摘要

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 positioning capability is investigated, based on a novel synthesized positioning capability criterion. Comparison of positioning capabilities between vessels with different thruster configurations was performed on a semi-submersible. The DPCap results were generated by a newly developed software program. 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.

全文