In view of the serious nonlinearity and uncertainty of fin stabilizer systems , lift was detected using bearing load on the basis of improving the conventional fin-axis in this paper .Then, the sensor installation method was presented . The fuzzy-switch adaptive nonlinear sliding-mode controller was designed .The switching term in the sliding-mode con-troller was fuzzy approximated and thereby became continuous with the design of the product inference engine , single-valued fuzzy controller , and center average solution fuzzy controller .Thus, the switching term is continuous , thereby ef-fectively reducing the chattering of system output and improving the anti-disturbance of fin stabilizers .Test platform sim-ulations were performed in a ship equipped with a fin stabilizer as an object .Simulation results indicate that the designed controller is robust against perturbations from the uncertain parameters of fin stabilizers and external disturbances .Under different sea conditions , the roll stabilization effect is increased to 83.51%~96.03%.%针对减摇鳍系统严重的非线性和不确定性问题,本文在常规鳍轴基础上进行改进,运用轴承负荷检测升力,并给出传感器的安装方式.设计切换模糊化的非线性自适应滑模控制器,利用乘积推理机、单值模糊器和中心平均解模糊器设计,将滑模控制器中的切换项进行模糊逼近使其连续化,可有效降低系统输出抖振,提高减摇鳍的抗干扰性.以一艘装备某型减摇鳍的船为对象进行实验台仿真分析,结果表明:所设计的减摇鳍控制系统对模型不确定参数摄动及外界干扰不敏感,具有较强鲁棒性.在不同海况下,减摇效果提高到83.51%~96.03%.
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