文献类型：期刊文献

英文题名：Model Experimental Study on a T-Foil Control Method withAnti-Vertical Motion Optimization of the Mono Hull

作者：Sun, Yifang[1];Zhang, Dapeng[1];Wang, Yiqun[1];Zong, Zhi[2,3];Wu, Zongduo[1]

机构：[1]Guangdong Ocean Univ, Ship & Maritime Coll, Zhanjiang 524088, Peoples R China;[2]Dalian Univ Technol, Sch Naval Architecture, Liaoning Engn Lab Deep Sea Floating Struct, Dalian 116024, Peoples R China;[3]Collaborat Innovat Ctr Adv ship & Deep Sea Explora, Shanghai 200240, Peoples R China

年份：2023

卷号：11

期号：8

外文期刊名：JOURNAL OF MARINE SCIENCE AND ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001056139500001)、、Scopus(收录号：2-s2.0-85168876508)、WOS

基金：This research was funded by Program for Scientific Research Start-up Funds of Guangdong Ocean University, grant number 060302072102 and Zhanjiang Marine Youth Talent Project- Comparative Study, grant number 2021E5007.

语种：英文

外文关键词：anti-vertical motion; model test; T-foil; control method

外文摘要：T-foils with active control systems can adjust their attack angle according to the movement of the ship in real time, providing higher lift force and improving the seakeeping performance of a ship. The optimization of the control signal and that of the control method have an important influence on the effect of active T-foils. In this paper, the control method of the T-foil's swinging angle is established and optimized on the basis of model testing in order to increase the effect of the T-foil. First, the governing equation is introduced by establishing the proportional relationship between the angular motion of the hull and the lift moment of the T-foil. On the basis of the model of the T-foil's lift force, the governing equation of the T-foil's swinging angle is deduced and simplified using the test results of the ship model with a passive T-foil and without a T-foil. Then, the active T-foil control system is established by comparing the effects of T-foils with different control signals. Finally, the efficacies of the passive and active T-foil are reported and discussed. It is found that the pitch angular velocity is a more appropriate signal than the pitch angle and pitch angular acceleration. T-foils with pitch angular velocity control can decrease the vertical motion response in the resonance region of a ship's encounter frequency by more than about 20% compared to the case of the bare ship model, while also increasing the anti-bow acceleration effect by more than 15% compared to the case of passive control. The results obtained by model testing have a certain guiding significance for specific engineering practices.