吊艇架阻尼的非线性优化设计

Nonlinear Optimal Design of Davit Damping

针对吊艇架减摆系统,设计了基于母船横摇、纵摇两个自由度解耦的减摆结构,使阻尼器的减摆作用相互独立,互不影响。建立了该种减摆结构的模型,提出了利用船舶摇摆谱密度对模型进行了统计线性化分析,通过计算得出最优阻尼阀开口,针对被动减摆装置的局限性,利用模糊方法设计了最优阻尼的半主动控制策略。

The anti-sway structure is designed based on backstepping for davit anti-sway system, which makes the anti-sway function of the davit independent. This paper and designs the anti-swing control device of davit by backstepping. Through calculation of optimal damping, we get the optimal opening of valve. Aiming at the limitation of passive anti-sway device, the fuzzy method is used to design the optimal damping semi-active control strategy.