Abstract: This paper is based on the modal degree of controllability and the least cost function with a view to overcoming the difficulties faced arising out of the application of combined optimization to disposition actuators. In the paper, the genetic algorithm is used to solve the optimal disposition in active vibration control. The introduction of constraint condition in to conventional genetic algorithm is improved to fit into the solution of frame structures. Finally, a numerical example is presented to show the effectiveness of the method.

Key words: frame, genetic algorithm, active control, optimal disposition