Seismic Optimization for Hysteretic Damping-Tuned Mass Damper (HD-TMD) Subjected to White-Noise Excitation

The hysteretic damping tuned mass damper (HD-TMD) is composed of a spring element, (HD) and mass. HD force proportional to the displacement (TMD). Recently, application HD-TMD has emerged, but its optimal design still lacking. To fill this academic gap, numerical solutions for parameters subjected white-noise excitation were obtained based on H2 optimization criterion. Performance balance with weighting factor was carried out improve response structure system. A set earthquake records harmonic excitations conducted prove effectiveness performance design. It found that slightly better than traditional optimized TMD. As real TMD HD-TMD, variable friction pendulum (VFP-TMD) selected experience earthquakes proposed methods. Results showed provided best raised problem difficulty in maintaining linearity large displacement. Nevertheless, helped reduce defect impressive seismic mitigation capacity. Compared solution results, demonstrated 2.847% loss maximum structural reduction rate 3.709% root mean square during earthquake-excited period, respectively.