Fuzzy semi-active control and analysis of wind-induced vibration of a ship lift

Based on the dynamic characteristics obtained with a three-dimension finite element method, a reduced mechanical model and parameters for the ship lift can be modified and obtained. Simulated analysis shows that the reduced mechanical model can adequately represent the dynamic characteristics of the ship lift. The wind-induced vibrations and seismic responses of the structure were calculated respectively. A fuzzy semi-active control strategy for seismic response reduction using a magnetorheological damper was presented. A roof intelligent isolation system was also proposed. Simulation analysis results show that the fuzzy semi-active control with a magnetorheological smart damper is beneficial in suppressing the seismic whiplash effect on the top workshop and confirm that the fuzzy semi-active control strategy is valid in this scenario.