文献类型：期刊文献

英文题名：Design and Comparison of H_∞/H₂ Controllers for Frigate Rudder Roll Stabilization

作者：Wang, Lijun[1];Xiros, Nikolaos I.[2];Loghis, Eleftherios K.[3]

机构：[1]Guangdong Ocean Univ, Sch Nav, Zhanjiang 524088, Peoples R China;[2]Univ New Orleans, Sch Naval Architecture & Marine Engn, New Orleans, LA 70148 USA;[3]Natl Tech Univ Athens, Sch Elect & Comp Engn, Zografos 15780, Greece

年份：2019

卷号：18

期号：4

起止页码：492

外文期刊名：JOURNAL OF MARINE SCIENCE AND APPLICATION

收录：ESCI(收录号：WOS:000519320400001)、WOS

语种：英文

外文关键词：Rudder roll stabilization; H-infinity/H-2 Controllers; Frigate

外文摘要：Roll motion of ships can be distinguished in two parts: an unavoidable part due to their natural movement while turning and an unwanted and avoidable part that is due to encounter with waves and rough seas in general. For the attenuation of the unwanted part of roll motion, ways have been developed such as addition of controllable fins and changes in shape. This paper investigates the effectiveness of augmenting the rudder used for rejecting part of the unwanted roll, while maintaining steering and course changing ability. For this purpose, a controller is designed, which acts through intentional superposition of fast, compared with course change, movements of rudder, in order to attenuate the high-frequency roll effects from encountering rough seas. The results obtained by simulation to exogenous disturbance support the conclusion that the roll stabilization for displacement can be effective at least when displacement hull vessels are considered. Moreover, robust stability and performance is verified for the proposed control scheme over the entire operating range of interest.