关键词: 船舶工程；三维势流理论；船舶运动响应幅值；缆绳张力；数值模型

Abstract: The process of standardization, upsizing and specialization of inland river ships is constantly accelerating. When ships sail in the Three Gorges Reservoir area in wind, wave, and current environments, they often encounter problems such as severe swaying motion, speed reduction, unstable heading and difficult maneuvering. Therefore, the reliability of ship emergency mooring system design in shallow waters of the Three Gorges Reservoir area has become an urgent problem to be solved in the field of ship engineering. Taking the typical ship in the Three Gorges Reservoir area as the research object, a numerical model of the ship emergency mooring system was established by use of ANASYS-AQWA, which was based on the three-dimensional potential flow theory. The design of different cable layout schemes was optimized, and the amplitude of ship motion response and cable tension with different mooring schemes were compared and analyzed. The research shows that compared with the cable arrangement scheme of the 4-4 mooring system, the cable arrangement scheme of the 4-2-2 mooring system has more rationality and superiority in terms of balancing the tension of the mooring cable. The proposed research method can provide a scientific and reliable theoretical basis for the design of emergency mooring system scheme for ships in shallow waters of the Three Gorges Reservoir area.

Key words: ship engineering; three-dimensional potential flow theory; ship motion response amplitude; cable tension; numerical model