Ship rudder rolling stabilization control method

The invention discloses a ship rudder rolling stabilization control method, which comprises the following steps of: establishing a ship linearized mathematical model, carrying out random sea wave spectrum modeling, establishing a simulation module and establishing a steering engine model; defining an input signal e and an input signal change rate ec of a controller and a discourse domain and a fuzzy set of a controller output u, then dividing a fuzzy control strategy into three layers according to the discourse domains of |e| and |ec|, and respectively adopting an outer-layer control strategy,a middle-layer control strategy and an inner-layer control strategy by the system according to different values of the |e| and the |ec|; defining membership degree functions of e, ec and u, and designing a control strategy of each layer through adopting a fuzzy inference method; and selecting quantification and scale factors of each layer according to indexes such as robustness, rapidity and disturbance suppression perfo