50000 t半潜船下潜试验关键技术  

On the Key Technology of Submersing Test of 50000 t Semi-submersible Vessel

作　　者：张延辉 左文安 田明琦 

机构地区：[1]海洋石油工程股份有限公司,天津300451 [2]中集船舶海洋工程设计研究院有限公司,上海201206

出　　处：《船海工程》2018年第1期16-19,25,共5页Ship & Ocean Engineering

摘　　要：针对500 00 t半潜船下潜过程中主甲板刚浸没时,水线面面积突然减小,导致横向初稳性高GM值较小,甚至可能出现负值的问题,结合下潜过程中的压载水的实际配载情况及线型,对下潜过程中GM值影响的关键性因素进行分析,得到下潜过程中初稳性的变化规律,提出相应的改进措施。结果表明,制定严格的下潜程序,控制影响稳性的关键性因素,下潜过程中的稳性满足船级社的衡准要求,能够保证下潜顺利实施。When the main deck of the 50 000 t semi-submersible vessel was being submerged,the transverse initial stability( GM) would become small value or even negative because the water-plane area decreases suddenly. Combing the actual loading situation of the ballast water and the hull shape,the key factors affecting GM were studied to propose the corresponding improvement measures. The result showed that the stability of submergence can meet the requirement of the classification society,and it can ensure the smooth implementation of the submergence through the development of strict submersing procedures and control of the key factors affecting stability.

关 键 词：下潜试验 初稳性 自由液面 空气管 U形弯 

分 类 号：U661.2[交通运输工程—船舶及航道工程]