不同螺旋桨配置下船舶的定位能力比较

动力定位能力分析对于螺旋桨和螺旋桨配置的选型非常重要，并且可以初步探究一个新设计的动力定位船舶的定位能力。该文中，基于一个新奇的综合动力定位能力标准，探究了螺旋桨的配置对动力定位能力的影响。不同螺旋桨配置下定位能力的比较在一个半潜平台上进行。动力定位能力的结果由一个最新编写的程序计算得到。从得到的结果看，螺旋桨的配置对动力定位能力产生影响。基于综合定位能力标准，定位能力的比较非常高效和准确。而且，可以得到一个结论：与海洋结构物的中心距离越大的螺旋桨对综合定位能力的影响越明显。

A Comparison of Positioning Capabilities between Vessels with Different Thruster Configurations

Dynamic Positioning Capability (DPCap) analysis is crucially important to the selection of thrusters and their configuration and the preliminary investigation of positioning ability of a newly designed dynamic positioning vessel. In this paper, the effect of the thruster configuration on the po-sitioning capability is investigated, based on a novel synthesized positioning capability criterion. Com-parison of positioning capabilities between vessels with different thruster configurations was per-formed on a semi-submersible. The DPCap results were generated by a newly developed software pro-gram. It has been demonstrated that the DPCap results are influenced by the thruster configurations. Based on the synthesized criterion, the comparison of positioning capabilities is highly efficient and accurate. Furthermore, it can be concluded that thruster with a larger distance to the origin of the vessel has more effect on the synthesized positioning capability.