Análisis de la eficiencia de un amortiguador combinado sintonizado con incertidumbre en los parámetros sometido a una excitación sísmica de alto contenido de frecuencias

damper. The sensitivity of the optimal parameters, the tuning ratio and the head loss coefficient of the TLCD, and the tuning and damping ratio of the AMS are analyzed by including an uncertainty in the mass ratio and the length ratio. Reduction of displacement of the main structure is used as optimization criterion. The TCD efficiency and root mean square RMS of the main system displacement are obtained. The results show that the most sensitive parameter is the head loss coefficient, when faced with an uncertainty in the length ratio. It is concluded that the efficiency of the TCD and RMS of displacement of the main structure is insensitive to an uncertainty of less than 10%, both of the mass ratio and the length ratio.