Semiactive Wind Response Control of 76-Story Benchmark Building with Smart Piezoelectric Friction Dampers

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 250-253)
• Pages: 2196-2201
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.250-253.2196
• Online since: May 2011
• Authors: Ping Dong, Jian Fan
• Keywords: Benchmark Model, Optimization, Semiactive Control, Smart Piezoelectric Friction Damper, Wind Response

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