The Scheme Design Of Soft Yoke Mooring System's Structure Of Marine Nuclear Power Platform

Single point mooring equipment is the main form of FPSO working in waters, and whose application field is quite wide, the soft yoke mooring system is the main form of single point mooring applied in Bohai Sea of China. This article is based on a demonstration project of Marine nuclear power platform, which mainly aims to complete the structure selection and optimization in the scheme design phase of the soft yoke mooring system.This article researches the environmental load of nuclear power platform by adopting the quasi static method, and the wind, wave, current and ice load of the nuclear-powered platform can be calculated respectively by referencing to the relevant specification of CCS under the condition of a once-in-a-century environment, therefore the total displacement of the nuclear-powered platform under the condition of the environment can be acquired.Based on the principle that the soft yoke mooring system mainly depends on the gravity of the yoke providing the restoring force of mooring system, and through analyzing the effect of the main dimension parameters to the stiffness of the system, at the same time considering the conditions of preventing the system resonance and collision, the main dimension parameters of the soft yoke mooring system that could satisfy the requirement of platform for the mooring force is put forward; Through the iterative analysis of the stiffness of the mooring system, environmental loads of platform and the main dimension parameters of the soft yoke mooring system, we inspect whether the designed main dimension parameters of the soft yoke mooring system meet the requirements of platform for the mooring force; Considering of economy, practicality and manufacturability, This article choose the optimal a set of principal dimensions satisfying the requirement of platform for the mooring force in many group dimension parameters as the design principal dimensions, and then get the stiffness curve of the soft yoke mooring system.By using the three-dimensional modeling software of Rhinoceros the three-dimensional structure of yoke can be drawn, and via using the calculation software of ABAQUS to analyze the strength of yoke can be analyzed, and then the yoke satisfied the design requirements can be gotten.