Investigation on Maneuverability of a Twin-Screw Ship Driven by One Screw

作     者：刘小健 范佘明 

作者机构：National Key Laboratory of Science and Technology on Water Jet PropulsionMarine Design and Research Institute of ChinaShanghai 200011China 

出 版 物：《Journal of Shanghai Jiaotong university(Science)》 (上海交通大学学报（英文版）)

年 卷 期：2017年第22卷第4期

页      面：434-439页

核心收录：

学科分类：08[工学] 0824[工学-船舶与海洋工程] 082401[工学-船舶与海洋结构物设计制造] 

基　　金：the Research and Manufacturing of LNG Ship Ministry of Industry and Information Technology China(No.K24161) 

主　　题：twin-screw ship screw failure maneuverability maneuvering model group(MMG) equation 

摘      要：It is possible for a twin-screw ship that one screw failure occurs during navigation, and the maneuverability in this case should be noticed by ship designers and operators. It is of great significance to evaluate the related risk. Firstly, a mathematical model for the twin-screw ship maneuvering motion with one failed screw is developed based on the maneuvering model group (MMG) equations, and verified by the model test results. Secondly, the maneuvering motions of a twin-screw liquefied natural gas (LNG) ship with one free rotating failure screw or with one locked failure screw are simulated and compared by using the mathematical model. It is shown that the numerical modeling results are in agreement with the model test results. Compared with those of normal navigation, the port turning ability of the ship with one failed port screw is better, but the starboard turning ability and yaw checking ability become worse. The maneuverability of the ship with locked failure screw is better than that with free failure screw, although the ship speed drops obviously. © 2017, Shanghai Jiaotong University and Springer-Verlag GmbH Germany.