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Background <p>With the widespread construction of high-rise buildings, improving their seismic performance has become a pressing concern in structural engineering. Traditional tuned mass damper (TMD) based strategies often suffer from reduced efficiency under broadband or low-frequency seismic excitations, significant sensitivity to mistuning, and the practical limitation of requiring large auxiliary masses to achieve satisfactory performance during high-intensity earthquakes.</p> Purpose <p>To address these challenges, this study proposes two novel Inertial Amplification Coupled Resonator systems (IACR-1 and IACR-2), which leverage inertial amplification to substantially enhance effective mass without increasing physical mass.</p> Methods <p>A dynamic model of the structural system is developed, and the design parameters are optimized using <i>H</i><sub>2</sub> optimization theory in conjunction with Particle Swarm Optimization algorithm (PSO).</p> Results <p>Numerical simulations demonstrate that the proposed IACR systems significantly reduce structural displacement responses under seismic excitations, particularly in high-frequency scenarios. Moreover, the IACR configurations consistently outperform the conventional Tuned Mass Damper (TMD) system, with IACR-2 exhibiting more stable and effective vibration control than IACR-1.</p> Conclusions <p>These findings confirm the feasibility and efficiency of PSO based optimization design and offer a promising direction for enhancing the seismic resilience of high-rise buildings.</p>

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Performance Evaluation of Inertial Amplifier with Resonator Systems for Vibration Control of Buildings

  • 期刊论文

  • 发表日期：

    2026年3月26日

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  • Huayang Li,
  • Xiaofang Kang,
  • Jianpeng Wei,
  • Jiajun Qin,
  • Xiao Huang,
  • Changqing Dai,
  • Likanglong Wan,
  • Xinyu Yang

摘要

Background

With the widespread construction of high-rise buildings, improving their seismic performance has become a pressing concern in structural engineering. Traditional tuned mass damper (TMD) based strategies often suffer from reduced efficiency under broadband or low-frequency seismic excitations, significant sensitivity to mistuning, and the practical limitation of requiring large auxiliary masses to achieve satisfactory performance during high-intensity earthquakes.

Purpose

To address these challenges, this study proposes two novel Inertial Amplification Coupled Resonator systems (IACR-1 and IACR-2), which leverage inertial amplification to substantially enhance effective mass without increasing physical mass.

Methods

A dynamic model of the structural system is developed, and the design parameters are optimized using H2 optimization theory in conjunction with Particle Swarm Optimization algorithm (PSO).

Results

Numerical simulations demonstrate that the proposed IACR systems significantly reduce structural displacement responses under seismic excitations, particularly in high-frequency scenarios. Moreover, the IACR configurations consistently outperform the conventional Tuned Mass Damper (TMD) system, with IACR-2 exhibiting more stable and effective vibration control than IACR-1.

Conclusions

These findings confirm the feasibility and efficiency of PSO based optimization design and offer a promising direction for enhancing the seismic resilience of high-rise buildings.