Semiactive Wind Response Control of 76-Story Benchmark Building with Smart Piezoelectric Friction Dampers
A smart piezoelectric friction damper (SPFD) is presented based on improved Pall friction dampers and its damping force model is analyzed. The wind-induced vibration control of Benchmark model using semi-active control strategies based on the classical LQR is studied. The results of simulation analysis show that the semi-active control effects of the standard wind-control model with SPFD is evident. Compared to uncontrolled structures, the wind-induced vibration responses of the controlled structures are effectively reduced. In addition, parameter optimization of the semi-active control system based on the limit Hrovat optimal control algorithm is carried out. The analysis shows that the robustness of the semi-active control system to the stiffness uncertainty of Benchmark Model is very good, but the robustness to the damping uncertainty is not so good.
Guangfan Li, Yong Huang and Chaohe Chen
P. Dong and J. Fan, "Semiactive Wind Response Control of 76-Story Benchmark Building with Smart Piezoelectric Friction Dampers", Advanced Materials Research, Vols. 250-253, pp. 2196-2201, 2011