Studies on structural vibration control with MR dampers using /spl mu/GA

This paper presents a new approach to reduce the seismic responses of spatial structures with magneto-rheological (MR) dampers using genetic algorithm with small populations (/spl mu/GA). /spl mu/GA is used to obtain the controller for the MR dampers for structural vibration reduction that is difficult to be solved by the classical optimal control. The advantages of /spl mu/GA are of global property and having little requirement of the conditions of the optimal function. Numerical results demonstrate the effectiveness of the proposed method in reducing the responses of structure to earthquake ground motions.