Experimental Investigation on Vibration Control of a Suspended Particle-Tuned Liquid Damper

The particle-tuned liquid damper (PTLD) can combine the functions of baffles and energy-dissipating materials, such as highly viscous liquids, by integrating particle dampers into a conventional tuned (TLD). However, particles distributed only at bottom container cannot drive motion water in middle layer to function effectively. Therefore, suspended (SPTLD) is proposed this study its effectiveness reliability are examined compared with TLD through shaking table tests. Based on experimental results, parametric analysis SPTLD further conducted investigate damping mechanism SPTLD, including number particles, excitations various amplitudes, use versus floating liquid. test results revealed that successfully controlled structural acceleration responses under seismic good reliability; peak response was reduced 67.4% RMS value 75.9%. In filled more effectively participate sloshing motion, superimposed effects involving collisions energy-dissipation mechanisms buoyancy hydraulic resistance lead an improvement vibration control performance. Furthermore, comparison (FPTLD) demonstrates better availability practical applications, especially for some slender structures limited plane space top floor.