锚泊辅助动力定位系统锚链及推进器复合失效研究

Research on the compound failure of the chain and thruster for a mooring assisted dynamic positioning system

锚泊辅助动力定位系统是一种新型的海上浮式结构物定位系统,具有定位精度高、功率消耗小等特点。本文以1艘半潜平台为例,对锚链及推进器复合失效模式下的锚泊辅助动力定位系统进行时域模拟,得到了复合失效模式下的定位精度以及功率消耗情况。根据时域模拟的结果,锚泊辅助动力定位系统在复合失效模式下仍能保持较高的定位精度,但平台总的功率消耗大幅增加,且将出现单个推进器功率消耗剧增的情况。本文的结论为实际工程应用提供了一些有价值的参考。

Mooring assisted dynamic positioning system is a new positioning system for the offshore floating structures,it has the advantages of high positioning accuracy and lower power consumption. In this paper, a semi-submersible platform was been used as an example to perform the time domain simulation in the compound failure mode and collect the positioning accuracy and power consumption. According to the time domain simulation result, it is suggested that the Mooring assisted dynamic positioning system can also achieve high positioning accuracy in the compound failure mode, but the power consumption become much higher, and there will be a single propeller power consumption increasing to a much higher level.The conclusion of this paper will be helpful to the further engineering applications.