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<p>The tuned mass damper inerter (TMDI) has gained prominence in structural engineering as an emerging passive control technology, offering efficient vibration mitigation for structures. The present work introduces the multiple tuned mass damper inerter (MTMDI) as an innovative system, which incorporates three masses with an inerter connected between the second and third masses of the damper. The infinity norms of the transfer functions for the story drift and acceleration are distinctly minimized to achieve robust tuning of the control systems. A benchmark building is modeled to evaluate the performance of MTMDI and two classical TMDI configurations in both frequency and time domains. The Escaping Bird Search Algorithm is utilized for such an optimization task, showing superior convergence over five other algorithms including Lightning Attachment Procedure Optimization, Stochastic Paint Optimizer, Black Widow Optimization Algorithm, Sine Cosine Algorithm, and Vortex Search. The tuned systems are further tested by a variety of far-field and near-field earthquake records, with and without velocity pulses. According to the results, MTMDI outperforms the conventional TMDI models in both the objectives, provided that the uncontrolled responses are not exceeded by MTMDI. The proposed design of MTMDI is thus recommended as a robust and efficient solution for seismic control of multi-story buildings, avoiding architectural and practical challenges of the classical TMDI systems.</p>

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Optimization of multiple tuned mass damper inerter by escaping bird search for seismic control of buildings

  • 期刊论文

  • 发表日期：

    2025年10月6日

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  • Mohsen Shahrouzi,
  • Maziar Fahimi-Farzam,
  • Javad Gholizadeh

摘要

The tuned mass damper inerter (TMDI) has gained prominence in structural engineering as an emerging passive control technology, offering efficient vibration mitigation for structures. The present work introduces the multiple tuned mass damper inerter (MTMDI) as an innovative system, which incorporates three masses with an inerter connected between the second and third masses of the damper. The infinity norms of the transfer functions for the story drift and acceleration are distinctly minimized to achieve robust tuning of the control systems. A benchmark building is modeled to evaluate the performance of MTMDI and two classical TMDI configurations in both frequency and time domains. The Escaping Bird Search Algorithm is utilized for such an optimization task, showing superior convergence over five other algorithms including Lightning Attachment Procedure Optimization, Stochastic Paint Optimizer, Black Widow Optimization Algorithm, Sine Cosine Algorithm, and Vortex Search. The tuned systems are further tested by a variety of far-field and near-field earthquake records, with and without velocity pulses. According to the results, MTMDI outperforms the conventional TMDI models in both the objectives, provided that the uncontrolled responses are not exceeded by MTMDI. The proposed design of MTMDI is thus recommended as a robust and efficient solution for seismic control of multi-story buildings, avoiding architectural and practical challenges of the classical TMDI systems.