Active Vibration Control for Ship Structures

Archaist control methodology applied for active sliest reduction on superstructures using the H(subscript ∞) synthesis is presented. Based on this technique, the control law may be calculated according to the required objective. The designed control system will automatically meet the performance and robustness properties, which are given in the apecifications. Finally, the superstructure of a cargo ship subject wind gust and foundation oscillation is investigated. The results show that the active vibration control system designed by this scheme has an effective vibration attenuation for both excitations. In addition, this controller will maintain high performance even when there is a large perturbation in the system parameter.