Vibration control of beams under moving loads using grounded tuned mass inerter systems

<p>The tuned mass inerter system (TMIS), which has been proven efficient for the moving-load-induced vibration control of beams, has better vibration absorption effect and less tuned mass than the tuned mass damper (TMD). This study proposes a grounded tuned mass inerter system (G-TMIS), consisting of a tuned spring, a mass, and a grounded inerter-based subsystem, which achieves higher space utilization and better vibration absorption performance. The application and optimization of G-TMISs for vibration suppression of multi-span beam under moving load series are investigated. Comparative analyses demonstrate that G-TMISs exhibit superior vibration mitigation compared to TMISs with equal tuned mass while requiring less overall weight to achieve identical structural performance demands. Additionally, vertical deflection and acceleration responses of the beam along with mitigated resonance reduce due to designed G-TMISs.</p>