Fuzzy Logic-Controlled Magnetorheological Dampers

A Fuzzy Inference System (FIS) is developed and evaluated for minimizing the vibrations of a three-story model building. A Magnetorheological (MR) damper is utilized in the building. Three sets of rules and two shapes of Membership Functions (MFs) are considered in this investigation. The story displacements, story accelerations, and inter-story drifts were employed to examine the controllers’ effectiveness. The third rule set (R3) exhibited the best displacement, acceleration, and drift performance for the first and second stories, where the most significant reduction was achieved. Moreover, the second rule set (R2) achieved the most significant decrease in the story’s drift and acceleration for the third story. A future study of additional input parameters and rulesets is recommended to optimize the controllers’ performance.