大型浮箱式坞门工作状态下的横稳性分析

Analysis of transverse stability of large floating caisson under working condition

用于现代修造船坞的钢质浮箱式坞门从早期的小型趋向大型、超大型。为了更好地进行浮箱式坞门的设计工作,根据浮箱式坞门的工作原理、结构形式和沉浮过程,结合实例分析,针对大型浮箱式坞门工作状态下的横稳心高度变化趋势进行总结,给出了横稳心高度变化的一般规律,发现坞门沉浮过程中横稳心高度的突变点及最危险的时刻,最后提出设计优化措施。

The steel floating caisson used in modern ship building and repairing tends to be large and ultralarge.In the design of the floating caisson,this paper describes the general variation law of the transverse meta-centric height according to the working principle,structural type and up-down process and in combination with the real case analysis,finds out the abrupt variation point and the most dangerous moment of the transverse metacentric height in the up-down process of the dock wall,and proposes the optimization measures of design.