Qi,
  • Zhongcai Zhang,
  • Binbin Diao,
  • Yuxi Lu,
  • Haoyang Yue,
  • Ni Song,
  • Jian He

摘要

To overcome the narrowband efficiency of linear piezoelectric dynamic vibration absorbers (LPDVAs) and achieve broadband energy harvesting, a magnetically coupled piezoelectric nonlinear energy harvesting absorber system is introduced within a cylindrical structure. This system enables simultaneous vibration suppression and energy harvesting under vortex-induced vibration. The proposed nonlinear piezoelectric dynamic vibration absorber (NPDVA) demonstrates mono-stability, bi-stability, and tri-stability through adjustments in the magnetic distance of external magnets. Unlike the LPDVAs, which exhibit optimal performance near resonant frequencies, the NPDVA is more robust and adaptable across varying parameter regions. To obtain a more suitable magnet distance, the NPDVA is optimized using multi-objective particle swarm optimization (MOPSO) by considering six wind speed cases within the lock-in range. Under the MOPSO conditions, the vortex-induced vibration amplitude of the cylindrical structure is reduced from 0.0373 to 0.01 m at U0 = 4.8 m/s, while concurrently generating a considerable voltage output of 62.91V. Therefore, this work provides valuable insights and methodologies for fluid–structure interaction vibration control and energy harvesting, presenting a theoretical framework for vibration mitigation and energy harvesting across a broad range of wind speeds.