ABSTRACT
In order to design optimal control force, several optimisation methods based on the chosen objective function have been synthesized. Typically, active and other control forces can be determined by using some control strategies, such as the Linear Quadratic Regulator (LQR), Linear Quadratic Gaussian (LQG), H2, H8 norms, Fuzzy Logic Control (FLC). These control systems can be considered as objective functions for optimisation of passive and active control problems between adjacent buildings. This chapter includes a summary of the control strategies. The conventional semi-active control strategy for an magnetorheological (MR) damper can be divided into two steps, primary and secondary controllers. The clipped-optimal control method is used to solve an optimal control problem and to calculate the optimum force. Damping force produced by MR damper has also limited capacity and mostly cannot satisfy the calculated optimal control force. An optimal design of fuzzy control rules and membership functions of the fuzzy controller is desired for efficiency.
