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<p>This study presents a novel intelligent hybrid seismic control system for a 10-storey shear building that integrates base isolation (BI) with an acceleration differential force-enhanced tuned mass damper inerter (BI-ADF-TMDI) and further extends it through active control to create the BI-ADF-ATMDI system. The key innovation lies in the mechanical configuration that connects the roof-mounted TMDI to the BI level via an inerter, as well as the incorporation of a passive acceleration differential force (ADF) mechanism that dissipates energy without requiring external power. To enhance adaptability, the system employs an active TMDI governed by a tilt-integral-derivative (TID) controller, whose parameters are optimally tuned using the multi-objective cheetah optimizer (MOCO) algorithm. Additionally, the MOCO algorithm is used to optimize the parameters of the three proposed systems: BI-TMDI, BI-ADF-TMDI, and BI-ADF-ATMDI. This study investigates the seismic performance of a structure equipped with these systems in comparison to an uncontrolled structure. Performance optimization was conducted using an artificial earthquake record, followed by rigorous validation across 23 diverse near-field seismic events. The results reveal that the BI-ADF-ATMDI system achieves significantly improved seismic performance as compared to its passive counterparts, demonstrating superior reductions in structural responses. All three proposed systems substantially outperform the uncontrolled structure, highlighting their effectiveness. Overall, this research establishes a robust methodology for system optimization and evaluation, contributing meaningfully to the advancement of seismic resilience in structural design.</p>

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A novel hybrid seismic control system utilizing the acceleration differential force between a base-isolated Building and an active tuned mass damper inerter under near-field excitations

  • 期刊论文

  • 发表日期：

    2026年1月22日

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  • Morteza Akbari,
  • Tomasz Falborski,
  • Robert Jankowski

摘要

This study presents a novel intelligent hybrid seismic control system for a 10-storey shear building that integrates base isolation (BI) with an acceleration differential force-enhanced tuned mass damper inerter (BI-ADF-TMDI) and further extends it through active control to create the BI-ADF-ATMDI system. The key innovation lies in the mechanical configuration that connects the roof-mounted TMDI to the BI level via an inerter, as well as the incorporation of a passive acceleration differential force (ADF) mechanism that dissipates energy without requiring external power. To enhance adaptability, the system employs an active TMDI governed by a tilt-integral-derivative (TID) controller, whose parameters are optimally tuned using the multi-objective cheetah optimizer (MOCO) algorithm. Additionally, the MOCO algorithm is used to optimize the parameters of the three proposed systems: BI-TMDI, BI-ADF-TMDI, and BI-ADF-ATMDI. This study investigates the seismic performance of a structure equipped with these systems in comparison to an uncontrolled structure. Performance optimization was conducted using an artificial earthquake record, followed by rigorous validation across 23 diverse near-field seismic events. The results reveal that the BI-ADF-ATMDI system achieves significantly improved seismic performance as compared to its passive counterparts, demonstrating superior reductions in structural responses. All three proposed systems substantially outperform the uncontrolled structure, highlighting their effectiveness. Overall, this research establishes a robust methodology for system optimization and evaluation, contributing meaningfully to the advancement of seismic resilience in structural design.